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# <!-- rdoc-file=lib/securerandom.rb -->
# ## 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
extend Random::Formatter
def self.alphanumeric: (?Integer?) -> String
def self.base64: (?Integer?) -> String
def self.hex: (?Integer?) -> String
def self.random_bytes: (?Integer?) -> String
def self.random_number: () -> Float
| (Integer) -> Integer
| (Numeric) -> Numeric
def self.urlsafe_base64: (?Integer?, ?bool?) -> String
def self.uuid: () -> String
end
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