diff options
Diffstat (limited to 'src/mac')
26 files changed, 2618 insertions, 0 deletions
diff --git a/src/mac/hmac/hmac_done.c b/src/mac/hmac/hmac_done.c new file mode 100644 index 0000000..f64d044 --- /dev/null +++ b/src/mac/hmac/hmac_done.c @@ -0,0 +1,109 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_done.c + HMAC support, terminate stream, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +#define HMAC_BLOCKSIZE hash_descriptor[hash].blocksize + +/** + Terminate an HMAC session + @param hmac The HMAC state + @param out [out] The destination of the HMAC authentication tag + @param outlen [in/out] The max size and resulting size of the HMAC authentication tag + @return CRYPT_OK if successful +*/ +int hmac_done(hmac_state *hmac, unsigned char *out, unsigned long *outlen) +{ + unsigned char *buf, *isha; + unsigned long hashsize, i; + int hash, err; + + LTC_ARGCHK(hmac != NULL); + LTC_ARGCHK(out != NULL); + + /* test hash */ + hash = hmac->hash; + if((err = hash_is_valid(hash)) != CRYPT_OK) { + return err; + } + + /* get the hash message digest size */ + hashsize = hash_descriptor[hash].hashsize; + + /* allocate buffers */ + buf = XMALLOC(HMAC_BLOCKSIZE); + isha = XMALLOC(hashsize); + if (buf == NULL || isha == NULL) { + if (buf != NULL) { + XFREE(buf); + } + if (isha != NULL) { + XFREE(isha); + } + return CRYPT_MEM; + } + + /* Get the hash of the first HMAC vector plus the data */ + if ((err = hash_descriptor[hash].done(&hmac->md, isha)) != CRYPT_OK) { + goto LBL_ERR; + } + + /* Create the second HMAC vector vector for step (3) */ + for(i=0; i < HMAC_BLOCKSIZE; i++) { + buf[i] = hmac->key[i] ^ 0x5C; + } + + /* Now calculate the "outer" hash for step (5), (6), and (7) */ + if ((err = hash_descriptor[hash].init(&hmac->md)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = hash_descriptor[hash].process(&hmac->md, buf, HMAC_BLOCKSIZE)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = hash_descriptor[hash].process(&hmac->md, isha, hashsize)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = hash_descriptor[hash].done(&hmac->md, buf)) != CRYPT_OK) { + goto LBL_ERR; + } + + /* copy to output */ + for (i = 0; i < hashsize && i < *outlen; i++) { + out[i] = buf[i]; + } + *outlen = i; + + err = CRYPT_OK; +LBL_ERR: + XFREE(hmac->key); +#ifdef LTC_CLEAN_STACK + zeromem(isha, hashsize); + zeromem(buf, hashsize); + zeromem(hmac, sizeof(*hmac)); +#endif + + XFREE(isha); + XFREE(buf); + + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_done.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_file.c b/src/mac/hmac/hmac_file.c new file mode 100644 index 0000000..f88d692 --- /dev/null +++ b/src/mac/hmac/hmac_file.c @@ -0,0 +1,93 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_file.c + HMAC support, process a file, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +/** + HMAC a file + @param hash The index of the hash you wish to use + @param fname The name of the file you wish to HMAC + @param key The secret key + @param keylen The length of the secret key + @param out [out] The HMAC authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag + @return CRYPT_OK if successful, CRYPT_NOP if file support has been disabled +*/ +int hmac_file(int hash, const char *fname, + const unsigned char *key, unsigned long keylen, + unsigned char *out, unsigned long *outlen) +{ +#ifdef LTC_NO_FILE + return CRYPT_NOP; +#else + hmac_state hmac; + FILE *in; + unsigned char buf[512]; + size_t x; + int err; + + LTC_ARGCHK(fname != NULL); + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + if((err = hash_is_valid(hash)) != CRYPT_OK) { + return err; + } + + if ((err = hmac_init(&hmac, hash, key, keylen)) != CRYPT_OK) { + return err; + } + + in = fopen(fname, "rb"); + if (in == NULL) { + return CRYPT_FILE_NOTFOUND; + } + + /* process the file contents */ + do { + x = fread(buf, 1, sizeof(buf), in); + if ((err = hmac_process(&hmac, buf, (unsigned long)x)) != CRYPT_OK) { + /* we don't trap this error since we're already returning an error! */ + fclose(in); + return err; + } + } while (x == sizeof(buf)); + + if (fclose(in) != 0) { + return CRYPT_ERROR; + } + + /* get final hmac */ + if ((err = hmac_done(&hmac, out, outlen)) != CRYPT_OK) { + return err; + } + +#ifdef LTC_CLEAN_STACK + /* clear memory */ + zeromem(buf, sizeof(buf)); +#endif + return CRYPT_OK; +#endif +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_file.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_init.c b/src/mac/hmac/hmac_init.c new file mode 100644 index 0000000..e64d47f --- /dev/null +++ b/src/mac/hmac/hmac_init.c @@ -0,0 +1,112 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_init.c + HMAC support, initialize state, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +#define HMAC_BLOCKSIZE hash_descriptor[hash].blocksize + +/** + Initialize an HMAC context. + @param hmac The HMAC state + @param hash The index of the hash you want to use + @param key The secret key + @param keylen The length of the secret key (octets) + @return CRYPT_OK if successful +*/ +int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned long keylen) +{ + unsigned char *buf; + unsigned long hashsize; + unsigned long i, z; + int err; + + LTC_ARGCHK(hmac != NULL); + LTC_ARGCHK(key != NULL); + + /* valid hash? */ + if ((err = hash_is_valid(hash)) != CRYPT_OK) { + return err; + } + hmac->hash = hash; + hashsize = hash_descriptor[hash].hashsize; + + /* valid key length? */ + if (keylen == 0) { + return CRYPT_INVALID_KEYSIZE; + } + + /* allocate ram for buf */ + buf = XMALLOC(HMAC_BLOCKSIZE); + if (buf == NULL) { + return CRYPT_MEM; + } + + /* allocate memory for key */ + hmac->key = XMALLOC(HMAC_BLOCKSIZE); + if (hmac->key == NULL) { + XFREE(buf); + return CRYPT_MEM; + } + + /* (1) make sure we have a large enough key */ + if(keylen > HMAC_BLOCKSIZE) { + z = HMAC_BLOCKSIZE; + if ((err = hash_memory(hash, key, keylen, hmac->key, &z)) != CRYPT_OK) { + goto LBL_ERR; + } + if(hashsize < HMAC_BLOCKSIZE) { + zeromem((hmac->key) + hashsize, (size_t)(HMAC_BLOCKSIZE - hashsize)); + } + keylen = hashsize; + } else { + XMEMCPY(hmac->key, key, (size_t)keylen); + if(keylen < HMAC_BLOCKSIZE) { + zeromem((hmac->key) + keylen, (size_t)(HMAC_BLOCKSIZE - keylen)); + } + } + + /* Create the initial vector for step (3) */ + for(i=0; i < HMAC_BLOCKSIZE; i++) { + buf[i] = hmac->key[i] ^ 0x36; + } + + /* Pre-pend that to the hash data */ + if ((err = hash_descriptor[hash].init(&hmac->md)) != CRYPT_OK) { + goto LBL_ERR; + } + + if ((err = hash_descriptor[hash].process(&hmac->md, buf, HMAC_BLOCKSIZE)) != CRYPT_OK) { + goto LBL_ERR; + } + goto done; +LBL_ERR: + /* free the key since we failed */ + XFREE(hmac->key); +done: +#ifdef LTC_CLEAN_STACK + zeromem(buf, HMAC_BLOCKSIZE); +#endif + + XFREE(buf); + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_init.