tssrp6a
Version:
SRP6a client and server lib
43 lines • 1.94 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.crossEnvCrypto = void 0;
try {
const webcrypto = (typeof window !== "undefined" && window.crypto) ||
// eslint-disable-next-line @typescript-eslint/no-var-requires
require("crypto").webcrypto; // Node v15+ has webcrypto built in, lets use that if we can
if (webcrypto) {
if (!webcrypto.subtle) {
throw new Error("Crypto.Subtle is undefined. Make sure you are using HTTPS in a compatible browser.");
}
const digestFunctionToHashFunction = (algorithm) => (data) => webcrypto.subtle.digest(algorithm, data);
exports.crossEnvCrypto = {
randomBytes: webcrypto.getRandomValues.bind(webcrypto),
hashFunctions: {
SHA1: digestFunctionToHashFunction("SHA-1"),
SHA256: digestFunctionToHashFunction("SHA-256"),
SHA384: digestFunctionToHashFunction("SHA-384"),
SHA512: digestFunctionToHashFunction("SHA-512"),
},
};
}
else {
// otherwise lets use node's crypto
// eslint-disable-next-line @typescript-eslint/no-var-requires
const nodeCrypto = require("crypto");
const nodeCreateHashToHashFunction = (algorithm) => (data) => nodeCrypto.createHash(algorithm).update(data).digest().buffer;
exports.crossEnvCrypto = {
randomBytes: nodeCrypto.randomFillSync,
hashFunctions: {
SHA1: nodeCreateHashToHashFunction("sha1"),
SHA256: nodeCreateHashToHashFunction("sha256"),
SHA384: nodeCreateHashToHashFunction("sha384"),
SHA512: nodeCreateHashToHashFunction("sha512"),
},
};
}
}
catch (e) {
console.error(e);
throw new Error("No suitable crypto library was found. You may need a polyfill.");
}
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