String_sign (string_sign.String

module Inner_curve = Snark_params.Tick.Inner_curve

val nybble_bits : int -> bool list

val char_bits : Core_kernel.Char.t -> bool list

val string_to_input : 
  Stdlib.String.t ->
  ( 'a, bool ) Random_oracle.Input.Legacy.t

val verify : 
  ?signature_kind:Mina_signature_kind.t ->
  Signature_lib.Schnorr.Legacy.Signature.t ->
  (Kimchi_pasta_basic.Fp.t * Kimchi_pasta_basic.Fp.t) ->
  Stdlib.String.t ->
  bool

val sign : 
  ?signature_kind:Mina_signature_kind.t ->
  Signature_lib.Schnorr.Legacy.Private_key.t ->
  Stdlib.String.t ->
  Signature_lib.Schnorr.Legacy.Signature.t