idp.id_offset = id->id_offset;if(ikev2_print_id(&idp, idstr,sizeof(idstr)) ==-1)gotodone;if(len ==0) {/* Data is already an public key */peerkey = (EVP_PKEY *)data; }else{if((rawcert = BIO_new_mem_buf(data, len)) ==NULL)gotodone;if((peerrsa = d2i_RSAPublicKey_...
开密钥系统。公开密钥系统被⼴泛地⽤于各种密码协议、数字签名以及电⼦商务等各种领域中。5.2 RSA 算法 公开密钥系统使⽤的算法最流⾏的当属 RSA 算法，它由 Ronald Rivest、Adi Shamir 和 Lenoard Adleman 于上世纪 70 年代发明，该算法的安全性基于⼤数分解的难度，它的原理如下： 设：明...
EC_KEY *ec =EVP_PKEY_get1_EC_KEY(pkey);constEC_POINT *pubkey = EC_KEY_get0_public_key(ec);constEC_GROUP *group = EC_KEY_get0_group(ec);intnid = EC_GROUP_get_curve_name(group);intkeysize = nid_keysize(nid); BIGNUM *x = BN_new(); BIGNUM *y = BN_new(); BIGNUM *z = ...
//从EVP_PKEY中获取RSA对象structrsa_st *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);//将公钥写入文件intPEM_write_RSAPublicKey(FILE*fp,constRSA*x);//将私钥写入文件intPEM_write_RSAPrivateKey(FILE*fp,constRSA*x,constEVP_CIPHER*enc//加密上下文,unsignedchar*kstr//密钥,intklen//密钥长度,pem_password...
ERR_print_errors_fp(stderr); EVP_PKEY_CTX_free(ctx);returnNULL; } EVP_PKEY_CTX_free(ctx); FILE*fp1 = fopen("./public.pem","w");if(!fp1) {//出错处理} PEM_write_RSAPublicKey(fp1, EVP_PKEY_get0_RSA(pkey)); FILE*fp2 = fopen("./private.pem","w");if(!fp2) ...
if (!EVP_PKEY_assign_RSA(privateKey, rsaPrivateKey)) { fprintf(stderr, "Error when initializing EVP private key.\n"); ERR_print_errors_fp(stderr); return NULL; } return privateKey; } const uint8_t* decodeWrappingKey(uint8_t const* data, const size_t data_len, uint8_t const* ...
对于公钥,如果unsigned char数组包含的是ECC公钥的x和y坐标,我们需要先将它们转换为BIGNUM结构,然后使用OpenSSL的EVP接口来构建EVP_PKEY。 3. 使用OpenSSL的EVP接口进行转换 以下是一个示例函数,用于将包含ECC公钥x和y坐标的unsigned char数组转换为EVP_PKEY结构: ...
1 #include <stdio.h> 2 #include <openssl/rsa.h> 3 #include <openssl/pem.h> 4 #...
1 #include <stdio.h> 2 #include <openssl/rsa.h> 3 #include <openssl/pem.h> 4 #include <openssl/err.h> 5 6 //加密 7 int my_encrypt(const char *input, int input_len, char *output, int *output_len, const char *pri_key_fn) 8 { 9 RSA *p_rsa = ...
EVP_PKEY_free(pkey);if(err !=1) { log_err("crypto_verify_signature: signature verify failed, received bogus data from backend.\n"); ERR_print_errors_fp(stderr); retval =false;gotobailout_ctx_cleanup; } retval =true; bailout_ctx_cleanup: ...