Sodium Functions
PHP Manual

sodium_crypto_box_seed_keypair

Deterministically derive the key pair from a single key

Description

string sodium_crypto_box_seed_keypair(#[\SensitiveParameter]string $seed)

Clamps the seed to form a secret key, derives the public key, and returns the two as a keypair.

The *_seed_keypair functions are ideal for generating a keypair from a password and salt. Use the result as a seed to generate the desired keys.

Parameters

seed

Some cryptographic input. Must be 32 bytes.

Return Values

X25519 Keypair (secret key and public key).