RIPEMD128 (RACE Integrity Primitives Evaluation Message Digest) is a cryptographic hash function that generates a fixed-size message digest from input data. is a cryptographic function that generates a 128-bit output, known as a hash value. It was created by Hans Dobbertin, Antoon Bosselaers, and Bart Preneel to enhance the RIPEMD-160 algorithm by providing faster performance while preserving a similar level of security. However, it is less commonly used when compared to other algorithms like SHA-256 and SHA-3.

There are a plethora of online RIPEMD-128 hash calculator tools available, so the best one for you will depend on your specific needs.

A retrospective overview of RIPEMD 128

The notation RIPEMD represents a group of distinct hash functions that are related to the MD-SHA-family. The first representative of this group was RIPEMD-0, which was recommended in 1992 by the European RACE Integrity Primitives Evaluation (RIPE) consortium. The compression function of RIPEMD-0 consists of two MD4-like functions that are computed in parallel, with 48 steps in total. 

However, early cryptanalysis by Dobbertin on a reduced version of the compression function indicated that RIPEMD-0 was a weak function, and this was later confirmed by Wang et al. who showed that a collision could be found for the full RIPEMD-0 hash function with as few as 216 computations.

In 1996, to address the cryptanalysis advances on MD4 and the compression function of RIPEMD-0, the original RIPEMD-0 was reinforced by Dobbertin, Bosselaers, and Preneel. This led to the creation of two stronger primitives, RIPEMD-128 and RIPEMD-160, which have 128/160-bit output and 64/80 steps, respectively. Two other less-known variants, RIPEMD-256 and RIPEMD-320 were also proposed, but they are claimed to have a security level equivalent to an ideal hash function with a twice smaller output size.
How is the RIPEMD 128 Hash Calculator useful?

RIPEMD is a set of cryptographic hash functions that are commonly used to create a condensed representation of a message or piece of data known as a message digest. Some of the main uses of RIPEMD include:

● Verifying the integrity of data by comparing the computed message digest with the one provided by the sender, such as a downloaded file.

● Creating digital signatures to verify the sender's identity and ensure the integrity of the message.

● Using short hash values as keys for quick retrieval of records in database indexing

● Securely storing passwords in databases by storing the hashed version of the password
Size of RIPEMD

The size of a RIPEMD hash depends on the specific version of the algorithm. The original RIPEMD algorithm generates a 128-bit hash, while the expanded version, RIPEMD-160, generates a 160-bit hash. The increase in the number of bits in the hash makes it more resistant to collision attacks. The output of RIPEMD-160 is always 20 bytes (160 bits) in size, regardless of the size of the input message.

1. LambdaTest’s RIPEMD128 Hash Generator

LambdaTest is a popular cross-browser testing platform that allows developers to test their web pages and mobile applications on different browsers, devices and operating systems. With LambdaTest, you can perform automated browser testing using different frameworks like Selenium, Cypress, Playwright, and more.
 This helps to ensure that their pages and applications are compatible with different platforms. It also provides a variety of useful tools for developers. One such tool is the RIPEMD128 hash generator.

RIPEMD-128 is a tool for web developers and programmers that generates a checksum and hash for sensitive data, such as passwords and personal information. This free online utility encrypts the data by creating a 128-bit message digest from any amount of input.

To find the RIPEMD hash of a file, you can follow these simple steps:

1. Input the file into the "Enter Value" field.
2. Select "Calculate RipeMD128" from the drop-down menu.
3. The resulting hash will be displayed in the "Output" field.

The original RIPEMD algorithm generates a 128-bit hash, but it was later expanded to produce a 160-bit hash in RIPEMD-160, which increases the number of bits in the hash and makes it more resistant to collision attacks. The size of the RIPEMD-160 hash is 160 bits, which provides a high level of security as it is extremely difficult to find two different messages that produce the same hash. The size of the hash output is always 20 bytes (160 bits), regardless of the size of the input message.

2. RipeMD128 Hash Generator by Browserling

Browserling is a web-based cross-browser testing service that allows developers to test their web pages and applications in multiple browsers and platforms. 

The RipeMD-128 checksum calculator by Browserling is a simple tool for web developers and programmers that allows you to easily calculate the RipeMD-128 digest of your text. Simply paste your text into the form, press the "Calculate RipeMD-128" button, and get the digest. The calculator is easy to use, free of ads, and gives you a quick and clean RipeMD-128 digest.

