sodium_crypto_box_secretkey
(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_box_secretkey — Extracts the secret key from a crypto_box keypair
Description
sodium_crypto_box_secretkey(string $key_pair): string
Given a keypair, fetch only the secret key.
Parameters
-
key_pair -
A keypair, such as one generated by sodium_crypto_box_keypair() or sodium_crypto_box_seed_keypair()
Return Values
X25519 secret key.
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https://www.php.net/manual/en/function.sodium-crypto-box-secretkey.php
