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 ...
Verify provably fair dice yourself: check the server seed hash, compute HMAC-SHA256, convert the digest to a roll, with a ...
A separate wrinkle affects Ethereum specifically: the network’s implementation of Keccak differs from the standardized SHA-3 in its padding scheme. Both versions are equally secure on their own terms, ...
“Provably fair” is a term that appears frequently in crypto gambling marketing, but many players never test the claim. The ...
Microsoft regularly releases Windows updates, and software developers publish fixes for vulnerabilities, bugs, and ...
When you run ssh user@server, you log into your usual server.However, the moment a connection fails, those familiar files ...
NIST finalized Ascon in Aug 2025. We compare AES-256-GCM vs Ascon-AEAD128 on security, speed, and IoT hardware fit.
Quantum-safe blockchain design requires more than replacing ECDSA. This article examines the protocol layers that still matter after post-quantum migration.
The potential for retroactive decryption highlights that the threat isn’t limited to the future arrival of powerful quantum ...
The crypto industry should start preparing for “bunker mode” — the ECDSA digital signature algorithm could be vulnerable even ...
OpenAI'snew model has raised concerns among cryptographer Matthew Green, as AI may discover mathematical shortcuts to crack ...
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