HMAC_Init_ex(&ctx, (constvoid*)key, key_len, engine, NULL); HMAC_Update(&ctx, data, data_len); HMAC_Final(&ctx, output, &output_length); HMAC_CTX_cleanup(&ctx);return0; }/*** hmac加密 参数: algorithm_name, 摘要算法名称, 示例"sha512"、"sha256"、"sha1"、"md5"、"sha224"、...
void HMAC_CTX_free(HMAC_CTX *ctx); 释放HMAC上下文结构。 int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md); 初使化HMAC上下文结构,key和len指定密码。 成功返回1,失败返回0。 int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len); 向HMAC上下文...
void hmac_sm3(const unsigned char *key, int key_len, const unsigned char *data, int data_len, unsigned char *digest, unsigned int *digest_len) { HMAC_CTX *ctx; if (!(ctx = HMAC_CTX_new())) { handleErrors(); } if (HMAC_Init_ex(ctx, key, key_len, EVP_sm3(), NULL) !=...
HMAC_CTX_init(&ctx); HMAC_Init_ex(&ctx, key, strlen(key), engine, NULL); HMAC_Update(&ctx, (unsigned char*)input, strlen(input)); // input is OK; &input is WRONG !!! HMAC_Final(&ctx, output, &output_length); HMAC_CTX_cleanup(&ctx); return 0; } main.cpp #include "algo_...
The first mention on that page of HMAC_CTX is: HMAC_CTX_init() initialises a HMAC_CTX before first use. It must be called. But it doesn't seem to say what an HMAC_CTX. So, what is it, and what does CTX stand for? openssl Share Improve this question Follow asked Apr 4, 2014...
HMAC_Init_ex(&ctx, key, strlen(key), EVP_sha256(), NULL); HMAC_Update(&ctx, (unsigned char*)data, strlen(data)); HMAC_Final(&ctx, result, &len); HMAC_CTX_cleanup(&ctx); printf("HMAC digest: "); int i; for (i = 0; i != len; i++) ...
inttest_openssl_hmac() { HMAC_CTXctx; HMAC_CTX_init(&ctx); constEVP_MD*engine=EVP_sha256();// it can also be: EVP_md5(), EVP_sha1, etc constchar*key="https://github.com/fengbingchun"; constchar*data="https://blog.csdn.net/fengbingchun"; ...
int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md);初使化HMAC上下文结构，key和len指定密码。成功返回1，失败返回0。int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len);向HMAC上下文输入字节流。成功返回1，失败返回0。int HMAC_Final(HMAC...
我们需要弄清楚 DRBG 层将是什么样子,代码的很大一部分需要放在 FIPS 模块内。目前,此代码访问 EVP 功能,而这些功能可能不会在模块内部公开。例如,drbg_ctr_init()从 NID 解析 EVP_CIPHER,然后设置一个 EVP_CIPHER_CTX。 熵 对于所有平台,操作系统将提供熵。对于某些平台,还可以使用内置的硬件随机数生成器,但这...
HMAC_CTX_cleanup CRYPTO_set_mem_functions OPENSSL_init CRYPTO_set_mem_ex_functions CRYPTO_set_locked_mem_functions CRYPTO_set_locked_mem_ex_functions CRYPTO_set_mem_debug_functions CRYPTO_get_mem_functions CRYPTO_get_mem_ex_functions CRYPTO_get_locked_mem_functions ...