| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.secp256k1Expand = void 0;
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| 4 | const secp256k1_1 = require("@noble/curves/secp256k1");
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| 5 | const util_1 = require("@polkadot/util");
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| 6 | const wasm_crypto_1 = require("@polkadot/wasm-crypto");
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| 7 | const bn_js_1 = require("../bn.js");
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| 8 | function secp256k1Expand(publicKey, onlyJs) {
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| 9 | if (![33, 65].includes(publicKey.length)) {
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| 10 | throw new Error(`Invalid publicKey provided, received ${publicKey.length} bytes input`);
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| 11 | }
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| 12 | if (publicKey.length === 65) {
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| 13 | return publicKey.subarray(1);
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| 14 | }
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| 15 | if (!util_1.hasBigInt || (!onlyJs && (0, wasm_crypto_1.isReady)())) {
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| 16 | return (0, wasm_crypto_1.secp256k1Expand)(publicKey).subarray(1);
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| 17 | }
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| 18 | const { px, py } = secp256k1_1.secp256k1.ProjectivePoint.fromHex(publicKey);
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| 19 | return (0, util_1.u8aConcat)((0, util_1.bnToU8a)(px, bn_js_1.BN_BE_256_OPTS), (0, util_1.bnToU8a)(py, bn_js_1.BN_BE_256_OPTS));
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| 20 | }
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| 21 | exports.secp256k1Expand = secp256k1Expand;
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