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| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-04-26 15:47:24 +0000 |
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| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-04-26 15:47:24 +0000 |
| commit | 81f2f7b7cb7cdd93d2c7cd0d004e0fe978f38548 (patch) | |
| tree | 829c361a542aa2a097d82b4db0073293cb48bdad /lib/securerandom.rb | |
| parent | 4a3a6f8f6ccb0506e52cb49c91e56cf769a883c2 (diff) | |
| download | ruby-81f2f7b7cb7cdd93d2c7cd0d004e0fe978f38548.tar.gz ruby-81f2f7b7cb7cdd93d2c7cd0d004e0fe978f38548.tar.xz ruby-81f2f7b7cb7cdd93d2c7cd0d004e0fe978f38548.zip | |
update rdoc.
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@23297 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/securerandom.rb')
| -rw-r--r-- | lib/securerandom.rb | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/securerandom.rb b/lib/securerandom.rb index 1365c6656..4a97ff8a7 100644 --- a/lib/securerandom.rb +++ b/lib/securerandom.rb @@ -230,7 +230,11 @@ module SecureRandom # p SecureRandom.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594" # p SecureRandom.uuid #=> "62936e70-1815-439b-bf89-8492855a7e6b" # - # See RFC 4122 for UUID. + # The version 4 UUID is purely random (except the version). + # It doesn't contain meaningful information such as MAC address, time, etc. + # + # See RFC 4122 for details of UUID. + # def self.uuid ary = self.random_bytes(16).unpack("NnnnnN") ary[2] = (ary[2] & 0x0fff) | 0x4000 |