Signer_services (octez-shell-libs.Tezos_signer_services.Signer

val sign : 
  ([ `POST ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    Tezos_crypto.Signature.t option
    * Tezos_base.TzPervasives.Signature.version option,
    Tezos_base.TzPervasives.Bytes.t,
    Tezos_crypto.Signature.t)
    Tezos_rpc.Service.t

val deterministic_nonce : 
  ([ `POST ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    Tezos_crypto.Signature.t option,
    Tezos_base.TzPervasives.Bytes.t,
    Tezos_base.TzPervasives.Bytes.t)
    Tezos_rpc.Service.t

val deterministic_nonce_hash : 
  ([ `POST ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    Tezos_crypto.Signature.t option,
    Tezos_base.TzPervasives.Bytes.t,
    Tezos_base.TzPervasives.Bytes.t)
    Tezos_rpc.Service.t

val supports_deterministic_nonces : 
  ([ `GET ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    unit,
    unit,
    bool)
    Tezos_rpc.Service.t

val public_key : 
  ([ `GET ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    unit,
    unit,
    Tezos_crypto.Signature.Public_key.t)
    Tezos_rpc.Service.t

val authorized_keys : 
  ([ `GET ],
    unit,
    unit,
    unit,
    unit,
    Tezos_crypto.Signature.Public_key_hash.t list option)
    Tezos_rpc.Service.t

val known_keys : 
  ([ `GET ],
    unit,
    unit,
    unit,
    unit,
    Tezos_crypto.Signature.Public_key_hash.t list)
    Tezos_rpc.Service.t

val bls_prove_possession : 
  ([ `GET ],
    unit,
    unit * Tezos_crypto.Signature.Public_key_hash.t,
    Tezos_crypto.Signature.Bls.Public_key.t option
    * Tezos_crypto.Signature.t option,
    unit,
    Tezos_crypto.Signature.Bls.t)
    Tezos_rpc.Service.t

The query carries the public key to override, when any, and the authentication signature required by a signer started with --require-authentication. See Signer_messages.Bls_prove_possession.Request.to_sign for the payload that signature covers.