Gecko [ www.uxijen.com ]

Name	Size	Permission	Date
benchmark	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
bigdecimal	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
cgi	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
csv	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
did_you_mean	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
digest	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
drb	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
erb	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
error_highlight	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
fiddle	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
forwardable	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
io	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
json	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
logger	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
net	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
objspace	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
open3	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
openssl	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
optparse	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
psych	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
racc	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
random	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
reline	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
rinda	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
ripper	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
ruby_vm	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
set	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
syntax_suggest	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
syslog	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
unicode_normalize	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
uri	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
vendor_ruby	[ DIR ]	drwxr-xr-x	2025-08-20 14:36
yaml	[ DIR ]	drwxr-xr-x	2026-01-11 18:25
English.rb	6.11 KB	-rw-r--r--	2025-08-20 14:36
abbrev.rb	3.45 KB	-rw-r--r--	2025-08-20 14:36
base64.rb	3.35 KB	-rw-r--r--	2025-08-20 14:36
benchmark.rb	18.4 KB	-rw-r--r--	2025-08-20 14:36
bigdecimal.rb	24 B	-rw-r--r--	2025-08-20 14:36
cgi.rb	9.83 KB	-rw-r--r--	2025-08-20 14:36
coverage.rb	368 B	-rw-r--r--	2025-08-20 14:36
csv.rb	92.47 KB	-rw-r--r--	2025-08-20 14:36
date.rb	1.17 KB	-rw-r--r--	2025-08-20 14:36
delegate.rb	11.68 KB	-rw-r--r--	2025-08-20 14:36
did_you_mean.rb	5.31 KB	-rw-r--r--	2025-08-20 14:36
digest.rb	3.3 KB	-rw-r--r--	2025-08-20 14:36
drb.rb	50 B	-rw-r--r--	2025-08-20 14:36
erb.rb	14.57 KB	-rw-r--r--	2025-08-20 14:36
error_highlight.rb	84 B	-rw-r--r--	2025-08-20 14:36
expect.rb	2.19 KB	-rw-r--r--	2025-08-20 14:36
fiddle.rb	2.88 KB	-rw-r--r--	2025-08-20 14:36
fileutils.rb	79.02 KB	-rw-r--r--	2025-08-20 14:36
find.rb	2.5 KB	-rw-r--r--	2025-08-20 14:36
forwardable.rb	9.03 KB	-rw-r--r--	2025-08-20 14:36
getoptlong.rb	20.26 KB	-rw-r--r--	2025-08-20 14:36
ipaddr.rb	20.6 KB	-rw-r--r--	2025-08-20 14:36
json.rb	19.29 KB	-rw-r--r--	2025-08-20 14:36
kconv.rb	5.72 KB	-rw-r--r--	2025-08-20 14:36
logger.rb	21.95 KB	-rw-r--r--	2025-08-20 14:36
mkmf.rb	88.4 KB	-rw-r--r--	2025-08-20 14:36
monitor.rb	6.76 KB	-rw-r--r--	2025-08-20 14:36
mutex_m.rb	2.33 KB	-rw-r--r--	2025-08-20 14:36
objspace.rb	4.67 KB	-rw-r--r--	2025-08-20 14:36
observer.rb	6.38 KB	-rw-r--r--	2025-08-20 14:36
open-uri.rb	25.52 KB	-rw-r--r--	2025-08-20 14:36
open3.rb	22.11 KB	-rw-r--r--	2025-08-20 14:36
openssl.rb	1.03 KB	-rw-r--r--	2025-08-20 14:36
optionparser.rb	59 B	-rw-r--r--	2025-08-20 14:36
optparse.rb	61.06 KB	-rw-r--r--	2025-08-20 14:36
ostruct.rb	13.88 KB	-rw-r--r--	2025-08-20 14:36
pathname.rb	16.83 KB	-rw-r--r--	2025-08-20 14:36
pp.rb	17.22 KB	-rw-r--r--	2025-08-20 14:36
prettyprint.rb	15.9 KB	-rw-r--r--	2025-08-20 14:36
pstore.rb	20.52 KB	-rw-r--r--	2025-08-20 14:36
psych.rb	24.62 KB	-rw-r--r--	2025-08-20 14:36
racc.rb	137 B	-rw-r--r--	2025-08-20 14:36
readline.rb	189 B	-rw-r--r--	2025-08-20 14:36
reline.rb	17.75 KB	-rw-r--r--	2025-08-20 14:36
resolv-replace.rb	1.76 KB	-rw-r--r--	2025-08-20 14:36
resolv.rb	74.35 KB	-rw-r--r--	2025-08-20 14:36
ripper.rb	2.44 KB	-rw-r--r--	2025-08-20 14:36
securerandom.rb	2.11 KB	-rw-r--r--	2025-08-20 14:36
set.rb	25.31 KB	-rw-r--r--	2025-08-20 14:36
shellwords.rb	7.09 KB	-rw-r--r--	2025-08-20 14:36
singleton.rb	4.08 KB	-rw-r--r--	2025-08-20 14:36
socket.rb	43.72 KB	-rw-r--r--	2025-08-20 14:36
syntax_suggest.rb	74 B	-rw-r--r--	2025-08-20 14:36
tempfile.rb	13.84 KB	-rw-r--r--	2025-08-20 14:36
time.rb	23.72 KB	-rw-r--r--	2025-08-20 14:36
timeout.rb	5.83 KB	-rw-r--r--	2025-08-20 14:36
tmpdir.rb	4.7 KB	-rw-r--r--	2025-08-20 14:36
tsort.rb	14.26 KB	-rw-r--r--	2025-08-20 14:36
un.rb	11.17 KB	-rw-r--r--	2025-08-20 14:36
uri.rb	3.06 KB	-rw-r--r--	2025-08-20 14:36
weakref.rb	1.36 KB	-rw-r--r--	2025-08-20 14:36
yaml.rb	2.11 KB	-rw-r--r--	2025-08-20 14:36

