package secp256k1

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package secp256k1

secp256k1
- Secp256k1
  - Context
  - Public
  - RecoverableSign
  - Secret
  - Sign

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type t

Opaque data structure that holds a parsed ECDSA recoverable signature.

val compare : t -> t -> int

val of_compact : Context.t -> recid:int -> ?pos:int -> buffer -> t option

val of_compact_exn : Context.t -> recid:int -> ?pos:int -> buffer -> t

Parse an ECDSA recoverable signature in compact (64 bytes) format. Buffer must be 64 bytes. The third argument is the recovery id.

val to_compact : Context.t -> t -> buffer * int

Serialize an ECDSA recoverable signature in compact (64 bytes) format. The returned int is the recovery id.

val write_compact : Context.t -> buffer -> ?pos:int -> t -> int

write_compact ctx buf ?pos signature writes signature at buf starting at pos in compact format.

val convert : Context.t -> t -> Sign.t

Convert an ECDSA recoverable signature into an ECDSA signature

val sign : Context.t -> seckey:Secret.t -> ?pos:int -> buffer -> t

Create an ECDSA recoverable signature. Buffer must contain a 32-byte message hash.

val write_sign : 
  Context.t ->
  seckey:Secret.t ->
  outbuf:buffer ->
  ?outpos:int ->
  inbuf:buffer ->
  ?inpos:int ->
  unit ->
  unit

write_sign ctx ~seckey ~outbuf ~outpos ~inbuf ~inpos () signs the message at inbuf starting at inpos and writes the signature at outbuf starting at outpos using seckey

val recover : Context.t -> t -> ?pos:int -> buffer -> Public.t

Recover an ECDSA public key from a signature. Buffer must contain a 32-byte message hash.