三、openssl sha256实现 #include#include#includestd::stringsha256(conststd::string&input){unsignedcharhash[SHA256_DIGEST_LENGTH];SHA256_CTX sha256;SHA256_Init(&sha256);SHA256_Update(&sha256,input.c_str(),input.length());SHA256_Final(hash,&sha256);std::stringstream ss;for(inti=0;i<SHA...
gcc -o sha512_256_example sha512_256_example.c -lssl -lcrypto Python 示例 虽然OpenSSL 是一个 C 库,但你也可以通过 Python 的 hashlib 模块使用 SHA-512/256: 代码语言:javascript 复制 import hashlib data = b"Hello, SHA-512/256!" hash_object = hashlib.sha512(data) hash_digest = hash_ob...
gcc -o sha512_256_example sha512_256_example.c -lssl -lcrypto Python 示例 虽然OpenSSL 是一个 C 库,但你也可以通过 Python 的 hashlib 模块使用 SHA-512/256: 代码语言:javascript 复制 import hashlib data = b"Hello, SHA-512/256!" hash_object = hashlib.sha512(data) hash_digest = hash_ob...
4.生成私钥和公钥 openssl ecparam -genkey -name prime256v1 -out eccpri256.key openssl ec -in eccpri256.key -pubout -out eccpri256.pem 5.运行结果 root@ubuntu:/home/workspace/test/demo_sign# ./ecdsa s eccpri256.key sign digest: ¹M'¹M¥.Rؚ}«尣zS Ω E948080F0496BE...
void sha256(const std::string &srcStr, std::string &encodedStr, std::string &encodedHexStr) { // 调用sha256哈希 unsigned char mdStr[33] = {0}; SHA256((const unsigned char *)srcStr.c_str(), srcStr.length(), mdStr); // 哈希后的字符串 encodedStr = std::string((const...
C语言openssl库的ECDSA-with-sha256签名和验签 1.直接上源码: AI检测代码解析 #include <stdio.h> #include <string.h> #include <openssl/ecdsa.h> #include <openssl/pem.h> #include <openssl/err.h> // base64 编码 char *base64_encode(const char *buffer, int length) {...
C语言openssl库的ECDSA-with-sha256签名和验签 简介:C语言openssl库的ECDSA-with-sha256签名和验签,直接上源码。 1.直接上源码: #include <stdio.h>#include <string.h>#include <openssl/ecdsa.h>#include <openssl/pem.h>#include <openssl/err.h>// base64 编码char *base64_encode(const char *buffer...
EVP_DigestInit(&md_ctx,EVP_sha256())){printf("EVP_digest fail\n");return-1;}if(!EVP_DigestUpdate(&md_ctx,(constvoid*)input,input_len)){printf("EVP_DigestUpdate fail\n");return-1;}if(!EVP_DigestFinal(&md_ctx,digest,&digest_len)){// 待签名消息用sha256生成256比特的签名摘要...
SHA256((unsigned char *)data, strlen(data), md); printHex(md, WHICH_DIGEST_LENGTH); privKey = ReadPrivateKey(PRIVATE_KEY_PATH); if (!privKey) { ERR_print_errors_fp (stderr); return -1; } /* 签名 */ nRet = RSA_sign(SHA_WHICH, md, WHICH_DIGEST_LENGTH, buf, &nOutLen, pri...
SHA256((unsignedchar*)data, strlen(data), md); printHex(md, WHICH_DIGEST_LENGTH); pubKey=ReadPublicKey(PUBLIC_KEY_PATH);if(!pubKey) { printf("Error: can't load public key");return-1; }/*验签*/nRet=RSA_verify(SHA_WHICH, md, WHICH_DIGEST_LENGTH, buf, nOutLen, pubKey); ...