internal static string CreateHash(IHashProvider provider, string plaintext)
{
byte[] bytes = Encoding.Unicode.GetBytes(plaintext);
byte[] inArray = provider.CreateHash(bytes);
CryptographyUtility.GetRandomBytes(bytes);
return(Convert.ToBase64String(inArray));
}
internal static bool CompareHash(IHashProvider provider, string plaintext, string hashedText)
{
byte[] bytes = Encoding.Unicode.GetBytes(plaintext);
byte[] hashedtext = Convert.FromBase64String(hashedText);
bool flag = provider.CompareHash(bytes, hashedtext);
CryptographyUtility.GetRandomBytes(bytes);
return(flag);
}
void AddSaltToPlainText(ref byte[] salt, ref byte[] plaintext)
{
if (this.saltEnabled)
{
if (salt == null)
{
salt = CryptographyUtility.GetRandomBytes(0x10);
}
plaintext = CryptographyUtility.CombineBytes(salt, plaintext);
}
}
internal static string EncryptSymmetric(ISymmetricCryptoProvider provider, string plaintext)
{
if (string.IsNullOrEmpty(plaintext))
{
throw new ArgumentException("The value can not be a null or empty string.", "plaintext");
}
byte[] bytes = Encoding.Unicode.GetBytes(plaintext);
byte[] inArray = provider.Encrypt(bytes);
CryptographyUtility.GetRandomBytes(bytes);
return(Convert.ToBase64String(inArray));
}
internal static string DecryptSymmetric(ISymmetricCryptoProvider provider, string ciphertextBase64)
{
if (string.IsNullOrEmpty(ciphertextBase64))
{
throw new ArgumentException("The value can not be a null or empty string.", "ciphertextBase64");
}
byte[] ciphertext = Convert.FromBase64String(ciphertextBase64);
byte[] bytes = provider.Decrypt(ciphertext);
string str = Encoding.Unicode.GetString(bytes);
CryptographyUtility.GetRandomBytes(bytes);
return(str);
}
byte[] GenerateSalt()
{
return(CryptographyUtility.GetRandomBytes(0x10));
}