summaryrefslogtreecommitdiffhomepage
path: root/libtomcrypt/src/mac/pmac
diff options
context:
space:
mode:
Diffstat (limited to 'libtomcrypt/src/mac/pmac')
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_done.c72
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_file.c84
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_init.c144
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_memory.c74
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_memory_multi.c89
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_ntz.c39
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_process.c96
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_shift_xor.c44
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_test.c165
9 files changed, 807 insertions, 0 deletions
diff --git a/libtomcrypt/src/mac/pmac/pmac_done.c b/libtomcrypt/src/mac/pmac/pmac_done.c
new file mode 100644
index 0000000..09c430c
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_file.c b/libtomcrypt/src/mac/pmac/pmac_file.c
new file mode 100644
index 0000000..1034c6f
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_init.c b/libtomcrypt/src/mac/pmac/pmac_init.c
new file mode 100644
index 0000000..5bd94a0
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_memory.c b/libtomcrypt/src/mac/pmac/pmac_memory.c
new file mode 100644
index 0000000..fcdef99
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_memory_multi.c b/libtomcrypt/src/mac/pmac/pmac_memory_multi.c
new file mode 100644
index 0000000..2cc8572
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_ntz.c b/libtomcrypt/src/mac/pmac/pmac_ntz.c
new file mode 100644
index 0000000..7ec4550
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_process.c b/libtomcrypt/src/mac/pmac/pmac_process.c
new file mode 100644
index 0000000..9ebd44e
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_shift_xor.c b/libtomcrypt/src/mac/pmac/pmac_shift_xor.c
new file mode 100644
index 0000000..f24c22b
--- /dev/null
+++ b/libtomcrypt/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/libtomcrypt/src/mac/pmac/pmac_test.c b/libtomcrypt/src/mac/pmac/pmac_test.c
new file mode 100644
index 0000000..6d88703
--- /dev/null
+++ b/libtomcrypt/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 $ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 20:57:49 +0000