public static function ParagonIE_Sodium_Crypto32::generichash_init in Automatic Updates 7

Same name and namespace in other branches

1. 8 vendor/paragonie/sodium_compat/src/Crypto32.php \ParagonIE_Sodium_Crypto32::generichash_init()

Initialize a hashing context for BLAKE2b.

@internal Do not use this directly. Use ParagonIE_Sodium_Compat.

Parameters

string $key:

int $outputLength:

Return value

string

Throws

RangeException

SodiumException

TypeError

1 call to ParagonIE_Sodium_Crypto32::generichash_init()

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

Initialize a BLAKE2b hashing context, for use in a streaming interface.

File

vendor/paragonie/sodium_compat/src/Crypto32.php, line 760

Class

ParagonIE_Sodium_Crypto32

Class ParagonIE_Sodium_Crypto

Code

public static function generichash_init($key = '', $outputLength = 32) {

  // This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized
  ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor();
  $k = null;
  if (!empty($key)) {
    $k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key);
    if ($k
      ->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) {
      throw new RangeException('Invalid key size');
    }
  }

  /** @var SplFixedArray $ctx */
  $ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outputLength);
  return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($ctx);
}