class ComplexConfig::Provider

def decrypt_data(ciphertext, pathname = nil)

Returns:

(String, nil) - the decrypted plain text, or nil if no valid key was found

Parameters:

pathname (String, nil) -- an optional path used to locate a key file (e.g., .key)
ciphertext (String) -- the encrypted data to decrypt

def decrypt_data(ciphertext, pathname = nil)
  ks = key_source(pathname)
  return nil unless ks && ks.key
  ComplexConfig::Encryption.new(ks.key_bytes).decrypt(ciphertext)
end