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.

Namespace:  Rebex.Security.Cryptography
Assembly:  Rebex.Common (in Rebex.Common.dll)

Syntax

Visual Basic
Public Sub Encrypt ( _
	nonce As Byte(), _
	plaintext As Byte(), _
	ciphertext As Byte(), _
	authTag As Byte(), _
	additionalAuthData As Byte() _
)
C#
public void Encrypt(
	byte[] nonce,
	byte[] plaintext,
	byte[] ciphertext,
	byte[] authTag,
	byte[] additionalAuthData
)

Parameters

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

Examples

 Copy imageCopy Code
            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.
            
            }

Version Information

.NET Compact Framework

Supported in: 3.9, 3.5

See Also