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_memory.c b/src/mac/hmac/hmac_memory.c new file mode 100644 index 0000000..99959f4 --- /dev/null +++ b/src/mac/hmac/hmac_memory.c @@ -0,0 +1,77 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_memory.c + HMAC support, process a block of memory, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +/** + HMAC a block of memory to produce the authentication tag + @param hash The index of the hash to use + @param key The secret key + @param keylen The length of the secret key (octets) + @param in The data to HMAC + @param inlen The length of the data to HMAC (octets) + @param out [out] Destination of the authentication tag + @param outlen [in/out] Max size and resulting size of authentication tag + @return CRYPT_OK if successful +*/ +int hmac_memory(int hash, + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen) +{ + hmac_state *hmac; + int err; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for hmac state */ + hmac = XMALLOC(sizeof(hmac_state)); + if (hmac == NULL) { + return CRYPT_MEM; + } + + if ((err = hmac_init(hmac, hash, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + + if ((err = hmac_process(hmac, in, inlen)) != CRYPT_OK) { + goto LBL_ERR; + } + + if ((err = hmac_done(hmac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } + + err = CRYPT_OK; +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(hmac, sizeof(hmac_state)); +#endif + + XFREE(hmac); + return err; +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_memory.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_memory_multi.c b/src/mac/hmac/hmac_memory_multi.c new file mode 100644 index 0000000..b7a6d96 --- /dev/null +++ b/src/mac/hmac/hmac_memory_multi.c @@ -0,0 +1,92 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" +#include <stdarg.h> + +/** + @file hmac_memory_multi.c + HMAC support, process multiple blocks of memory, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +/** + HMAC multiple blocks of memory to produce the authentication tag + @param hash The index of the hash to use + @param key The secret key + @param keylen The length of the secret key (octets) + @param out [out] Destination of the authentication tag + @param outlen [in/out] Max size and resulting size of authentication tag + @param in The data to HMAC + @param inlen The length of the data to HMAC (octets) + @param ... tuples of (data,len) pairs to HMAC, terminated with a (NULL,x) (x=don't care) + @return CRYPT_OK if successful +*/ +int hmac_memory_multi(int hash, + const unsigned char *key, unsigned long keylen, + unsigned char *out, unsigned long *outlen, + const unsigned char *in, unsigned long inlen, ...) + +{ + hmac_state *hmac; + int err; + va_list args; + const unsigned char *curptr; + unsigned long curlen; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for hmac state */ + hmac = XMALLOC(sizeof(hmac_state)); + if (hmac == NULL) { + return CRYPT_MEM; + } + + if ((err = hmac_init(hmac, hash, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + + va_start(args, inlen); + curptr = in; + curlen = inlen; + for (;;) { + /* process buf */ + if ((err = hmac_process(hmac, curptr, curlen)) != CRYPT_OK) { + goto LBL_ERR; + } + /* step to next */ + curptr = va_arg(args, const unsigned char*); + if (curptr == NULL) { + break; + } + curlen = va_arg(args, unsigned long); + } + if ((err = hmac_done(hmac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(hmac, sizeof(hmac_state)); +#endif + XFREE(hmac); + va_end(args); + return err; +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_memory_multi.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_process.c b/src/mac/hmac/hmac_process.c new file mode 100644 index 0000000..2919282 --- /dev/null +++ b/src/mac/hmac/hmac_process.c @@ -0,0 +1,43 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_process.c + HMAC support, process data, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +/** + Process data through HMAC + @param hmac The hmac state + @param in The data to send through HMAC + @param inlen The length of the data to HMAC (octets) + @return CRYPT_OK if successful +*/ +int hmac_process(hmac_state *hmac, const unsigned char *in, unsigned long inlen) +{ + int err; + LTC_ARGCHK(hmac != NULL); + LTC_ARGCHK(in != NULL); + if ((err = hash_is_valid(hmac->hash)) != CRYPT_OK) { + return err; + } + return hash_descriptor[hmac->hash].process(&hmac->md, in, inlen); +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_process.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/hmac/hmac_test.c b/src/mac/hmac/hmac_test.c new file mode 100644 index 0000000..87758f5 --- /dev/null +++ b/src/mac/hmac/hmac_test.c @@ -0,0 +1,316 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hmac_test.c + HMAC support, self-test, Tom St Denis/Dobes Vandermeer +*/ + +#ifdef HMAC + +#define HMAC_BLOCKSIZE hash_descriptor[hash].blocksize + +/* + TEST CASES SOURCE: + +Network Working Group P. Cheng +Request for Comments: 2202 IBM +Category: Informational R. Glenn + NIST + September 1997 + Test Cases for HMAC-MD5 and HMAC-SHA-1 +*/ + +/** + HMAC self-test + @return CRYPT_OK if successful, CRYPT_NOP if tests have been disabled. +*/ +int hmac_test(void) +{ + #ifndef LTC_TEST + return CRYPT_NOP; + #else + unsigned char digest[MAXBLOCKSIZE]; + int i; + + static const struct hmac_test_case { + int num; + char *algo; + unsigned char key[128]; + unsigned long keylen; + unsigned char data[128]; + unsigned long datalen; + unsigned char digest[MAXBLOCKSIZE]; + } cases[] = { + /* + 3. Test Cases for HMAC-SHA-1 + + test_case = 1 + key = 0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b + key_len = 20 + data = "Hi Ther 20 + digest = 0x4c1a03424b55e07fe7f27be1d58bb9324a9a5a04 + digest-96 = 0x4c1a03424b55e07fe7f27be1 + */ + { 5, "sha1", + {0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x0c, 0x0c}, 20, + "Test With Truncation", 20, + {0x4c, 0x1a, 0x03, 0x42, 0x4b, 0x55, 0xe0, 0x7f, 0xe7, 0xf2, + 0x7b, 0xe1, 0xd5, 0x8b, 0xb9, 0x32, 0x4a, 0x9a, 0x5a, 0x04} }, + + /* + test_case = 6 + key = 0xaa repeated 80 times + key_len = 80 + data = "Test Using Larger Than Block-Size Key - Hash Key First" + data_len = 54 + digest = 0xaa4ae5e15272d00e95705637ce8a3b55ed402112 + */ + { 6, "sha1", + {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80, + "Test Using Larger Than Block-Size Key - Hash Key First", 54, + {0xaa, 0x4a, 0xe5, 0xe1, 0x52, 0x72, 0xd0, 0x0e, + 0x95, 0x70, 0x56, 0x37, 0xce, 0x8a, 0x3b, 0x55, + 0xed, 0x40, 0x21, 0x12} }, + + /* + test_case = 7 + key = 0xaa repeated 80 times + key_len = 80 + data = "Test Using Larger Than Block-Size Key and Larger + Than One Block-Size Data" + data_len = 73 + digest = 0xe8e99d0f45237d786d6bbaa7965c7808bbff1a91 + */ + { 7, "sha1", + {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80, + "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data", 73, + {0xe8, 0xe9, 0x9d, 0x0f, 0x45, 0x23, 0x7d, 0x78, 0x6d, + 0x6b, 0xba, 0xa7, 0x96, 0x5c, 0x78, 0x08, 0xbb, 0xff, 0x1a, 0x91} }, + + /* + 2. Test Cases for HMAC-MD5 + + test_case = 1 + key = 0x0b 0b 0b 0b + 0b 0b 0b 0b + 0b 0b 0b 0b + 0b 0b 0b 0b + key_len = 16 + data = "Hi There" + data_len = 8 + digest = 0x92 94 72 7a + 36 38 bb 1c + 13 f4 8e f8 + 15 8b fc 9d + */ + { 1, "md5", + {0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, + 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b}, 16, + "Hi There", 8, + {0x92, 0x94, 0x72, 0x7a, 0x36, 0x38, 0xbb, 0x1c, + 0x13, 0xf4, 0x8e, 0xf8, 0x15, 0x8b, 0xfc, 0x9d} }, + /* + test_case = 2 + key = "Jefe" + key_len = 4 + data = "what do ya want for nothing?" + data_len = 28 + digest = 0x750c783e6ab0b503eaa86e310a5db738 + */ + { 2, "md5", + "Jefe", 4, + "what do ya want for nothing?", 28, + {0x75, 0x0c, 0x78, 0x3e, 0x6a, 0xb0, 0xb5, 0x03, + 0xea, 0xa8, 0x6e, 0x31, 0x0a, 0x5d, 0xb7, 0x38} }, + + /* + test_case = 3 + key = 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + key_len 16 + data = 0xdd repeated 50 times + data_len = 50 + digest = 0x56be34521d144c88dbb8c733f0e8b3f6 + */ + { 3, "md5", + {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 16, + {0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, + 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, + 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, + 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, + 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd}, 50, + {0x56, 0xbe, 0x34, 0x52, 0x1d, 0x14, 0x4c, 0x88, + 0xdb, 0xb8, 0xc7, 0x33, 0xf0, 0xe8, 0xb3, 0xf6} }, + /* + + test_case = 4 + key = 0x0102030405060708090a0b0c0d0e0f10111213141516171819 + key_len 25 + data = 0xcd repeated 50 times + data_len = 50 + digest = 0x697eaf0aca3a3aea3a75164746ffaa79 + */ + { 4, "md5", + {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, + 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, + 0x15, 0x16, 0x17, 0x18, 0x19}, 25, + {0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, + 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, + 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, + 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, + 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd}, 50, + {0x69, 0x7e, 0xaf, 0x0a, 0xca, 0x3a, 0x3a, 0xea, + 0x3a, 0x75, 0x16, 0x47, 0x46, 0xff, 0xaa, 0x79} }, + + + /* + + test_case = 5 + key = 0x0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c + key_len = 16 + data = "Test With Truncation" + data_len = 20 + digest = 0x56461ef2342edc00f9bab995690efd4c + digest-96 0x56461ef2342edc00f9bab995 + */ + { 5, "md5", + {0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c}, 16, + "Test With Truncation", 20, + {0x56, 0x46, 0x1e, 0xf2, 0x34, 0x2e, 0xdc, 0x00, + 0xf9, 0xba, 0xb9, 0x95, 0x69, 0x0e, 0xfd, 0x4c} }, + + /* + + test_case = 6 + key = 0xaa repeated 80 times + key_len = 80 + data = "Test Using Larger Than Block-Size Key - Hash +Key First" + data_len = 54 + digest = 0x6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd + */ + { 6, "md5", + {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80, + "Test Using Larger Than Block-Size Key - Hash Key First", 54, + {0x6b, 0x1a, 0xb7, 0xfe, 0x4b, 0xd7, 0xbf, 0x8f, + 0x0b, 0x62, 0xe6, 0xce, 0x61, 0xb9, 0xd0, 0xcd} }, + + /* + + test_case = 7 + key = 0xaa repeated 80 times + key_len = 80 + data = "Test Using Larger Than Block-Size Key and Larger + Than One Block-Size Data" + data_len = 73 + digest = 0x6f630fad67cda0ee1fb1f562db3aa53e + */ + { 7, "md5", + {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80, + "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data", 73, + {0x6f, 0x63, 0x0f, 0xad, 0x67, 0xcd, 0xa0, 0xee, + 0x1f, 0xb1, 0xf5, 0x62, 0xdb, 0x3a, 0xa5, 0x3e} } + }; + + unsigned long outlen; + int err; + int tested=0,failed=0; + for(i=0; i < (int)(sizeof(cases) / sizeof(cases[0])); i++) { + int hash = find_hash(cases[i].algo); + if (hash == -1) continue; + ++tested; + outlen = sizeof(digest); + if((err = hmac_memory(hash, cases[i].key, cases[i].keylen, cases[i].data, cases[i].datalen, digest, &outlen)) != CRYPT_OK) { +#if 0 + printf("HMAC-%s test #%d, %s\n", cases[i].algo, cases[i].num, error_to_string(err)); +#endif + return err; + } + + if(memcmp(digest, cases[i].digest, (size_t)hash_descriptor[hash].hashsize) != 0) { + failed++; +#if 0 + unsigned int j; + printf("\nHMAC-%s test #%d:\n", cases[i].algo, cases[i].num); + printf( "Result: 0x"); + for(j=0; j < hash_descriptor[hash].hashsize; j++) { + printf("%2x ", digest[j]); + } + printf("\nCorrect: 0x"); + for(j=0; j < hash_descriptor[hash].hashsize; j++) { + printf("%2x ", cases[i].digest[j]); + } + printf("\n"); + return CRYPT_ERROR; +#endif + } else { + /* printf("HMAC-%s test #%d: Passed\n", cases[i].algo, cases[i].num); */ + } + } + + if (failed != 0) { + return CRYPT_FAIL_TESTVECTOR; + } else if (tested == 0) { + return CRYPT_NOP; + } else { + return CRYPT_OK; + } + #endif +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/hmac/hmac_test.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_done.c b/src/mac/omac/omac_done.c new file mode 100644 index 0000000..37292d5 --- /dev/null +++ b/src/mac/omac/omac_done.c @@ -0,0 +1,84 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_done.c + OMAC1 support, terminate a stream, Tom St Denis +*/ + +#ifdef OMAC + +/** + Terminate an OMAC stream + @param omac The OMAC state + @param out [out] Destination for the authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag + @return CRYPT_OK if successful +*/ +int omac_done(omac_state *omac, unsigned char *out, unsigned long *outlen) +{ + int err, mode; + unsigned x; + + LTC_ARGCHK(omac != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + if ((err = cipher_is_valid(omac->cipher_idx)) != CRYPT_OK) { + return err; + } + + if ((omac->buflen > (int)sizeof(omac->block)) || (omac->buflen < 0) || + (omac->blklen > (int)sizeof(omac->block)) || (omac->buflen > omac->blklen)) { + return CRYPT_INVALID_ARG; + } + + /* figure out mode */ + if (omac->buflen != omac->blklen) { + /* add the 0x80 byte */ + omac->block[omac->buflen++] = 0x80; + + /* pad with 0x00 */ + while (omac->buflen < omac->blklen) { + omac->block[omac->buflen++] = 0x00; + } + mode = 1; + } else { + mode = 0; + } + + /* now xor prev + Lu[mode] */ + for (x = 0; x < (unsigned)omac->blklen; x++) { + omac->block[x] ^= omac->prev[x] ^ omac->Lu[mode][x]; + } + + /* encrypt it */ + cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->block, omac->block, &omac->key); + cipher_descriptor[omac->cipher_idx].done(&omac->key); + + /* output it */ + for (x = 0; x < (unsigned)omac->blklen && x < *outlen; x++) { + out[x] = omac->block[x]; + } + *outlen = x; + +#ifdef LTC_CLEAN_STACK + zeromem(omac, sizeof(*omac)); +#endif + return CRYPT_OK; +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_done.c,v $ */ +/* $Revision: 1.4 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_file.c b/src/mac/omac/omac_file.c new file mode 100644 index 0000000..63784b0 --- /dev/null +++ b/src/mac/omac/omac_file.c @@ -0,0 +1,83 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_file.c + OMAC1 support, process a file, Tom St Denis +*/ + +#ifdef OMAC + +/** + OMAC a file + @param cipher The index of the cipher desired + @param key The secret key + @param keylen The length of the secret key (octets) + @param filename The name of the file you wish to OMAC + @param out [out] Where the authentication tag is to be stored + @param outlen [in/out] The max size and resulting size of the authentication tag + @return CRYPT_OK if successful, CRYPT_NOP if file support has been disabled +*/ +int omac_file(int cipher, + const unsigned char *key, unsigned long keylen, + const char *filename, + unsigned char *out, unsigned long *outlen) +{ +#ifdef LTC_NO_FILE + return CRYPT_NOP; +#else + int err, x; + omac_state omac; + FILE *in; + unsigned char buf[512]; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(filename != