补位方式:RSA_PKCS1_PADDING 则,最大分组真为RSA_size(r) -11 2. 另外evp提供的签名与验签接口还有 intEVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);intEVP_PKEY_sign(EVP_PKEY_CTX *ctx, unsignedchar*sig, size_t *siglen,constunsignedchar*tbs, size_t tbslen);intEVP_PKEY_verify_init(EVP_PKEY_CTX...
补位方式:RSA_PKCS1_PADDING 则,最大分组真为RSA_size(r) -11 2. 另外evp提供的签名与验签接口还有 intEVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);intEVP_PKEY_sign(EVP_PKEY_CTX *ctx, unsignedchar*sig, size_t *siglen,constunsignedchar*tbs, size_t tbslen);intEVP_PKEY_verify_init(EVP_PKEY_CTX...
EVP_PKEY* X509_get_pubkey (X509* x); 9、创建和释放证书存储区域 X509_STORE * X509_STORE_new(void); void_X509_STORE_free(X509_STORE * v); 函数:创建和发布一个X509_STORE结构,主要用于认证。 10. 将证书添加到证书存储区域 Int_X509_STORE_add_cert(X509_STORE * ctx X509 * x); 函数:将信...
ctx = EVP_CIPHER_CTX_new(); ciph = EVP_CIPHER_fetch(osslctx, "aes-128-cbc", NULL); /* <=== */ EVP_EncryptInit_ex(ctx, ciph, NULL, key, iv); EVP_EncryptUpdate(ctx, ciphertext, &clen, plaintext, plen); EVP_EncryptFinal_ex(ctx, ciphertext + clen, &clentmp); clen += c...
1、SM2实现( 利openssl的evp)加解密#include #include #include #include openssl/ec.h #include openssl/evp.h/* Main function return value:0: main function executes successfully-1: an error occurs*/ int main(void)int ret = -1, i;EVP_PKEY_CTX *pctx = NULL, *ectx = NULL; EVP_PKEY *p...
EVP_PKEY* priKey = EVP_PKEY_new(); EVP_PKEY_assign_RSA(priKey, rsa_private_key); EVP_MD_CTX *mdctx = NULL; size_t slen = 0; size_t blen = 0; unsigned char sig[256]; mdctx = EVP_MD_CTX_create(); EVP_DigestSignInit(mdctx, NULL, EVP_sha1(), NULL, priKey); ...
#include <openssl/ssl.h> #include <openssl/evp.h> int main() { // 生成私钥和公钥对 EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA, NULL); EVP_PKEY_keygen_init(ctx); EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, 2048); EVP_PKEY *pkey = NULL; EVP_PKEY_keygen(ctx, &p...
EVP_MD_CTX *EVP_MD_CTX_new(void); void EVP_MD_CTX_free(EVP_MD_CTX *ctx); 这两个函数用于创建和释放对称摘要上下文对象。 int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type); 初使化摘要上下文,type为摘要算法抽象集合。 成功返回1,失败返回0。 int EVP_DigestUpdate(EVP_MD_CTX *ctx...
EVP_PKEY_CTX_free(ctx); /* generate peer key */ ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL); if (!ctx) exit(5); if (EVP_PKEY_keygen_init(ctx) <= 0) exit(6); if (EVP_PKEY_CTX_set_params(ctx, params) != 1)
ctx2 = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, "provider=myprovider"); Everything is just fine and works perfectly, but a code like this removes generalization of the code. I mean by passing NULL as query string for EVP_PKEY_CTX_new_from_pkey(), you want to easily handle different...