调用cryptlib接口3DES对称加密、信封加密、数字签名等

#include<iostream>
#include <string>
#include "Base.h" //提供base64转码功能
using namespace std;
#include "cryptlib.h"

int main()
{
	cryptInit();
        //cryptlib调用前必须执行init，调用完必须执行end
	cryptEnd();

	return 0;
}
/**
*
*cryptlib产生自签名证书
*
**/
void GenerateKey(){
	int* keyset;
	keyset = (int*)malloc(sizeof(int*)); //密钥库上下文
	int* cryptContext;
	cryptContext = (int*)malloc(sizeof(int*)); //加密上下文
	int* cryptCertificate;
	cryptCertificate = (int*)malloc(sizeof(int*)); //证书上下文
	int status = cryptKeysetOpen(keyset,CRYPT_UNUSED, CRYPT_KEYSET_FILE, "D:\\Private key file.p15", CRYPT_KEYOPT_CREATE);//创建密钥库，（CRYPT_KEYOPT_CREATE）
	status = cryptCreateContext(cryptContext,CRYPT_UNUSED, CRYPT_ALGO_RSA);//RSA算法的密钥上下文
	status = cryptSetAttributeString(*cryptContext, CRYPT_CTXINFO_LABEL, "test1",5);//密钥标签
	status = cryptGenerateKey(*cryptContext);
	status = cryptAddPrivateKey(*keyset, *cryptContext, "1234");//向密钥库添加私钥
	status = cryptCreateCert(cryptCertificate,CRYPT_UNUSED, CRYPT_CERTTYPE_CERTIFICATE);//创建证书
	status = cryptSetAttribute(*cryptCertificate, CRYPT_CERTINFO_XYZZY, 1);//设置为简单证书
	/* Add the public key and certificate owner name and sign the 
	certificate with the private key */
	status = cryptSetAttribute(*cryptCertificate, CRYPT_CERTINFO_SUBJECTPUBLICKEYINFO, *cryptContext);//证书公钥绑定
	status = cryptSetAttributeString(*cryptCertificate, CRYPT_CERTINFO_COMMONNAME, "test1",5);//证书CN
	status = cryptSignCert(*cryptCertificate, *cryptContext);//使用私钥自签发证书
	status =  cryptAddPublicKey(*keyset, *cryptCertificate);//向证书添加公钥
	status = cryptDestroyCert(*cryptCertificate);
	status = cryptDestroyContext(*cryptContext);
	status = cryptKeysetClose(*keyset);
}
/**
*
*从指定密钥库中获取私钥，并签名与验证
*
**/
void signature(){
	/*访问密钥库，获取私钥*/
	int* keyset;
	keyset = (int*)malloc(sizeof(int*));
	int* sigKeyContext;
	sigKeyContext = (int*)malloc(sizeof(int*));
	int status = 0;
	status = cryptKeysetOpen(ke