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + in = fopen(filename, "rb"); + if (in == NULL) { + return CRYPT_FILE_NOTFOUND; + } + + if ((err = omac_init(&omac, cipher, key, keylen)) != CRYPT_OK) { + fclose(in); + return err; + } + + do { + x = fread(buf, 1, sizeof(buf), in); + if ((err = omac_process(&omac, buf, x)) != CRYPT_OK) { + fclose(in); + return err; + } + } while (x == sizeof(buf)); + fclose(in); + + if ((err = omac_done(&omac, out, outlen)) != CRYPT_OK) { + return err; + } + +#ifdef LTC_CLEAN_STACK + zeromem(buf, sizeof(buf)); +#endif + + return CRYPT_OK; +#endif +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_file.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_init.c b/src/mac/omac/omac_init.c new file mode 100644 index 0000000..8866772 --- /dev/null +++ b/src/mac/omac/omac_init.c @@ -0,0 +1,99 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_init.c + OMAC1 support, initialize state, by Tom St Denis +*/ + + +#ifdef OMAC + +/** + Initialize an OMAC state + @param omac The OMAC state to initialize + @param cipher The index of the desired cipher + @param key The secret key + @param keylen The length of the secret key (octets) + @return CRYPT_OK if successful +*/ +int omac_init(omac_state *omac, int cipher, const unsigned char *key, unsigned long keylen) +{ + int err, x, y, mask, msb, len; + + LTC_ARGCHK(omac != NULL); + LTC_ARGCHK(key != NULL); + + /* schedule the key */ + if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { + return err; + } + +#ifdef LTC_FAST + if (cipher_descriptor[cipher].block_length % sizeof(LTC_FAST_TYPE)) { + return CRYPT_INVALID_ARG; + } +#endif + + /* now setup the system */ + switch (cipher_descriptor[cipher].block_length) { + case 8: mask = 0x1B; + len = 8; + break; + case 16: mask = 0x87; + len = 16; + break; + default: return CRYPT_INVALID_ARG; + } + + if ((err = cipher_descriptor[cipher].setup(key, keylen, 0, &omac->key)) != CRYPT_OK) { + return err; + } + + /* ok now we need Lu and Lu^2 [calc one from the other] */ + + /* first calc L which is Ek(0) */ + zeromem(omac->Lu[0], cipher_descriptor[cipher].block_length); + cipher_descriptor[cipher].ecb_encrypt(omac->Lu[0], omac->Lu[0], &omac->key); + + /* now do the mults, whoopy! */ + for (x = 0; x < 2; x++) { + /* if msb(L * u^(x+1)) = 0 then just shift, otherwise shift and xor constant mask */ + msb = omac->Lu[x][0] >> 7; + + /* shift left */ + for (y = 0; y < (len - 1); y++) { + omac->Lu[x][y] = ((omac->Lu[x][y] << 1) | (omac->Lu[x][y+1] >> 7)) & 255; + } + omac->Lu[x][len - 1] = ((omac->Lu[x][len - 1] << 1) ^ (msb ? mask : 0)) & 255; + + /* copy up as require */ + if (x == 0) { + XMEMCPY(omac->Lu[1], omac->Lu[0], sizeof(omac->Lu[0])); + } + } + + /* setup state */ + omac->cipher_idx = cipher; + omac->buflen = 0; + omac->blklen = len; + zeromem(omac->prev, sizeof(omac->prev)); + zeromem(omac->block, sizeof(omac->block)); + + return CRYPT_OK; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_init.c,v $ */ +/* $Revision: 1.5 $ */ +/* $Date: 2005/06/06 10:22:44 $ */ diff --git a/src/mac/omac/omac_memory.c b/src/mac/omac/omac_memory.c new file mode 100644 index 0000000..3b1521c --- /dev/null +++ b/src/mac/omac/omac_memory.c @@ -0,0 +1,75 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_memory.c + OMAC1 support, process a block of memory, Tom St Denis +*/ + +#ifdef OMAC + +/** + OMAC a block of memory + @param cipher The index of the desired cipher + @param key The secret key + @param keylen The length of the secret key (octets) + @param in The data to send through OMAC + @param inlen The length of the data to send through OMAC (octets) + @param out [out] The destination of the authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag (octets) + @return CRYPT_OK if successful +*/ +int omac_memory(int cipher, + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen) +{ + int err; + omac_state *omac; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for omac state */ + omac = XMALLOC(sizeof(omac_state)); + if (omac == NULL) { + return CRYPT_MEM; + } + + /* omac process the message */ + if ((err = omac_init(omac, cipher, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = omac_process(omac, in, inlen)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = omac_done(omac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } + + err = CRYPT_OK; +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(omac, sizeof(omac_state)); +#endif + + XFREE(omac); + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_memory.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_memory_multi.c b/src/mac/omac/omac_memory_multi.c new file mode 100644 index 0000000..52f7323 --- /dev/null +++ b/src/mac/omac/omac_memory_multi.c @@ -0,0 +1,90 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" +#include <stdarg.h> + +/** + @file omac_memory_multi.c + OMAC1 support, process multiple blocks of memory, Tom St Denis +*/ + +#ifdef OMAC + +/** + OMAC multiple blocks of memory + @param cipher The index of the desired cipher + @param key The secret key + @param keylen The length of the secret key (octets) + @param out [out] The destination of the authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag (octets) + @param in The data to send through OMAC + @param inlen The length of the data to send through OMAC (octets) + @param ... tuples of (data,len) pairs to OMAC, terminated with a (NULL,x) (x=don't care) + @return CRYPT_OK if successful +*/ +int omac_memory_multi(int cipher, + const unsigned char *key, unsigned long keylen, + unsigned char *out, unsigned long *outlen, + const unsigned char *in, unsigned long inlen, ...) +{ + int err; + omac_state *omac; + va_list args; + const unsigned char *curptr; + unsigned long curlen; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for omac state */ + omac = XMALLOC(sizeof(omac_state)); + if (omac == NULL) { + return CRYPT_MEM; + } + + /* omac process the message */ + if ((err = omac_init(omac, cipher, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + va_start(args, inlen); + curptr = in; + curlen = inlen; + for (;;) { + /* process buf */ + if ((err = omac_process(omac, curptr, curlen)) != CRYPT_OK) { + goto LBL_ERR; + } + /* step to next */ + curptr = va_arg(args, const unsigned char*); + if (curptr == NULL) { + break; + } + curlen = va_arg(args, unsigned long); + } + if ((err = omac_done(omac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(omac, sizeof(omac_state)); +#endif + XFREE(omac); + va_end(args); + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_memory_multi.