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Просмотр файла: secp256k1.d.ts
import { type CurveFnWithCreate } from './_shortw_utils.js';
import { type HTFMethod } from './abstract/hash-to-curve.js';
import { mod } from './abstract/modular.js';
import type { Hex, PrivKey } from './abstract/utils.js';
import { bytesToNumberBE, numberToBytesBE } from './abstract/utils.js';
import { type ProjPointType as PointType } from './abstract/weierstrass.js';
/**
* secp256k1 short weierstrass curve and ECDSA signatures over it.
*
* @example
* import { secp256k1 } from '@noble/curves/secp256k1';
*
* const priv = secp256k1.utils.randomPrivateKey();
* const pub = secp256k1.getPublicKey(priv);
* const msg = new Uint8Array(32).fill(1); // message hash (not message) in ecdsa
* const sig = secp256k1.sign(msg, priv); // `{prehash: true}` option is available
* const isValid = secp256k1.verify(sig, msg, pub) === true;
*/
export declare const secp256k1: CurveFnWithCreate;
declare function taggedHash(tag: string, ...messages: Uint8Array[]): Uint8Array;
/**
* lift_x from BIP340. Convert 32-byte x coordinate to elliptic curve point.
* @returns valid point checked for being on-curve
*/
declare function lift_x(x: bigint): PointType<bigint>;
/**
* Schnorr public key is just `x` coordinate of Point as per BIP340.
*/
declare function schnorrGetPublicKey(privateKey: Hex): Uint8Array;
/**
* Creates Schnorr signature as per BIP340. Verifies itself before returning anything.
* auxRand is optional and is not the sole source of k generation: bad CSPRNG won't be dangerous.
*/
declare function schnorrSign(message: Hex, privateKey: PrivKey, auxRand?: Hex): Uint8Array;
/**
* Verifies Schnorr signature.
* Will swallow errors & return false except for initial type validation of arguments.
*/
declare function schnorrVerify(signature: Hex, message: Hex, publicKey: Hex): boolean;
export type SecpSchnorr = {
getPublicKey: typeof schnorrGetPublicKey;
sign: typeof schnorrSign;
verify: typeof schnorrVerify;
utils: {
randomPrivateKey: () => Uint8Array;
lift_x: typeof lift_x;
pointToBytes: (point: PointType<bigint>) => Uint8Array;
numberToBytesBE: typeof numberToBytesBE;
bytesToNumberBE: typeof bytesToNumberBE;
taggedHash: typeof taggedHash;
mod: typeof mod;
};
};
/**
* Schnorr signatures over secp256k1.
* https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki
* @example
* import { schnorr } from '@noble/curves/secp256k1';
* const priv = schnorr.utils.randomPrivateKey();
* const pub = schnorr.getPublicKey(priv);
* const msg = new TextEncoder().encode('hello');
* const sig = schnorr.sign(msg, priv);
* const isValid = schnorr.verify(sig, msg, pub);
*/
export declare const schnorr: SecpSchnorr;
/** secp256k1 hash-to-curve from [RFC 9380](https://www.rfc-editor.org/rfc/rfc9380). */
export declare const hashToCurve: HTFMethod<bigint>;
/** secp256k1 encode-to-curve from [RFC 9380](https://www.rfc-editor.org/rfc/rfc9380). */
export declare const encodeToCurve: HTFMethod<bigint>;
export {};
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