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Cryptography

cryptography

Great Reads

RSA Library with Private Key Encryption in C#

by Arpan Jati

RSA encryption library with full OAEP padding and private key encryption support

Design and Develop an Anonymous Network

by Kewin Rausch

Design and development of a TOR-like protocol to keep your communication secure and your identity unknown

ARC4 Encryption Library

by Pavel Bashkardin

ARC4 (Alleged RC4) Cryptography Provider Class Library

The Blum Micali Algorithm and Cryptographically Secure PRNGs (CSPRNGs)

by Cryptonite

The Blum Micali algorithm provides for a cryptographically secure PRNG (pseudo random number generator).

Latest Articles

Inject DLL in Another Process using C++ Win32 Windows API

by Daniel Ramnath

C++, Win32 API - Injecting DLL in a process

C++ OpenSSL 3.1 code for Advance Attack on AES-CBC Encryption: Combining Padding Oracle, Timing, and Error Handling Attacks

by Daniel Ramnath

C++ OpenSSL 3.1 Attack AES-CBC using Padding Oracle Attack, and Timing Attack

cngsha3: A Cryptography Next Generation Implementation of Newer Algorithms

by Michael Chourdakis

Use SHA-3 and the CRYSTALS Kyber, Dilithium and Sphincs in Win32 projects

No need to Store, Encrypt or Memorize Passwords!

by Sergey Alexandrovich Kryukov

Generator of highly secure passwords based on cryptographic hash and master password, which should be memorized; no password storage is involved.

All Articles

Cryptography

The Blum Micali Algorithm and Cryptographically Secure PRNGs (CSPRNGs)

23 Sep 2014 by Cryptonite

The Blum Micali algorithm provides for a cryptographically secure PRNG (pseudo random number generator).

RSA Key Pair via OpenSSL

19 Feb 2022 by Asif Bahrainwala

A simple C++ program to generate RSA key pair

C# Elliptical Curve Cryptography with Bouncy Castle Curve P-128

28 Oct 2016 by Deepraj Thuraka

Tweaking of the Bouncy Castle library to make it work with SecP128r1 curve1251

Encrypt & Decrypt Strings in Silverlight

31 Jul 2012 by Christian Amado

A very brief article about the implementation of encryption and decryption of a string in Silverlight Business Application

Solving the Chinese Remainder Theorem Using Totients

2 Sep 2014 by Cryptonite

This code gives a solution to the Chinese Remainder Theorem using totients instead of the Extended Euclidean algorithm.

Measuring the performance of AES implementations in .Net Framework (AesManaged vs AesCryptoServiceProvider)

21 Nov 2014 by Farzad E. (dNetGuru)

.Net framework provides two classes that implement AES, a native implementation that calls CAPI and AesManaged which is a purely managed implementation. Which one should you use ?

Sha1 Hash generation Tool using C#.NET

30 Sep 2010 by vpnchoudhary

The sha1 hash generation tool can be used to generate hashes on a file. The has generated can be outputted in the form of dig/Hex/Base64. You may use this utility to verify the integrity of the file transported over internet to make sure they are safe from tampering.

C++ OpenSSL 3.1 code for Advance Attack on AES-CBC Encryption: Combining Padding Oracle, Timing, and Error Handling Attacks

14 Aug 2023 by Daniel Ramnath

C++ OpenSSL 3.1 Attack AES-CBC using Padding Oracle Attack, and Timing Attack

Generate Serial CPP

13 May 2020 by Apprieu (Apprieu)

How to generate a serial key with Crypto API MFC

NoisyCrypt

25 Oct 2021 by ADMGNS

Very simple, noise-based color visual cryptography for images

Embed Messages in Images, The Easy Way!

15 Oct 2013 by Aravind.V.S

Embed secret messages in image files using Autohotkey.

Choosing a Good Constant in the Logistic Map PRNG

6 Mar 2014 by Dan Mihajlov

How a bad constant can cause a security breach

Building 64-bit Version of the crypto++ DLL

8 Sep 2014 by amsainju

This tip shows you how to compile crypto++ for 64-bit environment.

Inject DLL in Another Process using C++ Win32 Windows API

20 Dec 2023 by Daniel Ramnath

C++, Win32 API - Injecting DLL in a process

A simple hack of a built-in MS SQL Server WITH ENCRYPTION mechanism

27 Mar 2012 by Marian Placko

This article shows a simple hack of a built-in MS SQL Server WITH ENCRYPTION mechanism

Self Driven Cryptographic Operations

22 Apr 2012 by Kuthuparakkal

Input drives action to perform : Encryption or Decryption - Implementation of user defined encryption signature with standard cryptographic algorithms

DIY Cryptography System

20 Aug 2013 by Alexander Van Berg

Short case study for a do-it-yourself cryptography system.

How Random is TPM Random Generator in Windows10 Laptop?

5 Mar 2018 by Dharmateja Challa

This article is about generating random data using Trusted Platform Module in Windows 10 and testing its randomness using dieharder test suite.

A Basic Cipher Transform

16 Feb 2022 by charles henington

Simple user defined Cipher Transform that I got the idea from https://www.codeproject.com/Articles/5319044/ARC4-Encryption-Library