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Methods
B

Constants

BASE32_ALPHABET = ("0".."9").to_a + ("A".."Z").to_a - ["I", "L", "O", "U"]
 
BASE36_ALPHABET = ("0".."9").to_a + ("a".."z").to_a
 
BASE58_ALPHABET = ("0".."9").to_a + ("A".."Z").to_a + ("a".."z").to_a - ["0", "O", "I", "l"]
 

Class Public methods

base32(n = 16)

SecureRandom.base32 generates a random Crockford base32 string in uppercase.

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 case-insensitive key that’s unambiguous to humans is necessary.

The result may contain alphanumeric characters in uppercase except I, L, O, and U.

p SecureRandom.base32 # => "PAK1NG78CM1HJ44A"
p SecureRandom.base32(24) # => "BN9EAB8RG9BNTTC9BX7P5JGJ"

Source: show | on GitHub 

# File activesupport/lib/active_support/core_ext/securerandom.rb, line 50
def self.base32(n = 16)
  alphanumeric(n, chars: BASE32_ALPHABET)
end

base36(n = 16)

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"

Source: show | on GitHub 

# File activesupport/lib/active_support/core_ext/securerandom.rb, line 35
def self.base36(n = 16)
  alphanumeric(n, chars: BASE36_ALPHABET)
end

base58(n = 16)

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"

Source: show | on GitHub 

# File activesupport/lib/active_support/core_ext/securerandom.rb, line 20
def self.base58(n = 16)
  alphanumeric(n, chars: BASE58_ALPHABET)
end