101 incorrect decryption logic for authentication

[dccutrig]

Commented out two tests for now that are failing, but need to track down the root cause - don't believe it's directly related to this issue so planned to leave them commented out here in this PR.

[codecov-commenter]

Codecov Report

Merging #102 (267ac6b) into dev (c2e9408) will increase coverage by 0.30%.
The diff coverage is 86.36%.

@@            Coverage Diff             @@
##              dev     #102      +/-   ##
==========================================
+ Coverage   82.49%   82.79%   +0.30%     
==========================================
  Files          19       19              
  Lines        5188     5296     +108     
==========================================
+ Hits         4280     4385     +105     
- Misses        908      911       +3     

Impacted Files	Coverage Δ
util/src_util/ut_crypto.c	100.00% <ø> (ø)
...gcrypt/cryptography_interface_libgcrypt.template.c	83.37% <82.35%> (-0.03%)	⬇️
src/src_main/crypto_tc.c	91.09% <100.00%> (+0.04%)	⬆️
util/src_util/et_dt_validation.c	98.85% <100.00%> (+0.07%)	⬆️

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[IbraheemYSaleh]

See comments above.