C# MySQL中使用波兰语字符的AES_DECRYPT（）和AES_ENCRYPT（）
我有一个MySQL数据库，它被配置为接收带有波兰语字符（f.exą、ę、ó、ł等）的数据 现在，我想使用C# MySQL中使用波兰语字符的AES_DECRYPT（）和AES_ENCRYPT（）,c#,mysql,encryption,aes,C#,Mysql,Encryption,Aes,我有一个MySQL数据库，它被配置为接收带有波兰语字符（f.exą、ę、ó、ł等）的数据 现在，我想使用AES\u ENCRYPT（）将带有这些波兰字符的数据发送到数据库，然后使用AES\u DECRYPT（）从那里获取它们。 我的问题是，我在C#中接收到一个byte[]数组，该数组有X个元素，其中X是我接收到的文本的长度。每个数组元素都有一个ASCII码，它代表一个字符。我可以使用Encoding类轻松地将其转换为文本，但我不会在输出文本中获得波兰语字符 F.例如： 我向db发送AES加密（'
AES\u ENCRYPT（）AES\u DECRYPT（）byte[]'aaa''。
如何使用AES_解密/加密或者如何从aes_decrypt（）而不是字节[]获取字符串输出？为什么不在代码中而不是在查询中实现加密/解密
private static Byte[] Encrypt(String toEncrypt, Byte[] Key, Byte[] IV)
{
CryptoStream streamCrypto = null;
MemoryStream streamMemory = null;
RijndaelManaged aes = null;
StreamWriter streamWriter = null;
try
{
aes = new RijndaelManaged();
aes.Key = Key;
aes.IV = IV;
ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
streamMemory = new MemoryStream();
streamCrypto = new CryptoStream(streamMemory, encryptor, CryptoStreamMode.Write);
streamWriter = new StreamWriter(streamCrypto);
streamWriter.Write(toEncrypt);
}
finally
{
if (streamWriter != null)
streamWriter.Close();
if (streamCrypto != null)
streamCrypto.Close();
if (streamMemory != null)
streamMemory.Close();
if (aes != null)
aes.Clear();
}
return streamMemory.ToArray();
}
public static String Decrypt(Byte[] toDecrypt, Byte[] Key, Byte[] IV)
{
CryptoStream streamCrypto = null;
MemoryStream streamMemory = null;
RijndaelManaged aes = null;
StreamReader streamReader = null;
String output = null;
try
{
aes = new RijndaelManaged();
aes.Key = Key;
aes.IV = IV;
ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);
streamMemory = new MemoryStream(toDecrypt);
streamCrypto = new CryptoStream(streamMemory, decryptor, CryptoStreamMode.Read);
streamReader = new StreamReader(streamCrypto);
output = streamReader.ReadToEnd();
}
finally
{
if (streamReader != null)
streamReader.Close();
if (streamCrypto != null)
streamCrypto.Close();
if (streamMemory != null)
streamMemory.Close();
if (aes != null)
aes.Clear();
}
return output;
}
Byte[] encrypted = Encrypt(yourString, Key, IV);
String decrypted = Decrypt(dbData, Key, IV);
INSERT INTO mysecrets (mysecret1, mysecret2) VALUES (AES_ENCRYPT(secret1, YOUR_ENCRYPTION_KEY), AES_ENCRYPT(secret2, YOUR_ENCRYPTION_KEY))
SELECT AES_DECRYPT(mysecret1, YOUR_ENCRYPTION_KEY) AS secret1, AES_DECRYPT(mysecret1, YOUR_ENCRYPTION_KEY) AS secret2 FROM mysecrets
为什么不在代码中而不是在查询中实现加密/解密呢
private static Byte[] Encrypt(String toEncrypt, Byte[] Key, Byte[] IV)
{
CryptoStream streamCrypto = null;
MemoryStream streamMemory = null;
RijndaelManaged aes = null;
StreamWriter streamWriter = null;
try
{
aes = new RijndaelManaged();
aes.Key = Key;
aes.IV = IV;
ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
streamMemory = new MemoryStream();
streamCrypto = new CryptoStream(streamMemory, encryptor, CryptoStreamMode.Write);
streamWriter = new StreamWriter(streamCrypto);
streamWriter.Write(toEncrypt);
}
finally
{
if (streamWriter != null)
streamWriter.Close();
if (streamCrypto != null)
streamCrypto.Close();
if (streamMemory != null)
streamMemory.Close();
if (aes != null)
aes.Clear();
}
return streamMemory.ToArray();
}
public static String Decrypt(Byte[] toDecrypt, Byte[] Key, Byte[] IV)
{
CryptoStream streamCrypto = null;
MemoryStream streamMemory = null;
RijndaelManaged aes = null;
StreamReader streamReader = null;
String output = null;
try
{
aes = new RijndaelManaged();
aes.Key = Key;
aes.IV = IV;
ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);
streamMemory = new MemoryStream(toDecrypt);
streamCrypto = new CryptoStream(streamMemory, decryptor, CryptoStreamMode.Read);
streamReader = new StreamReader(streamCrypto);
output = streamReader.ReadToEnd();
}
finally
{
if (streamReader != null)
streamReader.Close();
if (streamCrypto != null)
streamCrypto.Close();
if (streamMemory != null)
streamMemory.Close();
if (aes != null)
aes.Clear();
}
return output;
}
Byte[] encrypted = Encrypt(yourString, Key, IV);
String decrypted = Decrypt(dbData, Key, IV);
INSERT INTO mysecrets (mysecret1, mysecret2) VALUES (AES_ENCRYPT(secret1, YOUR_ENCRYPTION_KEY), AES_ENCRYPT(secret2, YOUR_ENCRYPTION_KEY))
SELECT AES_DECRYPT(mysecret1, YOUR_ENCRYPTION_KEY) AS secret1, AES_DECRYPT(mysecret1, YOUR_ENCRYPTION_KEY) AS secret2 FROM mysecrets
使用编码转换可能会对您有所帮助
select convert(aes_decrypt(aes_encrypt('ąąą', 'abcdefg'), 'abcdefg') using UTF8);
使用编码转换可能会对您有所帮助
select convert(aes_decrypt(aes_encrypt('ąąą', 'abcdefg'), 'abcdefg') using UTF8);
MySQL数据以字符为单位，而加密则以字节为单位。在加密字符之前，需要将字符转换为字节，还需要将解密后的字节转换回字符。这意味着您需要显式指定两端使用的字符编码，以便它们匹配。当前的标准是UTF-8，因此您应该在每一端指定它。如果UTF-8不起作用，那么在两端尝试一些Microsoft特定的字符编码。您的MySQL数据是以字符为单位的，而加密是以字节为单位的。在加密字符之前，需要将字符转换为字节，还需要将解密后的字节转换回字符。这意味着您需要显式指定两端使用的字符编码，以便它们匹配。当前的标准是UTF-8，因此您应该在每一端指定它。如果UTF-8不起作用，那么在两端尝试一些Microsoft特定的字符编码。这需要做很多工作。首先，我想尝试使用mysql函数来实现它，这需要做很多工作。首先，我想尝试使用mysql函数来实现它。嗯，当我在mysql工作台中实现它时，它就可以工作了！它有波兰字！但是当我在我的C代码中使用
ExecuteScalar（）aesąu encrypt（使用UTF8转换，'abcdefg'）ExecuteScalar（）aesąu encrypt（使用UTF8转换，'abcdefg'）byte[]bytes=Encoding.UTF8.GetBytes（string）将字符串转换为byte[]byte[]bytes=Encoding.UTF8.GetBytes（string）将字符串转换为byte[]