21 lines
699 B
Plaintext
21 lines
699 B
Plaintext
import { COSEALG } from '../../cose.js';
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/**
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* Convert a COSE alg ID into a corresponding string value that WebCrypto APIs expect
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*/
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export function mapCoseAlgToWebCryptoAlg(alg) {
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if ([COSEALG.RS1].indexOf(alg) >= 0) {
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return 'SHA-1';
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}
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else if ([COSEALG.ES256, COSEALG.PS256, COSEALG.RS256].indexOf(alg) >= 0) {
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return 'SHA-256';
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}
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else if ([COSEALG.ES384, COSEALG.PS384, COSEALG.RS384].indexOf(alg) >= 0) {
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return 'SHA-384';
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}
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else if ([COSEALG.ES512, COSEALG.PS512, COSEALG.RS512, COSEALG.EdDSA].indexOf(alg) >=
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0) {
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return 'SHA-512';
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}
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throw new Error(`Could not map COSE alg value of ${alg} to a WebCrypto alg`);
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}
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