sodium_crypto_aead_aegis256_decrypt

(PHP 8 >= 8.4.0)

sodium_crypto_aead_aegis256_decrypt — Verify then decrypt a message with AEGIS-256

Description

sodium_crypto_aead_aegis256_decrypt(
    string $ciphertext,
    string $additional_data,
    string $nonce,
    #[\SensitiveParameter] string $key
): string|false

Verify then decrypt a message with AEGIS-256.

Parameters

ciphertext
Must be in the format provided by sodium_crypto_aead_aegis256_encrypt().
additional_data
Additional, authenticated data. This is used in the verification of the authentication tag appended to the ciphertext, but it is not encrypted or stored in the ciphertext.
nonce
A number that must be only used once, per message.
key
Encryption key (256-bit).

Return Values

Returns the plaintext on success, or false on failure.

See Also