RSA - AES HYBRID ENCRYPTION-DECRYPTION

RSA - AES HİBRİT ŞİFRELEME-ÇÖZME

Build requirements

• Visual Studio 2017
• .NET Framework 4.5

Features

• Asynchronous (You can use async/await)
• RSA-AES Hybrid Encryption-Decryption (My Algorithm)
• RSA Encryption-Decryption (1024 Bit, 2048 Bit, 4096 Bit)
• AES Encryption-Decryption (128 Bit, 256 Bit)
• Diffie–Hellman Key Exchange

Examples

RSA-AES Hybrid Encryption-Decryption

• string or byte[]

string publicKey = RsaAesHybrit.Instance.ToXmlString(false);
string privateKey = RsaAesHybrit.Instance.ToXmlString(true);

byte[] data = Encoding.UTF8.GetBytes("KEMAL");
byte[] encrypted = await RsaAesHybrit.Instance.EncryptAsync(data);
byte[] decrypted = await RsaAesHybrit.Instance.DecryptAsync(encrypted);

• File

string testSourceFileName = "Kriptografi.exe";
string targetFileNameEnc = "Kriptografi_encrypted.enc";
string targetFileNameDec = "Kriptografi_decrypted.exe";
await RsaAesHybrit.Instance.EncryptAsync(testSourceFileName, targetFileNameEnc);
await RsaAesHybrit.Instance.DecryptAsync(targetFileNameEnc, targetFileNameDec);

AES-256 Bit Encryption-Decryption

• byte[]

AES aes = new AES();
byte[] data = Encoding.UTF8.GetBytes(metin);
byte[] encrypted = await aes.ProcessAsync(data, AES.Cryptor.Encrypt);
byte[] decrypted = await aes.ProcessAsync(sifrele, AES.Cryptor.Decrypt);

Console.WriteLine("Key: {0}", Convert.ToBase64String(aes.Key));
Console.WriteLine("IV: {0}", Convert.ToBase64String(aes.IV));

• File

string testSourceFileName = "Kriptografi.exe";
string targetFileNameEnc = "Kriptografi_encrypted.enc";
string targetFileNameDec = "Kriptografi_decrypted.exe";
AES aes = new AES();
await aes.ProcessAsync(testSourceFileName, targetFileNameEnc, AES.Cryptor.Encrypt);
await aes.ProcessAsync(targetFileNameEnc, targetFileNameDec, AES.Cryptor.Decrypt);

Diffie–Hellman Key Exchange

using (var bob = new DiffieHellman())
using (var alice = new DiffieHellman())
{
	Console.WriteLine("Bob Private Key: {0}\n", Convert.ToBase64String(bob.PrivateKey));
	Console.WriteLine("Alice Private Key: {0}\n", Convert.ToBase64String(alice.PrivateKey));

	Console.WriteLine("Bob IV: {0}\n", Convert.ToBase64String(bob.AesIV));
	Console.WriteLine("Alice IV: {0}\n", Convert.ToBase64String(alice.AesIV));
				
	byte[] data = Encoding.UTF8.GetBytes("{ KeMaL; }");

	// Bob uses Alice's public key to encrypt his data.
	byte[] secretData = await bob.EncryptAsync(alice.PublicKey, data);

	// Alice uses Bob's public key and IV to decrypt the secret data.
	byte[] decryptedData = await alice.DecryptAsync(bob.PublicKey, secretData, bob.AesIV);
}