Registry / auth-security / md5-typescript

md5-typescript

library1.0.5jsnpmunverified

The `md5-typescript` package (version 1.0.5) offers a straightforward, zero-dependency implementation of the MD5 hashing algorithm, primarily designed for TypeScript environments, including Angular applications. It enables developers to generate MD5 hashes from string inputs using a simple static method. However, it is crucial to note that the package was last published over eight years ago (March 3, 2018), indicating it is no longer actively maintained. While MD5 is fast and simple, it is cryptographically weak due to known collision vulnerabilities, making it entirely unsuitable for security-sensitive applications such as password hashing, digital signatures, or verifying data integrity against malicious tampering. This library should primarily be considered for non-cryptographic checksums or for compatibility with legacy systems that mandate MD5 usage. For any new development requiring secure hashing, modern alternatives like SHA-256, SHA-3, bcrypt, or Argon2 are strongly recommended.

auth-security

npm install md5-typescript

github ↗package ↗

INSTALL

IMPORT

SIG · MD5-TYPESCRIPT

md5-typescript

auth-securityjavascriptv1.0.5

Install

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Import

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Disk

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Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Md5

✓ import { Md5 } from 'md5-typescript';

✗ const Md5 = require('md5-typescript');

The library is designed for ES modules and TypeScript. Direct `require` calls are incorrect and will likely result in runtime errors in modern environments.

Md5.init()

✓ Md5.init('your_string');

✗ new Md5().init('your_string');

The primary hashing method `init` is a static method on the `Md5` class, not an instance method.

Demonstrates how to import the `Md5` class and use its static `init` method to hash strings, including a critical warning about MD5's security weaknesses.

import { Md5 } from 'md5-typescript'; // Example 1: Basic string hashing const testString = "hello world"; const md5Hash = Md5.init(testString); console.log(`MD5 hash of "${testString}": ${md5Hash}`); // Expected: 5d41402abc4b2a76b9719d911017c592 // Example 2: Hashing another string const anotherString = "typescript md5 example"; const anotherMd5Hash = Md5.init(anotherString); console.log(`MD5 hash of "${anotherString}": ${anotherMd5Hash}`); // Example 3: Demonstrating collision *vulnerability* conceptually (not a real collision generated here, just another hash) const sensitiveData = "mysecretpassword123"; const sensitiveHash = Md5.init(sensitiveData); console.warn(`Warning: Do NOT use MD5 for sensitive data like "${sensitiveData}"! Hash: ${sensitiveHash}`); console.warn("MD5 is cryptographically broken and vulnerable to collision attacks, making it unsuitable for security purposes.");

Debug

Known issues

breakingMD5 is cryptographically broken: The MD5 algorithm is known to be vulnerable to collision attacks, where two different inputs can produce the same hash output, undermining data integrity. It is also too fast for secure password hashing, making it susceptible to brute-force attacks. Therefore, it is unsuitable for security-sensitive applications like password storage, digital signatures, or verifying data authenticity against malicious tampering.

fix

For security-sensitive hashing, migrate to modern cryptographic hash functions such as SHA-256, SHA-3, bcrypt, scrypt, or Argon2. Use MD5 only for non-cryptographic checksums where collision resistance is not critical.

affects: >=1.0.0

gotchaProject Abandoned: The `md5-typescript` package has not been updated for over 8 years (last published March 3, 2018). This means it receives no security patches, bug fixes, or new features, potentially leaving your application vulnerable or encountering unaddressed issues.

fix

Consider migrating to actively maintained MD5 implementations (e.g., `ts-md5` or `crypto-js` if MD5 is absolutely necessary and maintained) or, ideally, to more secure hashing algorithms as mentioned above.

affects: >=1.0.0

gotchaInconsistent MD5 output due to encoding: Different MD5 implementations or library versions might produce varying hashes for the same string if character encoding (e.g., UTF-8 vs. ASCII) is not explicitly and consistently handled, leading to hash mismatches.

fix

Ensure consistent character encoding (e.g., explicitly convert to UTF-8 bytes) before hashing across all environments and implementations. If comparing hashes from different systems, verify their expected input encoding.

affects: >=1.0.0

Errors

Common errors & fixes

TypeError: Cannot read properties of undefined (reading 'init') OR Md5 is not defined

The `Md5` class is imported incorrectly or the library itself is not loaded/packaged properly, leading to `Md5` being `undefined` or not having an `init` method.

fix

Ensure you are importing `Md5` as a named export (`import { Md5 } from 'md5-typescript';`) and correctly calling its static method (`Md5.init('your_string');`). Verify `md5-typescript` is installed and accessible in your build pipeline.

Md5 module is not recognized (often in older Angular/SystemJS setups)

The module loader (e.g., SystemJS) is not configured to correctly locate and resolve the `md5-typescript` package.

fix

For Angular/SystemJS environments, configure `systemjs.config.js` to map `md5-typescript` to its `node_modules` path and specify the main file. For example: `map: { 'md5-typescript': 'node_modules/md5-typescript' }, packages: { 'md5-typescript': { main: 'md5.js' } }`. Adjust the `main` file path if the library's internal structure differs.

MD5 hash mismatch between frontend and backend/other systems for the same input string.

Inconsistent character encoding (e.g., UTF-8 vs. ASCII, or different string normalizations) applied to the input string before hashing in different environments.

fix

Standardize the input string encoding to UTF-8 (or another agreed-upon encoding) across all systems before computing the MD5 hash. Explicitly convert strings to a byte array with a specified encoding before passing them to the hashing function.

Upgrade

Version history

1.0.5latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

9 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/Hipparch/Md5-typescript ↗

packagehttps://www.npmjs.com/package/md5-typescript ↗