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

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

import { Curves } from "../common/constants.js";
import { NIST } from "./crypto-secp256k1.js";
import { GM } from "./crypto-sm2p256v1.js";
const cryptoServiceMap = new Map();
/**
 * Create a new crypto service instance based on the curve
 *
 * @param curve The curve, like `Curves.Secp256k1` or `Curves.Sm2p256v1`
 * @returns The crypto service
 */
export function createCrypto(curve) {
    if (cryptoServiceMap.has(curve)) {
        return cryptoServiceMap.get(curve);
    }
    switch (curve) {
        case Curves.Secp256k1:
            cryptoServiceMap.set(curve, new NIST());
            return cryptoServiceMap.get(curve);
        case Curves.Sm2p256v1:
            cryptoServiceMap.set(curve, new GM());
            return cryptoServiceMap.get(curve);
        default:
            throw new Error(`Unsupported curve: ${curve}`);
    }
}
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