3. Online hash calculation RIPEMD128 Algorithm by Conversion-Tool.com

To calculate the RIPEMD128 hash, you can use an online tool that allows you to input a file or text and then click on "Start conversion" to generate the hash. You can also enter a HMAC key if desired. Once the hash is calculated, you can download the hashed data. Additionally, you can use the tools to generate other types of hashes, like Adler32, CRC-32, MD5, SHA-1, and more.

4.  RIPEMD128 Converter by ONLINE-CONVERT.COM

This online tool allows you to encrypt your sensitive data using the RIPEMD-128-bit hash algorithm. You can also use it to generate a checksum of a file, which can be used to detect any changes to the data later on. To enhance the security of your hash, you can also choose to add a shared key.

5. SecurityExploded's Hash Generator

SecurityExploded's Hash Generator is a versatile and user-friendly tool that allows you to easily generate hashes for various algorithms. It supports a wide range of hashing algorithms, including MD5, SHAxxx, Base64, LM, NTLM, CRC32, ROT13, RIPEMD, ALDER32, HAVAL, and more. This tool is one of the most comprehensive hashing tools available.

It can be used for various purposes, such as generating a hash for a specific piece of text by simply copying and pasting it into the tool or creating a file hash quickly by using the Hash Generator option in the right-click context menu in File Explorer. You can also drag and drop a file into the tool, and it will start working immediately.

6. OpenHashTab’s Hash Generator

OpenHashTab is a unique tool for generating file hashes that integrates seamlessly with your file explorer. Instead of using a separate interface, it adds a tab to the right-click context menu of your files. This allows you to generate hashes for your files by simply right-clicking on them and selecting "Hashes" from the menu. 

By default, OpenHashTab generates hashes for MD5, SHA1, SHA-256, and SHA-512. However, you can also add support for 22 additional hashes, including RIPEMD, BLAKE, and WHIRLPOOL, by going to "Hashes,"  selecting "Settings," and then checking the hashes you want to add and pressing OK.

7. Online RIPEMD128 Hash Calculator by Md5Calc.com

You can access this page directly through your browser's address bar by typing the string you want to encode with the algorithm. Another feature is that you can specify "json" or "plain" mode in the URL, and the response will only include the HASH. There is no restriction on cross-origin resource sharing (CORS), so that you can easily use the hash calculator in your JavaScript applications through AJAX.

8. Bfotool’s RIPEMD 128 Hash Generator

The Ripemd128 hash function can be used to generate a 128-bit hash for the text entered in the Input window. This function is based on the Ripemd128 standards and was first introduced in a Russian national standard. It is a cryptographic hash function that is widely used for its security and reliability.

9. LAZE SOFTWARE’S Hash Calculator

Laze software Hash Calculator is a tool that allows you to calculate hash values, also known as message digests, using various hash algorithms. The tool supports various algorithms such as RIPEMD 128, MD5, SHA1, SHA256, and others. Additionally, the software can also be used to calculate HMAC hash values, which provide an added layer of security by combining a hash algorithm with a secret key. This can be useful for verifying the integrity of data or for creating digital signatures.

10. Tools4noobs’ RIPEMD 128 hash calculator

It is a tool that allows you to calculate the RIPEMD 128 hash of a text or a file. It is a user-friendly tool that can be used to check the integrity of a file or verify a password. You can input the text or upload a file, and the tool will generate the corresponding hash. It is available online and can be used for free. It also supports other algorithms like md5, sha1, and sha256.

Conclusion 

Checking the hash of a downloaded file is a simple and efficient way to ensure that the file is safe and has not been tampered with. If the downloaded file is malicious or has been altered in any way, the resulting hash will differ from the one provided by the website. However, not all websites offer the option to check the file hash, and many people do not take the time to verify the integrity of their downloads.

Additionally, some websites use integrated driver signing or a Certificate Authority to sign their software, which allows the operating system to block the installation or execution of software that does not match an official signature. Even though these methods are intended to provide security, some people still prefer to cross-reference their software using a file hash generation and checking tool.

As for the security issues, the original RIPEMD algorithm with a 128-bit hash is still considered a secure hash function and is widely used, but for critical security concerns, more advanced hash functions such as RIPEMD-160, SHA-256, SHA-3, and BLAKE2 are recommended.