PHP Conference Nagoya 2025

    sodium_crypto_sign_secretkey

    (PHP 7 >= 7.2.0, PHP 8)

    sodium_crypto_sign_secretkey — Extract the Ed25519 secret key from a keypair

    Description

    sodium_crypto_sign_secretkey(#[\SensitiveParameter] string $key_pair): string

    Extract the Ed25519 secret key from a keypair

    Parameters

    key_pair

    Ed25519 keypair (see: sodium_crypto_sign_keypair())

    Return Values

    Ed25519 secret key

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