Lib.rs

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#bls #ietf #standard #draft #different #cases #specify

nightly bls12_381_ietf

Rust implementation of the IETF BLS draft standard

by Eduardo Antuña Díez

4 releases

0.1.3 Apr 7, 2020
0.1.2 Apr 7, 2020
0.1.1 Apr 7, 2020
0.1.0 Apr 6, 2020

#5 in #draft

GPL-3.0 license

60KB
1K SLoC

bls12_381_ietf

bls12_381_ietf is a crate lib that implements the IETF BLS draft standard v0 with hash-to-curve v5 as per the inter-blockchain standardization agreement. The BLS standards specify different ciphersuites which each have different functionality to accommodate various use cases. The following ciphersuites are availible from this library:

  • G2Basic also known as BLS_SIG_BLS12381G2-SHA256-SSWU-RO-_NUL_
  • G2MessageAugmentation also known as BLS_SIG_BLS12381G2-SHA256-SSWU-RO-_AUG_
  • (Pending) G2ProofOfPossession also known as BLS_SIG_BLS12381G2-SHA256-SSWU-RO-_POP_

WARNING: This is a proof-of-concept prototype, and in particular has not been reviewed or audited. Use at your own risk.

Security Warnings

This library does not make any guarantees about constant-time operations, memory access patterns, or resistance to side-channel attacks.

Pending tasks

  • Implement KeyGen standard
  • Implement G2ProofOfPossession
  • Implement signature verification
  • Implement signature aggregation
  • Add github actions to test PR and commits
  • Add test vectors from other implementations
  • Update BLS from IETF v1 -> v2
  • Switches hash-to-field to new v06 hash system
  • Add EIP-2333 as a feature

Commands

Examples

$ cargo run --example g2basic
   Compiling bls12_381_ietf v0.1.0 (/Users/edu/bls/bls12_381_ietf)
    Finished dev [unoptimized + debuginfo] target(s) in 1.46s
     Running `target/debug/examples/g2basic`
Public Key:     81d84ab98c774e9f4f18f17d968dbb0ada8fbb6210ac48e372813ac5f7b67f188ddf11dcd71644c7226cab56869ba6a4
Message:        edu@dappnode.io
Signature:      b3731f23c92afafc4d511

$ cargo run --example g2messageaugmentation
   Compiling bls12_381_ietf v0.1.0 (/Users/edu/bls/bls12_381_ietf)
    Finished dev [unoptimized + debuginfo] target(s) in 0.62s
     Running `target/debug/examples/g2messageaugmentation`
Public Key:     8bb1ad17ca77078a500ef0780c3c3a5f0dc26290b0bfb21d2c76f1a827bed8764d7f32332dc2db3084b1faea29134ea7
Message:        edu@dappnode.io!!!
Signature:      b4352d55bf8e40afb0dbad2bb904dd080b74e3840850bb799a77d8c54100b652105d66a0756cb56fd4ceadc4f84863d00a6b5a839f6a275d45f569f5bc7a796089daf565229359cd676381a0926a6369ed19ce3887191c0809c1368abd68162d
Signature verified correctly!

Tests

$ cargo test
   Compiling bls12_381_ietf v0.1.0 (/Users/edu/bls/bls12_381_ietf)
    Finished test [unoptimized + debuginfo] target(s) in 1.63s
     Running target/debug/deps/bls12_381_ietf-92da16f66df5b352

running 23 tests
test optimized_swu::tests::test_sgn0_be ... ok
test optimized_swu::tests::bench_iso_map_g2 ... ok
test optimized_swu::tests::test_iso_map_g2 ... ok
test optimized_swu::tests::bench_sqrt_division_fq2 ... ok
test optimized_swu::tests::test_sqrt_division_fq2 ... ok
test tests::bench_test_priv_to_pub ... ok
test optimized_swu::tests::bench_optimized_swu_g2 ... ok
test optimized_swu::tests::test_optimized_swu_g2 ... ok
test tests::bench_keygen ... ok
test tests::test_priv_to_pub ... ok
test tests::test_keygen ... ok
test tests::bench_hash_to_g2 ... ok
test tests::test_sign_g2basic ... ok
test tests::test_verify_g2_message_augmentation_panic ... ok
test tests::bench_sign_g2basic ... ok
test tests::test_verify_g2basic_panic ... ok
test tests::bench_sign_g2_message_augmentation ... ok
test tests::test_sign_g2_message_augmentation ... ok
test tests::test_hash_to_g2 ... ok
test tests::bench_verify_g2basic ... ok
test tests::bench_verify_g2_message_augmentation ... ok
test tests::test_verify_g2_message_augmentation ... ok
test tests::test_verify_g2basic ... ok

test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

   Doc-tests bls12_381_ietf

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

Benches

$ cargo bench
   Compiling bls12_381_ietf v0.1.0 (/Users/edu/bls/bls12_381_ietf)
    Finished bench [optimized] target(s) in 2.56s
     Running target/release/deps/bls12_381_ietf-29a9ffc0e2b8dcd3

running 23 tests
test optimized_swu::tests::test_iso_map_g2 ... ignored
test optimized_swu::tests::test_optimized_swu_g2 ... ignored
test optimized_swu::tests::test_sgn0_be ... ignored
test optimized_swu::tests::test_sqrt_division_fq2 ... ignored
test tests::test_hash_to_g2 ... ignored
test tests::test_keygen ... ignored
test tests::test_priv_to_pub ... ignored
test tests::test_sign_g2_message_augmentation ... ignored
test tests::test_sign_g2basic ... ignored
test tests::test_verify_g2_message_augmentation ... ignored
test tests::test_verify_g2_message_augmentation_panic ... ignored
test tests::test_verify_g2basic ... ignored
test tests::test_verify_g2basic_panic ... ignored
test optimized_swu::tests::bench_iso_map_g2        ... bench:       7,789 ns/iter (+/- 1,293)
test optimized_swu::tests::bench_optimized_swu_g2  ... bench:     233,062 ns/iter (+/- 22,060)
test optimized_swu::tests::bench_sqrt_division_fq2 ... bench:     222,143 ns/iter (+/- 19,289)
test tests::bench_hash_to_g2                       ... bench:   3,571,612 ns/iter (+/- 332,016)
test tests::bench_keygen                           ... bench:     258,906 ns/iter (+/- 18,152)
test tests::bench_sign_g2_message_augmentation     ... bench:   3,637,884 ns/iter (+/- 393,305)
test tests::bench_sign_g2basic                     ... bench:   3,557,166 ns/iter (+/- 193,992)
test tests::bench_test_priv_to_pub                 ... bench:      17,496 ns/iter (+/- 1,461)
test tests::bench_verify_g2_message_augmentation   ... bench:   9,779,860 ns/iter (+/- 2,000,297)
test tests::bench_verify_g2basic                   ... bench:  10,094,099 ns/iter (+/- 2,964,663)

test result: ok. 0 passed; 0 failed; 13 ignored; 10 measured; 0 filtered out

Reference implementations

Bibliography

Dependencies

~4MB
~85K SLoC