tomcrypt_pkcs.h

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/* LTC_PKCS Header Info */

/* ===> LTC_PKCS #1 -- RSA Cryptography <=== */
#ifdef LTC_PKCS_1

enum ltc_pkcs_1_v1_5_blocks
{
 LTC_LTC_PKCS_1_EMSA = 1, /* Block type 1 (LTC_PKCS #1 v1.5 signature padding) */
 LTC_LTC_PKCS_1_EME = 2 /* Block type 2 (LTC_PKCS #1 v1.5 encryption padding) */
};

enum ltc_pkcs_1_paddings
{
 LTC_LTC_PKCS_1_V1_5 = 1, /* LTC_PKCS #1 v1.5 padding (\sa ltc_pkcs_1_v1_5_blocks) */
 LTC_LTC_PKCS_1_OAEP = 2, /* LTC_PKCS #1 v2.0 encryption padding */
 LTC_LTC_PKCS_1_PSS = 3 /* LTC_PKCS #1 v2.1 signature padding */
};

int pkcs_1_mgf1( int hash_idx,
 const unsigned char *seed, unsigned long seedlen,
 unsigned char *mask, unsigned long masklen);

int pkcs_1_i2osp(void *n, unsigned long modulus_len, unsigned char *out);
int pkcs_1_os2ip(void *n, unsigned char *in, unsigned long inlen);

/* *** v1.5 padding */
int pkcs_1_v1_5_encode(const unsigned char *msg, 
 unsigned long msglen,
 int block_type,
 unsigned long modulus_bitlen,
 prng_state *prng, 
 int prng_idx,
 unsigned char *out, 
 unsigned long *outlen);

int pkcs_1_v1_5_decode(const unsigned char *msg, 
 unsigned long msglen,
 int block_type,
 unsigned long modulus_bitlen,
 unsigned char *out, 
 unsigned long *outlen,
 int *is_valid);

/* *** v2.1 padding */
int pkcs_1_oaep_encode(const unsigned char *msg, unsigned long msglen,
 const unsigned char *lparam, unsigned long lparamlen,
 unsigned long modulus_bitlen, prng_state *prng,
 int prng_idx, int hash_idx,
 unsigned char *out, unsigned long *outlen);

int pkcs_1_oaep_decode(const unsigned char *msg, unsigned long msglen,
 const unsigned char *lparam, unsigned long lparamlen,
 unsigned long modulus_bitlen, int hash_idx,
 unsigned char *out, unsigned long *outlen,
 int *res);

int pkcs_1_pss_encode(const unsigned char *msghash, unsigned long msghashlen,
 unsigned long saltlen, prng_state *prng, 
 int prng_idx, int hash_idx,
 unsigned long modulus_bitlen,
 unsigned char *out, unsigned long *outlen);

int pkcs_1_pss_decode(const unsigned char *msghash, unsigned long msghashlen,
 const unsigned char *sig, unsigned long siglen,
 unsigned long saltlen, int hash_idx,
 unsigned long modulus_bitlen, int *res);

#endif /* LTC_PKCS_1 */

/* ===> LTC_PKCS #5 -- Password Based Cryptography <=== */
#ifdef LTC_PKCS_5

/* Algorithm #1 (old) */
int pkcs_5_alg1(const unsigned char *password, unsigned long password_len, 
 const unsigned char *salt, 
 int iteration_count, int hash_idx,
 unsigned char *out, unsigned long *outlen);

/* Algorithm #2 (new) */
int pkcs_5_alg2(const unsigned char *password, unsigned long password_len, 
 const unsigned char *salt, unsigned long salt_len,
 int iteration_count, int hash_idx,
 unsigned char *out, unsigned long *outlen);

#endif /* LTC_PKCS_5 */

/* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_pkcs.h,v $ */
/* $Revision: 1.8 $ */
/* $Date: 2007/05/12 14:32:35 $ */