Rename

# -*- coding: us-ascii -*-
# frozen_string_literal: true

require 'random/formatter'

# == Secure random number generator interface.
#
# This library is an interface to secure random number generators which are
# suitable for generating session keys in HTTP cookies, etc.
#
# You can use this library in your application by requiring it:
#
#   require 'securerandom'
#
# It supports the following secure random number generators:
#
# * openssl
# * /dev/urandom
# * Win32
#
# SecureRandom is extended by the Random::Formatter module which
# defines the following methods:
#
# * alphanumeric
# * base64
# * choose
# * gen_random
# * hex
# * rand
# * random_bytes
# * random_number
# * urlsafe_base64
# * uuid
#
# These methods are usable as class methods of SecureRandom such as
# +SecureRandom.hex+.
#
# If a secure random number generator is not available,
# +NotImplementedError+ is raised.

module SecureRandom
  class << self
    def bytes(n)
      return gen_random(n)
    end

private

def gen_random_openssl(n)
      @pid = 0 unless defined?(@pid)
      pid = $$
      unless @pid == pid
        now = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
        OpenSSL::Random.random_add([now, @pid, pid].join(""), 0.0)
        seed = Random.urandom(16)
        if (seed)
          OpenSSL::Random.random_add(seed, 16)
        end
        @pid = pid
      end
      return OpenSSL::Random.random_bytes(n)
    end

def gen_random_urandom(n)
      ret = Random.urandom(n)
      unless ret
        raise NotImplementedError, "No random device"
      end
      unless ret.length == n
        raise NotImplementedError, "Unexpected partial read from random device: only #{ret.length} for #{n} bytes"
      end
      ret
    end

begin
      # Check if Random.urandom is available
      Random.urandom(1)
      alias gen_random gen_random_urandom
    rescue RuntimeError
      begin
        require 'openssl'
      rescue NoMethodError
        raise NotImplementedError, "No random device"
      else
        alias gen_random gen_random_openssl
      end
    end

public :gen_random
  end
end

SecureRandom.extend(Random::Formatter)