Update KDoc and file headers across Secp256k1.kt, Point.kt, FieldP.kt,
and U256.kt with:
- Accurate benchmark numbers (well-warmed: verify 4.4x, sign 1.5x,
pubCreate 2.2x, ECDH 3.9x, compress 2x FASTER)
- Detailed comparison with C libsecp256k1 architecture choices
- Explanation of why certain C optimizations don't port to JVM:
* Lazy reduction: 4x64 limbs have no headroom (C's 5x52 has 12 bits)
* safegcd: slower on JVM due to 128-bit arithmetic overhead
* WINDOW_G=15: cache pressure from heap-allocated objects (w=12 optimal)
- Document effective-affine technique and batch inversion
- Increase all benchmark warmup/iterations for stable measurements
https://claude.ai/code/session_01BhU63WUe9AhikZxRdw3Lpg
Claude
ef7790b775