pfodCHAP (pfodCHAP.h)

http://www.forward.com.au/pfod/pfodParserLibraries/index.html -- pfodCHAP for Arduino, Parses commands of the form {cmd} hashcode or { cmd ` arg1`arg2 ... } hashcode or { cmd ~ arg1 ~ arg2 … } hashcode The args are optional. It supports challenge and response security, via a 128 bit secret password, which protects against unauthorized connections. Also each message from the pfodDevice has a encryption strength hash code added to it and the hash code of every incoming command is checked for validity. If any of these fail, the connection is closed. See Challenge and Response Security for Internet connected pfodDevices™ for the details of security provided by this library. This is a complete paser for ALL commands a pfodApp will send to a pfodDevice pfodCHAP adds about 2100 bytes to the program and uses about 400 bytes RAM