RSA加密/解密问题:来自.Net的加密文本未在Java中解密
我在Java中面临解密问题。以下是遇到的错误:RSA加密/解密问题:来自.Net的加密文本未在Java中解密,java,.net,rsa,encryption,Java,.net,Rsa,Encryption,我在Java中面临解密问题。以下是遇到的错误: javax.crypto.BadPaddingException: Blocktype mismatch: -127 at sun.security.rsa.RSAPadding.unpadV15(RSAPadding.java:311) at sun.security.rsa.RSAPadding.unpad(RSAPadding.java:255) 该文本在.Net中使用以下代码进行加密: public string Encr
javax.crypto.BadPaddingException: Blocktype mismatch: -127
at sun.security.rsa.RSAPadding.unpadV15(RSAPadding.java:311)
at sun.security.rsa.RSAPadding.unpad(RSAPadding.java:255)
该文本在.Net中使用以下代码进行加密:
public string EncryptString( string inputString, int dwKeySize, string xmlString )
{
RSACryptoServiceProvider rsaCryptoServiceProvider = new RSACryptoServiceProvider( dwKeySize );
rsaCryptoServiceProvider.FromXmlString( xmlString );
int keySize = dwKeySize / 8;
byte[] bytes = Encoding.UTF32.GetBytes( inputString );
int maxLength = keySize - 42;
int dataLength = bytes.Length;
int iterations = dataLength / maxLength;
StringBuilder stringBuilder = new StringBuilder();
for( int i = 0; i <= iterations; i++ )
{
byte[] tempBytes = new byte[ ( dataLength - maxLength * i > maxLength ) ? maxLength : dataLength - maxLength * i ];
Buffer.BlockCopy( bytes, maxLength * i, tempBytes, 0, tempBytes.Length );
byte[] encryptedBytes = rsaCryptoServiceProvider.Encrypt( tempBytes, true );
Array.Reverse( encryptedBytes );
stringBuilder.Append( Convert.ToBase64String( encryptedBytes ) );
}
return stringBuilder.ToString();
}
我是不是遗漏了什么?如何进行双向加密/解密?您的C应用程序正在使用OAEP padding PKSC v2,而java正在使用PKSC v1.5。请尝试将您的C代码更改为:
ptedBytes = rsaCryptoServiceProvider.Encrypt( tempBytes, false );
这可能有助于:
正如您所说,我更改了代码,但仍然没有得到正确的输出。如果文本是ABC,我将解密字符串作为A3未知字符B3未知字符C3未知字符。我是不是漏掉了什么?现在好像断了链接。
ptedBytes = rsaCryptoServiceProvider.Encrypt( tempBytes, false );