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Текущая директория: /opt/BitGoJS/node_modules/micro-eth-signer/node_modules/@noble/curves/abstract
Просмотр файла: weierstrass.d.ts
/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */
import * as mod from './modular.js';
import * as ut from './utils.js';
import { CHash, Hex, PrivKey } from './utils.js';
import { Group, GroupConstructor, BasicCurve, AffinePoint } from './curve.js';
export type { AffinePoint };
type HmacFnSync = (key: Uint8Array, ...messages: Uint8Array[]) => Uint8Array;
type EndomorphismOpts = {
beta: bigint;
splitScalar: (k: bigint) => {
k1neg: boolean;
k1: bigint;
k2neg: boolean;
k2: bigint;
};
};
export type BasicWCurve<T> = BasicCurve<T> & {
a: T;
b: T;
allowedPrivateKeyLengths?: readonly number[];
wrapPrivateKey?: boolean;
endo?: EndomorphismOpts;
isTorsionFree?: (c: ProjConstructor<T>, point: ProjPointType<T>) => boolean;
clearCofactor?: (c: ProjConstructor<T>, point: ProjPointType<T>) => ProjPointType<T>;
};
type Entropy = Hex | true;
export type SignOpts = {
lowS?: boolean;
extraEntropy?: Entropy;
prehash?: boolean;
};
export type VerOpts = {
lowS?: boolean;
prehash?: boolean;
};
/**
* ### Design rationale for types
*
* * Interaction between classes from different curves should fail:
* `k256.Point.BASE.add(p256.Point.BASE)`
* * For this purpose we want to use `instanceof` operator, which is fast and works during runtime
* * Different calls of `curve()` would return different classes -
* `curve(params) !== curve(params)`: if somebody decided to monkey-patch their curve,
* it won't affect others
*
* TypeScript can't infer types for classes created inside a function. Classes is one instance of nominative types in TypeScript and interfaces only check for shape, so it's hard to create unique type for every function call.
*
* We can use generic types via some param, like curve opts, but that would:
* 1. Enable interaction between `curve(params)` and `curve(params)` (curves of same params)
* which is hard to debug.
* 2. Params can be generic and we can't enforce them to be constant value:
* if somebody creates curve from non-constant params,
* it would be allowed to interact with other curves with non-constant params
*
* TODO: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-7.html#unique-symbol
*/
export interface ProjPointType<T> extends Group<ProjPointType<T>> {
readonly px: T;
readonly py: T;
readonly pz: T;
get x(): T;
get y(): T;
multiply(scalar: bigint): ProjPointType<T>;
toAffine(iz?: T): AffinePoint<T>;
isTorsionFree(): boolean;
clearCofactor(): ProjPointType<T>;
assertValidity(): void;
hasEvenY(): boolean;
toRawBytes(isCompressed?: boolean): Uint8Array;
toHex(isCompressed?: boolean): string;
multiplyUnsafe(scalar: bigint): ProjPointType<T>;
multiplyAndAddUnsafe(Q: ProjPointType<T>, a: bigint, b: bigint): ProjPointType<T> | undefined;
_setWindowSize(windowSize: number): void;
}
export interface ProjConstructor<T> extends GroupConstructor<ProjPointType<T>> {
new (x: T, y: T, z: T): ProjPointType<T>;
fromAffine(p: AffinePoint<T>): ProjPointType<T>;
fromHex(hex: Hex): ProjPointType<T>;
fromPrivateKey(privateKey: PrivKey): ProjPointType<T>;
normalizeZ(points: ProjPointType<T>[]): ProjPointType<T>[];
}
export type CurvePointsType<T> = BasicWCurve<T> & {
fromBytes?: (bytes: Uint8Array) => AffinePoint<T>;
toBytes?: (c: ProjConstructor<T>, point: ProjPointType<T>, isCompressed: boolean) => Uint8Array;
};
declare function validatePointOpts<T>(curve: CurvePointsType<T>): Readonly<{
readonly nBitLength: number;
readonly nByteLength: number;
readonly Fp: mod.IField<T>;
readonly n: bigint;
readonly h: bigint;
readonly hEff?: bigint | undefined;
readonly Gx: T;
readonly Gy: T;
readonly allowInfinityPoint?: boolean | undefined;
readonly a: T;
readonly b: T;
readonly allowedPrivateKeyLengths?: readonly number[] | undefined;
readonly wrapPrivateKey?: boolean | undefined;
readonly endo?: EndomorphismOpts | undefined;
readonly isTorsionFree?: ((c: ProjConstructor<T>, point: ProjPointType<T>) => boolean) | undefined;
readonly clearCofactor?: ((c: ProjConstructor<T>, point: ProjPointType<T>) => ProjPointType<T>) | undefined;
readonly fromBytes?: ((bytes: Uint8Array) => AffinePoint<T>) | undefined;
readonly toBytes?: ((c: ProjConstructor<T>, point: ProjPointType<T>, isCompressed: boolean) => Uint8Array) | undefined;
readonly p: bigint;
}>;
export type CurvePointsRes<T> = {
CURVE: ReturnType<typeof validatePointOpts<T>>;
ProjectivePoint: ProjConstructor<T>;
normPrivateKeyToScalar: (key: PrivKey) => bigint;
weierstrassEquation: (x: T) => T;
isWithinCurveOrder: (num: bigint) => boolean;
};
export declare const DER: {
Err: {
new (m?: string): {
name: string;
message: string;
stack?: string | undefined;
};
};
_parseInt(data: Uint8Array): {
d: bigint;
l: Uint8Array;
};
toSig(hex: string | Uint8Array): {
r: bigint;
s: bigint;
};
hexFromSig(sig: {
r: bigint;
s: bigint;
}): string;
};
export declare function weierstrassPoints<T>(opts: CurvePointsType<T>): CurvePointsRes<T>;
export interface SignatureType {
readonly r: bigint;
readonly s: bigint;
readonly recovery?: number;
assertValidity(): void;
addRecoveryBit(recovery: number): RecoveredSignatureType;
hasHighS(): boolean;
normalizeS(): SignatureType;
recoverPublicKey(msgHash: Hex): ProjPointType<bigint>;
toCompactRawBytes(): Uint8Array;
toCompactHex(): string;
toDERRawBytes(isCompressed?: boolean): Uint8Array;
toDERHex(isCompressed?: boolean): string;
}
export type RecoveredSignatureType = SignatureType & {
readonly recovery: number;
};
export type SignatureConstructor = {
new (r: bigint, s: bigint): SignatureType;
fromCompact(hex: Hex): SignatureType;
fromDER(hex: Hex): SignatureType;
};
type SignatureLike = {
r: bigint;
s: bigint;
};
export type PubKey = Hex | ProjPointType<bigint>;
export type CurveType = BasicWCurve<bigint> & {
hash: CHash;
hmac: HmacFnSync;
randomBytes: (bytesLength?: number) => Uint8Array;
lowS?: boolean;
bits2int?: (bytes: Uint8Array) => bigint;
bits2int_modN?: (bytes: Uint8Array) => bigint;
};
declare function validateOpts(curve: CurveType): Readonly<{
readonly nBitLength: number;
readonly nByteLength: number;
readonly Fp: mod.IField<bigint>;
readonly n: bigint;
readonly h: bigint;
readonly hEff?: bigint | undefined;
readonly Gx: bigint;
readonly Gy: bigint;
readonly allowInfinityPoint?: boolean | undefined;
readonly a: bigint;
readonly b: bigint;
readonly allowedPrivateKeyLengths?: readonly number[] | undefined;
readonly wrapPrivateKey?: boolean | undefined;
readonly endo?: EndomorphismOpts | undefined;
readonly isTorsionFree?: ((c: ProjConstructor<bigint>, point: ProjPointType<bigint>) => boolean) | undefined;
readonly clearCofactor?: ((c: ProjConstructor<bigint>, point: ProjPointType<bigint>) => ProjPointType<bigint>) | undefined;
readonly hash: ut.CHash;
readonly hmac: HmacFnSync;
readonly randomBytes: (bytesLength?: number | undefined) => Uint8Array;
lowS: boolean;
readonly bits2int?: ((bytes: Uint8Array) => bigint) | undefined;
readonly bits2int_modN?: ((bytes: Uint8Array) => bigint) | undefined;
readonly p: bigint;
}>;
export type CurveFn = {
CURVE: ReturnType<typeof validateOpts>;
getPublicKey: (privateKey: PrivKey, isCompressed?: boolean) => Uint8Array;
getSharedSecret: (privateA: PrivKey, publicB: Hex, isCompressed?: boolean) => Uint8Array;
sign: (msgHash: Hex, privKey: PrivKey, opts?: SignOpts) => RecoveredSignatureType;
verify: (signature: Hex | SignatureLike, msgHash: Hex, publicKey: Hex, opts?: VerOpts) => boolean;
ProjectivePoint: ProjConstructor<bigint>;
Signature: SignatureConstructor;
utils: {
normPrivateKeyToScalar: (key: PrivKey) => bigint;
isValidPrivateKey(privateKey: PrivKey): boolean;
randomPrivateKey: () => Uint8Array;
precompute: (windowSize?: number, point?: ProjPointType<bigint>) => ProjPointType<bigint>;
};
};
export declare function weierstrass(curveDef: CurveType): CurveFn;
/**
* Implementation of the Shallue and van de Woestijne method for any weierstrass curve.
* TODO: check if there is a way to merge this with uvRatio in Edwards; move to modular.
* b = True and y = sqrt(u / v) if (u / v) is square in F, and
* b = False and y = sqrt(Z * (u / v)) otherwise.
* @param Fp
* @param Z
* @returns
*/
export declare function SWUFpSqrtRatio<T>(Fp: mod.IField<T>, Z: T): (u: T, v: T) => {
isValid: boolean;
value: T;
};
/**
* Simplified Shallue-van de Woestijne-Ulas Method
* https://www.rfc-editor.org/rfc/rfc9380#section-6.6.2
*/
export declare function mapToCurveSimpleSWU<T>(Fp: mod.IField<T>, opts: {
A: T;
B: T;
Z: T;
}): (u: T) => {
x: T;
y: T;
};
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