PHP Manual
Sodium Functions
Generate a random ChaCha20-Poly1305 key.

sodium_crypto_aead_chacha20poly1305_keygen

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_aead_chacha20poly1305_keygen — Generate a random ChaCha20-Poly1305 key.

Description

sodium_crypto_aead_chacha20poly1305_keygen(): string

Generate a random key for use with sodium_crypto_aead_chacha20poly1305_encrypt() and sodium_crypto_aead_chacha20poly1305_decrypt().

Parameters

This function has no parameters.

Return Values

Returns a 256-bit random key.

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