Sodium Functions
PHP Manual

sodium_crypto_sign_open

Check that the signed message has a valid signature

Description

stringfalse sodium_crypto_sign_open(string $signed_message, string $public_key)

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.