forked from Mirrorlandia_minetest/minetest
Remove references to SHA1 and SHA512 from SRP code
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@ -56,6 +56,8 @@
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//#define CSRP_USE_SHA1
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#define CSRP_USE_SHA256
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#define CSRP_MAX_HASH (SHA256_DIGEST_LENGTH)
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#define srp_dbg_data(data, datalen, prevtext) ;
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/*void srp_dbg_data(unsigned char * data, size_t datalen, char * prevtext)
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{
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@ -218,7 +220,7 @@ static NGConstant *new_ng(SRP_NGType ng_type, const char *n_hex, const char *g_h
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}
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typedef union {
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SHA_CTX sha;
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// SHA_CTX sha;
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SHA256_CTX sha256;
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// SHA512_CTX sha512;
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} HashCTX;
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@ -231,9 +233,9 @@ struct SRPVerifier {
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unsigned char *bytes_B;
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int authenticated;
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unsigned char M[SHA512_DIGEST_LENGTH];
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unsigned char H_AMK[SHA512_DIGEST_LENGTH];
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unsigned char session_key[SHA512_DIGEST_LENGTH];
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unsigned char M[CSRP_MAX_HASH];
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unsigned char H_AMK[CSRP_MAX_HASH];
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unsigned char session_key[CSRP_MAX_HASH];
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};
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struct SRPUser {
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@ -252,9 +254,9 @@ struct SRPUser {
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unsigned char *password;
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size_t password_len;
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unsigned char M[SHA512_DIGEST_LENGTH];
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unsigned char H_AMK[SHA512_DIGEST_LENGTH];
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unsigned char session_key[SHA512_DIGEST_LENGTH];
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unsigned char M[CSRP_MAX_HASH];
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unsigned char H_AMK[CSRP_MAX_HASH];
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unsigned char session_key[CSRP_MAX_HASH];
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};
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static int hash_init(SRP_HashAlgorithm alg, HashCTX *c)
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@ -395,7 +397,7 @@ inline static void mpz_subm(
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static SRP_Result H_nn(
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mpz_t result, SRP_HashAlgorithm alg, const mpz_t N, const mpz_t n1, const mpz_t n2)
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{
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unsigned char buff[SHA512_DIGEST_LENGTH];
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unsigned char buff[CSRP_MAX_HASH];
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size_t len_N = mpz_num_bytes(N);
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size_t len_n1 = mpz_num_bytes(n1);
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size_t len_n2 = mpz_num_bytes(n2);
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@ -418,7 +420,7 @@ static SRP_Result H_nn(
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static SRP_Result H_ns(mpz_t result, SRP_HashAlgorithm alg, const unsigned char *n,
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size_t len_n, const unsigned char *bytes, size_t len_bytes)
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{
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unsigned char buff[SHA512_DIGEST_LENGTH];
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unsigned char buff[CSRP_MAX_HASH];
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size_t nbytes = len_n + len_bytes;
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unsigned char *bin = (unsigned char *)srp_alloc(nbytes);
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if (!bin) return SRP_ERR;
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@ -434,7 +436,7 @@ static int calculate_x(mpz_t result, SRP_HashAlgorithm alg, const unsigned char
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size_t salt_len, const char *username, const unsigned char *password,
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size_t password_len)
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{
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unsigned char ucp_hash[SHA512_DIGEST_LENGTH];
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unsigned char ucp_hash[CSRP_MAX_HASH];
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HashCTX ctx;
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hash_init(alg, &ctx);
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@ -475,10 +477,10 @@ static SRP_Result calculate_M(SRP_HashAlgorithm alg, NGConstant *ng, unsigned ch
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const char *I, const unsigned char *s_bytes, size_t s_len, const mpz_t A,
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const mpz_t B, const unsigned char *K)
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{
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unsigned char H_N[SHA512_DIGEST_LENGTH];
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unsigned char H_g[SHA512_DIGEST_LENGTH];
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unsigned char H_I[SHA512_DIGEST_LENGTH];
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unsigned char H_xor[SHA512_DIGEST_LENGTH];
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unsigned char H_N[CSRP_MAX_HASH];
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unsigned char H_g[CSRP_MAX_HASH];
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unsigned char H_I[CSRP_MAX_HASH];
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unsigned char H_xor[CSRP_MAX_HASH];
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HashCTX ctx;
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size_t i = 0;
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size_t hash_len = hash_length(alg);
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@ -798,7 +800,7 @@ size_t srp_verifier_get_session_key_length(struct SRPVerifier *ver)
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return hash_length(ver->hash_alg);
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}
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/* user_M must be exactly SHA512_DIGEST_LENGTH bytes in size */
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/* user_M must be exactly CSRP_MAX_HASH bytes in size */
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void srp_verifier_verify_session(
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struct SRPVerifier *ver, const unsigned char *user_M, unsigned char **bytes_HAMK)
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{
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@ -944,7 +946,7 @@ error_and_exit:
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return SRP_ERR;
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}
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/* Output: bytes_M. Buffer length is SHA512_DIGEST_LENGTH */
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/* Output: bytes_M. Buffer length is CSRP_MAX_HASH */
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void srp_user_process_challenge(struct SRPUser *usr,
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const unsigned char *bytes_s, size_t len_s,
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const unsigned char *bytes_B, size_t len_B,
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