319 lines
7.3 KiB
C
Executable File
319 lines
7.3 KiB
C
Executable File
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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*/
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#include "tomcrypt.h"
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/**
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@file crypt_sizes.c
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Make various struct sizes available to dynamic languages
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like Python - Larry Bugbee, February 2013
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LB - Dec 2013 - revised to include compiler define options
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*/
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typedef struct {
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const char *name;
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const unsigned int size;
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} crypt_size;
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#define _SZ_STRINGIFY_S(s) { #s, sizeof(struct s) }
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#define _SZ_STRINGIFY_T(s) { #s, sizeof(s) }
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static const crypt_size _crypt_sizes[] = {
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/* hash state sizes */
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_SZ_STRINGIFY_S(ltc_hash_descriptor),
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_SZ_STRINGIFY_T(hash_state),
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#ifdef LTC_SHA256
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_SZ_STRINGIFY_S(sha256_state),
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#endif
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#ifdef LTC_SHA512
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_SZ_STRINGIFY_S(sha512_state),
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#endif
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#ifdef LTC_WHIRLPOOL
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_SZ_STRINGIFY_S(whirlpool_state),
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#endif
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#ifdef LTC_MD2
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_SZ_STRINGIFY_S(md2_state),
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#endif
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#ifdef LTC_MD4
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_SZ_STRINGIFY_S(md4_state),
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#endif
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#ifdef LTC_MD5
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_SZ_STRINGIFY_S(md5_state),
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#endif
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#ifdef LTC_RIPEMD128
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_SZ_STRINGIFY_S(rmd128_state),
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#endif
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#ifdef LTC_RIPEMD160
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_SZ_STRINGIFY_S(rmd160_state),
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#endif
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#ifdef LTC_RIPEMD256
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_SZ_STRINGIFY_S(rmd256_state),
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#endif
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#ifdef LTC_RIPEMD320
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_SZ_STRINGIFY_S(rmd320_state),
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#endif
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#ifdef LTC_SHA1
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_SZ_STRINGIFY_S(sha1_state),
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#endif
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#ifdef LTC_TIGER
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_SZ_STRINGIFY_S(tiger_state),
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#endif
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#ifdef LTC_CHC_HASH
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_SZ_STRINGIFY_S(chc_state),
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#endif
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/* block cipher key sizes */
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_SZ_STRINGIFY_S(ltc_cipher_descriptor),
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_SZ_STRINGIFY_T(symmetric_key),
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#ifdef LTC_ANUBIS
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_SZ_STRINGIFY_S(anubis_key),
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#endif
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#ifdef LTC_CAMELLIA
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_SZ_STRINGIFY_S(camellia_key),
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#endif
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#ifdef LTC_BLOWFISH
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_SZ_STRINGIFY_S(blowfish_key),
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#endif
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#ifdef LTC_CAST5
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_SZ_STRINGIFY_S(cast5_key),
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#endif
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#ifdef LTC_DES
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_SZ_STRINGIFY_S(des_key),
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_SZ_STRINGIFY_S(des3_key),
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#endif
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#ifdef LTC_KASUMI
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_SZ_STRINGIFY_S(kasumi_key),
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#endif
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#ifdef LTC_KHAZAD
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_SZ_STRINGIFY_S(khazad_key),
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#endif
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#ifdef LTC_KSEED
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_SZ_STRINGIFY_S(kseed_key),
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#endif
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#ifdef LTC_MULTI2
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_SZ_STRINGIFY_S(multi2_key),
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#endif
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#ifdef LTC_NOEKEON
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_SZ_STRINGIFY_S(noekeon_key),
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#endif
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#ifdef LTC_RC2
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_SZ_STRINGIFY_S(rc2_key),
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#endif
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#ifdef LTC_RC5
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_SZ_STRINGIFY_S(rc5_key),
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#endif
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#ifdef LTC_RC6
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_SZ_STRINGIFY_S(rc6_key),
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#endif
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#ifdef LTC_SKIPJACK
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_SZ_STRINGIFY_S(skipjack_key),
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#endif
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#ifdef LTC_XTEA
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_SZ_STRINGIFY_S(xtea_key),
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#endif
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#ifdef LTC_RIJNDAEL
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_SZ_STRINGIFY_S(rijndael_key),
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#endif
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#ifdef LTC_SAFER
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_SZ_STRINGIFY_S(safer_key),
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#endif
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#ifdef LTC_SAFERP
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_SZ_STRINGIFY_S(saferp_key),
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#endif
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#ifdef LTC_TWOFISH
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_SZ_STRINGIFY_S(twofish_key),
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#endif
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/* mode sizes */
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#ifdef LTC_CBC_MODE
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_SZ_STRINGIFY_T(symmetric_CBC),
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#endif
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#ifdef LTC_CFB_MODE
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_SZ_STRINGIFY_T(symmetric_CFB),
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#endif
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#ifdef LTC_CTR_MODE
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_SZ_STRINGIFY_T(symmetric_CTR),
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#endif
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#ifdef LTC_ECB_MODE
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_SZ_STRINGIFY_T(symmetric_ECB),
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#endif
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#ifdef LTC_F8_MODE
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_SZ_STRINGIFY_T(symmetric_F8),
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#endif
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#ifdef LTC_LRW_MODE
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_SZ_STRINGIFY_T(symmetric_LRW),
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#endif
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#ifdef LTC_OFB_MODE
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_SZ_STRINGIFY_T(symmetric_OFB),
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#endif
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/* MAC sizes -- no states for ccm, lrw */
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#ifdef LTC_F9_MODE
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_SZ_STRINGIFY_T(f9_state),
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#endif
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#ifdef LTC_HMAC
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_SZ_STRINGIFY_T(hmac_state),
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#endif
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#ifdef LTC_OMAC
