tendermint

291 MiB

Tree: f858ebeb88

Author	SHA1	Message	Date
Yawning Angel	c5cc3c8d3f	crypto: Use a different library for ed25519/sr25519 (#6526 ) At Oasis we have spend some time writing a new Ed25519/X25519/sr25519 implementation called curve25519-voi. This PR switches the import from ed25519consensus/go-schnorrkel, which should lead to performance gains on most systems. Summary of changes: * curve25519-voi is now used for Ed25519 operations, following the existing ZIP-215 semantics. * curve25519-voi's public key cache is enabled (hardcoded size of 4096 entries, should be tuned, see the code comment) to accelerate repeated Ed25519 verification with the same public key(s). * (BREAKING) curve25519-voi is now used for sr25519 operations. This is a breaking change as the current sr25519 support does something decidedly non-standard when going from a MiniSecretKey to a SecretKey and or PublicKey (The expansion routine is called twice). While I believe the new behavior (that expands once and only once) to be more "correct", this changes the semantics as implemented. * curve25519-voi is now used for merlin since the included STROBE implementation produces much less garbage on the heap. Side issues fixed: * The version of go-schnorrkel that is currently imported by tendermint has a badly broken batch verification implementation. Upstream has fixed the issue after I reported it, so the version should be bumped in the interim. Open design questions/issues: * As noted, the public key cache size should be tuned. It is currently backed by a trivial thread-safe LRU cache, which is not scan-resistant, but replacing it with something better is a matter of implementing an interface. * As far as I can tell, the only reason why serial verification on batch failure is necessary is to provide more detailed error messages (that are only used in some unit tests). If you trust the batch verification to be consistent with serial verification then the fallback can be eliminated entirely (the BatchVerifier provided by the new library supports an option that omits the fallback if this is chosen as the way forward). * curve25519-voi's sr25519 support could use more optimization and more eyes on the code. The algorithm unfortunately is woefully under-specified, and the implementation was done primarily because I got really sad when I actually looked at go-schnorrkel, and we do not use the algorithm at this time.	3 years ago
Callum Waters	9e2af66a0a	types: fix verify commit light / trusting bug (#6414 )	4 years ago
Anton Kaliaev	3e1516b624	linters: enable stylecheck (#4153 ) Refs #3262	5 years ago
Anton Kaliaev	fb91ef7462	validate reactor messages (#2711 ) * validate reactor messages Refs #2683 * validate blockchain messages Refs #2683 * validate evidence messages Refs #2683 * todo * check ProposalPOL and signature sizes * add a changelog entry * check addr is valid when we add it to the addrbook * validate incoming netAddr (not just nil check!) * fixes after Bucky's review * check timestamps * beef up block#ValidateBasic * move some checks into bcBlockResponseMessage * update Gopkg.lock Fix ``` grouped write of manifest, lock and vendor: failed to export github.com/tendermint/go-amino: fatal: failed to unpack tree object `6dcc6ddc14` ``` by running `dep ensure -update` * bump year since now we check it * generate test/p2p/data on the fly using tendermint testnet * allow sync chains older than 1 year * use full path when creating a testnet * move testnet gen to test/docker/Dockerfile * relax LastCommitRound check Refs #2737 * fix conflicts after merge * add small comment * some ValidateBasic updates * fixes * AppHash length is not fixed	6 years ago

4 Commits (f858ebeb882f7cc8e73136d972187bd52ddebb1b)