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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
In this kata, the key is only used once, and then replaced by the decoded text. (c) HerrWert
example:
message: my secret code i want to secure
key: pa ssword myse c retc od eiwant