Class: Base58GMP
- Inherits:
-
Object
- Object
- Base58GMP
- Defined in:
- lib/base58_gmp.rb
Constant Summary collapse
- VERSION =
'1.0.0'
- ALPHABETS =
{ bitcoin: '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz', flickr: '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ', ripple: 'rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz', gmp: '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuv' }
- DEFAULT_ALPHABET =
:flickr
- GMP_ALPHABET =
:gmp
- BASE58_LENGTH_MD5 =
22
Class Method Summary collapse
- .alphabet_digits(alphabet) ⇒ Object
- .base58_to_integer(base58, alphabet = DEFAULT_ALPHABET) ⇒ Object (also: decode)
- .from_to(base58, from_alphabet, to_alphabet) ⇒ Object
- .integer_to_base58(integer, alphabet = DEFAULT_ALPHABET) ⇒ Object (also: encode)
- .md5_base58(data, alphabet = DEFAULT_ALPHABET, opts = {}) ⇒ Object (also: md5)
- .normalize_alphabet(alphabet) ⇒ Object
Class Method Details
.alphabet_digits(alphabet) ⇒ Object
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# File 'lib/base58_gmp.rb', line 62 def self.alphabet_digits(alphabet) alphabet = normalize_alphabet alphabet unless ALPHABETS.key? alphabet fail ArgumentError, "Alphabet is invalid: #{alphabet}" end return ALPHABETS[alphabet] end |
.base58_to_integer(base58, alphabet = DEFAULT_ALPHABET) ⇒ Object Also known as: decode
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# File 'lib/base58_gmp.rb', line 33 def self.base58_to_integer(base58, alphabet = DEFAULT_ALPHABET) unless base58.is_a? String fail ArgumentError, 'Base58 argument is not a string.' end unless normalize_alphabet(alphabet) == GMP_ALPHABET base58 = from_to(base58, alphabet, GMP_ALPHABET) end GMP::Z.new(base58, 58) end |
.from_to(base58, from_alphabet, to_alphabet) ⇒ Object
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# File 'lib/base58_gmp.rb', line 45 def self.from_to(base58, from_alphabet, to_alphabet) unless base58.is_a? String fail ArgumentError, 'Base58 argument is not a string.' end from_digits = alphabet_digits from_alphabet to_digits = alphabet_digits to_alphabet from_digits != to_digits \ ? base58.tr(from_digits, to_digits) \ : base58 end |
.integer_to_base58(integer, alphabet = DEFAULT_ALPHABET) ⇒ Object Also known as: encode
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# File 'lib/base58_gmp.rb', line 23 def self.integer_to_base58(integer, alphabet = DEFAULT_ALPHABET) base58 = integer.is_a?(GMP::Z) \ ? integer.to_s(58) \ : GMP::Z(integer).to_s(58) normalize_alphabet(alphabet) == GMP_ALPHABET \ ? base58 \ : from_to(base58, GMP_ALPHABET, alphabet) end |
.md5_base58(data, alphabet = DEFAULT_ALPHABET, opts = {}) ⇒ Object Also known as: md5
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# File 'lib/base58_gmp.rb', line 72 def self.md5_base58(data, alphabet = DEFAULT_ALPHABET, opts = {}) base58 = integer_to_base58(Digest::MD5.hexdigest(data).hex, alphabet) opts.key?(:pad) && opts[:pad] \ ? base58.rjust(BASE58_LENGTH_MD5, alphabet_digits(alphabet)[0]) \ : base58 end |
.normalize_alphabet(alphabet) ⇒ Object
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# File 'lib/base58_gmp.rb', line 58 def self.normalize_alphabet(alphabet) alphabet.to_sym.downcase end |