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32 lines
1.3 KiB
32 lines
1.3 KiB
import { COSEKEYS, isCOSECrv, isCOSEPublicKeyEC2, isCOSEPublicKeyOKP, isCOSEPublicKeyRSA, } from '../../cose.js';
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import { verifyEC2 } from './verifyEC2.js';
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import { verifyRSA } from './verifyRSA.js';
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import { verifyOKP } from './verifyOKP.js';
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import { unwrapEC2Signature } from './unwrapEC2Signature.js';
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/**
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* Verify signatures with their public key. Supports EC2 and RSA public keys.
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*/
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export function verify(opts) {
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const { cosePublicKey, signature, data, shaHashOverride } = opts;
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if (isCOSEPublicKeyEC2(cosePublicKey)) {
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const crv = cosePublicKey.get(COSEKEYS.crv);
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if (!isCOSECrv(crv)) {
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throw new Error(`unknown COSE curve ${crv}`);
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}
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const unwrappedSignature = unwrapEC2Signature(signature, crv);
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return verifyEC2({
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cosePublicKey,
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signature: unwrappedSignature,
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data,
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shaHashOverride,
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});
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}
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else if (isCOSEPublicKeyRSA(cosePublicKey)) {
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return verifyRSA({ cosePublicKey, signature, data, shaHashOverride });
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}
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else if (isCOSEPublicKeyOKP(cosePublicKey)) {
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return verifyOKP({ cosePublicKey, signature, data });
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}
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const kty = cosePublicKey.get(COSEKEYS.kty);
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throw new Error(`Signature verification with public key of kty ${kty} is not supported by this method`);
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}
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