sodium_crypto_sign_open

Function • Params and return types changed in PHP 8.0

Check that the signed message has a valid signature.

PHP 5
PHP 7.0-7.1
PHP 7.2
Added
PHP 7.3-7.4
PHP 8.0
Improved
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

sodium_crypto_sign_open Function synopsis

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

Parameters

$signed_message

Typestring

A message signed with sodium_crypto_sign

$public_key

Typestring

An Ed25519 public key

Return value

Typestring|false

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

Changes to the sodium_crypto_sign_open Function

PHP 8.0

  • Return type added: string|false
  • Parameter name of parameter #1 changed: $string to $signed_message
  • Parameter type added for parameter #1 ($signed_message): string
  • Parameter name of parameter #2 changed: $keypair to $public_key
  • Parameter type added for parameter #2 ($public_key): string
- sodium_crypto_sign_open($string, $keypair)
+ sodium_crypto_sign_open(string $signed_message, string $public_key): string|false

PHP 7.2

  • Function added

sodium_crypto_sign_open Function Availability

PHP VersionAvailability
PHP 8.5Future Release Yes
PHP 8.4Upcoming Release Yes
PHP 8.3Supported (Latest) Yes
PHP 8.2Supported Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported No
PHP 7.0Unsupported No
PHP 5.6Unsupported No
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No