diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-02-14 03:20:04 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-02-14 03:20:04 +0000 |
| commit | b1adbd14e5b197596636f927c03ff132299ab6b6 () | |
| tree | 587e44dc967e33e900c4d46fc3bd49697d79a718 /lib/securerandom.rb | |
| parent | 1f13a179d303c1470f3e76656d14d24cf035fff4 (diff) | |
random.c: rand_random_number
* random.c (rand_random_number): add a method to return a random number like SecureRandom to Random::Formatter. * lib/securerandom.rb (random_bytes): move to Random::Formatter, the base method of the module. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | lib/securerandom.rb | 47 |
1 files changed, 27 insertions, 20 deletions
@@ -47,26 +47,6 @@ end # module SecureRandom - - # SecureRandom.random_bytes generates a random binary string. - # - # The argument _n_ specifies the length of the result string. - # - # If _n_ is not specified or is nil, 16 is assumed. - # It may be larger in future. - # - # The result may contain any byte: "\x00" - "\xff". - # - # p SecureRandom.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6" - # p SecureRandom.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97" - # - # If a secure random number generator is not available, - # +NotImplementedError+ is raised. - def self.random_bytes(n=nil) - n = n ? n.to_int : 16 - gen_random(n) - end - if defined? OpenSSL::Random def self.gen_random(n) @pid = 0 unless defined?(@pid) @@ -94,6 +74,26 @@ module SecureRandom end module Random::Formatter # SecureRandom.hex generates a random hexadecimal string. # # The argument _n_ specifies the length, in bytes, of the random number to be generated. @@ -168,6 +168,7 @@ module Random::Formatter s end # SecureRandom.random_number generates a random number. # # If a positive integer is given as _n_, @@ -212,6 +213,7 @@ module Random::Formatter Math.ldexp(i64 >> (64-Float::MANT_DIG), -Float::MANT_DIG) end end # SecureRandom.uuid generates a random v4 UUID (Universally Unique IDentifier). # @@ -230,6 +232,11 @@ module Random::Formatter ary[3] = (ary[3] & 0x3fff) | 0x8000 "%08x-%04x-%04x-%04x-%04x%08x" % ary end end SecureRandom.extend(Random::Formatter) |