public static function ParagonIE_Sodium_Compat::crypto_sign_open in Automatic Updates 7

Same name and namespace in other branches

1. 8 vendor/paragonie/sodium_compat/src/Compat.php \ParagonIE_Sodium_Compat::crypto_sign_open()

Validates a signed message then returns the message.

@psalm-suppress MixedArgument @psalm-suppress MixedInferredReturnType @psalm-suppress MixedReturnStatement

Parameters

string $signedMessage A signed message:

string $publicKey A public key:

Return value

string The original message (if the signature is valid for this public key)

Throws

SodiumException

TypeError

2 calls to ParagonIE_Sodium_Compat::crypto_sign_open()

php72compat.php in vendor/paragonie/sodium_compat/lib/php72compat.php

sodium_compat.php in vendor/paragonie/sodium_compat/lib/sodium_compat.php

File

vendor/paragonie/sodium_compat/src/Compat.php, line 2606

Class

ParagonIE_Sodium_Compat

Code

public static function crypto_sign_open($signedMessage, $publicKey) {

  /* Type checks: */
  ParagonIE_Sodium_Core_Util::declareScalarType($signedMessage, 'string', 1);
  ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);

  /* Input validation: */
  if (ParagonIE_Sodium_Core_Util::strlen($signedMessage) < self::CRYPTO_SIGN_BYTES) {
    throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_BYTES long.');
  }
  if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
    throw new SodiumException('Argument 2 must be CRYPTO_SIGN_PUBLICKEYBYTES long.');
  }
  if (self::useNewSodiumAPI()) {

    /**
     * @psalm-suppress InvalidReturnStatement
     * @psalm-suppress FalsableReturnStatement
     */
    return sodium_crypto_sign_open($signedMessage, $publicKey);
  }
  if (self::use_fallback('crypto_sign_open')) {
    return call_user_func('\\Sodium\\crypto_sign_open', $signedMessage, $publicKey);
  }
  if (PHP_INT_SIZE === 4) {
    return ParagonIE_Sodium_Crypto32::sign_open($signedMessage, $publicKey);
  }
  return ParagonIE_Sodium_Crypto::sign_open($signedMessage, $publicKey);
}