Sha256: 251298d9dcda168bfdbee855a938203327a34509a18763867e08fda9b8bd7793
Contents?: true
Size: 740 Bytes
Versions: 23
Compression:
Stored size: 740 Bytes
Contents
# encoding: utf-8
require "openssl"
require "base64"
require "securerandom"
module Pokepay
class Crypto
def initialize(key)
@key = Base64.urlsafe_decode64(key).force_encoding("utf-8")
@cipher = OpenSSL::Cipher.new('AES-256-CBC')
end
def encrypt(plaintext)
enc = @cipher
enc.encrypt
enc.key = @key
enc.padding = 1
enc.iv = SecureRandom.random_bytes(16)
enc.update('0'*16 + plaintext) + enc.final
end
def decrypt(ciphertext)
dec = @cipher
dec.decrypt
dec.key = @key
dec.iv = ciphertext.byteslice(0,16)
decrypted_text = dec.update(ciphertext) + dec.final
decrypted_text.byteslice(16, decrypted_text.bytesize - 16)
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems