端口AES加密代碼WinRT

Question

我需要將此代碼（控制檯應用程序在C＃中）： Decrypt PHP encrypted string in C# WinRT代碼。我有：

class Crypto{const string Key = "lkirwf897+22#bbtrm8814z5qq=498j5"; 
const string IV = "741952hheeyy66#cs!9hjv887mxx7@8y"; 
public static string Encrypt(string login) 
{ 
    var input = CryptographicBuffer.ConvertStringToBinary(login, BinaryStringEncoding.Utf8); 
    var key1 = CryptographicBuffer.ConvertStringToBinary(Key, BinaryStringEncoding.Utf8); 
    var iv = CryptographicBuffer.ConvertStringToBinary(IV, BinaryStringEncoding.Utf8); 

    var encryptor = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7); 

    var key2 = encryptor.CreateSymmetricKey(key1); 

    var encrypted = CryptographicEngine.Encrypt(key2, input, iv); 

    return CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf8, encrypted); 
} 

public static string Decrypt(string LoginToDecode) 
{ 
    var input = CryptographicBuffer.ConvertStringToBinary(LoginToDecode, BinaryStringEncoding.Utf8); 
    var key1 = CryptographicBuffer.ConvertStringToBinary(Key, BinaryStringEncoding.Utf8); 
    var iv = CryptographicBuffer.ConvertStringToBinary(IV, BinaryStringEncoding.Utf8); 

    var decryptor = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7); 

    var key2 = decryptor.CreateSymmetricKey(key1); 

    var decrypted = CryptographicEngine.Decrypt(key2, input, iv); 

    return CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf8, decrypted); 

}} 

我有加密功能的最後一行的錯誤： 附加信息：在目標多字節代碼頁中存在的Unicode字符沒有映射。 我想要獲得與上述主題相同的結果。這個解決方案可以正確無誤嗎？

UPDATE 我刪除了錯誤。代碼是：

class Crypto{const string Key = "lkirwf897+22#bbtrm8814z5qq=498j5"; 
const string IV = "741952hheeyy66#cs!9hjv887mxx7@8y"; 

public static string Encrypt(string login) 
{ 
    var input = CryptographicBuffer.ConvertStringToBinary(login, BinaryStringEncoding.Utf8); 
    var key1 = CryptographicBuffer.ConvertStringToBinary(Key, BinaryStringEncoding.Utf8); 
    var iv = CryptographicBuffer.ConvertStringToBinary(IV, BinaryStringEncoding.Utf8); 

    var encryptor = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7); 

    var key2 = encryptor.CreateSymmetricKey(key1); 

    var encrypted = CryptographicEngine.Encrypt(key2, input, iv); 

    return CryptographicBuffer.EncodeToBase64String(encrypted); 
} 

public static string Decrypt(string LoginToDecode) 
{ 
    var input = CryptographicBuffer.DecodeFromBase64String(LoginToDecode); 
    var key1 = CryptographicBuffer.ConvertStringToBinary(Key, BinaryStringEncoding.Utf8); 
    var iv = CryptographicBuffer.ConvertStringToBinary(IV, BinaryStringEncoding.Utf8); 

    var decryptor = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7); 

    var key2 = decryptor.CreateSymmetricKey(key1); 

    var decrypted = CryptographicEngine.Decrypt(key2, input, iv); 

    return CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf8, decrypted); 
    } 
}} 

但這種代碼的結果是不是像上面的題目相同。我需要這個，因爲我必須與PHP服務器進行通信。

UPDATE＃2 好吧，我瞭解到，在WinRT中我只能使用128AES。於是，我改變了PHP腳本：

function decryptRJ128($key,$iv,$string_to_decrypt){ 

$ string_to_decrypt = BASE64_DECODE（$ string_to_decrypt）; $ rtn = mcrypt_decrypt（MCRYPT_RIJNDAEL_128，$ key，$ string_to_decrypt，MCRYPT_MODE_CBC，$ iv）; $ rtn = rtrim（$ rtn，「\ 0 \ 4」）; return（$ rtn）;} function encryptRJ128（$ key，$ iv，$ string_to_encrypt）{$ rtn = mcrypt_encrypt（MCRYPT_RIJNDAEL_128，$ key，$ string_to_encrypt，MCRYPT_MODE_CBC，$ iv）; $ rtn = base64_encode（$ rtn）;回報（$ RTN）;}

而對於

• 密碼= 「性Asd」
• 重點= 「lkirwf897 + 22＃BBT」 這是必須16bit的
• IV = 「741952hheeyy66＃C」

我在c＃「eSy8m8ygN7rtC80DMdGOUQ ==」。我需要這個在PHP中。

Answer 1

嗯，這是我的解決方案。

在C＃代碼中，我需要合併兩個字節數組，然後將其編碼爲base64。

/* PHP */ 
$key  = '12345678abcdefgh'; 
$text  = "d9e978bc7ca9179f0d51e91521d41d8d"; 

$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); 
$iv   = mcrypt_create_iv($iv_size); 
$iv   = '87654321hgfedcba'; //Just to test 

$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $text, MCRYPT_MODE_CBC, $iv); 
$encrypted = base64_encode($iv.$encrypted); 

$decryptedd = base64_decode($encrypted); 
$iv_dec  = substr($decryptedd, 0, $iv_size); 
$decrypted = substr($decryptedd, $iv_size); 
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $decrypted, MCRYPT_MODE_CBC, $iv_dec); 

echo 'Key: '.$key.'<br />'; 
echo 'Text: '.$text.'<br />'; 
echo 'IV: '.$iv.' (Size: '.$iv_size.')<br />'; 
echo 'Encrypted: '.$encrypted.'<br />'; 
echo 'IV decrypted: '.$iv_dec.'<br />'; 
echo 'Decrypted: '.$decrypted.'<br />'; 

這裏是C＃代碼：

var input = CryptographicBuffer.ConvertStringToBinary("d9e978bc7ca9179f0d51e91521d41d8d", BinaryStringEncoding.Utf8); 
var key = CryptographicBuffer.ConvertStringToBinary("12345678abcdefgh", BinaryStringEncoding.Utf8); 
var iv = CryptographicBuffer.ConvertStringToBinary("87654321hgfedcba", BinaryStringEncoding.Utf8); 

var encryptor = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbc); 

byte[] a = iv.ToArray(); 
byte[] b = CryptographicEngine.Encrypt(encryptor.CreateSymmetricKey(key), input, iv).ToArray(); 

byte[] c = new byte[a.Length + b.Length]; 
Buffer.BlockCopy(a, 0, c, 0, a.Length); 
Buffer.BlockCopy(b, 0, c, a.Length, b.Length); 

var result = Convert.ToBase64String(c);