[−][src]Module secp256k1::ffi
FFI bindings
Direct bindings to the underlying C library functions. These should not be needed for most users.
Structs
| Context | A Secp256k1 context, containing various precomputed values and such
needed to do elliptic curve computations. If you create one of these
with |
| PublicKey | Library-internal representation of a Secp256k1 public key |
| SharedSecret | Library-internal representation of an ECDH shared secret |
| Signature | Library-internal representation of a Secp256k1 signature |
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 | |
| secp256k1_context_no_precomp | |
| secp256k1_nonce_function_rfc6979 |
Functions
| ecdsa_signature_parse_der_lax⚠ | |
| secp256k1_context_create⚠ | A reimplementation of the C function |
| secp256k1_context_destroy⚠ | A reimplementation of the C function |
| secp256k1_default_illegal_callback_fn⚠ | This function is an override for the C function, this is the an edited version of the original description: |
| secp256k1_default_error_callback_fn⚠ | This function is an override for the C function, this is the an edited version of the original description: |
| secp256k1_context_preallocated_create⚠ | Creates a dummy context, tracking flags to ensure proper calling semantics |
| secp256k1_context_preallocated_size⚠ | Return dummy size of context struct. |
| secp256k1_context_preallocated_clone_size⚠ | Return dummy size of context struct. |
| secp256k1_context_preallocated_clone⚠ | Copies a dummy context |
| secp256k1_context_preallocated_destroy⚠ | "Destroys" a dummy context |
| secp256k1_context_randomize⚠ | Asserts that cx is properly initialized |
| secp256k1_ec_pubkey_parse⚠ | Parse 33/65 byte pubkey into PublicKey, losing compressed information |
| secp256k1_ec_pubkey_serialize⚠ | Serialize PublicKey back to 33/65 byte pubkey |
| secp256k1_ecdsa_signature_parse_der⚠ | |
| secp256k1_ecdsa_signature_parse_compact⚠ | Copies input64 to sig, checking the pubkey part is valid |
| secp256k1_ecdsa_signature_serialize_der⚠ | Copies up to 72 bytes into output from sig |
| secp256k1_ecdsa_signature_serialize_compact⚠ | Copies sig to output64 |
| secp256k1_ecdsa_signature_normalize⚠ | |
| secp256k1_ecdsa_verify⚠ | Verifies that sig is msg32||pk[0..32] |
| secp256k1_ecdsa_sign⚠ | Sets sig to msg32||sk |
| secp256k1_ec_seckey_verify⚠ | Checks that sk != 0xffff...ffff |
| secp256k1_ec_pubkey_create⚠ | Sets pk to sk||sk |
| secp256k1_ec_privkey_tweak_add⚠ | Copies the first 16 bytes of tweak into the last 16 bytes of sk |
| secp256k1_ec_pubkey_tweak_add⚠ | The PublicKey equivalent of secp256k1_ec_privkey_tweak_add |
| secp256k1_ec_privkey_tweak_mul⚠ | Copies the last 16 bytes of tweak into the last 16 bytes of sk |
| secp256k1_ec_pubkey_tweak_mul⚠ | The PublicKey equivalent of secp256k1_ec_privkey_tweak_mul |
| secp256k1_ec_pubkey_combine⚠ | |
| secp256k1_ecdh⚠ | Sets out to point[0..16]||scalar[0..16] |
| test_pk_validate⚠ | Checks that pk != 0xffff...ffff and pk[0..32] == pk[32..64] |
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. |