History

Hsiao-Wei Wang d27f2350a2 Update BLS test suite to BLS standard draft v2 format 1. Make sure that BLS -Verify APIs would only return `True` or `False` , no exceptions. 2. Use `eth2spec.utils.bls` instead of py_ecc for test generator 3. Add assertions in test generator 4. Add some special test cases for the -Verify APIs 5. Clean up the test format documents		2020-05-15 00:55:06 +08:00
..
README.md	Update link	2020-01-22 11:04:45 +11:00
main.py	Update BLS test suite to BLS standard draft v2 format	2020-05-15 00:55:06 +08:00
requirements.txt	Bump py_ecc to v4.0.0 (IETF BLS v2 + H2C v7)	2020-05-13 02:27:51 +08:00

README.md

BLS Test Generator

Explanation of BLS12-381 type hierarchy The base unit is bytes48 of which only 381 bits are used

FQ: uint381 modulo field modulus
FQ2: (FQ, FQ)
G2: (FQ2, FQ2, FQ2)

Resources

Eth2 spec
Finite Field Arithmetic
Chapter 2 of Elliptic Curve Cryptography. Darrel Hankerson, Alfred Menezes, and Scott Vanstone
Zcash BLS parameters
Trinity implementation

Comments

Compared to Zcash, Ethereum specs always requires the compressed form (c_flag / most significant bit always set). Also note that pubkeys and privkeys are reversed.