ChaCha20Poly1305.Encrypt Method

Namespace: Rebex.Security.Cryptography

Assembly: Rebex.Security.dll (version 7.0.9119)

Encrypt(Byte[], Byte[], Byte[], Byte[], Byte[])

Encrypts plaintext using the secret key and nonce, stores the result to the ciphertext and authenticates resulting ciphertext with optional additionalAuthData and stores the authentication tag to the authTag.

Declaration

public void Encrypt(byte[] nonce, byte[] plaintext, byte[] ciphertext, byte[] authTag, byte[] additionalAuthData = null)

Parameters

Type	Name	Description
Byte[]	nonce	The 12-byte nonce.
Byte[]	plaintext	The byte array that contains plain text that will be encrypted.
Byte[]	ciphertext	The byte array in which the resulting cipher text will be stored.
Byte[]	authTag	The 16-byte array in which generated authentication tag will be stored.
Byte[]	additionalAuthData	Optional (can be null) byte array that contains additional authenticated data (AAD). Same additional authenticated data must be provided when ciphertext is decrypted.

Examples

using (var chacha20Poly1305 = new ChaCha20Poly1305(key))
{
   //Encrypt data.
   chacha20Poly1305.Encrypt(nonce, plainText, cipherText, authTag, aaaData);
   //After a successful call cipherText contains encrypted data and authTag contains authentication tag.

}