SHA-256 produces a fixed 256-bit output from an input of any size, and Bitcoin applies it twice to block data. Ethereum chose ...
Just to reiterate from a post I made later. There's a (very, very, very...) few places where SHA1 is not broken. But there's no reason ever to use it for new ...
Security researchers have achieved the first real-world collision attack against the SHA-1 hash function, producing two different PDF files with the same SHA-1 signature. This shows that the algorithm ...
NIST recently published a journal article named "Finding Bugs in Cryptographic Hash Function Implementations," detailing how NIST revisited its five-year SHA-3 competition to find the successor to the ...
This is an explanation of the Cryptography problem "It is my Birthday 2" from CyLab Security Academy (formerly picoCTF). You are provided with one file, invite.pdf. There is a form on the webpage to ...
Download this article in PDF format. On the surface, this sounds ridiculous: A lobby fish tank gets attacked by hackers. Why would anyone want to break into a fish tank (Fig. 1)? But in this case, the ...
Developers of two open source code libraries for Secure Shell—the protocol millions of computers use to create encrypted connections to each other—are retiring the SHA-1 hashing algorithm, four months ...
Security researchers have achieved the first real-world collision attack against the SHA-1 hash function, producing two different PDF files with the same SHA-1 signature. This shows that the algorithm ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results