static void Main(string[] args)
{
var str = CryptoSecureString.ToSecureString(new[] { 'h', 'i', 'r', 'o' });
char [] charArray = CryptoSecureString.CharacterData(str);
string unsecure = CryptoSecureString.ConvertToUnsecureString(str);
var rsaParameters = new CryptoRSAParameters();
rsaParameters.GenerateKeys();
Console.WriteLine($"Random {Convert.ToBase64String(CryptoRandom.Generate(32))}");
Console.WriteLine("-------------------------------------------");
var message = "Hiro universe";
var messageBytes = Encoding.UTF8.GetBytes(message);
Console.WriteLine($"MD5 message: {message} hash: {Convert.ToBase64String(CryptoHash.Md5(messageBytes))}");
Console.WriteLine($"SHA1 message: {message} hash: {Convert.ToBase64String(CryptoHash.Sha1(messageBytes))}");
Console.WriteLine($"SHA256 message: {message} hash: {Convert.ToBase64String(CryptoHash.Sha256(messageBytes))}");
Console.WriteLine($"SHA512 message: {message} hash: {Convert.ToBase64String(CryptoHash.Sha512(messageBytes))}");
var key = CryptoRandom.Generate(32);
Console.WriteLine($"HMAC MD5 message: {message} hash: {Convert.ToBase64String(CryptoHmac.Md5(messageBytes, key))}");
Console.WriteLine($"HMAC SHA1 message: {message} hash: {Convert.ToBase64String(CryptoHmac.Sha1(messageBytes, key))}");
Console.WriteLine($"HMAC SHA256 message: {message} hash: {Convert.ToBase64String(CryptoHmac.Sha256(messageBytes, key))}");
Console.WriteLine($"HMAC SHA512 message: {message} hash: {Convert.ToBase64String(CryptoHmac.Sha512(messageBytes, key))}");
Console.WriteLine("-------------------------------------------");
Console.WriteLine("Passsword hash with salt");
Console.WriteLine($"Password: {message}");
Console.WriteLine($"Password hashed: {Convert.ToBase64String(CryptoHash.Password(messageBytes))}");
Console.WriteLine("-------------------------------------------");
var salt = CryptoRandom.Generate(32);
Console.WriteLine("Passsword hash with salt - Based Key Derivation Function - PBKDF2");
Console.WriteLine($"Password: {message}");
Console.WriteLine($"Password hashed 100 rounds: {Convert.ToBase64String(CryptoHash.Password(messageBytes, salt, 100))}");
Console.WriteLine($"Password hashed 1000 rounds: {Convert.ToBase64String(CryptoHash.Password(messageBytes, salt, 1000))}");
Console.WriteLine($"Password hashed 10000 rounds: {Convert.ToBase64String(CryptoHash.Password(messageBytes, salt, 10000))}");
Console.WriteLine("-------------------------------------------");
var desKey = CryptoRandom.Generate(8);
var desIv = CryptoRandom.Generate(8);
var desEncryptedMessage = CryptoDes.Encrypt(message, desKey, desIv);
var desDecryptedMessage = CryptoDes.Decrypt(desEncryptedMessage, desKey, desIv);
Console.WriteLine("DES Encryption");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Key: {Convert.ToBase64String(desKey)}");
Console.WriteLine($"IV: {Convert.ToBase64String(desIv)}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(desEncryptedMessage)}");
Console.WriteLine($"Decrypted: {desDecryptedMessage}");
Console.WriteLine("-------------------------------------------");
var tripleDesKey = CryptoRandom.Generate(16);
var tripleDesIv = CryptoRandom.Generate(8);
var tripleDesEncryptedMessage = CryptoTripleDes.Encrypt(message, tripleDesKey, tripleDesIv);
var tripleDesDecryptedMessage = CryptoTripleDes.Decrypt(tripleDesEncryptedMessage, tripleDesKey, tripleDesIv);
Console.WriteLine("Triple DES Encryption");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Key: {Convert.ToBase64String(tripleDesKey)}");
Console.WriteLine($"IV: {Convert.ToBase64String(tripleDesIv)}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(tripleDesEncryptedMessage)}");
Console.WriteLine($"Decrypted: {tripleDesDecryptedMessage}");
Console.WriteLine("-------------------------------------------");
var aesKey = CryptoRandom.Generate(32);
var aesIv = CryptoRandom.Generate(16);
var aesEncryptedMessage = CryptoAes.Encrypt(message, aesKey, aesIv);
var aesDecryptedMessage = CryptoAes.Decrypt(aesEncryptedMessage, aesKey, aesIv);
Console.WriteLine("AES Encryption");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Key: {Convert.ToBase64String(aesKey)}");
Console.WriteLine($"IV: {Convert.ToBase64String(aesIv)}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(aesEncryptedMessage)}");
Console.WriteLine($"Decrypted: {aesDecryptedMessage}");
Console.WriteLine("-------------------------------------------");
var rsaEncryptedMessage = CryptoRsa.Encrypt(messageBytes, rsaParameters.publicKey);
var rsaDecryptedMessage = CryptoRsa.Decrypt(rsaEncryptedMessage, rsaParameters.privateKey);
Console.WriteLine("RSA Encryption");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(rsaEncryptedMessage)}");
Console.WriteLine($"Decrypted: {Encoding.Default.GetString(rsaDecryptedMessage)}");
Console.WriteLine("-------------------------------------------");
var hybridEncryptedPacket = CryptoHybrid.Encrypt(message, rsaParameters.publicKey);
var hybridDecryptedMessage = CryptoHybrid.Decrypt(hybridEncryptedPacket, rsaParameters.privateKey);
Console.WriteLine("Hybrid Encryption using AES and RSA");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(hybridEncryptedPacket.EncryptedData)}");
Console.WriteLine($"Decrypted: {hybridDecryptedMessage}");
Console.WriteLine("-------------------------------------------");
var hashedMessage = CryptoHash.Sha256(messageBytes);
var signature = CryptoDigitalSignature.Sign(hashedMessage, rsaParameters.privateKey);
var verify = CryptoDigitalSignature.Verify(hashedMessage, signature, rsaParameters.publicKey);
Console.WriteLine("Digital Signature");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Signature: {Convert.ToBase64String(signature)}");
Console.WriteLine("Is Verified: " + (verify ? "true" : "false"));
Console.WriteLine("-------------------------------------------");
try {
var hybridSignatureEncryptedPacket = CryptoHybridIntegrity.Encrypt(message, rsaParameters);
var hybridSignatureDecryptedMessage = CryptoHybridIntegrity.Decrypt(hybridSignatureEncryptedPacket, rsaParameters);
Console.WriteLine("Hybrid encryption with digital signature");
Console.WriteLine($"Text: {message}");
Console.WriteLine($"Signature: {Convert.ToBase64String(hybridSignatureEncryptedPacket.Signature)}");
Console.WriteLine($"Encrypted: {Convert.ToBase64String(hybridSignatureEncryptedPacket.EncryptedData)}");
Console.WriteLine($"Decrypted: {hybridSignatureDecryptedMessage}");
}
catch (CryptographicException ex)
{
Console.WriteLine("Error : " + ex.Message);
}
}