Better support legacy DES customers #1671
Merged
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Issues:
Addresses CryptoAlg-2421
Description of changes:
No one should start using these DES functions, or continue using DES in general. However, for legacy customers that can't change this PR adds a few small utility functions and aligns AWS-LC with the behavior they expect from OpenSSL.
Call-outs:
I updated DES_set_key to perform the same checks as OpenSSL and updated internal usages to use DES_set_key_unchecked.
Testing:
Added new tests and ensured existing tests still pass.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.