Module blind_ecdsa 

Blind ECDSA — sign without seeing the message.

The requester blinds the message hash, the signer signs the blinded hash, and the requester unblinds to get a valid signature on the original message.

Uses the multiplicative blinding technique adapted for ECDSA.

Structs

BlindFactor

Blind factor metadata.

BlindedMessage

A blind signature request (blinded hash sent to signer).

RawSignature

A raw ECDSA signature as scalars (for unblinding).

Functions

blind

Blind a message hash for the signer.

blind_sign

Sign a blinded message with the signer’s key.

unblind

Unblind a blind signature to get a valid signature on the original message.