Reference Spec and Implementations

[coolaj86]

IETF Spec:

• https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-bls-signature-03

Implementations:

• https://github.com/sonr-eco/kryptology
  • ✅ Current Maintained
• https://pkg.go.dev/github.com/coinbase/kryptology/pkg/signatures/bls/bls_sig
  • ✅ References IETF + Chia
  • ✅ No BLS dependency in https://github.com/coinbase/kryptology/blob/v1.8.0/go.mod
  • ⚠️ abandoned without explanation or replacement
• https://pkg.go.dev/github.com/chuwt/chia-bls-go#section-readme
  • https://github.com/kilic/bls12-381
  • ✅ references IETF https://github.com/search?q=repo%3Akilic%2Fbls12-381%20ietf&type=code
  • ⚠️ Is this the right implementation? https://github.com/chuwt/chia-bls-go/blob/f0bd08172853902ff36ddc89bbde8c6c3252edb7/private_key.go#L7
• https://pkg.go.dev/github.com/ava-labs/avalanchego/utils/crypto/bls
  • ❌ blst "github.com/supranational/blst/bindings/go"

Requirements:

• NOT C++
• NOT ffi
• NOT a "binding"
• Pure, Raw, Unadultered GO!

[coolaj86]

How can we generate keys that are compatible with our keys?

Coinbase is based on Draft-03 & Draft-04:

https://github.com/coinbase/kryptology/blob/eef703320df46f97e86ead4eff178b095181b0ec/pkg/signatures/bls/bls_sig/lib.go#L7

https://github.com/coinbase/kryptology/blob/eef703320df46f97e86ead4eff178b095181b0ec/pkg/signatures/bbs/secret_key.go#L29

Tenderdash is based on Draft-04:

https://github.com/dashpay/tenderdash/blob/a226dc9f1f0388db2c4a7c263d1eaf6fa0ba225a/docs/rfc/rfc-018-bls-agg-exploration.md?plain=1#L532

Draft-05 appears current on IETF and GitHub:

• https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-bls-signature-05
• https://github.com/cfrg/draft-irtf-cfrg-bls-signature