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https://github.com/status-im/nim-blscurve
Nim implementation of BLS signature scheme (Boneh-Lynn-Shacham) over Barreto-Lynn-Scott (BLS) curve BLS12-381
https://github.com/status-im/nim-blscurve
bls cryptography elliptic-curve-arithmetic elliptic-curve-cryptography elliptic-curves pairing pairing-cryptography signature-scheme
Last synced: about 2 months ago
JSON representation
Nim implementation of BLS signature scheme (Boneh-Lynn-Shacham) over Barreto-Lynn-Scott (BLS) curve BLS12-381
- Host: GitHub
- URL: https://github.com/status-im/nim-blscurve
- Owner: status-im
- License: apache-2.0
- Created: 2018-07-26T17:37:36.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2024-09-12T15:28:20.000Z (4 months ago)
- Last Synced: 2024-09-13T04:05:17.006Z (4 months ago)
- Topics: bls, cryptography, elliptic-curve-arithmetic, elliptic-curve-cryptography, elliptic-curves, pairing, pairing-cryptography, signature-scheme
- Language: Nim
- Homepage:
- Size: 1.22 MB
- Stars: 26
- Watchers: 22
- Forks: 11
- Open Issues: 6
-
Metadata Files:
- Readme: README.md
- License: LICENSE-APACHEv2
Awesome Lists containing this project
- awesome-nim - bslcurve - Nim implementation of BLS signature scheme (Boneh-Lynn-Shacham) over Barreto-Lynn-Scott (BLS) curve BLS12-381. (Algorithms / Cryptography)
README
# BLS Signature Scheme over BLS12-381 pairing-friendly curve
[](https://opensource.org/licenses/MIT)
[](https://opensource.org/licenses/Apache-2.0)
This library implements:
- The BLS signature scheme (Boneh-Lynn-Shacham)
- over the BLS12-381 (Barreto-Lynn-Scott) pairing-friendly curve
Cipher suite ID: `BLS_SIG_BLS12381G2_XMD:SHA-256_SSWU_RO_POP_`
## Installation
You can install the developement version of the library through nimble with the following command
```
nimble install https://github.com/status-im/nim-blscurve
```
## Implementation stability
This repo follows Ethereum 2.0 requirements.
Besides the standardization work described below, no changes are planned upstream
for the foreseeable future.
### Standardization
Currently (Jun 2019) a cross-blockchain working group is working to standardize BLS signatures
for the following blockchains:
- Algorand
- Chia Network
- Dfinity
- Ethereum 2.0
- Filecoin
- Zcash Sapling
#### Signature scheme
- IETF draft submission v2: https://tools.ietf.org/html/draft-boneh-bls-signature-02
- Repo for collaboration on the draft: https://github.com/cfrg/draft-irtf-cfrg-bls-signature
#### Hashing to curve
- https://tools.ietf.org/html/draft-irtf-cfrg-hash-to-curve-09
- https://github.com/cfrg/draft-irtf-cfrg-hash-to-curve
Note: the implementation was done following Hash-to-curve v7
v9 and v7 are protocol compatible but have cosmetic changes (naming variables, precomputing constants, ...)
#### Curve implementation
- https://tools.ietf.org/html/draft-irtf-cfrg-pairing-friendly-curves-00
## Backend
This library uses:
- [SupraNational BLST](https://github.com/supranational/blst) on all platforms.
BLST uses SSSE3 by default, if supported on the host. To disable that, when building
binaries destined for older CPUs, pass `-d:BLSTuseSSSE3=0` to the Nim compiler.
### Executing the test suite
We recommend working within the nimbus build environment described here:
https://github.com/status-im/nimbus-eth2
To execute the test suite, just navigate to the root of this repo and execute:
```
nimble test
```
> Please note that within the nimbus build environment, the repository will
be located in `nimbus-eth2/vendor/nim-blscurve`.
### Executing the fuzzing tests
Before you start, please make sure that the regular test suite executes
successfully (see the instructions above). To start a particular fuzzing
test, navigate to the root of this repo and execute:
```
nim tests/fuzzing/run_fuzzing_test.nims
```
You can specify the fuzzing engine being used by passing an additional
`--fuzzer` parameter. The currently supported engines are `libFuzzer`
(used by default) and `afl`.
All fuzzing tests are located in `tests/fuzzing` and use the following
naming convention:
```
fuzz_.nim
```
## License
Licensed and distributed under either of
* MIT license: [LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT
* Apache License, Version 2.0, ([LICENSE-APACHEv2](LICENSE-APACHEv2) or http://www.apache.org/licenses/LICENSE-2.0)
at your option. These files may not be copied, modified, or distributed except according to those terms.
### Dependencies
- SupraNational BLST is distributed under the Apache License, Version 2.0