Class: Relish::EncryptionHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/relish/encryption_helper.rb

Instance Method Summary collapse

Constructor Details

#initialize(static_secret, secrets) ⇒ EncryptionHelper

Returns a new instance of EncryptionHelper.



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# File 'lib/relish/encryption_helper.rb', line 10

def initialize(static_secret, secrets)
  @static_secret = static_secret
  @secrets = secrets
end

Instance Method Details

#decrypt(key, token) ⇒ Object

Raises:



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# File 'lib/relish/encryption_helper.rb', line 21

def decrypt(key, token)
  hmac_secrets.each do |secret|
    if verifier = verifier(secret, token)
      return verifier.data[key] if verifier.valid?
    end
  end
  raise RelishDecryptionFailed
end

#encrypt(key, value) ⇒ Object 



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# File 'lib/relish/encryption_helper.rb', line 15

def encrypt(key, value)
  Fernet::Legacy.generate(hmac_secrets.first) do |gen|
    gen.data = {key => value}
  end
end

#inspect ⇒ Object Also known as: to_s 



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# File 'lib/relish/encryption_helper.rb', line 37

def inspect
  "#<Relish::EncryptionHelper>"
end

#upgrade(key, token) ⇒ Object

Raises:



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# File 'lib/relish/encryption_helper.rb', line 30

def upgrade(key, token)
  if verifier = verifier(hmac_secrets.first, token)
    return encrypt(key, verifier.data[key]) if verifier.valid?
  end
  raise RelishDecryptionFailed
end