!!! Overview
[{$pagename}] is the process of replacing existing [Keys]


!! Why [{$pagename}]
* Encryption stales - Sometimes it’s just a matter of time (DES was awesome in 1977. Now, not so much). So if your encryption algorithm can be broken in N years, you probably want to rotate it in some period smaller than N, no?
And yeah, N isn’t necessarily “heat death of the universe” because you’re using 4096-bit keys. Things change — key leaks, quantum encryption, NSA loopholes, whatever. The safe thing to do is just rotate your signing key — and, potentially, the algorithm too !— every so often (••)
* Keys Leak - It happens, and for a host of reasons including state-actors. In either case, keys do leak. The safe thing to do is rotate your [encryption] key every so often, so that when keys do get compromised, the amount of data that you lost isn’t, well, Everything.
* Straight up attacks. For many (most?) encryption algorithms, the more data you gather, the easier it is to break. A prominent example is AES GSM, that loses it’s protection-fu if more than 64GB of data is encrypted with the same key 

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Why Key Rotation|https://medium.com/@dieswaytoofast/why-key-rotation-f374c71b9c6f|target='_blank'] - based on information obtained 2018-10-14-