Hello!
Welcome to another Cryptology 101 article!
Today we will discuss block cipher modes of operation.
I know that the topic might not be fascinating, but it is worth to get through it even once.
Believe it or not, during job interviews, I was asked to briefly describe the topic not once, not twice.
We will also cover Python cryptographic libraries topic.
Let’s go 💣!
Continue reading “Cryptology 101: Block Cipher Modes of Operation with Python example”
Hello!
Welcome to another Android-related article!
From time to time, everybody needs some privacy. I don’t want to judge, but every person on the planet has sneaky little secrets. Need to hide any information? That’s why encryption was invented.
Today I want to introduce an elementary way to encrypt (and decrypt) data on Android.
Let’s go 💣!
Continue reading “Android Encryption: First step for secure notepad”
Hello!
Welcome to another Cryptology 101 article!
Today I would like to present one of the most popular public-key cryptosystems that are still in use.
We will focus on the textbook version of RSA, so let’s check this one out!
Continue reading “Textbook RSA – asymmetric encryption with Java”
Hello!
Welcome to my Cryptology 101 article!
Today I would like to describe encryption techniques and introduce distinction arbitrage between such complex and mixed terms: cryptology vs. cryptography, public vs. private key cryptography, or stream and block ciphers (with a limited amount of math!).
We will also learn how to distinguish between ciphers and codes and answer the question: is cryptology a science? 😉
First things first – let’s settle establish who is who in cryptology: encryption section!
Continue reading “Cryptology 101: Encryption”
Hello!
Today I would like to show you little crypto script, that helped me solve Nested Easter Egg in WebSec 101: JuiceShop ⭐⭐⭐⭐ challenges 2/3!
It’s very basic python implementation of shift cipher, also known as Caesar Cipher, Polybius cipher or ROT 13 (depends on shifting value), which is primitive form of substitution cipher.
I was intending to start writing about things related to cryptography, so we will begin with “back to the roots”!
Continue reading “CryptoPy: Caesar Cipher aka Shift Cipher in Python”
Hello!
Welcome to the second part of my web sec journey through Juice Shop four stars challenges!
Just to remind you, there are 24 ⭐⭐⭐⭐ challenges and I previously coped with 8 of them and today I’m planning to solve another 8 from categories: Injection, Sensitive Data Exposure and Security through Obscurity and Cryptographic Issues 😊 (that’s why I’m also tagging here as #cryptoRelated!)
Let’s get down to hackin!
Continue reading “WebSec 101: JuiceShop ⭐⭐⭐⭐ challenges 2/3”
Hello, World!
Hi there!
Welcome to my first post in my first blog!
Where are you? I would like to welcome you to the Head Full Of Ciphers!
Continue reading “Hello, World!”
Head Full of Ciphers 