Summary

Reorganize op-geth assets to support two NTT precompile implementation variants with updated specification documenting their performance characteristics and trade-offs.

Asset Structure Changes

• Reorganize assets/eip-7885/op-geth/ into two subdirectories:
  • nocgo/ - Pure Go implementation with zero external dependencies
  • cgo/ - liboqs-based implementation for high performance
• Both variants provide identical precompile interfaces at addresses 0x12-0x15
• Separate benchmark results for each implementation

Specification Updates

Gas Cost Analysis

• Add comparative table for both implementations:
  • Pure Go: Falcon-512 (790 gas), Falcon-1024 (1,750 gas)
  • liboqs: Falcon-512 (500 gas), Falcon-1024 (1,080 gas)
  • liboqs variant offers 36-38% lower gas costs for NTT operations

Documentation

• Update Native Client Implementation section with both variants
• Split benchmark links to variant-specific paths
• Add direct links to all reference implementations (Python, Solidity, OP-Geth)
• Remove external links