Releasing rainbow tables to accelerate protocol deprecation
https://cloud.google.com/blog/topics/threat-intelligence/net-ntlmv1-deprecation-rainbow-tables
#HackerNews #Releasing #rainbow #tables #to #accelerate #protocol #deprecation #threatintelligence #cybersecurity #rainbowtables #netntlmv1 #protocoldeprecation
"The problem with rainbow tables is that they have uses¹, but if you're unsure whether you need them, then you really don't. And this creates a weird effect where the only people who use them ... don't need to ask about them." ~ Uly
Next time password cracking comes up conversationally and someone says "And can't you can just use rainbow tables" ... send them this.
https://hashcat.net/faq/rainbowtables
tl;dr They are only worthwhile in a very specific (and rare) set of circumstances.
La segunda parte del artículo de #criptografia para #dummies ya está disponible. Os contamos como funcionan los principales ataques y que se puede hacer para remediarlos
#ROOR7 #cryptography #seguridad #security #mitm #rainbowtables #replay #cyber
https://ibolcode.net/roor/2024-05-criptografia-para-dummies--parte-ii
<p>En esta segunda entrega de nuestra introducción a la criptografía para meros mortales vamos a explorar la criptografía desde un punto de vista más práctico. Veremos distintos tipos de ataques tanto para evitar las medidas de seguridad criptográficas de un determinado sistema, como para romper claves si fuera necesario.</p>
New #Approach in the #RainbowTables Method for Human-Like #Passwords #2020
https://ieeexplore.ieee.org/document/9039311
not #openaccess :`(
This paper represents a new approach to rainbow tables, a method of password recovery that was originally developed by Martin E. Hellman and then improved by P. Oechslin, so most of its implementations use Oechslin's modification. An improvement represented in this work mostly lies in the reduction function, which uses character statistics to generate more "human-like" passwords. Though it generates passwords 5 to 10 times slower than reduction function, which uses direct dependency between hash bytes and the inserted characters, it significantly increases common efficiency in memory (8 to 30 times less memory needed to store these tables) and successful "human-like" passwords recovery probability, while these tables are generated by the same time as tables with the use of "random" reduction function.
#Rainbowtables #explained How they work and why they’re (mostly) #obsolete
#Rainbowtables are #precomputed tables of #hashes used to #crack #passwords #Ophcrack is a free open-source #program that uses rainbow tables to crack #Windows log-in passwords. It can import hashes from a variety of formats, including dumping directly from the #SAM files of Windows, and can be run via the #commandline or using the program’s #gui
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