self.hex(n=nil) — ActiveSupport::SecureRandom

self.hex(n=nil)

SecureRandom.hex generates a random hex string.

The argument n specifies the length of the random length. The length of the result string is twice of n.

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

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

Parameters

Source

# File activesupport/lib/active_support/secure_random.rb, line 137
      def self.hex(n=nil)
        random_bytes(n).unpack("H*")[0]
      end

Defined in activesupport/lib/active_support/secure_random.rb line 137 · View on GitHub · Improve this page · Find usages on GitHub