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Просмотр файла: bls.d.ts
/**
* BLS (Barreto-Lynn-Scott) family of pairing-friendly curves.
* BLS != BLS.
* The file implements BLS (Boneh-Lynn-Shacham) signatures.
* Used in both BLS (Barreto-Lynn-Scott) and BN (Barreto-Naehrig)
* families of pairing-friendly curves.
* Consists of two curves: G1 and G2:
* - G1 is a subgroup of (x, y) E(Fq) over y² = x³ + 4.
* - G2 is a subgroup of ((x₁, x₂+i), (y₁, y₂+i)) E(Fq²) over y² = x³ + 4(1 + i) where i is √-1
* - Gt, created by bilinear (ate) pairing e(G1, G2), consists of p-th roots of unity in
* Fq^k where k is embedding degree. Only degree 12 is currently supported, 24 is not.
* Pairing is used to aggregate and verify signatures.
* There are two main ways to use it:
* 1. Fp for short private keys, Fp₂ for signatures
* 2. Fp for short signatures, Fp₂ for private keys
* @module
**/
/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */
import { type IField } from './modular.js';
import { type CHash, type Hex, type PrivKey } from './utils.js';
import { type htfBasicOpts, type Opts as HTFOpts, type MapToCurve, createHasher } from './hash-to-curve.js';
import type { Fp12, Fp12Bls, Fp2, Fp2Bls, Fp6 } from './tower.js';
import { type CurvePointsRes, type CurvePointsType, type ProjPointType } from './weierstrass.js';
type Fp = bigint;
export type TwistType = 'multiplicative' | 'divisive';
export type ShortSignatureCoder<Fp> = {
fromHex(hex: Hex): ProjPointType<Fp>;
toRawBytes(point: ProjPointType<Fp>): Uint8Array;
toHex(point: ProjPointType<Fp>): string;
};
export type SignatureCoder<Fp> = {
fromHex(hex: Hex): ProjPointType<Fp>;
toRawBytes(point: ProjPointType<Fp>): Uint8Array;
toHex(point: ProjPointType<Fp>): string;
};
export type PostPrecomputePointAddFn = (Rx: Fp2, Ry: Fp2, Rz: Fp2, Qx: Fp2, Qy: Fp2) => {
Rx: Fp2;
Ry: Fp2;
Rz: Fp2;
};
export type PostPrecomputeFn = (Rx: Fp2, Ry: Fp2, Rz: Fp2, Qx: Fp2, Qy: Fp2, pointAdd: PostPrecomputePointAddFn) => void;
export type CurveType = {
G1: Omit<CurvePointsType<Fp>, 'n'> & {
ShortSignature: SignatureCoder<Fp>;
mapToCurve: MapToCurve<Fp>;
htfDefaults: HTFOpts;
};
G2: Omit<CurvePointsType<Fp2>, 'n'> & {
Signature: SignatureCoder<Fp2>;
mapToCurve: MapToCurve<Fp2>;
htfDefaults: HTFOpts;
};
fields: {
Fp: IField<Fp>;
Fr: IField<bigint>;
Fp2: Fp2Bls;
Fp6: IField<Fp6>;
Fp12: Fp12Bls;
};
params: {
ateLoopSize: bigint;
xNegative: boolean;
r: bigint;
twistType: TwistType;
};
htfDefaults: HTFOpts;
hash: CHash;
randomBytes: (bytesLength?: number) => Uint8Array;
postPrecompute?: PostPrecomputeFn;
};
type PrecomputeSingle = [Fp2, Fp2, Fp2][];
type Precompute = PrecomputeSingle[];
export type CurveFn = {
getPublicKey: (privateKey: PrivKey) => Uint8Array;
getPublicKeyForShortSignatures: (privateKey: PrivKey) => Uint8Array;
sign: {
(message: Hex, privateKey: PrivKey, htfOpts?: htfBasicOpts): Uint8Array;
(message: ProjPointType<Fp2>, privateKey: PrivKey, htfOpts?: htfBasicOpts): ProjPointType<Fp2>;
};
signShortSignature: {
(message: Hex, privateKey: PrivKey, htfOpts?: htfBasicOpts): Uint8Array;
(message: ProjPointType<Fp>, privateKey: PrivKey, htfOpts?: htfBasicOpts): ProjPointType<Fp>;
};
verify: (signature: Hex | ProjPointType<Fp2>, message: Hex | ProjPointType<Fp2>, publicKey: Hex | ProjPointType<Fp>, htfOpts?: htfBasicOpts) => boolean;
verifyShortSignature: (signature: Hex | ProjPointType<Fp>, message: Hex | ProjPointType<Fp>, publicKey: Hex | ProjPointType<Fp2>, htfOpts?: htfBasicOpts) => boolean;
verifyBatch: (signature: Hex | ProjPointType<Fp2>, messages: (Hex | ProjPointType<Fp2>)[], publicKeys: (Hex | ProjPointType<Fp>)[], htfOpts?: htfBasicOpts) => boolean;
aggregatePublicKeys: {
(publicKeys: Hex[]): Uint8Array;
(publicKeys: ProjPointType<Fp>[]): ProjPointType<Fp>;
};
aggregateSignatures: {
(signatures: Hex[]): Uint8Array;
(signatures: ProjPointType<Fp2>[]): ProjPointType<Fp2>;
};
aggregateShortSignatures: {
(signatures: Hex[]): Uint8Array;
(signatures: ProjPointType<Fp>[]): ProjPointType<Fp>;
};
millerLoopBatch: (pairs: [Precompute, Fp, Fp][]) => Fp12;
pairing: (P: ProjPointType<Fp>, Q: ProjPointType<Fp2>, withFinalExponent?: boolean) => Fp12;
pairingBatch: (pairs: {
g1: ProjPointType<Fp>;
g2: ProjPointType<Fp2>;
}[], withFinalExponent?: boolean) => Fp12;
G1: CurvePointsRes<Fp> & ReturnType<typeof createHasher<Fp>>;
G2: CurvePointsRes<Fp2> & ReturnType<typeof createHasher<Fp2>>;
Signature: SignatureCoder<Fp2>;
ShortSignature: ShortSignatureCoder<Fp>;
params: {
ateLoopSize: bigint;
r: bigint;
G1b: bigint;
G2b: Fp2;
};
fields: {
Fp: IField<Fp>;
Fp2: Fp2Bls;
Fp6: IField<Fp6>;
Fp12: Fp12Bls;
Fr: IField<bigint>;
};
utils: {
randomPrivateKey: () => Uint8Array;
calcPairingPrecomputes: (p: ProjPointType<Fp2>) => Precompute;
};
};
export declare function bls(CURVE: CurveType): CurveFn;
export {};
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