random_bytes

random_bytes(n=nil)

Class Public methods

::random_bytes generates a random binary string.

The argument n specifies the length of the result string.

If n is not specified, 16 is assumed. It may be larger in future.

The result may contain any byte: âx00â - âxffâ.

p SecureRandom.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6"
p SecureRandom.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97"

If secure random number generator is not available, NotImplementedError is raised.

Links:

https://github.com/ruby/ruby/blob/3207af4cb841872176ad0ba5cc62f868b83ee769/lib/securerandom.rb#L56

doc_ruby_on_rails

2015-05-14 05:58:51

Comments

Popular Articles

random_bytes (PHP 7) Generates cryptographically secure pseudo-random bytes string random_bytes ( int $length )

Security\Random::bytes public bytes ([mixed $len]) Generates a random binary string The Random::bytes method returns a string and accepts as input an int representing the l

numpy.random.bytes() numpy.random.bytes(length) Return random bytes. Parameters: length : int Number of random bytes. Returns: out : str String of length length

CI_Security::get_random_bytes() get_random_bytes($length) Parameters: $length (int) – Output length Returns: A binary stream of random bytes or FALSE on failure Return type:

openssl_random_pseudo_bytes (PHP 5 >= 5.3.0, PHP 7) Generate a pseudo-random string of bytes string openssl_random_pseudo_b