Boneh–Lynn–Shacham (BLS) Signature

A Boneh–Lynn–Shacham (BLS) signature is a cryptographic mechanism used to verify the legitimacy of a signer. BLS signatures employ a bilinear pairing for verification, and the properties of its elliptic curve group provide protection against specific attack types like index calculus attacks. As a result, BLS signatures enable shorter signatures compared to Full Domain Hash (FDH) signatures while maintaining a comparable level of security.