class DaFunk::SecureRandom
Constants
- CHARS
Public Class Methods
random_bytes(n = nil)
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# File lib/da_funk/secure_random.rb, line 5 def self.random_bytes(n = nil) n = n ? n.to_int : 16 (0...n).map { CHARS[rand(CHARS.length)] }.join end
uuid()
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# File lib/da_funk/secure_random.rb, line 10 def self.uuid bytes = random_bytes.unpack('NnnnnN') bytes[2] = (bytes[2] & 0x0fff) | 0x4000 bytes[3] = (bytes[3] & 0x3fff) | 0x8000 "%08x-%04x-%04x-%04x-%04x%08x" % bytes end