CryptoSys PKI Pro Manual

Cipher.EncryptAEAD(Byte[], Byte[], Byte[], Byte[], AeadAlgorithm, Cipher.Opts) Method

Encrypt data using the AES-GCM authenticated encryption algorithm with AAD and options.

Syntax

[C#]
public static byte[] EncryptAEAD(
   byte[] input,
   byte[] key,
   byte[] iv,
   byte[] aad,
   AeadAlgorithm aeadAlg,
   Cipher.Opts opts 
)
[VB]
Public Shared Function EncryptAEAD (
   input As Byte(),
   key As Byte(),
   iv As Byte(),
   aad As Byte(),
   aeadAlg As AeadAlgorithm,
   opts As Cipher.Opts 
) As Byte()

Parameters

input  Byte
Input data to be encrypted.
key  Byte
Key of exact length for algorithm (16, 24 or 32 bytes).
iv  Byte
Initialization Vector (IV) (aka nonce) exactly 12 bytes long.
aad  Byte
Additional authenticated data (optional) - set as null to ignore.
aeadAlg  AeadAlgorithm
Authenticated encryption algorithm.
opts  Cipher.Opts
Advanced options. Use Cipher.Opts.PrefixIV to prepend the 12-byte IV to the output

Return Value

Byte
Ciphertext with tag appended in a byte array, or empty array on error.

Remarks

The output will either be exactly 16 bytes longer than the input, or exactly 28 bytes longer if Cipher.Opts.PrefixIV is used.

See Also

VB6/C equivalent: CIPHER_EncryptAEAD

[Contents] [Index]

[PREV: Cipher.EncryptAEAD(Byte, Byte, Byte, AeadAlgorithm) Method...]   [Contents]   [Index]   
   [NEXT: Cipher.FileDecrypt(String, String, Byte, Byte, CipherAlgorithm, Mode, Padding, Cipher.Opts) Method...]

Copyright © 2004-26 D.I. Management Services Pty Ltd t/a CryptoSys. All rights reserved. Generated 2026-09-21T05:59:39Z.