100 lines
4.3 KiB
C
100 lines
4.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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/* PKCS Header Info */
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/* ===> PKCS #1 -- RSA Cryptography <=== */
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#ifdef LTC_PKCS_1
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enum ltc_pkcs_1_v1_5_blocks
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{
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LTC_PKCS_1_EMSA = 1, /* Block type 1 (PKCS #1 v1.5 signature padding) */
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LTC_PKCS_1_EME = 2 /* Block type 2 (PKCS #1 v1.5 encryption padding) */
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};
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enum ltc_pkcs_1_paddings
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{
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LTC_PKCS_1_V1_5 = 1, /* PKCS #1 v1.5 padding (\sa ltc_pkcs_1_v1_5_blocks) */
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LTC_PKCS_1_OAEP = 2, /* PKCS #1 v2.0 encryption padding */
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LTC_PKCS_1_PSS = 3, /* PKCS #1 v2.1 signature padding */
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LTC_PKCS_1_V1_5_NA1 = 4 /* PKCS #1 v1.5 padding - No ASN.1 (\sa ltc_pkcs_1_v1_5_blocks) */
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};
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int pkcs_1_mgf1( int hash_idx,
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const unsigned char *seed, unsigned long seedlen,
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unsigned char *mask, unsigned long masklen);
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int pkcs_1_i2osp(void *n, unsigned long modulus_len, unsigned char *out);
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int pkcs_1_os2ip(void *n, unsigned char *in, unsigned long inlen);
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/* *** v1.5 padding */
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int pkcs_1_v1_5_encode(const unsigned char *msg,
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unsigned long msglen,
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int block_type,
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unsigned long modulus_bitlen,
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prng_state *prng,
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int prng_idx,
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unsigned char *out,
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unsigned long *outlen);
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int pkcs_1_v1_5_decode(const unsigned char *msg,
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unsigned long msglen,
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int block_type,
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unsigned long modulus_bitlen,
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unsigned char *out,
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unsigned long *outlen,
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int *is_valid);
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/* *** v2.1 padding */
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int pkcs_1_oaep_encode(const unsigned char *msg, unsigned long msglen,
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const unsigned char *lparam, unsigned long lparamlen,
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unsigned long modulus_bitlen, prng_state *prng,
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int prng_idx, int hash_idx,
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unsigned char *out, unsigned long *outlen);
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int pkcs_1_oaep_decode(const unsigned char *msg, unsigned long msglen,
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const unsigned char *lparam, unsigned long lparamlen,
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unsigned long modulus_bitlen, int hash_idx,
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unsigned char *out, unsigned long *outlen,
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int *res);
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int pkcs_1_pss_encode(const unsigned char *msghash, unsigned long msghashlen,
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unsigned long saltlen, prng_state *prng,
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int prng_idx, int hash_idx,
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unsigned long modulus_bitlen,
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unsigned char *out, unsigned long *outlen);
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int pkcs_1_pss_decode(const unsigned char *msghash, unsigned long msghashlen,
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const unsigned char *sig, unsigned long siglen,
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unsigned long saltlen, int hash_idx,
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unsigned long modulus_bitlen, int *res);
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#endif /* LTC_PKCS_1 */
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/* ===> PKCS #5 -- Password Based Cryptography <=== */
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#ifdef LTC_PKCS_5
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/* Algorithm #1 (PBKDF1) */
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int pkcs_5_alg1(const unsigned char *password, unsigned long password_len,
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const unsigned char *salt,
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int iteration_count, int hash_idx,
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unsigned char *out, unsigned long *outlen);
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/* Algorithm #1 (PBKDF1) - OpenSSL-compatible variant for arbitrarily-long keys.
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Compatible with EVP_BytesToKey() */
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int pkcs_5_alg1_openssl(const unsigned char *password,
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unsigned long password_len,
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const unsigned char *salt,
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int iteration_count, int hash_idx,
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unsigned char *out, unsigned long *outlen);
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/* Algorithm #2 (PBKDF2) */
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int pkcs_5_alg2(const unsigned char *password, unsigned long password_len,
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const unsigned char *salt, unsigned long salt_len,
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int iteration_count, int hash_idx,
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unsigned char *out, unsigned long *outlen);
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int pkcs_5_test (void);
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#endif /* LTC_PKCS_5 */
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