EVP_MD_CTX md_ctx; EVP_PKEY_CTX *pkey_ctx; EVP_MD_CTX_init(&md_ctx); pkey = load_example_rsa_key();if(pkey ==NULL) {gotoout; }/* Test a simple AlgorithmIdentifier. */if(!EVP_DigestSignInit(&md_ctx, &pkey_ctx, EVP_sha256(),NULL, pkey) || !test_algorithm_roundtrip(&md_...
pkey = EVP_PKEY_new();if(!pkey) {returnSOTER_NO_MEMORY; }/* Only RSA supports asymmetric encryption */if(!EVP_PKEY_set_type(pkey, EVP_PKEY_RSA)) { EVP_PKEY_free(pkey);returnSOTER_FAIL; } asym_cipher->pkey_ctx =EVP_PKEY_CTX_new(pkey,NULL);if(!(asym_cipher->pkey_ctx)) { EV...
int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid); #include <openssl/rsa.h> int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md); int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad); int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_...
ctx = EVP_PKEY_CTX_new(signing_key, NULL /* no engine */); if (!ctx) /* Error occurred */ if (EVP_PKEY_sign_init(ctx) <= 0) /* Error */ if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING) <= 0) /* Error */ if (EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha2...
if (EVP_PKEY_CTX_set_rsa_padding(ctxOneM, RSA_PKCS1_PADDING) > 0) { unsigned char toAuxOne[2048]; size_t tlen; if (EVP_PKEY_decrypt(ctxOneM, NULL, &tlen, bufferOneBin, sizeLengthOneBin) > 0) { int rc; secretBufferOneBin = OPENSSL_malloc(tlen); ...
intEVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx); 1. 3)设置密钥长度 intEVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) 1. 4)生成密钥,密钥放在ppkey中,这个ppkey需要手动释放; intEVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
intEVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX*ctx,constchar*type, constchar*value); #include<openssl/rsa.h> intEVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX*ctx,constEVP_MD*md); intEVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX*ctx,intpad); ...
staticconstEVP_MD md5_md={NID_md5,NID_md5WithRSAEncryption,MD5_DIGEST_LENGTH,0,init,update,final,NULL,NULL,MD5_CBLOCK,sizeof(EVP_MD*)+sizeof(MD5_CTX),}; 下面这几个函数查询md的属性信息: intEVP_MD_type(constEVP_MD*md);#defineEVP_MD_nid(e) EVP_MD_type(e)#defineEVP_MD_name(e) ...
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(intid, ENGINE *e); 2)对上下文进行初始化 intEVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx); 3)设置密钥长度 intEVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) 4)生成密钥,密钥放在ppkey中,这个ppkey需要手动释放; ...
int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s, EVP_PKEY *pkey); 签名计算。从宏定义可以看出实际上就是先计算摘要,再用RSA私钥加密。 成功返加1,失败返回0。 # define EVP_VerifyInit(a,b) EVP_DigestInit(a,b) # define EVP_VerifyUpdate(a,b,c) EVP_DigestUpdate(...