我有这个C代码,我必须用C#编写。
如何在C#中编写这些ecb des和3des函数?
/**
* Simple Single-Des Encryption procedure.
* Does not modify the input data.
* Encrypted result is returned in a separate buffer.
*
* @param pResult (out) Result of the encrypted byte
* @param pData (in) One byte of input data
* @param pKey (in) The DES-key
*/
void DesEncrypt(void *pResult, const void *pData, KEY_1DES *pKey)
{
memcpy(pResult, pData, 8);
DES_key_schedule k;
DES_set_key_unchecked((const_DES_cblock *)&pKey, &k);
DES_ecb_encrypt((const_DES_cblock *)pData, (const_DES_cblock *)pResult, &k, DES_ENCRYPT);
}
/**
* Encrypts a byte using double length 3DES
*
* @param pResult (out) Result of the decryption
* @param pData (in) One byte of input data
* @param pKey (in) The 3DES-key
*/
void DesEncrypt3Des(void *pResult, const void *pData, KEY_3DES *pKey)
{
memcpy(pResult, pData, 8);
//DES_set_key_checked()
DES_key_schedule left;
DES_set_key_unchecked((const_DES_cblock *)&pKey->left, &left);
DES_key_schedule right;
DES_set_key_unchecked((const_DES_cblock *)&pKey->right, &right);
DES_ecb3_encrypt((const_DES_cblock *)pData, (const_DES_cblock *)pResult, &left, &right, &left, DES_ENCRYPT);
}
我问这个是因为有很多方法可以做到这一点,我必须确保使用相同的加密参数。
答案 0 :(得分:0)
为什么不使用TripleDESCryptoServiceProvider
中的System.Security.Cryptography
?
public static string Encrypt(string data, string pKey)
{
TripleDESCryptoServiceProvider cryptor = new TripleDESCryptoServiceProvider();
byte[] array = null;
cryptor.Key = pKey;
cryptor.Mode = CipherMode.ECB;
ICryptoTransform encrypt = cryptor.CreateEncryptor();
array = ASCIIEncoding.ASCII.GetBytes(data);
string retVal = "";
retVal = Convert.ToBase64String(encrypt.TransformFinalBlock(array, 0, array.Length));
return retVal;
}
对于解密使用相同的逻辑,而是调用CreateDecryptor()