import { COSEALG } from '../../cose.js'; /** * Convert a COSE alg ID into a corresponding key algorithm string value that WebCrypto APIs expect * * Unless otherwise specified, mappings were referenced from * https://w3c.github.io/webcrypto/#jwk-mapping-alg */ export function mapCoseAlgToWebCryptoKeyAlgName(alg) { if ([COSEALG.EdDSA].indexOf(alg) >= 0) { return 'Ed25519'; } else if ([COSEALG.ES256, COSEALG.ES384, COSEALG.ES512, COSEALG.ES256K].indexOf(alg) >= 0) { return 'ECDSA'; } else if ([COSEALG.RS256, COSEALG.RS384, COSEALG.RS512, COSEALG.RS1].indexOf(alg) >= 0) { return 'RSASSA-PKCS1-v1_5'; } else if ([COSEALG.PS256, COSEALG.PS384, COSEALG.PS512].indexOf(alg) >= 0) { return 'RSA-PSS'; } else if ([COSEALG.ML_DSA_44].indexOf(alg) >= 0) { // https://wicg.github.io/webcrypto-modern-algos/#ml-dsa-registration return 'ML-DSA-44'; } else if ([COSEALG.ML_DSA_65].indexOf(alg) >= 0) { // https://wicg.github.io/webcrypto-modern-algos/#ml-dsa-registration return 'ML-DSA-65'; } else if ([COSEALG.ML_DSA_87].indexOf(alg) >= 0) { // https://wicg.github.io/webcrypto-modern-algos/#ml-dsa-registration return 'ML-DSA-87'; } throw new Error(`Could not map COSE alg value of ${alg} to a WebCrypto key alg name`); }