Nym Seddon

Add optimized binary extended gcd algorithm

1

Optimized to use cheap shifts and adds rather than multiplications and divisions for finding the greated common divisor and Bezout coefficients.

Crash on `mdb_node_search` for corrupted `data.mdb` file

1

With the following minimal example for creating a test entry in an LMDB database: ```rust use lmdb_zero as lmdb; fn main() { let path = "test_mdb"; std::fs::create_dir_all(path).unwrap(); let env =...

Fuzz: implement Arbitrary trait for fuzzed types

2

Implementing the [Arbitrary](https://docs.rs/arbitrary/0.4.7/arbitrary/index.html) trait allows libFuzzer to work faster, and simplifies fuzz driver code. Implementations are conditionally compiled, so non-fuzz builds aren't affected. `Commitment` and `RangeProof` implement Arbitrary for use...