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/* 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.
*/
#include "tomcrypt.h"
/**
@file crypt_sizes.c
Make various struct sizes available to dynamic languages
like Python - Larry Bugbee, February 2013
LB - Dec 2013 - revised to include compiler define options
*/
typedef struct {
const char *name;
const unsigned int size;
} crypt_size;
#define _SZ_STRINGIFY_S(s) { #s, sizeof(struct s) }
#define _SZ_STRINGIFY_T(s) { #s, sizeof(s) }
static const crypt_size _crypt_sizes[] = {
/* hash state sizes */
_SZ_STRINGIFY_S(ltc_hash_descriptor),
_SZ_STRINGIFY_T(hash_state),
#ifdef LTC_CHC_HASH
_SZ_STRINGIFY_S(chc_state),
#endif
#ifdef LTC_WHIRLPOOL
_SZ_STRINGIFY_S(whirlpool_state),
#endif
#ifdef LTC_SHA3
_SZ_STRINGIFY_S(sha3_state),
#endif
#ifdef LTC_SHA512
_SZ_STRINGIFY_S(sha512_state),
#endif
#ifdef LTC_SHA256
_SZ_STRINGIFY_S(sha256_state),
#endif
#ifdef LTC_SHA1
_SZ_STRINGIFY_S(sha1_state),
#endif
#ifdef LTC_MD5
_SZ_STRINGIFY_S(md5_state),
#endif
#ifdef LTC_MD4
_SZ_STRINGIFY_S(md4_state),
#endif
#ifdef LTC_MD2
_SZ_STRINGIFY_S(md2_state),
#endif
#ifdef LTC_TIGER
_SZ_STRINGIFY_S(tiger_state),
#endif
#ifdef LTC_RIPEMD128
_SZ_STRINGIFY_S(rmd128_state),
#endif
#ifdef LTC_RIPEMD160
_SZ_STRINGIFY_S(rmd160_state),
#endif
#ifdef LTC_RIPEMD256
_SZ_STRINGIFY_S(rmd256_state),
#endif
#ifdef LTC_RIPEMD320
_SZ_STRINGIFY_S(rmd320_state),
#endif
#ifdef LTC_BLAKE2S
_SZ_STRINGIFY_S(blake2s_state),
#endif
#ifdef LTC_BLAKE2B
_SZ_STRINGIFY_S(blake2b_state),
#endif
/* block cipher key sizes */
_SZ_STRINGIFY_S(ltc_cipher_descriptor),
_SZ_STRINGIFY_T(symmetric_key),
#ifdef LTC_ANUBIS
_SZ_STRINGIFY_S(anubis_key),
#endif
#ifdef LTC_CAMELLIA
_SZ_STRINGIFY_S(camellia_key),
#endif
#ifdef LTC_BLOWFISH
_SZ_STRINGIFY_S(blowfish_key),
#endif
#ifdef LTC_CAST5
_SZ_STRINGIFY_S(cast5_key),
#endif
#ifdef LTC_DES
_SZ_STRINGIFY_S(des_key),
_SZ_STRINGIFY_S(des3_key),
#endif
#ifdef LTC_KASUMI
_SZ_STRINGIFY_S(kasumi_key),
#endif
#ifdef LTC_KHAZAD
_SZ_STRINGIFY_S(khazad_key),
#endif
#ifdef LTC_KSEED
_SZ_STRINGIFY_S(kseed_key),
#endif
#ifdef LTC_MULTI2
_SZ_STRINGIFY_S(multi2_key),
#endif
#ifdef LTC_NOEKEON
_SZ_STRINGIFY_S(noekeon_key),
#endif
#ifdef LTC_RC2
_SZ_STRINGIFY_S(rc2_key),
#endif
#ifdef LTC_RC5
_SZ_STRINGIFY_S(rc5_key),
#endif
#ifdef LTC_RC6
_SZ_STRINGIFY_S(rc6_key),
#endif
#ifdef LTC_SKIPJACK
_SZ_STRINGIFY_S(skipjack_key),
#endif
#ifdef LTC_XTEA
_SZ_STRINGIFY_S(xtea_key),
#endif
#ifdef LTC_RIJNDAEL
_SZ_STRINGIFY_S(rijndael_key),
#endif
#ifdef LTC_SAFER
_SZ_STRINGIFY_S(safer_key),
#endif
#ifdef LTC_SAFERP
_SZ_STRINGIFY_S(saferp_key),
#endif
#ifdef LTC_TWOFISH
_SZ_STRINGIFY_S(twofish_key),
#endif
/* mode sizes */
#ifdef LTC_ECB_MODE
_SZ_STRINGIFY_T(symmetric_ECB),
#endif
#ifdef LTC_CFB_MODE
_SZ_STRINGIFY_T(symmetric_CFB),
#endif
#ifdef LTC_OFB_MODE
_SZ_STRINGIFY_T(symmetric_OFB),
#endif
#ifdef LTC_CBC_MODE
_SZ_STRINGIFY_T(symmetric_CBC),
#endif
#ifdef LTC_CTR_MODE
_SZ_STRINGIFY_T(symmetric_CTR),
#endif
#ifdef LTC_LRW_MODE
_SZ_STRINGIFY_T(symmetric_LRW),
#endif
#ifdef LTC_F8_MODE
_SZ_STRINGIFY_T(symmetric_F8),
#endif
#ifdef LTC_XTS_MODE
_SZ_STRINGIFY_T(symmetric_xts),
#endif
/* stream cipher sizes */
#ifdef LTC_CHACHA
_SZ_STRINGIFY_T(chacha_state),
#endif
#ifdef LTC_RC4_STREAM
_SZ_STRINGIFY_T(rc4_state),
#endif
#ifdef LTC_SOBER128_STREAM
_SZ_STRINGIFY_T(sober128_state),
#endif
/* MAC sizes -- no states for ccm, lrw */
#ifdef LTC_HMAC
_SZ_STRINGIFY_T(hmac_state),
#endif
#ifdef LTC_OMAC
_SZ_STRINGIFY_T(omac_state),
#endif
#ifdef LTC_PMAC
_SZ_STRINGIFY_T(pmac_state),
#endif
#ifdef LTC_POLY1305
_SZ_STRINGIFY_T(poly1305_state),
#endif
#ifdef LTC_EAX_MODE
_SZ_STRINGIFY_T(eax_state),
#endif
#ifdef LTC_OCB_MODE
_SZ_STRINGIFY_T(ocb_state),
#endif
#ifdef LTC_OCB3_MODE
_SZ_STRINGIFY_T(ocb3_state),
#endif
#ifdef LTC_CCM_MODE
_SZ_STRINGIFY_T(ccm_state),
#endif
#ifdef LTC_GCM_MODE
_SZ_STRINGIFY_T(gcm_state),
#endif
#ifdef LTC_PELICAN
_SZ_STRINGIFY_T(pelican_state),
#endif
#ifdef LTC_XCBC
_SZ_STRINGIFY_T(xcbc_state),
#endif
#ifdef LTC_F9_MODE
_SZ_STRINGIFY_T(f9_state),
#endif
#ifdef LTC_CHACHA20POLY1305_MODE
_SZ_STRINGIFY_T(chacha20poly1305_state),
#endif
/* asymmetric keys */
#ifdef LTC_MRSA
_SZ_STRINGIFY_T(rsa_key),
#endif
#ifdef LTC_MDSA
_SZ_STRINGIFY_T(dsa_key),
#endif
#ifdef LTC_MDH
_SZ_STRINGIFY_T(dh_key),
#endif
#ifdef LTC_MECC
_SZ_STRINGIFY_T(ltc_ecc_set_type),
_SZ_STRINGIFY_T(ecc_point),
_SZ_STRINGIFY_T(ecc_key),
#endif
#ifdef LTC_MKAT
_SZ_STRINGIFY_T(katja_key),
#endif
/* DER handling */
#ifdef LTC_DER
_SZ_STRINGIFY_T(ltc_asn1_list), /* a list entry */
_SZ_STRINGIFY_T(ltc_utctime),
_SZ_STRINGIFY_T(ltc_generalizedtime),
#endif
/* prng state sizes */
_SZ_STRINGIFY_S(ltc_prng_descriptor),
_SZ_STRINGIFY_T(prng_state),
#ifdef LTC_FORTUNA
_SZ_STRINGIFY_S(fortuna_prng),
#endif
#ifdef LTC_CHACHA20_PRNG
_SZ_STRINGIFY_S(chacha20_prng),
#endif
#ifdef LTC_RC4
_SZ_STRINGIFY_S(rc4_prng),
#endif
#ifdef LTC_SOBER128
_SZ_STRINGIFY_S(sober128_prng),
#endif
#ifdef LTC_YARROW
_SZ_STRINGIFY_S(yarrow_prng),
#endif
/* sprng has no state as it uses other potentially available sources */
/* like /dev/random. See Developers Guide for more info. */
#ifdef LTC_ADLER32
_SZ_STRINGIFY_T(adler32_state),
#endif
#ifdef LTC_CRC32
_SZ_STRINGIFY_T(crc32_state),
#endif
_SZ_STRINGIFY_T(ltc_mp_digit),
_SZ_STRINGIFY_T(ltc_math_descriptor)
};
/* crypt_get_size()
* sizeout will be the size (bytes) of the named struct or union
* return -1 if named item not found
*/
int crypt_get_size(const char* namein, unsigned int *sizeout) {
int i;
int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
for (i=0; i<count; i++) {
if (XSTRCMP(_crypt_sizes[i].name, namein) == 0) {
*sizeout = _crypt_sizes[i].size;
return 0;
}
}
return -1;
}
/* crypt_list_all_sizes()
* if names_list is NULL, names_list_size will be the minimum
* size needed to receive the complete names_list
* if names_list is NOT NULL, names_list must be the addr with
* sufficient memory allocated into which the names_list
* is to be written. Also, the value in names_list_size
* sets the upper bound of the number of characters to be
* written.
* a -1 return value signifies insufficient space made available
*/
int crypt_list_all_sizes(char *names_list, unsigned int *names_list_size) {
int i;
unsigned int total_len = 0;
char *ptr;
int number_len;
int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
/* calculate amount of memory required for the list */
for (i=0; i<count; i++) {
number_len = snprintf(NULL, 0, "%s,%u\n", _crypt_sizes[i].name, _crypt_sizes[i].size);
if (number_len < 0)
return -1;
total_len += number_len;
/* this last +1 is for newlines (and ending NULL) */
}
if (names_list == NULL) {
*names_list_size = total_len;
} else {
if (total_len > *names_list_size) {
return -1;
}
/* build the names list */
ptr = names_list;
for (i=0; i<count; i++) {
number_len = snprintf(ptr, total_len, "%s,%u\n", _crypt_sizes[i].name, _crypt_sizes[i].size);
if (number_len < 0) return -1;
if ((unsigned int)number_len > total_len) return -1;
total_len -= number_len;
ptr += number_len;
}
/* to remove the trailing new-line */
ptr -= 1;
*ptr = 0;
}
return 0;
}
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */
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