Browsing Tag
cryptography
36 posts
Advanced Encryption Standard (AES): Complete Guide to Encryption, Modes, and Security
If you’ve ever wondered what’s actually happening when your browser shows that little padlock icon, or how your…
Playfair Cipher in Cryptography: Encryption, Decryption, and Implementation Guide
I still remember the first time I worked through the Playfair cipher by hand — there’s something genuinely…
Hacking Monoalphabetic Cipher: Cryptanalysis Techniques and Frequency Analysis Attack
I like to describe the monoalphabetic substitution cipher as cryptography’s “first lesson in humility.” It looks deceptively strong…
Monoalphabetic Cipher in Cryptography: Substitution Techniques and Examples Explained
When I first started digging into classical cryptography, the monoalphabetic cipher was the very first technique I sat…
Vigenère Cipher in Cryptography: Polyalphabetic Encryption and Decryption Guide
I remember the first time I understood why the Vigenère cipher was called “le chiffre indéchiffrable” — the…
Decryption of a Transposition Cipher: Step-by-Step Guide with Examples
I’ve noticed that most articles about transposition ciphers spend almost all of their time on encryption and treat…
Transposition Cipher in Cryptography: Columnar, Rail Fence, and Route Ciphers Explained
Long before computers existed, people needed ways to hide the meaning of messages from prying eyes. One of…
ROT13 Algorithm in Cryptography: Caesar Cipher Variant and Implementation Guide
Among the many simple ciphers studied in introductory cryptography, few are as instantly recognizable and widely used in…
Reverse Cipher in Cryptography: Simple Encryption Technique and Implementation
Not every cipher needs to involve complicated mathematics to illustrate a core cryptographic idea. The Reverse Cipher is…
Block Cipher Modes of Operation: ECB, CBC, CFB, OFB, CTR, and GCM Explained
A block cipher, on its own, only knows how to do one thing: transform a single fixed-size block…