我尝试在C#和PHP之间进行加密和解密过程。
我的C#代码:
this.EncryptData("123456", 1024, this.PublicKey);
public byte[] Encrypt(byte[] byte_0, int keysize, string publicKey)
{
byte[] numArray;
using (RSACryptoServiceProvider rSACryptoServiceProvider = new RSACryptoServiceProvider(keysize))
{
rSACryptoServiceProvider.FromXmlString(publicKey);
numArray = rSACryptoServiceProvider.Encrypt(byte_0, this.bool_0);
}
return numArray;
}
public string EncryptData(string string_0, int keysize, string publicKey)
{
string base64String;
try
{
byte[] numArray = this.Encrypt(Encoding.UTF8.GetBytes(string_0), keysize, publicKey);
base64String = Convert.ToBase64String(numArray);
}
catch (Exception exception)
{
base64String = string.Empty;
}
return base64String;
}
public byte[] Decrypt(byte[] byte_0, int keysize, string Key)
{
byte[] numArray;
using (RSACryptoServiceProvider rSACryptoServiceProvider = new RSACryptoServiceProvider(keysize))
{
rSACryptoServiceProvider.FromXmlString(Key);
numArray = rSACryptoServiceProvider.Decrypt(byte_0, this.bool_0);
}
return numArray;
}
public string DecryptData(string string_0, int keysize, string Key)
{
string str;
try
{
byte[] numArray = this.Decrypt(Convert.FromBase64String(string_0), keysize, Key);
str = Encoding.UTF8.GetString(numArray);
}
catch (Exception exception)
{
str = string.Empty;
}
return str;
}
和我的PHP:lib(https://github.com/membersuite/sdk-php/blob/master/APISample/SSOWithSDK/phpseclib/Crypt/RSA_XML.php)
$rsa = new Crypt_RSA_XML();
$plaintext = '123456';
$rsa->loadKeyfromXML($publicKey);
$ciphertext = base64_encode(strrev($rsa->encrypt($plaintext)));
PHP加密后的代码不能通过c#代码解密。有人可以帮忙吗?
答案 0 :(得分:1)
虽然Microsoft对数字使用小端符号,但RSA已由PKCS#1 / RFC 3447定义。这明确定义了如何进行填充等,但它也定义了使用I2OSP或整数到八位字符串原语的结果八位字节串的外观。此原语将输出指定为大端格式中的固定大小(密钥大小)字节数组。这也是PHP使用的编码,因此您不应该反转输出。
换句话说,您不必使用strrev
。