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<sodium_crypto_signsodium_crypto_sign_ed25519_pk_to_curve25519>
^Sodium FunctionsLast updated: Mon, 26 Oct 2026

sodium_crypto_sign_detached

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_sign_detached — Sign the message

Description

function sodium_crypto_sign_detached(string $message, #[\SensitiveParameter] string $secret_key): string

Sign a message with a secret key, that can be verified by the corresponding public key. This function returns a detached signature.

Parameters

message

Message to sign.

secret_key

Secret key. See sodium_crypto_sign_secretkey()

Return Values

Cryptographic signature.


<sodium_crypto_signsodium_crypto_sign_ed25519_pk_to_curve25519>
^Sodium FunctionsLast updated: Mon, 26 Oct 2026