I am trying to decrypt a string which has been encrypted in my rails project. This is how I am encrypting the data:
# Ref: http://www.monkeyandcrow.com/blog/reading_rails_how_does_message_encryptor_work/ secret = Rails.configuration.miscconfig['encryption_key'] salt = Rails.configuration.miscconfig['encryption_salt'] key = ActiveSupport::KeyGenerator.new(secret).generate_key(salt, 32) crypt = ActiveSupport::MessageEncryptor.new(key) encrypted_data = crypt.encrypt_and_sign(text_To_encrypt) encrypted_data end
I am able to decrypt using decrypt_and_verify, but I want to decrypt it manually using openssl. How do I do that. I tried doing the following command:
echo “<encrypted_message>”|openssl enc -d -aes-256-cbc -a -salt
This encrypted message is the first part of the “encrypted_data” from the above code. This doesn’t include the IV. It didn’t work, so I tried giving the entire encrypted_data, which didn’t work as well. After giving the password, it shows “bad magic number”. I don’t understand what I am doing wrong. Can someone please give me a push in the right direction.