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_SZ_STRINGIFY_T(omac_state),
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#endif
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#ifdef LTC_PELICAN
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_SZ_STRINGIFY_T(pelican_state),
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#endif
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#ifdef LTC_PMAC
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_SZ_STRINGIFY_T(pmac_state),
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#endif
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#ifdef LTC_XCBC
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_SZ_STRINGIFY_T(xcbc_state),
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#endif
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#ifdef LTC_OCB_MODE
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_SZ_STRINGIFY_T(ocb_state),
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#endif
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#ifdef LTC_OCB3_MODE
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_SZ_STRINGIFY_T(ocb3_state),
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#endif
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#ifdef LTC_GCM_MODE
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_SZ_STRINGIFY_T(gcm_state),
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#endif
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#ifdef LTC_EAX_MODE
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_SZ_STRINGIFY_T(eax_state),
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#endif
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#ifdef LTC_CCM_MODE
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/* not defined */
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#endif
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#ifdef LRW_MODE
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/* not defined */
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#endif
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/* asymmetric keys */
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#ifdef LTC_MRSA
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_SZ_STRINGIFY_T(rsa_key),
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#endif
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#ifdef LTC_MDSA
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_SZ_STRINGIFY_T(dsa_key),
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#endif
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#ifdef LTC_MDH
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_SZ_STRINGIFY_T(dh_key),
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#endif
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#ifdef LTC_MECC
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_SZ_STRINGIFY_T(ltc_ecc_set_type),
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_SZ_STRINGIFY_T(ecc_key),
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_SZ_STRINGIFY_T(ecc_point),
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#endif
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#ifdef LTC_MKAT
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_SZ_STRINGIFY_T(katja_key),
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#endif
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/* prng state sizes */
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_SZ_STRINGIFY_S(ltc_prng_descriptor),
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_SZ_STRINGIFY_T(prng_state),
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#ifdef LTC_FORTUNA
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_SZ_STRINGIFY_S(fortuna_prng),
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#endif
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#ifdef LTC_RC4
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_SZ_STRINGIFY_S(rc4_prng),
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#endif
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#ifdef LTC_SOBER128
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_SZ_STRINGIFY_S(sober128_prng),
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#endif
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#ifdef LTC_YARROW
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_SZ_STRINGIFY_S(yarrow_prng),
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#endif
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/* sprng has no state as it uses other potentially available sources */
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/* like /dev/random. See Developers Guide for more info. */
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#ifdef LTC_ADLER32
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_SZ_STRINGIFY_T(adler32_state),
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#endif
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#ifdef LTC_CRC32
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_SZ_STRINGIFY_T(crc32_state),
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#endif
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};
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/* crypt_get_size()
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* sizeout will be the size (bytes) of the named struct or union
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* return -1 if named item not found
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*/
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int crypt_get_size(const char* namein, unsigned int *sizeout) {
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int i;
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int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
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for (i=0; i<count; i++) {
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if (XSTRCMP(_crypt_sizes[i].name, namein) == 0) {
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*sizeout = _crypt_sizes[i].size;
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return 0;
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}
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}
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return -1;
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}
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/* crypt_list_all_sizes()
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* if names_list is NULL, names_list_size will be the minimum
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* size needed to receive the complete names_list
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* if names_list is NOT NULL, names_list must be the addr with
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* sufficient memory allocated into which the names_list
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* is to be written. Also, the value in names_list_size
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* sets the upper bound of the number of characters to be
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* written.
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* a -1 return value signifies insufficient space made available
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*/
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int crypt_list_all_sizes(char *names_list, unsigned int *names_list_size) {
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int i;
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unsigned int total_len = 0;
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char number[32], *ptr;
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int number_len;
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int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
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/* calculate amount of memory required for the list */
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for (i=0; i<count; i++) {
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total_len += (unsigned int)strlen(_crypt_sizes[i].name) + 1;
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/* the above +1 is for the commas */
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number_len = snprintf(number, sizeof(number), "%u", _crypt_sizes[i].size);
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if ((number_len < 0) ||
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((unsigned int)number_len >= sizeof(number)))
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return -1;
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total_len += (unsigned int)strlen(number) + 1;
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/* this last +1 is for newlines (and ending NULL) */
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}
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if (names_list == NULL) {
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*names_list_size = total_len;
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} else {
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if (total_len > *names_list_size) {
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return -1;
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}
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/* build the names list */
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ptr = names_list;
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for (i=0; i<count; i++) {
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strcpy(ptr, _crypt_sizes[i].name);
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ptr += strlen(_crypt_sizes[i].name);
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strcpy(ptr, ",");
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ptr += 1;
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number_len = snprintf(number, sizeof(number), "%u", _crypt_sizes[i].size);
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strcpy(ptr, number);
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ptr += number_len;
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strcpy(ptr, "\n");
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ptr += 1;
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}
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/* to remove the trailing new-line */
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ptr -= 1;
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*ptr = 0;
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}
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return 0;
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}
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/* $Source$ */
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/* $Revision$ */
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/* $Date$ */
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