Perry E. Metzger wrote:
Yet another reason why you always should make the crypto algorithms you
use pluggable in any system -- you *will* have to replace them some day.

Ben Laurie wrote:
In order to roll out a new crypto algorithm, you have to roll out new
software. So, why is anything needed for "pluggability" beyond versioning?

New software has to work with new and old data files and communicate with new and old software.

Thus full protocol negotiation has to be built in to everything from the beginning - which was the insight behind COM and the cure to DLL hell.

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