#include<iostream> #include<string> std::string sha256(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::string output; for(inti=0;i<SHA...
在这里,我用的是SHA-256加密,代码如下: sha256.cpp #include<stdio.h>#include<string.h>#include<iostream>#include<string>usingnamespacestd;#include<openssl/sha.h>stringsha256(conststring str){charbuf[2];unsignedcharhash[SHA256_DIGEST_LENGTH]; SHA256_CTX sha256;SHA256_Init(&sha256);SHA256_U...
string str="0123456789abcdefghijklmn"; unsigned char result[20]; SHA1_Init(&ctx); do { //如果是文件,此处读取文件数据,再使用sha1循环迭代,得到的就是整个文件的sah1值。 SHA1_Update(&ctx, str.c_str(), str.length()); } while (0); SHA1_Final(&(result[0]), &ctx); for (int i = ...
int i; unsigned char file_hash[SHA256_DIGEST_LENGTH + 1]; unsigned char signature[RSA_OUTPUT_LEN + 1]; memset(file_hash, 0, SHA256_DIGEST_LENGTH + 1); sha256_file("./xxx.txt", "rb", file_hash); init_rsa(); rsa_hash_val(file_hash, SHA256_DIGEST_LENGTH, signature, &prikey,...
{SHA256_Init(&sha256_ctx);while(!feof(fp)){memset(DataBuff,0x00,sizeof(DataBuff));len=fread(DataBuff,1,MAX_DATA_LEN,fp);if(len){t+=len;//printf("len = [%d] 1\n", len);SHA256_Update(&sha256_ctx,DataBuff,len);//将当前文件块加入并更新SHA256}}//printf("len = [%d]\n"...
}voidsha256_string(char*string,charoutputBuffer[65]) { unsignedcharhash[SHA256_DIGEST_LENGTH]; SHA256_CTX sha256; SHA256_Init(&sha256); SHA256_Update(&sha256,string, strlen(string)); SHA256_Final(hash,&sha256);inti =0;for(i =0; i < SHA256_DIGEST_LENGTH; i++) ...
_init(&md_ctx);if(!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...
再次利用openssl来计算sha1, sha224, sha256, sha384, sha512 请按照之前博文的介绍配置openssl环境。代码如下：[cpp] view plaincopy 1.#include <iostream> 2.#include <openssl/sha.h> 3.#include <openssl/crypto.h> // OPENSSL_cleanse 4.#pragma comment(lib...
在这里,我用的是SHA-256加密,代码如下: #include <iostream> #include <string> using namespace std; #include <openssl/sha.h> string sha256(const string str) { char buf[2]; unsigned char hash[SHA256_DIGEST_LENGTH]; SHA256_CTX sha256; SHA256_Init(&sha256); SHA256_Update(&sha256, str...
以下是一个使用OpenSSL库计算字符串SHA256哈希值的C++示例代码: 代码语言:txt 复制 #include <openssl/sha.h> #include <iostream> #include <iomanip> #include <sstream> std::string sha256(const std::string& input) { unsigned char hash[SHA256_DIGEST_LENGTH]; SHA256_CTX sha256; SHA256_Init(&sha...