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_process.c b/src/mac/omac/omac_process.c new file mode 100644 index 0000000..ca3ec6b --- /dev/null +++ b/src/mac/omac/omac_process.c @@ -0,0 +1,84 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_process.c + OMAC1 support, process data, Tom St Denis +*/ + + +#ifdef OMAC + +/** + Process data through OMAC + @param omac The OMAC state + @param in The input data to send through OMAC + @param inlen The length of the input (octets) + @return CRYPT_OK if successful +*/ +int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen) +{ + unsigned long n, x; + int err; + + LTC_ARGCHK(omac != NULL); + LTC_ARGCHK(in != NULL); + if ((err = cipher_is_valid(omac->cipher_idx)) != CRYPT_OK) { + return err; + } + + if ((omac->buflen > (int)sizeof(omac->block)) || (omac->buflen < 0) || + (omac->blklen > (int)sizeof(omac->block)) || (omac->buflen > omac->blklen)) { + return CRYPT_INVALID_ARG; + } + +#ifdef LTC_FAST + if (omac->buflen == 0 && inlen > 16) { + int y; + for (x = 0; x < (inlen - 16); x += 16) { + for (y = 0; y < 16; y += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)(&omac->prev[y])) ^= *((LTC_FAST_TYPE*)(&in[y])); + } + in += 16; + cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->prev, omac->prev, &omac->key); + } + inlen -= x; + } +#endif + + while (inlen != 0) { + /* ok if the block is full we xor in prev, encrypt and replace prev */ + if (omac->buflen == omac->blklen) { + for (x = 0; x < (unsigned long)omac->blklen; x++) { + omac->block[x] ^= omac->prev[x]; + } + cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->block, omac->prev, &omac->key); + omac->buflen = 0; + } + + /* add bytes */ + n = MIN(inlen, (unsigned long)(omac->blklen - omac->buflen)); + XMEMCPY(omac->block + omac->buflen, in, n); + omac->buflen += n; + inlen -= n; + in += n; + } + + return CRYPT_OK; +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_process.c,v $ */ +/* $Revision: 1.6 $ */ +/* $Date: 2005/05/05 14:35:58 $ */ diff --git a/src/mac/omac/omac_test.c b/src/mac/omac/omac_test.c new file mode 100644 index 0000000..1bc9ead --- /dev/null +++ b/src/mac/omac/omac_test.c @@ -0,0 +1,110 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file omac_test.c + OMAC1 support, self-test, by Tom St Denis +*/ + +#ifdef OMAC + +/** + Test the OMAC setup + @return CRYPT_OK if successful, CRYPT_NOP if tests have been disabled +*/ +int omac_test(void) +{ +#if !defined(LTC_TEST) + return CRYPT_NOP; +#else + static const struct { + int keylen, msglen; + unsigned char key[16], msg[64], tag[16]; + } tests[] = { + { 16, 0, + { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, + 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, + { 0x00 }, + { 0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28, + 0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46 } + }, + { 16, 16, + { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, + 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, + { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, + 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a }, + { 0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44, + 0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c } + }, + { 16, 40, + { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, + 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, + { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, + 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, + 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, + 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11 }, + { 0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30, + 0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27 } + }, + { 16, 64, + { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, + 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, + { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, + 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, + 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, + 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, + 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, + 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, + 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 }, + { 0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92, + 0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe } + } + + }; + unsigned char out[16]; + int x, err, idx; + unsigned long len; + + + /* AES can be under rijndael or aes... try to find it */ + if ((idx = find_cipher("aes")) == -1) { + if ((idx = find_cipher("rijndael")) == -1) { + return CRYPT_NOP; + } + } + + for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) { + len = sizeof(out); + if ((err = omac_memory(idx, tests[x].key, tests[x].keylen, tests[x].msg, tests[x].msglen, out, &len)) != CRYPT_OK) { + return err; + } + + if (memcmp(out, tests[x].tag, 16) != 0) { +#if 0 + int y; + printf("\n\nTag: "); + for (y = 0; y < 16; y++) printf("%02x", out[y]); printf("\n\n"); +#endif + return CRYPT_FAIL_TESTVECTOR; + } + } + return CRYPT_OK; +#endif +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_test.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pelican/pelican.c b/src/mac/pelican/pelican.c new file mode 100644 index 0000000..85bf9ee --- /dev/null +++ b/src/mac/pelican/pelican.c @@ -0,0 +1,165 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pelican.c + Pelican MAC, initialize state, by Tom St Denis +*/ + +#ifdef PELICAN + +#define ENCRYPT_ONLY +#include "../../ciphers/aes/aes_tab.c" + + +/** + Initialize a Pelican state + @param pelmac The Pelican state to initialize + @param key The secret key + @param keylen The length of the secret key (octets) + @return CRYPT_OK if successful +*/ +int pelican_init(pelican_state *pelmac, const unsigned char *key, unsigned long keylen) +{ + int err; + + LTC_ARGCHK(pelmac != NULL); + LTC_ARGCHK(key != NULL); + +#ifdef LTC_FAST + if (16 % sizeof(LTC_FAST_TYPE)) { + return CRYPT_INVALID_ARG; + } +#endif + + if ((err = aes_setup(key, keylen, 0, &pelmac->K)) != CRYPT_OK) { + return err; + } + + zeromem(pelmac->state, 16); + aes_ecb_encrypt(pelmac->state, pelmac->state, &pelmac->K); + pelmac->buflen = 0; + + return CRYPT_OK; +} + +static void four_rounds(pelican_state *pelmac) +{ + ulong32 s0, s1, s2, s3, t0, t1, t2, t3; + int r; + + LOAD32H(s0, pelmac->state ); + LOAD32H(s1, pelmac->state + 4); + LOAD32H(s2, pelmac->state + 8); + LOAD32H(s3, pelmac->state + 12); + for (r = 0; r < 4; r++) { + t0 = + Te0(byte(s0, 3)) ^ + Te1(byte(s1, 2)) ^ + Te2(byte(s2, 1)) ^ + Te3(byte(s3, 0)); + t1 = + Te0(byte(s1, 3)) ^ + Te1(byte(s2, 2)) ^ + Te2(byte(s3, 1)) ^ + Te3(byte(s0, 0)); + t2 = + Te0(byte(s2, 3)) ^ + Te1(byte(s3, 2)) ^ + Te2(byte(s0, 1)) ^ + Te3(byte(s1, 0)); + t3 = + Te0(byte(s3, 3)) ^ + Te1(byte(s0, 2)) ^ + Te2(byte(s1, 1)) ^ + Te3(byte(s2, 0)); + s0 = t0; s1 = t1; s2 = t2; s3 = t3; + } + STORE32H(s0, pelmac->state ); + STORE32H(s1, pelmac->state + 4); + STORE32H(s2, pelmac->state + 8); + STORE32H(s3, pelmac->state + 12); +} + +/** + Process a block of text through Pelican + @param pelmac The Pelican MAC state + @param in The input + @param inlen The length input (octets) + @return CRYPT_OK on success + */ +int pelican_process(pelican_state *pelmac, const unsigned char *in, unsigned long inlen) +{ + + LTC_ARGCHK(pelmac != NULL); + LTC_ARGCHK(in != NULL); + + /* check range */ + if (pelmac->buflen < 0 || pelmac->buflen > 15) { + return CRYPT_INVALID_ARG; + } + +#ifdef LTC_FAST + if (pelmac->buflen == 0) { + while (inlen & ~15) { + int x; + for (x = 0; x < 16; x += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)((unsigned