Posts tagged "hashing"

Bcrypt is the password-hashing standard most modern apps still rely on. Here's how the Blowfish-based KDF works, why the cost factor matters, and how to pick a value that ages well as hardware speeds up.

A checksum is a small number computed from a block of data that lets you verify the data has not changed. Here is why this simple idea underpins file downloads, network protocols, and storage systems.

MD5 and bcrypt are both called hashing algorithms, but they serve completely different purposes. This guide explains what makes a hash function suitable for checksums versus password storage.

Treating Base64 as encryption or MD5 as a secure hash are among the most common security mistakes developers make. This post draws a clear line between encoding, encryption, and hashing.