Exemplos de update_hash_n em C++ (Cpp)

Exemplo n.º 1

Arquivo: srp.c Projeto: alexhancock/ObjectiveDDP

static void calculate_M( SRP_HashAlgorithm alg, NGConstant *ng, unsigned char * dest, const char * I, const BIGNUM * s,
                         const BIGNUM * A, const BIGNUM * B, const unsigned char * K )
{
    unsigned char H_N[ SHA256_DIGEST_LENGTH ];
    unsigned char H_g[ SHA256_DIGEST_LENGTH ];
    unsigned char H_I[ SHA256_DIGEST_LENGTH ];
    unsigned char H_xor[ SHA256_DIGEST_LENGTH ];
    HashCTX       ctx;
    int           i = 0;
    int           hash_len = hash_length(alg);
        
    hash_num( alg, ng->N, H_N );
    hash_num( alg, ng->g, H_g );
    
    hash(alg, (const unsigned char *)I, strlen(I), H_I);
    
    
    for (i=0; i < hash_len; i++ )
        H_xor[i] = H_N[i] ^ H_g[i];
    
    hash_init( alg, &ctx );
    
    hash_update( alg, &ctx, H_xor, hash_len );
    hash_update( alg, &ctx, H_I,   hash_len );
    update_hash_n( alg, &ctx, s );
    update_hash_n( alg, &ctx, A );
    update_hash_n( alg, &ctx, B );
    hash_update( alg, &ctx, K, hash_len );
    
    hash_final( alg, &ctx, dest );
}

Exemplo n.º 2

Arquivo: srp.cpp Projeto: ChunHungLiu/freeminer

static SRP_Result calculate_M(SRP_HashAlgorithm alg, NGConstant *ng, unsigned char *dest,
	const char *I, const unsigned char *s_bytes, size_t s_len, const mpz_t A,
	const mpz_t B, const unsigned char *K)
{
	unsigned char H_N[SHA512_DIGEST_LENGTH];
	unsigned char H_g[SHA512_DIGEST_LENGTH];
	unsigned char H_I[SHA512_DIGEST_LENGTH];
	unsigned char H_xor[SHA512_DIGEST_LENGTH];
	HashCTX ctx;
	size_t i = 0;
	size_t hash_len = hash_length(alg);

	if (!hash_num(alg, ng->N, H_N)) return SRP_ERR;
	if (!hash_num(alg, ng->g, H_g)) return SRP_ERR;

	hash(alg, (const unsigned char *)I, strlen(I), H_I);

	for (i = 0; i < hash_len; i++)
		H_xor[i] = H_N[i] ^ H_g[i];

	hash_init(alg, &ctx);

	hash_update(alg, &ctx, H_xor, hash_len);
	hash_update(alg, &ctx, H_I, hash_len);
	hash_update(alg, &ctx, s_bytes, s_len);
	if (!update_hash_n(alg, &ctx, A)) return SRP_ERR;
	if (!update_hash_n(alg, &ctx, B)) return SRP_ERR;
	hash_update(alg, &ctx, K, hash_len);

	hash_final(alg, &ctx, dest);
	return SRP_OK;
}

Exemplo n.º 3

Arquivo: srp.c Projeto: alexhancock/ObjectiveDDP

static void calculate_H_AMK( SRP_HashAlgorithm alg, unsigned char *dest, const BIGNUM * A, const unsigned char * M, const unsigned char * K )
{
    HashCTX ctx;
    
    hash_init( alg, &ctx );
    
    update_hash_n( alg, &ctx, A );
    hash_update( alg, &ctx, M, hash_length(alg) );
    hash_update( alg, &ctx, K, hash_length(alg) );
    
    hash_final( alg, &ctx, dest );
}

Exemplo n.º 4

Arquivo: srp.cpp Projeto: ChunHungLiu/freeminer

static SRP_Result calculate_H_AMK(SRP_HashAlgorithm alg, unsigned char *dest,
	const mpz_t A, const unsigned char *M, const unsigned char *K)
{
	HashCTX ctx;

	hash_init(alg, &ctx);

	if (!update_hash_n(alg, &ctx, A)) return SRP_ERR;
	hash_update(alg, &ctx, M, hash_length(alg));
	hash_update(alg, &ctx, K, hash_length(alg));

	hash_final(alg, &ctx, dest);
	return SRP_OK;
}