22 lines
823 B
TypeScript
22 lines
823 B
TypeScript
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// Copyright (C) 2026 Whiterun LLC,
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// This software is licensed under the GNU Lesser General Public License (LGPL), version 3.0 or later.
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// A copy of the license can be found in the LICENSE file or at https://www.gnu.org/licenses/lgpl-3.0.html
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import { binToHex, secp256k1 } from "@bitauth/libauth";
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import { unwrap } from "./primitives.js";
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export function deriveNostrPublicKey(privateKey: Uint8Array): string {
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const publicKeyCompressed = unwrap(
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secp256k1.derivePublicKeyCompressed(privateKey),
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);
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const publicKeyNostr = publicKeyCompressed.slice(1);
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return binToHex(publicKeyNostr);
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}
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export function deriveNostrPublicKeyBytes(privateKey: Uint8Array): Uint8Array {
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const publicKeyCompressed = unwrap(
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secp256k1.derivePublicKeyCompressed(privateKey),
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);
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return publicKeyCompressed.slice(1);
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}
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