Class: EllipticCurve::Utils::Binary

Inherits:
Object
  • Object
show all
Defined in:
lib/utils/binary.rb

Class Method Summary collapse

Class Method Details

.base64FromByteString(byteString) ⇒ Object 



31
32
33
 
# File 'lib/utils/binary.rb', line 31

def self.base64FromByteString(byteString)
    return Base64.encode64(byteString).gsub("\n", "")
end

.bitsFromHex(hexadecimal) ⇒ Object 



39
40
41
 
# File 'lib/utils/binary.rb', line 39

def self.bitsFromHex(hexadecimal)
    return intFromHex(hexadecimal).to_s(2).rjust(hexadecimal.length * 4, "0")
end

.byteStringFromBase64(base64) ⇒ Object 



35
36
37
 
# File 'lib/utils/binary.rb', line 35

def self.byteStringFromBase64(base64)
    return Base64.decode64(base64)
end

.byteStringFromHex(hexadecimal) ⇒ Object 



23
24
25
 
# File 'lib/utils/binary.rb', line 23

def self.byteStringFromHex(hexadecimal)
    return [hexadecimal].pack("H*")
end

.hexFromByteString(bytes) ⇒ Object 



19
20
21
 
# File 'lib/utils/binary.rb', line 19

def self.hexFromByteString(bytes)
    return bytes.unpack("H*")[0]
end

.hexFromInt(number) ⇒ Object 



7
8
9
10
11
12
13
 
# File 'lib/utils/binary.rb', line 7

def self.hexFromInt(number)
    hexadecimal = number.to_s(16)
    if hexadecimal.length % 2 == 1
        hexadecimal = "0" + hexadecimal
    end
    return hexadecimal
end

.intFromHex(hexadecimal) ⇒ Object 



15
16
17
 
# File 'lib/utils/binary.rb', line 15

def self.intFromHex(hexadecimal)
    return hexadecimal.to_i(16)
end

.numberFromByteString(bytes) ⇒ Object 



27
28
29
 
# File 'lib/utils/binary.rb', line 27

def self.numberFromByteString(bytes)
    return bytes.unpack("C*").reduce(0) { |number, byte| number * 256 + byte }
end