public static function ParagonIE_Sodium_Compat::crypto_generichash_final in Automatic Updates 8

Same name and namespace in other branches

1. 7 vendor/paragonie/sodium_compat/src/Compat.php \ParagonIE_Sodium_Compat::crypto_generichash_final()

Get the final BLAKE2b hash output for a given context.

@psalm-suppress MixedArgument @psalm-suppress ReferenceConstraintViolation @psalm-suppress ConflictingReferenceConstraint

Parameters

string $ctx BLAKE2 hashing context. Generated by crypto_generichash_init().:

int $length Hash output size.:

Return value

string Final BLAKE2b hash.

Throws

SodiumException

TypeError

6 calls to ParagonIE_Sodium_Compat::crypto_generichash_final()

ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key in vendor/paragonie/sodium_compat/src/Compat.php

ParagonIE_Sodium_Compat::crypto_kx_client_session_keys in vendor/paragonie/sodium_compat/src/Compat.php

ParagonIE_Sodium_Compat::crypto_kx_server_session_keys in vendor/paragonie/sodium_compat/src/Compat.php

ParagonIE_Sodium_File::generichash in vendor/paragonie/sodium_compat/src/File.php

Calculate the BLAKE2b hash of a file.

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

... See full list

File

vendor/paragonie/sodium_compat/src/Compat.php, line 1440

Class

ParagonIE_Sodium_Compat

Code

public static function crypto_generichash_final(&$ctx, $length = self::CRYPTO_GENERICHASH_BYTES) {

  /* Type checks: */
  ParagonIE_Sodium_Core_Util::declareScalarType($ctx, 'string', 1);
  ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
  if (self::useNewSodiumAPI()) {
    return sodium_crypto_generichash_final($ctx, $length);
  }
  if (self::use_fallback('crypto_generichash_final')) {
    $func = '\\Sodium\\crypto_generichash_final';
    return (string) $func($ctx, $length);
  }
  if ($length < 1) {
    try {
      self::memzero($ctx);
    } catch (SodiumException $ex) {
      unset($ctx);
    }
    return '';
  }
  if (PHP_INT_SIZE === 4) {
    $result = ParagonIE_Sodium_Crypto32::generichash_final($ctx, $length);
  }
  else {
    $result = ParagonIE_Sodium_Crypto::generichash_final($ctx, $length);
  }
  try {
    self::memzero($ctx);
  } catch (SodiumException $ex) {
    unset($ctx);
  }
  return $result;
}