public static function ParagonIE_Sodium_Compat::randombytes_buf in Automatic Updates 7

Same name and namespace in other branches

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

Generate a string of bytes from the kernel's CSPRNG. Proudly uses /dev/urandom (if getrandom(2) is not available).

Parameters

int $numBytes:

Return value

string

Throws

Exception

TypeError

3 calls to ParagonIE_Sodium_Compat::randombytes_buf()

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

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 3393

Class

ParagonIE_Sodium_Compat

Code

public static function randombytes_buf($numBytes) {

  /* Type checks: */
  if (!is_int($numBytes)) {
    if (is_numeric($numBytes)) {
      $numBytes = (int) $numBytes;
    }
    else {
      throw new TypeError('Argument 1 must be an integer, ' . gettype($numBytes) . ' given.');
    }
  }
  if (self::use_fallback('randombytes_buf')) {
    return (string) call_user_func('\\Sodium\\randombytes_buf', $numBytes);
  }
  return random_bytes($numBytes);
}