> For the complete documentation index, see [llms.txt](https://docs.xrpl-commons.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xrpl-commons.org/cyphered-chat-on-xrpl.md).

# Cyphered Chat on XRPL

This session will explore how to use the memo field present on every transaction on the XRP Ledger to send encrypted messages, effectively creating a chat engine.

While nothing is encrypted forever, we propose this activity to explore the basic principles of cryptography and using the memo field.