[−][src]Crate secp256k1_sys

secp256k1-sys FFI bindings

Direct bindings to the underlying C library functions. These should not be needed for most users.

Modules

recovery	FFI of the recovery module
types

Macros

impl_array_newtype
impl_raw_debug

Structs

Context	A Secp256k1 context, containing various precomputed values and such needed to do elliptic curve computations. If you create one of these with `secp256k1_context_create` you MUST destroy it with `secp256k1_context_destroy`, or else you will have a memory leak.
KeyPair
PublicKey	Library-internal representation of a Secp256k1 public key
Signature	Library-internal representation of a Secp256k1 signature
XOnlyPublicKey

Constants

SECP256K1_START_NONE	Flag for context to enable no precomputation
SECP256K1_START_VERIFY	Flag for context to enable verification precomputation
SECP256K1_START_SIGN	Flag for context to enable signing precomputation
SECP256K1_SER_UNCOMPRESSED	Flag for keys to indicate uncompressed serialization format
SECP256K1_SER_COMPRESSED	Flag for keys to indicate compressed serialization format

Statics

secp256k1_ecdh_hash_function_default	Default ECDH hash function
secp256k1_nonce_function_default
secp256k1_context_no_precomp
secp256k1_nonce_function_bip340
secp256k1_nonce_function_rfc6979

A trait for producing pointers that will always be valid in C. (assuming NULL pointer is a valid no-op) Rust doesn't promise what pointers does it give to ZST (https://doc.rust-lang.org/nomicon/exotic-sizes.html#zero-sized-types-zsts) In case the type is empty this trait will give a NULL pointer, which should be handled in C.

Functions

ecdsa_signature_parse_der_lax ^⚠
rustsecp256k1_v0_4_0_context_create ^⚠	A reimplementation of the C function `secp256k1_context_create` in rust.
rustsecp256k1_v0_4_0_context_destroy ^⚠	A reimplementation of the C function `secp256k1_context_destroy` in rust.
rustsecp256k1_v0_4_0_default_error_callback_fn ^⚠	This function is an override for the C function, this is the an edited version of the original description:
rustsecp256k1_v0_4_0_default_illegal_callback_fn ^⚠	This function is an override for the C function, this is the an edited version of the original description:
secp256k1_context_create ^⚠
secp256k1_context_destroy ^⚠
secp256k1_context_preallocated_size ^⚠
secp256k1_context_preallocated_create ^⚠
secp256k1_context_preallocated_destroy ^⚠
secp256k1_context_preallocated_clone_size ^⚠
secp256k1_context_preallocated_clone ^⚠
secp256k1_context_randomize ^⚠
secp256k1_ec_pubkey_parse ^⚠
secp256k1_ec_pubkey_serialize ^⚠
secp256k1_ecdsa_signature_parse_der ^⚠
secp256k1_ecdsa_signature_parse_compact ^⚠
secp256k1_ecdsa_signature_serialize_der ^⚠
secp256k1_ecdsa_signature_serialize_compact ^⚠
secp256k1_ecdsa_signature_normalize ^⚠
secp256k1_ec_seckey_verify ^⚠
secp256k1_ec_privkey_negate ^⚠	Deprecated
secp256k1_ec_seckey_negate ^⚠
secp256k1_ec_privkey_tweak_add ^⚠	Deprecated
secp256k1_ec_seckey_tweak_add ^⚠
secp256k1_ec_privkey_tweak_mul ^⚠	Deprecated
secp256k1_ec_seckey_tweak_mul ^⚠
secp256k1_ec_pubkey_create ^⚠
secp256k1_ec_pubkey_negate ^⚠
secp256k1_ec_pubkey_tweak_add ^⚠
secp256k1_ec_pubkey_tweak_mul ^⚠
secp256k1_ec_pubkey_combine ^⚠
secp256k1_ecdh ^⚠
secp256k1_keypair_create ^⚠
secp256k1_xonly_pubkey_parse ^⚠
secp256k1_xonly_pubkey_serialize ^⚠
secp256k1_xonly_pubkey_from_pubkey ^⚠
secp256k1_xonly_pubkey_tweak_add ^⚠
secp256k1_keypair_xonly_pub ^⚠
secp256k1_keypair_xonly_tweak_add ^⚠
secp256k1_xonly_pubkey_tweak_add_check ^⚠
secp256k1_ecdsa_verify ^⚠
secp256k1_ecdsa_sign ^⚠
secp256k1_schnorrsig_sign ^⚠
secp256k1_schnorrsig_verify ^⚠

Type Definitions

EcdhHashFn	Hash function to use to post-process an ECDH point to get a shared secret.
NonceFn	A nonce generation function. Ordinary users of the library never need to see this type; only if you need to control nonce generation do you need to use it. I have deliberately made this hard to do: you have to write your own wrapper around the FFI functions to use it. And it's an unsafe type. Nonces are generated deterministically by RFC6979 by default; there should be no need to ever change this.
SchnorrNonceFn	Same as secp256k1_nonce function with the exception of accepting an additional pubkey argument and not requiring an attempt argument. The pubkey argument can protect signature schemes with key-prefixed challenge hash inputs against reusing the nonce when signing with the wrong precomputed pubkey.