sodium_crypto_aead_xchacha20poly1305_ietf_encrypt

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(Preferred) Encrypt then authenticate with XChaCha20-Poly1305

Beschreibung

sodium_crypto_aead_xchacha20poly1305_ietf_encrypt ( string $message , string $additional_data , string $nonce , string $key ) : string

Encrypt then authenticate with XChaCha20-Poly1305 (eXtended-nonce variant).

Generally, XChaCha20-Poly1305 is the best of the provided AEAD modes to use.

Parameter-Liste

message

The plaintext message to 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. 24 bytes long. This is a large enough bound to generate randomly (i.e. random_bytes()).

key

Encryption key (256-bit).

R├╝ckgabewerte

Returns the ciphertext and tag on success, Im Fehlerfall wird false zur├╝ckgegeben..

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