Rails Encrypt and decript a key encoding in rails or decoding in rails ruby on rails encrypt decrypt

 Create This model in your Model directory : where ever you want to use just include PublicAccessViewHelper

and call encrypt and decrypt method for encryption code and decrypting secret key

require 'openssl'require 'base64'require 'addressable/uri'require 'uri'

module PublicAccessViewHelper
    def self.included(base)
      base.extend self    end
    def cipher 

 OpenSSL::Cipher::Cipher.new('aes-256-cbc')  # ('aes-256-cbc')    end
    def cipher_key      '@!\xF\xCD\x\x18d\xFD\xFx91\xD4\x03\x92ym\x8F\xD3\x807\xC3\98\xE0\x8E\x8F\xD5T$T\x1CAF\x1Fc\tZE\xE0\x04\xD5\xD7|(J\x8B\xE14\x03S\xF3\xE2y\\X\x9E'    end
    def decrypt(encrypted_data)
=begin      c = cipher.decrypt      c.key = Digest::SHA256.digest(cipher_key)      URI.encode(c.update(Base64.decode64(value.to_s)) + c.final)
=end      # URI.decode(value)      # salt  = SecureRandom.random_bytes(64)      # key   = ActiveSupport::KeyGenerator.new('password').generate_key(salt) # => "\x89\xE0\x156\xAC..."      crypt = ActiveSupport::MessageEncryptor.new(cipher_key)
      crypt.decrypt_and_verify(encrypted_data)
    end
    def encrypt(secret_data)
      crypt = ActiveSupport::MessageEncryptor.new(cipher_key)
      encrypted_data = crypt.encrypt_and_sign(secret_data)
      return encrypted_data=begin      c = cipher.encrypt      c.key = Digest::SHA256.digest(cipher_key)      URI.encode(Base64.encode64(c.update(value.to_s) + c.final))      URI.encode(value)=end    end
    def encrypt_url(value)
      c = cipher.encrypt
      c.key = Digest::SHA256.digest(cipher_key)
      Base64.encode64(c.update(value.to_s) + c.final)
    end
end