89 lines
3.1 KiB
TypeScript
89 lines
3.1 KiB
TypeScript
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/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */
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import { AffinePoint, BasicCurve, Group, GroupConstructor } from './curve.js';
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import { FHash, Hex } from './utils.js';
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export type CurveType = BasicCurve<bigint> & {
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a: bigint;
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d: bigint;
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hash: FHash;
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randomBytes: (bytesLength?: number) => Uint8Array;
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adjustScalarBytes?: (bytes: Uint8Array) => Uint8Array;
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domain?: (data: Uint8Array, ctx: Uint8Array, phflag: boolean) => Uint8Array;
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uvRatio?: (u: bigint, v: bigint) => {
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isValid: boolean;
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value: bigint;
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};
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prehash?: FHash;
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mapToCurve?: (scalar: bigint[]) => AffinePoint<bigint>;
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};
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declare function validateOpts(curve: CurveType): Readonly<{
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readonly nBitLength: number;
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readonly nByteLength: number;
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readonly Fp: import("./modular.js").IField<bigint>;
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readonly n: bigint;
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readonly h: bigint;
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readonly hEff?: bigint;
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readonly Gx: bigint;
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readonly Gy: bigint;
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readonly allowInfinityPoint?: boolean;
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readonly a: bigint;
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readonly d: bigint;
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readonly hash: FHash;
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readonly randomBytes: (bytesLength?: number) => Uint8Array;
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readonly adjustScalarBytes?: (bytes: Uint8Array) => Uint8Array;
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readonly domain?: (data: Uint8Array, ctx: Uint8Array, phflag: boolean) => Uint8Array;
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readonly uvRatio?: (u: bigint, v: bigint) => {
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isValid: boolean;
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value: bigint;
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};
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readonly prehash?: FHash;
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readonly mapToCurve?: (scalar: bigint[]) => AffinePoint<bigint>;
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readonly p: bigint;
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}>;
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export interface ExtPointType extends Group<ExtPointType> {
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readonly ex: bigint;
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readonly ey: bigint;
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readonly ez: bigint;
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readonly et: bigint;
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get x(): bigint;
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get y(): bigint;
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assertValidity(): void;
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multiply(scalar: bigint): ExtPointType;
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multiplyUnsafe(scalar: bigint): ExtPointType;
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isSmallOrder(): boolean;
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isTorsionFree(): boolean;
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clearCofactor(): ExtPointType;
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toAffine(iz?: bigint): AffinePoint<bigint>;
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toRawBytes(isCompressed?: boolean): Uint8Array;
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toHex(isCompressed?: boolean): string;
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}
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export interface ExtPointConstructor extends GroupConstructor<ExtPointType> {
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new (x: bigint, y: bigint, z: bigint, t: bigint): ExtPointType;
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fromAffine(p: AffinePoint<bigint>): ExtPointType;
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fromHex(hex: Hex): ExtPointType;
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fromPrivateKey(privateKey: Hex): ExtPointType;
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}
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export type CurveFn = {
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CURVE: ReturnType<typeof validateOpts>;
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getPublicKey: (privateKey: Hex) => Uint8Array;
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sign: (message: Hex, privateKey: Hex, options?: {
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context?: Hex;
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}) => Uint8Array;
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verify: (sig: Hex, message: Hex, publicKey: Hex, options?: {
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context?: Hex;
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zip215: boolean;
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}) => boolean;
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ExtendedPoint: ExtPointConstructor;
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utils: {
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randomPrivateKey: () => Uint8Array;
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getExtendedPublicKey: (key: Hex) => {
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head: Uint8Array;
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prefix: Uint8Array;
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scalar: bigint;
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point: ExtPointType;
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pointBytes: Uint8Array;
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};
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};
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};
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export declare function twistedEdwards(curveDef: CurveType): CurveFn;
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export {};
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//# sourceMappingURL=edwards.d.ts.map
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