검색결과 리스트
글
AES256 암호화, 복호화
유니티 C#
2018. 11. 7. 11:12
암호화
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private AES256Encrypt(string _Data)
{
byte[] plainBytes = System.Text.Encoding.UTF8.GetBytes(_Data);
System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
{
Mode = System.Security.Cryptography.CipherMode.CBC,
Padding = System.Security.Cryptography.PaddingMode.PKCS7,
KeySize = 256
};
MemoryStream memoryStream = new MemoryStream();
System.Security.Cryptography.ICryptoTransform encryptor = rm.CreateEncryptor(
System.Text.Encoding.UTF8.GetBytes("01234567890123456789012345678901".Substring(0, 256 / 8)),
System.Text.Encoding.UTF8.GetBytes("01234567890123456789012345678901".Substring(0, 128 / 8)));
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, encryptor, System.Security.Cryptography.CryptoStreamMode.Write);
cryptoStream.Write(plainBytes, 0, plainBytes.Length);
cryptoStream.FlushFinalBlock();
byte[] encryptBytes = memoryStream.ToArray();
string encryptString = System.Convert.ToBase64String(encryptBytes);
cryptoStream.Close();
memoryStream.Close();
return encryptString;
}
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cs |
복호화
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private string AES256Decrypt()
{
byte[] encryptBytes = System.Convert.FromBase64String(o);
System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
{
Mode = System.Security.Cryptography.CipherMode.CBC,
Padding = System.Security.Cryptography.PaddingMode.PKCS7,
KeySize = 256
};
MemoryStream memoryStream = new MemoryStream(encryptBytes);
System.Security.Cryptography.ICryptoTransform decryptor = rm.CreateDecryptor(
System.Text.Encoding.UTF8.GetBytes("01234567890123456789012345678901".Substring(0, 256 / 8)),
System.Text.Encoding.UTF8.GetBytes("01234567890123456789012345678901".Substring(0, 128 / 8)));
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, decryptor, System.Security.Cryptography.CryptoStreamMode.Read);
byte[] plainBytes = new byte[encryptBytes.Length];
int plainCount = cryptoStream.Read(plainBytes, 0, plainBytes.Length);
string plainString = System.Text.Encoding.UTF8.GetString(plainBytes, 0, plainCount);
cryptoStream.Close();
memoryStream.Close();
return plainString;
}
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