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08e5606c34
Previously we had many different code paths all handling digests in different places, all with wildly different digest support. This commit rewrites this to use a single digest handling mechanism for all digest operations. It adds various aliases for digest algorithms, like node does. For example `sha1WithRSAEncryption` is an alias for `sha1`. It also adds support for `md5-sha1` digests in various places.
143 lines
3.3 KiB
TypeScript
143 lines
3.3 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// TODO(petamoriken): enable prefer-primordials for node polyfills
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// deno-lint-ignore-file prefer-primordials
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import { op_node_pbkdf2, op_node_pbkdf2_async } from "ext:core/ops";
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import { Buffer } from "node:buffer";
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import { HASH_DATA } from "ext:deno_node/internal/crypto/types.ts";
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import {
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validateFunction,
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validateString,
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validateUint32,
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} from "ext:deno_node/internal/validators.mjs";
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import { getArrayBufferOrView } from "ext:deno_node/internal/crypto/keys.ts";
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import {
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ERR_CRYPTO_INVALID_DIGEST,
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ERR_OUT_OF_RANGE,
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} from "ext:deno_node/internal/errors.ts";
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export const MAX_ALLOC = Math.pow(2, 30) - 1;
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export const MAX_I32 = 2 ** 31 - 1;
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export type NormalizedAlgorithms =
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| "md5"
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| "ripemd160"
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| "sha1"
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| "sha224"
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| "sha256"
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| "sha384"
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| "sha512";
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export type Algorithms =
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| "md5"
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| "ripemd160"
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| "rmd160"
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| "sha1"
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| "sha224"
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| "sha256"
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| "sha384"
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| "sha512";
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function check(
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password: HASH_DATA,
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salt: HASH_DATA,
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iterations: number,
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keylen: number,
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digest: string,
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) {
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validateString(digest, "digest");
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password = getArrayBufferOrView(password, "password", "buffer");
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salt = getArrayBufferOrView(salt, "salt", "buffer");
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validateUint32(iterations, "iterations", true);
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validateUint32(keylen, "keylen");
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if (iterations > MAX_I32) {
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throw new ERR_OUT_OF_RANGE("iterations", `<= ${MAX_I32}`, iterations);
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}
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if (keylen > MAX_I32) {
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throw new ERR_OUT_OF_RANGE("keylen", `<= ${MAX_I32}`, keylen);
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}
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return { password, salt, iterations, keylen, digest };
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}
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/**
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* @param iterations Needs to be higher or equal than zero
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* @param keylen Needs to be higher or equal than zero but less than max allocation size (2^30)
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* @param digest Algorithm to be used for encryption
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*/
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export function pbkdf2Sync(
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password: HASH_DATA,
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salt: HASH_DATA,
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iterations: number,
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keylen: number,
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digest: string,
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): Buffer {
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({ password, salt, iterations, keylen, digest } = check(
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password,
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salt,
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iterations,
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keylen,
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digest,
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));
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digest = digest.toLowerCase() as NormalizedAlgorithms;
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const DK = new Uint8Array(keylen);
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if (!op_node_pbkdf2(password, salt, iterations, digest, DK)) {
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throw new ERR_CRYPTO_INVALID_DIGEST(digest);
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}
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return Buffer.from(DK);
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}
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/**
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* @param iterations Needs to be higher or equal than zero
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* @param keylen Needs to be higher or equal than zero but less than max allocation size (2^30)
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* @param digest Algorithm to be used for encryption
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*/
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export function pbkdf2(
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password: HASH_DATA,
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salt: HASH_DATA,
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iterations: number,
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keylen: number,
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digest: string,
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callback: (err: Error | null, derivedKey?: Buffer) => void,
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) {
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if (typeof digest === "function") {
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callback = digest;
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digest = undefined as unknown as string;
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}
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({ password, salt, iterations, keylen, digest } = check(
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password,
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salt,
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iterations,
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keylen,
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digest,
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));
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validateFunction(callback, "callback");
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digest = digest.toLowerCase() as NormalizedAlgorithms;
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op_node_pbkdf2_async(
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password,
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salt,
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iterations,
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digest,
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keylen,
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).then(
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(DK) => callback(null, Buffer.from(DK)),
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)
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.catch((err) => callback(err));
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}
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export default {
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MAX_ALLOC,
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pbkdf2,
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pbkdf2Sync,
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};
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