char *)pelmac->state + x)) ^= *((LTC_FAST_TYPE*)((unsigned char *)in + x)); + } + four_rounds(pelmac); + in += 16; + inlen -= 16; + } + } +#endif + + while (inlen--) { + pelmac->state[pelmac->buflen++] ^= *in++; + if (pelmac->buflen == 16) { + four_rounds(pelmac); + pelmac->buflen = 0; + } + } + return CRYPT_OK; +} + +/** + Terminate Pelican MAC + @param pelmac The Pelican MAC state + @param out [out] The TAG + @return CRYPT_OK on sucess +*/ +int pelican_done(pelican_state *pelmac, unsigned char *out) +{ + LTC_ARGCHK(pelmac != NULL); + LTC_ARGCHK(out != NULL); + + /* check range */ + if (pelmac->buflen < 0 || pelmac->buflen > 16) { + return CRYPT_INVALID_ARG; + } + + if (pelmac->buflen == 16) { + four_rounds(pelmac); + pelmac->buflen = 0; + } + pelmac->state[pelmac->buflen++] ^= 0x80; + aes_ecb_encrypt(pelmac->state, out, &pelmac->K); + aes_done(&pelmac->K); + return CRYPT_OK; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pelican/pelican.c,v $ */ +/* $Revision: 1.16 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pelican/pelican_memory.c b/src/mac/pelican/pelican_memory.c new file mode 100644 index 0000000..093340d --- /dev/null +++ b/src/mac/pelican/pelican_memory.c @@ -0,0 +1,59 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pelican_memory.c + Pelican MAC, MAC a block of memory, by Tom St Denis +*/ + +#ifdef PELICAN + +/** + Pelican block of memory + @param key The key for the MAC + @param keylen The length of the key (octets) + @param in The input to MAC + @param inlen The length of the input (octets) + @param out [out] The output TAG + @return CRYPT_OK on success +*/ +int pelican_memory(const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out) +{ + pelican_state *pel; + int err; + + pel = XMALLOC(sizeof(*pel)); + if (pel == NULL) { + return CRYPT_MEM; + } + + if ((err = pelican_init(pel, key, keylen)) != CRYPT_OK) { + XFREE(pel); + return err; + } + if ((err = pelican_process(pel, in ,inlen)) != CRYPT_OK) { + XFREE(pel); + return err; + } + err = pelican_done(pel, out); + XFREE(pel); + return err; +} + + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pelican/pelican_memory.c,v $ */ +/* $Revision: 1.5 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pelican/pelican_test.c b/src/mac/pelican/pelican_test.c new file mode 100644 index 0000000..06ec3f0 --- /dev/null +++ b/src/mac/pelican/pelican_test.c @@ -0,0 +1,120 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pelican_test.c + Pelican MAC, test, by Tom St Denis +*/ + +#ifdef PELICAN + +int pelican_test(void) +{ +#ifndef LTC_TEST + return CRYPT_NOP; +#else + static const struct { + unsigned char K[32], MSG[64], T[16]; + int keylen, ptlen; + } tests[] = { +/* K=16, M=0 */ +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0 }, + { 0xeb, 0x58, 0x37, 0x15, 0xf8, 0x34, 0xde, 0xe5, + 0xa4, 0xd1, 0x6e, 0xe4, 0xb9, 0xd7, 0x76, 0x0e, }, + 16, 0 +}, + +/* K=16, M=3 */ +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0x00, 0x01, 0x02 }, + { 0x1c, 0x97, 0x40, 0x60, 0x6c, 0x58, 0x17, 0x2d, + 0x03, 0x94, 0x19, 0x70, 0x81, 0xc4, 0x38, 0x54, }, + 16, 3 +}, + +/* K=16, M=16 */ +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0x03, 0xcc, 0x46, 0xb8, 0xac, 0xa7, 0x9c, 0x36, + 0x1e, 0x8c, 0x6e, 0xa6, 0x7b, 0x89, 0x32, 0x49, }, + 16, 16 +}, + +/* K=16, M=32 */ +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, + { 0x89, 0xcc, 0x36, 0x58, 0x1b, 0xdd, 0x4d, 0xb5, + 0x78, 0xbb, 0xac, 0xf0, 0xff, 0x8b, 0x08, 0x15, }, + 16, 32 +}, + +/* K=16, M=35 */ +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, + 0x20, 0x21, 0x23 }, + { 0x4a, 0x7d, 0x45, 0x4d, 0xcd, 0xb5, 0xda, 0x8d, + 0x48, 0x78, 0x16, 0x48, 0x5d, 0x45, 0x95, 0x99, }, + 16, 35 +}, +}; + int x, err; + unsigned char out[16]; + pelican_state pel; + + for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) { + if ((err = pelican_init(&pel, tests[x].K, tests[x].keylen)) != CRYPT_OK) { + return err; + } + if ((err = pelican_process(&pel, tests[x].MSG, tests[x].ptlen)) != CRYPT_OK) { + return err; + } + if ((err = pelican_done(&pel, out)) != CRYPT_OK) { + return err; + } + + if (memcmp(out, tests[x].T, 16)) { +#if 0 + int y; + printf("\nFailed test %d\n", x); + printf("{ "); for (y = 0; y < 16; ) { printf("0x%02x, ", out[y]); if (!(++y & 7)) printf("\n"); } printf(" }\n"); +#endif + return CRYPT_FAIL_TESTVECTOR; + } + } + return CRYPT_OK; +#endif +} + + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pelican/pelican_test.c,v $ */ +/* $Revision: 1.9 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_done.c b/src/mac/pmac/pmac_done.c new file mode 100644 index 0000000..09c430c --- /dev/null +++ b/src/mac/pmac/pmac_done.c @@ -0,0 +1,72 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_done.c + PMAC implementation, terminate a session, by Tom St Denis +*/ + +#ifdef PMAC + +int pmac_done(pmac_state *state, unsigned char *out, unsigned long *outlen) +{ + int err, x; + + LTC_ARGCHK(state != NULL); + LTC_ARGCHK(out != NULL); + if ((err = cipher_is_valid(state->cipher_idx)) != CRYPT_OK) { + return err; + } + + if ((state->buflen > (int)sizeof(state->block)) || (state->buflen < 0) || + (state->block_len > (int)sizeof(state->block)) || (state->buflen > state->block_len)) { + return CRYPT_INVALID_ARG; + } + + + /* handle padding. If multiple xor in L/x */ + + if (state->buflen == state->block_len) { + /* xor Lr against the checksum */ + for (x = 0; x < state->block_len; x++) { + state->checksum[x] ^= state->block[x] ^ state->Lr[x]; + } + } else { + /* otherwise xor message bytes then the 0x80 byte */ + for (x = 0; x < state->buflen; x++) { + state->checksum[x] ^= state->block[x]; + } + state->checksum[x] ^= 0x80; + } + + /* encrypt it */ + cipher_descriptor[state->cipher_idx].ecb_encrypt(state->checksum, state->checksum, &state->key); + cipher_descriptor[state->cipher_idx].done(&state->key); + + /* store it */ + for (x = 0; x < state->block_len && x <= (int)*outlen; x++) { + out[x] = state->checksum[x]; + } + *outlen = x; + +#ifdef LTC_CLEAN_STACK + zeromem(state, sizeof(*state)); +#endif + return CRYPT_OK; +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_done.c,v $ */ +/* $Revision: 1.4 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_file.c b/src/mac/pmac/pmac_file.c new file mode 100644 index 0000000..1034c6f --- /dev/null +++ b/src/mac/pmac/pmac_file.c @@ -0,0 +1,84 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_file.c + PMAC implementation, process a file, by Tom St Denis +*/ + +#ifdef PMAC + +/** + PMAC a file + @param cipher The index of the cipher desired + @param key The secret key + @param keylen The length of the secret key (octets) + @param filename The name of the file to send through PMAC + @param out [out] Destination for the authentication tag + @param outlen [in/out] Max size and resulting size of the authentication tag + @return CRYPT_OK if successful, CRYPT_NOP if file support has been disabled +*/ +int pmac_file(int cipher, + const unsigned char *key, unsigned long keylen, + const char *filename, + unsigned char *out, unsigned long *outlen) +{ +#ifdef LTC_NO_FILE + return CRYPT_NOP; +#else + int err, x; + pmac_state pmac; + FILE *in; + unsigned char buf[512]; + + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(filename != