Method: SecureRandom.hex
- Defined in:
- lib/securerandom.rb
.hex(n = nil) ⇒ Object
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.
The result may contain 0-9 and a-f.
p SecureRandom.hex #=> "eb693ec8252cd630102fd0d0fb7c3485"
p SecureRandom.hex #=> "91dc3bfb4de5b11d029d376634589b61"
If secure random number generator is not available, NotImplementedError is raised.
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# File 'lib/securerandom.rb', line 131 def self.hex(n=nil) random_bytes(n).unpack("H*")[0] end |