sodium_crypto_sign_open

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_sign_open — Check that the signed message has a valid signature

Description

sodium_crypto_sign_open(string $signed_message, string $public_key): string|false

Verify the signature attached to a message and return the message

Parameters

signed_message
A message signed with sodium_crypto_sign()
public_key
An Ed25519 public key

Return Values

Returns the original signed message on success, or false on failure.