AES加密算法，有时结果对，有时不对（不能解密），大家帮忙给看看！

2018-01-29 09:12:02 969 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

AES加密、解密工具类一、AES介绍 AES（Advanced Encryption Standard），中文名称高级加密标准。 AES是开发中常用的加密算法之一。然而由于前后端开发使用的语言不统一，导致经常出现前端加密而后端不能解密的情况出现。然而无论什么语言系统，AES 的算法总是相同的，因此导致结果不一致的原因在于加密设置的参数不一致。于是先来看看在两个平台使用AES加密时需要统一的几个参数。密钥长... 阅读详情

//加密
void CAESDlg::OnEncrypt()
{
int checkstring=((CButton *)GetDlgItem(IDC_STRING))->GetCheck();
int checkfile=((CButton *)GetDlgItem(IDC_FILE))->GetCheck();
CString strpass;
strpass = "1314";
unsigned char *pass=(unsigned char*)LPCTSTR(strpass);
unsigned char inBuff[25],ouBuff[25];
memset(inBuff,0,25);
memset(ouBuff,0,25);
Aes aes(32,pass);
CString stryuanwen,stryw;
GetDlgItemText(IDC_YUANWEN,stryuanwen);
CString str="",strTmp;
for (int i=0;i<stryuanwen.GetLength();i+=16)
{
stryw=stryuanwen.Mid(i,16);
memcpy(inBuff,stryw,16);
aes.Cipher(inBuff,ouBuff);
for(int i=0;i<16;i++)
{
strTmp.Format("%02x",ouBuff[i]);
str+=strTmp;
}
}
SetDlgItemText(IDC_CIPHERTEXT,str);

}
会不会是内存泄漏的原因呢？怎么修改呀！！

...全文

AES加解密算法简介和PHP AES加解密示例 AES加密、解密应用的PHP代码示例阅读详情

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zgl7903 2018-01-30

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stryw=stryuanwen.Mid(i,16); memcpy(inBuff,stryw,16); 如果字符串不足长度，那么后面取到的可能是？？？？另外建议CHAR WCHAR 确定类型，否则容易受编译环境影响

待续_1006 2018-01-30

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接上面的，长度超过范围了


int main(int argc, char* argv[])
{
	string plainText = "40:45:78:41:52:7b";
	string aesKey = "畅想飞扬";//256bits, also can be 128 bits or 192bits 
	//string plainText = "This Program shows how to use ECB, CBC, CBC_CTS, CFB, OFB and CTR mode of AES in Crypto++.";
	//string aesKey = "0123456789ABCDEF0123456789ABCDEF";//256bits, also can be 128 bits or 192bits  
	string aesIV = "ABCDEF0123456789";//128 bits  
	string ECB_EncryptedText, ECB_DecryptedText,
		CBC_EncryptedText, CBC_DecryptedText,
		CBC_CTS_EncryptedText, CBC_CTS_DecryptedText,
		CFB_EncryptedText, CFB_DecryptedText,
		OFB_EncryptedText, OFB_DecryptedText,
		CTR_EncryptedText, CTR_DecryptedText;

	std::string ss1 = "1234567812345678";
	std::string ss = "畅飞扬测试";
	string str = CBC_AESEncryptStr(ss,"ABCDEF0123456789",ss1.c_str());

	//std::string str = CBC_AESDecryptStr(ss1,"ABCDEF0123456789",ss.c_str());
	
	////ECB  
	//ECB_EncryptedText = ECB_AESEncryptStr(aesKey, plainText.c_str());//ECB加密  
	//ECB_DecryptedText = ECB_AESDecryptStr(aesKey, ECB_EncryptedText.c_str());//ECB解密  

	//CBC  
	CBC_EncryptedText = CBC_AESEncryptStr(aesKey, aesIV, plainText.c_str());//CBC加密  
	CBC_DecryptedText = CBC_AESDecryptStr(aesKey, aesIV, CBC_EncryptedText.c_str());//CBC解密  

	//CBC_CTS  
	CBC_CTS_EncryptedText = CBC_CTS_AESEncryptStr(aesKey, aesIV, plainText.c_str());//CBC_CTS加密  
	CBC_CTS_DecryptedText = CBC_CTS_AESDecryptStr(aesKey, aesIV, CBC_CTS_EncryptedText.c_str());//CBC_CTS解密  

