fix(crypto): properly implement block size limit

[vasild]

Summary

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #3154 into develop will increase coverage by 0.01%.
The diff coverage is 91.66%.

@@             Coverage Diff             @@
##           develop    #3154      +/-   ##
===========================================
+ Coverage    65.57%   65.58%   +0.01%     
===========================================
  Files          425      425              
  Lines        11917    11925       +8     
  Branches      1637     1639       +2     
===========================================
+ Hits          7814     7821       +7     
  Misses        4067     4067              
- Partials        36       37       +1

Impacted Files	Coverage Δ
packages/crypto/src/blocks/block.ts	92.59% <100%> (-0.06%)	⬇️
packages/crypto/src/blocks/serializer.ts	92% <88.88%> (-0.69%)	⬇️

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