Tagged articles

cryptography

203 articles · Page 3 of 3

Sep 4, 2014 · Information Security

Understanding MD5: Hash Function vs Encryption and the Importance of Mathematical Thinking in Programming

MD5 is a one‑way hash, not an encryption method, and its 128‑bit output cannot be mathematically reversed; understanding this requires solid algorithmic and mathematical foundations, which the author argues are essential for programmers alongside broader theoretical knowledge rather than relying on mere trial‑and‑error experience.

MD5Programming Fundamentalscollision attack

0 likes · 7 min read

Understanding MD5: Hash Function vs Encryption and the Importance of Mathematical Thinking in Programming

MaGe Linux Operations

Jul 4, 2014 · Information Security

How Digital Signatures Secure Data: Principles, Algorithms, and Implementation

This article explains the concept of digital signatures, their role in verifying data integrity and origin, outlines common algorithms such as RSA, DSS, and hash‑based signatures, and details the full PKI‑based workflow—including authentication, signing, and verification—while also describing how to combine encryption with signatures for confidential transmission.

PKIRSAcryptography

0 likes · 8 min read

How Digital Signatures Secure Data: Principles, Algorithms, and Implementation

Baidu Tech Salon

May 12, 2014 · Information Security

Pulse Position Modulation for Secure Optical Communication

Scientists at the University of Massachusetts have demonstrated a pulse‑position‑modulation optical link that encodes data in sparse laser pulses amid unrelated photons, making eavesdropping appear as random noise and offering theoretically unbreakable encryption, though it requires a pre‑shared decoding key.

cryptographylaser transmissionoptical communication

0 likes · 3 min read

Pulse Position Modulation for Secure Optical Communication