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 ...
Ethereum hash functions are reevaluated as post-quantum proof systems remove prior constraints, focusing on security and speed trade-offs.
BLAKE3 beats SHA3-256 by up to 12x on throughput benchmarks, but SHA-3 keeps its FIPS 202 edge. Full specs, pricing, and ...
"I have the 'same file' on my server, my local machine, and OneDrive. But are they all the same version?"—Even if you want to ...
Test ERC-4337 paymaster exploits in Foundry: deposit draining, gas griefing, and signature bypass bugs, step by step with real code.
An Ubuntu developer has proposed adding SHA3-256 and SHA3-512 support to APT, with generation off by default. Here is how APT ...
Learn how Ethereum function selectors help smart contracts identify transaction requests and execute the right functions.
There is also no evidence that any quantum computer today can break elliptic-curve signatures. The "harvest now, decrypt ...
A footstep registers on an accelerometer. A door opening writes a timestamped line to a log. A card tap fixes a purchase to a ...
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