Client_proto_utils (octez-protocol-012-Psithaca-libs.Tezos_client_012_Psithaca.Client_proto

val sign_message : 
  Protocol_client_context.full ->
  src_sk:Tezos_client_base.Client_keys_v0.sk_uri ->
  block:Tezos_base.TzPervasives.Block_hash.t ->
  message:string ->
  Tezos_crypto.Signature.V0.t Tezos_base.TzPervasives.tzresult Lwt.t

val check_message : 
  Protocol_client_context.full ->
  block:Tezos_base.TzPervasives.Block_hash.t ->
  key_locator:Tezos_client_base.Client_keys_v0.pk_uri ->
  quiet:bool ->
  message:string ->
  signature:Tezos_crypto.Signature.V0.t ->
  bool Tezos_base.TzPervasives.tzresult Lwt.t