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/* LTC_PKCS Header Info */
/* ===> LTC_PKCS #1 -- RSA Cryptography <=== */
#ifdef LTC_PKCS_1
struct algo_properties_st;
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(const struct algo_properties_st *hash,
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,
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,
const struct algo_properties_st *hash,
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,
const struct algo_properties_st *hash,
unsigned char *out, unsigned long *outlen, int *res);
int pkcs_1_pss_encode(const unsigned char *msghash, unsigned long msghashlen,
unsigned long saltlen,
const struct algo_properties_st *hash,
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,
const struct algo_properties_st *hash,
unsigned long modulus_bitlen, int *res);
#endif /* LTC_PKCS_1 */
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