Sodium Functions
PHP Manual

sodium_crypto_box_keypair

Randomly generate a secret key and a corresponding public key

Description

string sodium_crypto_box_keypair()

Generates a secret key and a public key as one string.

To get the secret key out of this unified keypair string, see sodium_crypto_box_secretkey. To get the public key out of this unified keypair string, see sodium_crypto_box_publickey.

Parameters

This function has no parameters.

Return Values

One string containing both the X25519 secret key and corresponding X25519 public key.