evmbls

BLS Signature verification and ECC utility contracts.

Signature verification scheme is implemented on BN254 elliptic curve. Currently only public-key-on-G2 setup is available.

Features

• Aggregated signature verification
• Compressed point suport
• Example for signature verification in optimistic way
• Optimistic hash to curve example
• Hash to field v9
• Map to curve: try and increment G1
• see Map to curve: try and increment, using helpers to get rid of modExp call
• Map to curve: try and increment G2
• Map to curve: Fouque Tibouchi
• see Map to curve: Fouque Tibouchi with modExp helpers
• EIP-2537 support
• Cheaper modexp for inversion and sqrt