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + in = fopen(filename, "rb"); + if (in == NULL) { + return CRYPT_FILE_NOTFOUND; + } + + if ((err = pmac_init(&pmac, cipher, key, keylen)) != CRYPT_OK) { + fclose(in); + return err; + } + + do { + x = fread(buf, 1, sizeof(buf), in); + if ((err = pmac_process(&pmac, buf, x)) != CRYPT_OK) { + fclose(in); + return err; + } + } while (x == sizeof(buf)); + fclose(in); + + if ((err = pmac_done(&pmac, out, outlen)) != CRYPT_OK) { + return err; + } + +#ifdef LTC_CLEAN_STACK + zeromem(buf, sizeof(buf)); +#endif + + return CRYPT_OK; +#endif +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_file.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_init.c b/src/mac/pmac/pmac_init.c new file mode 100644 index 0000000..5bd94a0 --- /dev/null +++ b/src/mac/pmac/pmac_init.c @@ -0,0 +1,144 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_init.c + PMAC implementation, initialize state, by Tom St Denis +*/ + +#ifdef PMAC + +static const struct { + int len; + unsigned char poly_div[MAXBLOCKSIZE], + poly_mul[MAXBLOCKSIZE]; +} polys[] = { +{ + 8, + { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0D }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1B } +}, { + 16, + { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87 } +} +}; + +/** + Initialize a PMAC state + @param pmac The PMAC state to initialize + @param cipher The index of the desired cipher + @param key The secret key + @param keylen The length of the secret key (octets) + @return CRYPT_OK if successful +*/ +int pmac_init(pmac_state *pmac, int cipher, const unsigned char *key, unsigned long keylen) +{ + int poly, x, y, m, err; + unsigned char *L; + + LTC_ARGCHK(pmac != NULL); + LTC_ARGCHK(key != NULL); + + /* valid cipher? */ + if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { + return err; + } + + /* determine which polys to use */ + pmac->block_len = cipher_descriptor[cipher].block_length; + for (poly = 0; poly < (int)(sizeof(polys)/sizeof(polys[0])); poly++) { + if (polys[poly].len == pmac->block_len) { + break; + } + } + if (polys[poly].len != pmac->block_len) { + return CRYPT_INVALID_ARG; + } + +#ifdef LTC_FAST + if (pmac->block_len % sizeof(LTC_FAST_TYPE)) { + return CRYPT_INVALID_ARG; + } +#endif + + + /* schedule the key */ + if ((err = cipher_descriptor[cipher].setup(key, keylen, 0, &pmac->key)) != CRYPT_OK) { + return err; + } + + /* allocate L */ + L = XMALLOC(pmac->block_len); + if (L == NULL) { + return CRYPT_MEM; + } + + /* find L = E[0] */ + zeromem(L, pmac->block_len); + cipher_descriptor[cipher].ecb_encrypt(L, L, &pmac->key); + + /* find Ls[i] = L << i for i == 0..31 */ + XMEMCPY(pmac->Ls[0], L, pmac->block_len); + for (x = 1; x < 32; x++) { + m = pmac->Ls[x-1][0] >> 7; + for (y = 0; y < pmac->block_len-1; y++) { + pmac->Ls[x][y] = ((pmac->Ls[x-1][y] << 1) | (pmac->Ls[x-1][y+1] >> 7)) & 255; + } + pmac->Ls[x][pmac->block_len-1] = (pmac->Ls[x-1][pmac->block_len-1] << 1) & 255; + + if (m == 1) { + for (y = 0; y < pmac->block_len; y++) { + pmac->Ls[x][y] ^= polys[poly].poly_mul[y]; + } + } + } + + /* find Lr = L / x */ + m = L[pmac->block_len-1] & 1; + + /* shift right */ + for (x = pmac->block_len - 1; x > 0; x--) { + pmac->Lr[x] = ((L[x] >> 1) | (L[x-1] << 7)) & 255; + } + pmac->Lr[0] = L[0] >> 1; + + if (m == 1) { + for (x = 0; x < pmac->block_len; x++) { + pmac->Lr[x] ^= polys[poly].poly_div[x]; + } + } + + /* zero buffer, counters, etc... */ + pmac->block_index = 1; + pmac->cipher_idx = cipher; + pmac->buflen = 0; + zeromem(pmac->block, sizeof(pmac->block)); + zeromem(pmac->Li, sizeof(pmac->Li)); + zeromem(pmac->checksum, sizeof(pmac->checksum)); + +#ifdef LTC_CLEAN_STACK + zeromem(L, pmac->block_len); +#endif + + XFREE(L); + + return CRYPT_OK; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_init.c,v $ */ +/* $Revision: 1.4 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_memory.c b/src/mac/pmac/pmac_memory.c new file mode 100644 index 0000000..fcdef99 --- /dev/null +++ b/src/mac/pmac/pmac_memory.c @@ -0,0 +1,74 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_memory.c + PMAC implementation, process a block of memory, by Tom St Denis +*/ + +#ifdef PMAC + +/** + PMAC a block of memory + @param cipher The index of the cipher desired + @param key The secret key + @param keylen The length of the secret key (octets) + @param in The data you wish to send through PMAC + @param inlen The length of data you wish to send through PMAC (octets) + @param out [out] Destination for the authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag + @return CRYPT_OK if successful +*/ +int pmac_memory(int cipher, + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen) +{ + int err; + pmac_state *pmac; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for pmac state */ + pmac = XMALLOC(sizeof(pmac_state)); + if (pmac == NULL) { + return CRYPT_MEM; + } + + if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = pmac_process(pmac, in, inlen)) != CRYPT_OK) { + goto LBL_ERR; + } + if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } + + err = CRYPT_OK; +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(pmac, sizeof(pmac_state)); +#endif + + XFREE(pmac); + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_memory.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_memory_multi.c b/src/mac/pmac/pmac_memory_multi.c new file mode 100644 index 0000000..2cc8572 --- /dev/null +++ b/src/mac/pmac/pmac_memory_multi.c @@ -0,0 +1,89 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" +#include <stdarg.h> + +/** + @file pmac_memory_multi.c + PMAC implementation, process multiple blocks of memory, by Tom St Denis +*/ + +#ifdef PMAC + +/** + PMAC multiple blocks of memory + @param cipher The index of the cipher desired + @param key The secret key + @param keylen The length of the secret key (octets) + @param out [out] Destination for the authentication tag + @param outlen [in/out] The max size and resulting size of the authentication tag + @param in The data you wish to send through PMAC + @param inlen The length of data you wish to send through PMAC (octets) + @param ... tuples of (data,len) pairs to PMAC, terminated with a (NULL,x) (x=don't care) + @return CRYPT_OK if successful +*/ +int pmac_memory_multi(int cipher, + const unsigned char *key, unsigned long keylen, + unsigned char *out, unsigned long *outlen, + const unsigned char *in, unsigned long inlen, ...) +{ + int err; + pmac_state *pmac; + va_list args; + const unsigned char *curptr; + unsigned long curlen; + + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(in != