@azure/keyvault-keys
Version:
Isomorphic client library for Azure KeyVault's keys.
55 lines • 1.8 kB
JavaScript
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
import { createHash as cryptoCreateHash, createVerify as cryptoCreateVerify, randomBytes as cryptoRandomBytes, } from "node:crypto";
/**
* @internal
* Mapping between signature algorithms and their corresponding hash algorithms. Externally used for testing.
**/
const algorithmToHashAlgorithm = {
ES256: "SHA256",
ES256K: "SHA256",
PS256: "SHA256",
RS256: "SHA256",
ES384: "SHA384",
PS384: "SHA384",
RS384: "SHA384",
ES512: "SHA512",
PS512: "SHA512",
RS512: "SHA512",
};
/**
* @internal
* Use the platform-local hashing functionality
*/
export async function createHash(algorithm, data) {
const hashAlgorithm = algorithmToHashAlgorithm[algorithm];
if (!hashAlgorithm) {
throw new Error(`Invalid algorithm ${algorithm} passed to createHash. Supported algorithms: ${Object.keys(algorithmToHashAlgorithm).join(", ")}`);
}
const hash = cryptoCreateHash(hashAlgorithm);
hash.update(Buffer.from(data));
const digest = hash.digest();
return digest;
}
/**
* @internal
* Use the platform-local verify functionality
*/
export function createVerify(algorithm, data) {
const verifyAlgorithm = algorithmToHashAlgorithm[algorithm];
if (!verifyAlgorithm) {
throw new Error(`Invalid algorithm ${algorithm} passed to createHash. Supported algorithms: ${Object.keys(algorithmToHashAlgorithm).join(", ")}`);
}
const verifier = cryptoCreateVerify(verifyAlgorithm);
verifier.update(Buffer.from(data));
verifier.end();
return verifier;
}
/**
* @internal
* Use the platform-local randomBytes functionality
*/
export function randomBytes(length) {
return cryptoRandomBytes(length);
}
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