úÎ×å     The default key file.  Simply calls   . $Get a key from the given text file. MIf the file does not exist a random key will be generated and stored in that  file. File name where key is stored. The actual key.  Initializes a  from a random . It's  better to give a  with exactly 64 bytes, but , anything with at least 32 bytes will work. data key data          clientsession-0.7.1Web.ClientSessionIVKeyaesKeyhmacKeymkIVrandomIVdefaultKeyFile getDefaultKeygetKeyinitKey encryptIOencryptdecrypt randomBytes randomKeybytestring-0.9.2.0Data.ByteString.Internal ByteString