Module: SecureRandom
- Defined in:
- activesupport/lib/active_support/core_ext/securerandom.rb
Constant Summary collapse
- BASE58_ALPHABET =
("0".."9").to_a + ("A".."Z").to_a + ("a".."z").to_a - ["0", "O", "I", "l"]
- BASE36_ALPHABET =
("0".."9").to_a + ("a".."z").to_a
Class Method Summary collapse
-
.base36(n = 16) ⇒ Object
SecureRandom.base36 generates a random base36 string in lowercase.
-
.base58(n = 16) ⇒ Object
SecureRandom.base58 generates a random base58 string.
Class Method Details
.base36(n = 16) ⇒ Object
SecureRandom.base36 generates a random base36 string in lowercase.
The argument n specifies the length of the random string to be generated.
If n is not specified or is nil
, 16 is assumed. It may be larger in the future. This method can be used over base58
if a deterministic case key is necessary.
The result will contain alphanumeric characters in lowercase.
p SecureRandom.base36 # => "4kugl2pdqmscqtje"
p SecureRandom.base36(24) # => "77tmhrhjfvfdwodq8w7ev2m7"
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# File 'activesupport/lib/active_support/core_ext/securerandom.rb', line 38 def self.base36(n = 16) SecureRandom.random_bytes(n).unpack("C*").map do |byte| idx = byte % 64 idx = SecureRandom.random_number(36) if idx >= 36 BASE36_ALPHABET[idx] end.join end |
.base58(n = 16) ⇒ Object
SecureRandom.base58 generates a random base58 string.
The argument n specifies the length of the random string to be generated.
If n is not specified or is nil
, 16 is assumed. It may be larger in the future.
The result may contain alphanumeric characters except 0, O, I and l.
p SecureRandom.base58 # => "4kUgL2pdQMSCQtjE"
p SecureRandom.base58(24) # => "77TMHrHJFvFDwodq8w7Ev2m7"
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# File 'activesupport/lib/active_support/core_ext/securerandom.rb', line 19 def self.base58(n = 16) SecureRandom.random_bytes(n).unpack("C*").map do |byte| idx = byte % 64 idx = SecureRandom.random_number(58) if idx >= 58 BASE58_ALPHABET[idx] end.join end |