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Create BBS+ signatures that features a privacy preserving subject authentication binding #9

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tplooker opened this issue Mar 15, 2020 · 2 comments
Open

Create BBS+ signatures that features a privacy preserving subject authentication binding #9

tplooker opened this issue Mar 15, 2020 · 2 comments
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Currently the BBS signatures in the initial implementation, do not support commited values in the signature being generated, the following needs to be done to accomplish this

  • Break out the required API from URSA and expose it across the FFI.
  • Consume it in the FFI layer of this library
  • Expand the top level API of a BBS signature to take in the commitment and pass it to URSA for signing.
  • Create a BLS12381 commitment key pair? E.g a class that wraps the secret and a particular commitment?
@tplooker tplooker changed the title Create BBS+ signatures that feature a binding to a subject secret (linked secret) Create BBS+ signatures that features a privacy preserving subject authentication binding Sep 9, 2020
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tplooker commented Sep 9, 2020

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tplooker commented Sep 9, 2020

Blocked by support for G1 keys in bls12381-key-pair

@tplooker tplooker self-assigned this Sep 21, 2020
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