hash - Why did MD4 replace MD2? - Cryptography Stack Exchange
Feb 18, 2019 · MD4 replaced MD2 despite the fact that MD4 is more badly broken. Even MD5, an improvement upon MD4, is more badly broken than MD2 is! The best collision attack against …
md4 - Why does a broken hash function undermine an HMAC?
Apr 9, 2013 · Actually, HMAC might still be secure for a hash function that is broken (with respect to the requirements of a cryptographic hash function, such as primary preimage resistance, …
terminology - The Collision Differential for MD4 - a question on ...
Jul 8, 2018 · In the MD4 algorithm, the message which is being hashed is split into a series of 512-bit blocks. The collision attack which you reference forms a collision in a single block. …
How is SHA1 different from MD5? - Cryptography Stack Exchange
Aug 26, 2014 · MD5 and SHA-1 have a lot in common; SHA-1 was clearly inspired on either MD5 or MD4, or both (SHA-1 is a patched version of SHA-0, which was published in 1993, while …
How were the constants chosen in round 2 and 3 in MD4?
Mar 1, 2019 · Just reading Ron Rivest's explanation of MD4 the hash uses two round constants one $ \text{5A827999}$ on round $2$ and the other $\text{6ED9EBA1}$ on round $3$. I think …
What Happened to MD3 in Rivest's Series of Hash Functions?
Jan 22, 2024 · M.J.B. Robshaw, “MD2, MD4, MD5, SHA, and Other Hash Functions,” Technical Report TR–101, Version 3.0, RSA Laboratories, Jul 1994. I couldn't find a soft copy at a quick …
hash - Is the first version of the Message-Digest algorithm by …
Aug 31, 2013 · It suggests MD1 as such never existed, but was instead just MD (and was never published) and that MD3 was a failed experiment; apparently there exists a specification …
RIPEMD versus SHA-x, what are the main pros and cons?
Initially there was MD4, then MD5; MD5 was designed later, but both were published as open standards simultaneously. MD5 had been designed because of suspected weaknesses in …
What's the state of the art attack to get the first pre-image on MD4?
The latest I know about is indeed "MD4 is Not One-Way."by Gaëtan Leurent (PDF) FSE 2008.Some of the more interesting and more recent publications to check on are "Advanced …
collision resistance - Is the HMAC of a broken hash such as MD2, …
Feb 10, 2021 · However, the story is not finished There: In 2006, Jongsung Kim, Alex Biryukov, Bart Preneel, and Seokhie Hong showed that they can distinguish HMAC if instantiated with …