@zlattice/lattice-js/dist/esm/crypto/sm2/ec.js

Lattice blockchain TypeScript SDK with dual module support (CJS + ESM)

import { Field } from '@noble/curves/abstract/modular'; // finite field for mod arithmetics
import { concatBytes } from '@noble/curves/abstract/utils';
import { weierstrass } from '@noble/curves/abstract/weierstrass';
import { ONE } from './bn.js';
import { hmac } from './hmac.js';
import { randomBytes } from './rng.js';
import { sm3 } from './sm3.js';
export const sm2Fp = Field(BigInt('115792089210356248756420345214020892766250353991924191454421193933289684991999'));
export const sm2Curve = weierstrass({
    // sm2: short weierstrass.
    a: BigInt('115792089210356248756420345214020892766250353991924191454421193933289684991996'),
    b: BigInt('18505919022281880113072981827955639221458448578012075254857346196103069175443'),
    Fp: sm2Fp,
    h: ONE,
    n: BigInt('115792089210356248756420345214020892766061623724957744567843809356293439045923'),
    Gx: BigInt('22963146547237050559479531362550074578802567295341616970375194840604139615431'),
    Gy: BigInt('85132369209828568825618990617112496413088388631904505083283536607588877201568'),
    hash: sm3,
    hmac: (key, ...msgs) => hmac(sm3, key, concatBytes(...msgs)),
    randomBytes,
});
// 有限域运算
export const field = Field(BigInt(sm2Curve.CURVE.n));
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