> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/ibm-editran-v5.3-cics-en/utilities-and-codes/appendix-d.-cryptography-system-in-onesait-editran/exchanges-with-exchange-key-management.md).

# Exchanges with exchange key management

A free application has been created that allows automating the exchange of exchange or transport keys, whether DES or RSA (it requires having DES and RSA cryptography at both ends). Through this system, key exchanges are made secure (no one sees keys in plain text), reliable, and automated. In addition, it allows key changes without needing to change the Editran profiles. For more information, see[ Key manager](/documentacion-editran/ibm-editran-v5.3-cics-en/key-manager.md).


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