Crate signer_btc 

Bitcoin transaction signer built on the bitcoin crate.

Signer wraps a PrivateKey and uses the global secp256k1 context for all cryptographic operations — ECDSA, Schnorr, PSBT, and BIP-137 message signing.

Zero hand-rolled cryptography.

Signing methods

Method	Description
Signer::sign_ecdsa	secp256k1 ECDSA signature
Signer::sign_schnorr	BIP-340 Schnorr signature (Taproot)
Signer::sign_message	BIP-137 Bitcoin Signed Message
Signer::verify_message	Verify a BIP-137 message
Signer::sign_psbt	Sign all applicable PSBT inputs

Deref

Signer implements Deref<Target = PrivateKey>, giving direct access to all PrivateKey methods (e.g. to_wif(), public_key()).

Re-exports

pub use bitcoin;

pub use bitcoin::secp256k1;

Structs

Address

A Bitcoin address.

CompressedPublicKey

An always-compressed Bitcoin ECDSA public key

PrivateKey

A Bitcoin ECDSA private key

Psbt

A Partially Signed Transaction.

PublicKey

A Bitcoin ECDSA public key

Signer

Bitcoin transaction signer.

Transaction

Bitcoin transaction.

Enums

AddressType

BIP-137 address type for message signing.

Error

Errors that can occur during Bitcoin signing operations.

Network

The cryptocurrency network to act on.

NetworkKind

What kind of network we are on.