ActiveSupport::MessageEncryptor

    # File lib/active_support/message_encryptor.rb, line 16
16:     def initialize(secret, cipher = 'aes-256-cbc')
17:       @secret = secret
18:       @cipher = cipher
19:     end

    # File lib/active_support/message_encryptor.rb, line 36
36:     def decrypt(encrypted_message)
37:       cipher = new_cipher
38:       encrypted_data, iv = encrypted_message.split("--").map {|v| ActiveSupport::Base64.decode64(v)}
39: 
40:       cipher.decrypt
41:       cipher.key = @secret
42:       cipher.iv  = iv
43: 
44:       decrypted_data = cipher.update(encrypted_data)
45:       decrypted_data << cipher.final
46: 
47:       Marshal.load(decrypted_data)
48:     rescue OpenSSLCipherError, TypeError
49:       raise InvalidMessage
50:     end

    # File lib/active_support/message_encryptor.rb, line 56
56:     def decrypt_and_verify(value)
57:       decrypt(verifier.verify(value))
58:     end

    # File lib/active_support/message_encryptor.rb, line 21
21:     def encrypt(value)
22:       cipher = new_cipher
23:       # Rely on OpenSSL for the initialization vector
24:       iv = cipher.random_iv
25: 
26:       cipher.encrypt
27:       cipher.key = @secret
28:       cipher.iv  = iv
29: 
30:       encrypted_data = cipher.update(Marshal.dump(value))
31:       encrypted_data << cipher.final
32: 
33:       [encrypted_data, iv].map {|v| ActiveSupport::Base64.encode64s(v)}.join("--")
34:     end

    # File lib/active_support/message_encryptor.rb, line 52
52:     def encrypt_and_sign(value)
53:       verifier.generate(encrypt(value))
54:     end

    # File lib/active_support/message_encryptor.rb, line 63
63:       def new_cipher
64:         OpenSSL::Cipher::Cipher.new(@cipher)
65:       end

    # File lib/active_support/message_encryptor.rb, line 67
67:       def verifier
68:         MessageVerifier.new(@secret)
69:       end