Simplify SetECDsaPublicKey and padd with leading zeros

[mrsuciu]

Proposed changes

Simplify SetECDsaPublicKey and pad with leading zeros the public key point coordinates to avoid cases where they are reported as being of different size.

Related Issues

• Fixes #

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.43%. Comparing base (a2f761e) to head (4e1df43).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2962      +/-   ##
==========================================
- Coverage   55.43%   55.43%   -0.01%     
==========================================
  Files         352      352              
  Lines       67858    67859       +1     
  Branches    13908    13908              
==========================================
  Hits        37616    37616              
+ Misses      26115    26112       -3     
- Partials     4127     4131       +4     

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[romanett]

Fixes previously failing test using this method with ECC Public Key.

Maybe also set hash algorithm size:

SetECCurve(m_ecdsaPublicKey.ExportParameters(false).Curve);