module Snapcat::Crypt
Constants
- CIPHER
- ENCRYPTION_KEY
Public Instance Methods
decrypt(data)
click to toggle source
# File lib/snapcat/crypt.rb, line 8 def decrypt(data) cipher = OpenSSL::Cipher.new(CIPHER) cipher.decrypt cipher.key = ENCRYPTION_KEY decrypted_data = '' data.bytes.each_slice(16) do |slice| decrypted_data += cipher.update(slice.map(&:chr).join) end decrypted_data += cipher.final end
encrypt(data)
click to toggle source
# File lib/snapcat/crypt.rb, line 21 def encrypt(data) cipher = OpenSSL::Cipher.new(CIPHER) cipher.encrypt cipher.key = ENCRYPTION_KEY cipher.update(pkcs5_pad(data)) + cipher.final end
Private Instance Methods
pkcs5_pad(data, blocksize = 16)
click to toggle source
# File lib/snapcat/crypt.rb, line 30 def pkcs5_pad(data, blocksize = 16) pad = blocksize - (data.length % blocksize) "#{data}#{pad.chr * pad}" end