	//CFB  
	CFB_EncryptedText = CFB_AESEncryptStr(aesKey, aesIV, plainText.c_str());//CFB加密  
	CFB_DecryptedText = CFB_AESDecryptStr(aesKey, aesIV, CFB_EncryptedText.c_str());//CFB解密  

	//OFB  
	OFB_EncryptedText = OFB_AESEncryptStr(aesKey, aesIV, plainText.c_str());//OFB加密  
	OFB_DecryptedText = OFB_AESDecryptStr(aesKey, aesIV, OFB_EncryptedText.c_str());//OFB解密  

	//CTR  
	CTR_EncryptedText = CTR_AESEncryptStr(aesKey, aesIV, plainText.c_str());//CTR加密  
	CTR_DecryptedText = CTR_AESDecryptStr(aesKey, aesIV, CTR_EncryptedText.c_str());//CTR解密  

	cout << "Crypto++ AES-256 加密测试" << endl;
	cout << "分别使用ECB，CBC, CBC_CTR，CFB，OFB和CTR模式" << endl;
	cout << "加密用密钥:" << aesKey << endl;
	cout << "密钥长度:" << AES::MAX_KEYLENGTH * 8 << "bits" << endl;
	cout << "IV:" << aesIV << endl;
	cout << endl;

	cout << "ECB加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << ECB_EncryptedText << endl;
	cout << "恢复明文：" << ECB_DecryptedText << endl << endl;

	cout << "CBC加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << CBC_EncryptedText << endl;
	cout << "恢复明文：" << CBC_DecryptedText << endl << endl;

	cout << "CBC_CTS加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << CBC_CTS_EncryptedText << endl;
	cout << "恢复明文：" << CBC_CTS_DecryptedText << endl << endl;

	cout << "CFB加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << CFB_EncryptedText << endl;
	cout << "恢复明文：" << CFB_DecryptedText << endl << endl;

	cout << "OFB加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << OFB_EncryptedText << endl;
	cout << "恢复明文：" << OFB_DecryptedText << endl << endl;

	cout << "CTR加密测试" << endl;
	cout << "MAC原文：" << plainText << endl;
	cout << "密文：" << CTR_EncryptedText << endl;
	cout << "恢复明文：" << CTR_DecryptedText << endl << endl;

	getchar();
	return 0;

待续_1006 2018-01-30

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别重复造轮子了，需要什么自己复制粘贴


#include <aes.h>  
#include <Hex.h>      // StreamTransformationFilter  
#include <modes.h>    // CFB_Mode  
#include <iostream>   // std:cerr    
#include <sstream>   // std::stringstream    
#include <string>  

using namespace std;
using namespace CryptoPP;


#ifdef _DEBUG
#pragma comment(lib, "cryptlibd.lib" )  
#endif 

#ifdef _RELEASE
//#pragma comment(lib, "cryptlib.lib" )  
#endif 



std::string ECB_AESEncryptStr(std::string sKey, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);


	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	ECB_Mode_ExternalCipher::Encryption ecbEncryption(aesEncryption);
	StreamTransformationFilter ecbEncryptor(ecbEncryption, new HexEncoder(new StringSink(outstr)));
	ecbEncryptor.Put((byte *)plainText, strlen(plainText));
	ecbEncryptor.MessageEnd();

	return outstr;
}

std::string ECB_AESDecryptStr(std::string sKey, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	ECB_Mode<AES >::Decryption ecbDecryption((byte *)key, AES::MAX_KEYLENGTH);

	HexDecoder decryptor(new StreamTransformationFilter(ecbDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}

std::string CBC_AESEncryptStr(std::string sKey, std::string sIV, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);

	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	CBC_Mode_ExternalCipher::Encryption cbcEncryption(aesEncryption, iv);

	StreamTransformationFilter cbcEncryptor(cbcEncryption, new HexEncoder(new StringSink(outstr)));
	cbcEncryptor.Put((byte *)plainText, strlen(plainText));
	cbcEncryptor.MessageEnd();

	return outstr;
}

std::string CBC_AESDecryptStr(std::string sKey, std::string sIV, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);


	CBC_Mode<AES >::Decryption cbcDecryption((byte *)key, AES::MAX_KEYLENGTH, iv);

	HexDecoder decryptor(new StreamTransformationFilter(cbcDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}

std::string CBC_CTS_AESEncryptStr(std::string sKey, std::string sIV, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);

	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	CBC_CTS_Mode_ExternalCipher::Encryption cbcctsEncryption(aesEncryption, iv);

	StreamTransformationFilter cbcctsEncryptor(cbcctsEncryption, new HexEncoder(new StringSink(outstr)));
	cbcctsEncryptor.Put((byte *)plainText, strlen(plainText));
	cbcctsEncryptor.MessageEnd();

	return outstr;
}

std::string CBC_CTS_AESDecryptStr(std::string sKey, std::string sIV, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);


	CBC_CTS_Mode<AES >::Decryption cbcctsDecryption((byte *)key, AES::MAX_KEYLENGTH, iv);

	HexDecoder decryptor(new StreamTransformationFilter(cbcctsDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}

std::string CFB_AESEncryptStr(std::string sKey, std::string sIV, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);

	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	CFB_Mode_ExternalCipher::Encryption cfbEncryption(aesEncryption, iv);

	StreamTransformationFilter cfbEncryptor(cfbEncryption, new HexEncoder(new StringSink(outstr)));
	cfbEncryptor.Put((byte *)plainText, strlen(plainText));
	cfbEncryptor.MessageEnd();

	return outstr;
}

std::string CFB_AESDecryptStr(std::string sKey, std::string sIV, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);


	CFB_Mode<AES >::Decryption cfbDecryption((byte *)key, AES::MAX_KEYLENGTH, iv);

	HexDecoder decryptor(new StreamTransformationFilter(cfbDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}

std::string OFB_AESEncryptStr(std::string sKey, std::string sIV, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);

	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	OFB_Mode_ExternalCipher::Encryption ofbEncryption(aesEncryption, iv);

	StreamTransformationFilter ofbEncryptor(ofbEncryption, new HexEncoder(new StringSink(outstr)));
	ofbEncryptor.Put((byte *)plainText, strlen(plainText));
	ofbEncryptor.MessageEnd();

	return outstr;
}

std::string OFB_AESDecryptStr(std::string sKey, std::string sIV, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);


	OFB_Mode<AES >::Decryption ofbDecryption((byte *)key, AES::MAX_KEYLENGTH, iv);

	HexDecoder decryptor(new StreamTransformationFilter(ofbDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}

std::string CTR_AESEncryptStr(std::string sKey, std::string sIV, const char *plainText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);

	AES::Encryption aesEncryption((byte *)key, AES::MAX_KEYLENGTH);

	CTR_Mode_ExternalCipher::Encryption ctrEncryption(aesEncryption, iv);

	StreamTransformationFilter ctrEncryptor(ctrEncryption, new HexEncoder(new StringSink(outstr)));
	ctrEncryptor.Put((byte *)plainText, strlen(plainText));
	ctrEncryptor.MessageEnd();

	return outstr;
}

std::string CTR_AESDecryptStr(std::string sKey, std::string sIV, const char *cipherText)
{
	std::string outstr;

	//填key    
	SecByteBlock key(AES::MAX_KEYLENGTH);
	memset(key, 0x30, key.size());
	sKey.size() <= AES::MAX_KEYLENGTH ? memcpy(key, sKey.c_str(), sKey.size()) : memcpy(key, sKey.c_str(), AES::MAX_KEYLENGTH);

	//填iv    
	byte iv[AES::BLOCKSIZE];
	memset(iv, 0x30, AES::BLOCKSIZE);
	sIV.size() <= AES::BLOCKSIZE ? memcpy(iv, sIV.c_str(), sIV.size()) : memcpy(iv, sIV.c_str(), AES::BLOCKSIZE);


	CTR_Mode<AES >::Decryption ctrDecryption((byte *)key, AES::MAX_KEYLENGTH, iv);

	HexDecoder decryptor(new StreamTransformationFilter(ctrDecryption, new StringSink(outstr)));
	decryptor.Put((byte *)cipherText, strlen(cipherText));
	decryptor.MessageEnd();

	return outstr;
}


}

AES加密算法，有时结果对，有时不对（不能解密），大家帮忙给看看！

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