[英]AES string encryption/decryption characters are spaced out
我正在使用AES加密然后解密字符串。 但我的輸出看起來像這樣:
Original text >> HI WORLD
Decrypted text >> H I W O R L D
我嘗試了很多代碼,但我沒有發現問題。
這里的問題在哪里?
class Program
{
public static void Main(string[] args)
{
byte[] aesKey = Cryptography.GenerateAes128Key();
Console.WriteLine("AES key >> " + aesKey.Length);
string originalText = "HI WORLD";
byte[] myMess = ASCIIEncoding.Unicode.GetBytes(originalText);
Console.WriteLine("Original text >> " + ASCIIEncoding.Unicode.GetString(myMess));
byte[] myEcnryptedMess = Cryptography.Encrypt(myMess, aesKey);
Console.WriteLine("Encrypted text >> " + ASCIIEncoding.Unicode.GetString(myEcnryptedMess));
Console.WriteLine("Decrypted text >> " + Cryptography.Decrypt(myEcnryptedMess, aesKey));
Console.WriteLine("Press any key to continue . . . ");
Console.ReadKey(true);
}
public static byte[] Encrypt(byte[] plainTextBytes, byte[] Key)
{
byte[] iv = new byte[Key.Length];
Aes myAes = Aes.Create();
ICryptoTransform encryptor = myAes.CreateEncryptor(Key, iv);
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
cryptoStream.FlushFinalBlock();
byte[] cipherTextBytes = memoryStream.ToArray();
// Close both streams.
memoryStream.Close();
cryptoStream.Close();
return cipherTextBytes;
}
public static string Decrypt(byte[] cipherTextBytes, byte[] Key)
{
byte[] iv = new byte[Key.Length];
Aes myAes = Aes.Create();
ICryptoTransform decryptor = myAes.CreateDecryptor(Key, iv);
MemoryStream memoryStream = new MemoryStream(cipherTextBytes);
CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
byte[] plainTextBytes = new byte[cipherTextBytes.Length];
// Start decrypting.
int decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length);
// Close both streams.
memoryStream.Close();
cryptoStream.Close();
// Convert decrypted data into a string.
// Let us assume that the original plaintext string was UTF8-encoded.
string plainText = Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount);
// Return decrypted string.
return plainText;
}
}
您正在使用不同的編碼來GetBytes和GetString:
ASCIIEncoding.Unicode.GetBytes(originalText);
接着
Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount)
嘗試對兩個操作使用相同的操作。
短劍的一種
你正在搞亂你的字符串編碼。 ASCIIEncoding.Unicode
基本上是無稽之談。 (實際上,它與Encoding.Unicode
相同,但以誤導的方式編寫。)
您想使用哪種編碼? UTF-16,UTF-8還是ASCII? 根據選擇,使用Encoding.Unicode
, Encoding.UTF8
或Encoding.ASCII
,並堅持下去。 我認為UTF-8是最好的選擇,因此,使用這個:
// ...
string originalText = "HI WORLD";
byte[] myMess = Encoding.UTF8.GetBytes(originalText);
Console.WriteLine("Original text >> " + Encoding.UTF8.GetString(myMess));
byte[] myEcnryptedMess = Cryptography.Encrypt(myMess, aesKey);
Console.WriteLine("Encrypted text >> " + Encoding.UTF8.GetString(myEcnryptedMess));
Console.WriteLine("Decrypted text >> " + Cryptography.Decrypt(myEcnryptedMess, aesKey));
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.