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + /* allocate ram for pmac state */ + pmac = XMALLOC(sizeof(pmac_state)); + if (pmac == NULL) { + return CRYPT_MEM; + } + + if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) { + goto LBL_ERR; + } + va_start(args, inlen); + curptr = in; + curlen = inlen; + for (;;) { + /* process buf */ + if ((err = pmac_process(pmac, curptr, curlen)) != CRYPT_OK) { + goto LBL_ERR; + } + /* step to next */ + curptr = va_arg(args, const unsigned char*); + if (curptr == NULL) { + break; + } + curlen = va_arg(args, unsigned long); + } + if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) { + goto LBL_ERR; + } +LBL_ERR: +#ifdef LTC_CLEAN_STACK + zeromem(pmac, sizeof(pmac_state)); +#endif + XFREE(pmac); + va_end(args); + return err; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_memory_multi.c,v $ */ +/* $Revision: 1.4 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_ntz.c b/src/mac/pmac/pmac_ntz.c new file mode 100644 index 0000000..7ec4550 --- /dev/null +++ b/src/mac/pmac/pmac_ntz.c @@ -0,0 +1,39 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_ntz.c + PMAC implementation, internal function, by Tom St Denis +*/ + +#ifdef PMAC + +/** + Internal PMAC function +*/ +int pmac_ntz(unsigned long x) +{ + int c; + x &= 0xFFFFFFFFUL; + c = 0; + while ((x & 1) == 0) { + ++c; + x >>= 1; + } + return c; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_ntz.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_process.c b/src/mac/pmac/pmac_process.c new file mode 100644 index 0000000..9ebd44e --- /dev/null +++ b/src/mac/pmac/pmac_process.c @@ -0,0 +1,96 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_process.c + PMAC implementation, process data, by Tom St Denis +*/ + + +#ifdef PMAC + +/** + Process data in a PMAC stream + @param pmac The PMAC state + @param in The data to send through PMAC + @param inlen The length of the data to send through PMAC + @return CRYPT_OK if successful +*/ +int pmac_process(pmac_state *pmac, const unsigned char *in, unsigned long inlen) +{ + int err, n; + unsigned long x; + unsigned char Z[MAXBLOCKSIZE]; + + LTC_ARGCHK(pmac != NULL); + LTC_ARGCHK(in != NULL); + if ((err = cipher_is_valid(pmac->cipher_idx)) != CRYPT_OK) { + return err; + } + + if ((pmac->buflen > (int)sizeof(pmac->block)) || (pmac->buflen < 0) || + (pmac->block_len > (int)sizeof(pmac->block)) || (pmac->buflen > pmac->block_len)) { + return CRYPT_INVALID_ARG; + } + +#ifdef LTC_FAST + if (pmac->buflen == 0 && inlen > 16) { + unsigned long y; + for (x = 0; x < (inlen - 16); x += 16) { + pmac_shift_xor(pmac); + for (y = 0; y < 16; y += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)(&Z[y])) = *((LTC_FAST_TYPE*)(&in[y])) ^ *((LTC_FAST_TYPE*)(&pmac->Li[y])); + } + cipher_descriptor[pmac->cipher_idx].ecb_encrypt(Z, Z, &pmac->key); + for (y = 0; y < 16; y += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)(&pmac->checksum[y])) ^= *((LTC_FAST_TYPE*)(&Z[y])); + } + in += 16; + } + inlen -= x; + } +#endif + + while (inlen != 0) { + /* ok if the block is full we xor in prev, encrypt and replace prev */ + if (pmac->buflen == pmac->block_len) { + pmac_shift_xor(pmac); + for (x = 0; x < (unsigned long)pmac->block_len; x++) { + Z[x] = pmac->Li[x] ^ pmac->block[x]; + } + cipher_descriptor[pmac->cipher_idx].ecb_encrypt(Z, Z, &pmac->key); + for (x = 0; x < (unsigned long)pmac->block_len; x++) { + pmac->checksum[x] ^= Z[x]; + } + pmac->buflen = 0; + } + + /* add bytes */ + n = MIN(inlen, (unsigned long)(pmac->block_len - pmac->buflen)); + XMEMCPY(pmac->block + pmac->buflen, in, n); + pmac->buflen += n; + inlen -= n; + in += n; + } + +#ifdef LTC_CLEAN_STACK + zeromem(Z, sizeof(Z)); +#endif + + return CRYPT_OK; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_process.c,v $ */ +/* $Revision: 1.5 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_shift_xor.c b/src/mac/pmac/pmac_shift_xor.c new file mode 100644 index 0000000..f24c22b --- /dev/null +++ b/src/mac/pmac/pmac_shift_xor.c @@ -0,0 +1,44 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_shift_xor.c + PMAC implementation, internal function, by Tom St Denis +*/ + +#ifdef PMAC + +/** + Internal function. Performs the state update (adding correct multiple) + @param pmac The PMAC state. +*/ +void pmac_shift_xor(pmac_state *pmac) +{ + int x, y; + y = pmac_ntz(pmac->block_index++); +#ifdef LTC_FAST + for (x = 0; x < pmac->block_len; x += sizeof(LTC_FAST_TYPE)) { + *((LTC_FAST_TYPE*)((unsigned char *)pmac->Li + x)) ^= + *((LTC_FAST_TYPE*)((unsigned char *)pmac->Ls[y] + x)); + } +#else + for (x = 0; x < pmac->block_len; x++) { + pmac->Li[x] ^= pmac->Ls[y][x]; + } +#endif +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_shift_xor.c,v $ */ +/* $Revision: 1.4 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ diff --git a/src/mac/pmac/pmac_test.c b/src/mac/pmac/pmac_test.c new file mode 100644 index 0000000..6d88703 --- /dev/null +++ b/src/mac/pmac/pmac_test.c @@ -0,0 +1,165 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_test.c + PMAC implementation, self-test, by Tom St Denis +*/ + + +#ifdef PMAC + +/** + Test the OMAC implementation + @return CRYPT_OK if successful, CRYPT_NOP if testing has been disabled +*/ +int pmac_test(void) +{ +#if !defined(LTC_TEST) + return CRYPT_NOP; +#else + static const struct { + int msglen; + unsigned char key[16], msg[34], tag[16]; + } tests[] = { + + /* PMAC-AES-128-0B */ +{ + 0, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00 }, + /* tag */ + { 0x43, 0x99, 0x57, 0x2c, 0xd6, 0xea, 0x53, 0x41, + 0xb8, 0xd3, 0x58, 0x76, 0xa7, 0x09, 0x8a, 0xf7 } +}, + + /* PMAC-AES-128-3B */ +{ + 3, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00, 0x01, 0x02 }, + /* tag */ + { 0x25, 0x6b, 0xa5, 0x19, 0x3c, 0x1b, 0x99, 0x1b, + 0x4d, 0xf0, 0xc5, 0x1f, 0x38, 0x8a, 0x9e, 0x27 } +}, + + /* PMAC-AES-128-16B */ +{ + 16, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* tag */ + { 0xeb, 0xbd, 0x82, 0x2f, 0xa4, 0x58, 0xda, 0xf6, + 0xdf, 0xda, 0xd7, 0xc2, 0x7d, 0xa7, 0x63, 0x38 } +}, + + /* PMAC-AES-128-20B */ +{ + 20, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13 }, + /* tag */ + { 0x04, 0x12, 0xca, 0x15, 0x0b, 0xbf, 0x79, 0x05, + 0x8d, 0x8c, 0x75, 0xa5, 0x8c, 0x99, 0x3f, 0x55 } +}, + + /* PMAC-AES-128-32B */ +{ + 32, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }, + /* tag */ + { 0xe9, 0x7a, 0xc0, 0x4e, 0x9e, 0x5e, 0x33, 0x99, + 0xce, 0x53, 0x55, 0xcd, 0x74, 0x07, 0xbc, 0x75 } +}, + + /* PMAC-AES-128-34B */ +{ + 34, + /* key */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + /* msg */ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, + 0x20, 0x21 }, + /* tag */ + { 0x5c, 0xba, 0x7d, 0x5e, 0xb2, 0x4f, 0x7c, 0x86, + 0xcc, 0xc5, 0x46, 0x04, 0xe5, 0x3d, 0x55, 0x12 } +} + +}; + int err, x, idx; + unsigned long len; + unsigned char outtag[MAXBLOCKSIZE]; + + /* AES can be under rijndael or aes... try to find it */ + if ((idx = find_cipher("aes")) == -1) { + if ((idx = find_cipher("rijndael")) == -1) { + return CRYPT_NOP; + } + } + + for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) { + len = sizeof(outtag); + if ((err = pmac_memory(idx, tests[x].key, 16, tests[x].msg, tests[x].msglen, outtag, &len)) != CRYPT_OK) { + return err; + } + + if (memcmp(outtag, tests[x].tag, len)) { +#if 0 + unsigned long y; + printf("\nTAG:\n"); + for (y = 0; y < len; ) { + printf("0x%02x", outtag[y]); + if (y < len-1) printf(", "); + if (!(++y % 8)) printf("\n"); + } +#endif + return CRYPT_FAIL_TESTVECTOR; + } + } + return CRYPT_OK; +#endif /* LTC_TEST */ +} + +#endif /* PMAC_MODE */ + + + + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_test.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ |