The original ccTalk protocol did not use any kind of encryption. It was thought that the security in a serial interface was so much better than a parallel one that no. The ccTalk protocol is used to transfer information and commands to various money processing device, including coin/bill acceptors and coin. The OSI 7-layer network model is of limited use for a simple control protocol such as cctalk. Whereas the task of writing software for full-blown networking.

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Some have individual inputs to enable each coin or bill channel. The protocol specifications are freely available from NAMA.

Tags ccTalk ccSniff ccParse. InDES encryption was added to certain commands so that it could protoocl made more resilient against attacks on the bus. I couldn’t find any open source ccTalk sniffer out there to decode ccTalk frames properly, so I created two tools, one that can be used to sniff a ccTalk bus and show live packets and an other that is used to parse sniffed data and display frames in a nice curses interface.

ccTalk – Part 1 : The protocol — Balda’s place

By continuing to use this website, you agree to their use. Sign up using Email and Password. The ccTalk protocol is a byte-oriented protocol. If you design a simple low security toy machine the most suited will be one the first four protocols: Write logFileLine ; this.


To find out more, including how to control cookies, see here: You are commenting using your WordPress. Post as a guest Name. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Sep 2 ’14 at I’ve been working with the cctalm libraries provided from the supplier which I can use in Chowever i cctalj to see if its possible Find and USE a C Function equivalent to the cctalk protocol and if possible use it directly into my C code.

Serial pulse protocol

Is a variant of parallel pulse protocol where a the outputs are valid only on the edge of a clock linethis allow using combinations to represent the bill channel so 16 bills can be signaled using 4 data cxtalk and a clock line. Stack Overflow works best with JavaScript enabled.

Learn how your comment data is processed. If you use protocil the individual enable inputs you will have a large data buswith large connectors.

This follows the talk I made at Defcon this year slides here: This library is able to parse packets as well as generate new ones using few lines of code: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The latter affords the protocol a good deal of popularity in a crowded and highly competitive field similar to open-source software. Open serial port Generate the message to be sent, calculate checksum Write the message on the serial interface Listen for the answer if any.


Peripherals such as the currency detectors for coins and banknotes found in a diverse range of automatic payment equipment such as transportation, ticketing, payphones, amusement machines, and retail cash management use ccTalk to talk to the host controller.

Keep in mindany trustworthy producer will have some ccTalk version of his product. The issue code is assigned to different issue dates or special mint variations of the same coin. The series pritocol bytes in a message — represented above as a series of decimal numbers — is transmitted as 8-N Proyocol required Address never made public.

Balda’s place

Retrieved from ” https: The header field is the actual command sent to the device, it contains a single byte representing the action that must be taken by the destination device. This site uses cookies.

The header 5 is used as a NAK response. Each peripheral on the ccTalk bus must have a unique address. MRodrigues 1, 13 You are commenting using your Facebook account. Any comments are welcome, just write me a mail: