Search Results for "simple substitution cipher"
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Showing 36 open source projects for "simple substitution cipher"
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Cryptomator
Multi-platform transparent client-side encryption for your cloud files
Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations. -
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cppcrypto
C++ cryptographic library (modern hash functions, ciphers, KDFs)
cppcrypto provides optimized implementations of cryptographic primitives. Hash functions: BLAKE, BLAKE2, Echo, Esch, Groestl, JH, Kupyna, MD5, SHA-1, SHA-2, SHA-3, SHAKE, Skein, SM3, Streebog, Whirlpool. Block ciphers: Anubis, Aria, Camellia, CAST-256, Kalyna, Kuznyechik, Mars, Serpent, Simon, SM4, Speck, Threefish, Twofish, and Rijndael (AES) with all block/key sizes. Stream ciphers: HC-128, HC-256, Salsa20, XSalsa20, ChaCha, XChaCha. Encryption modes: CBC, CTR. AEAD modes:... -
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Halimede
Halimede Certificate Authority
Halimede is a simple to use Certificate Authority. It supports multiple CA (Certificate Authorities) from a single interface, with each CA is stored within it's own datastore instance. Halimede supports a large range of public key ciphers, including RSA, DSA, ECDSA (NIST/SEC/ANSI X9.62/Brainpool Curves), EdDSA (ED25519/ED448), GOST R34.10, DSTU 4145-2002 and numerous Post-Quantum Ciphers including Rainbow, SPHINCS-256, XMSS/XMSS-MT and qTESLA for X509 Certificate generation. Halimede... -
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Simple Cipher Algorithm
Java Encryption Utility.
Very simple to use symmetric Java encryption utility. Please write a review. Email me with any questions or problems. -
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TraySafe
Elegant and reliable profile data storage
... is that all the info is saved as encrypted data in the data.tsf file in the program directory. The simple yet effective encryption algorithm has a password hash, salt key and vigenère cipher key that are changed with every update. The only thing you have to do when updating is to delete the .tsf files and re-enter all your info again so that it can be encrypted using the new parameters. Detailed How-To can be found in the project wiki. -
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IP-Chat
UDP based desktop chatting app which supports AES-256 bit encryption.
Simple Encrypted chat application built with Java. It uses AES-256 bit block cipher algorithm. -
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Cryptonik
Text encryption tool using Vigenère cipher
Cryptonik-Text is a useful, simple to use tool for encrypt/decrypt text docs, messages, notes etc. Application uses a charset that can be typed from any keyboard (on-screen or hardware). Some national symbols are converted to 26 standard latin letters. -
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openSSLGOSTSigner
Simple GUI tool for openssl to sign files with GOST algorithm
This software is a simple GUI tool which uses openssl command line utility underneath. It designed to sign any type of files with GOST algorithm (GOST cipher) and will be especially useful for russian ISP's and IT companies which in one way or another have to deal with Roskomnadzor's forbidden sites list to reduce the timewaste while typing in commandline each time you need to sign some file. To use this software you will need to have a ".PEM" file(which exactly used to sign files). If you... -
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approach to encryption and decryption involves two strings. The first is an encryption / decryption string which we will allow to be up to 128 lower case alphabetical characters in length. The second string is a line of text from a file that is to be encrypted or decrypted. the basic strategy for encrypting data is based on mapping alphabetical characters to specific values, then doing some simple mathematical operations to create a new value.
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Substitution Cipher Toolkit
Substitution cipher toolkit (en/decryption + automatical cracking)
This substitution cipher toolkit enables you to en- and decrypt texts with substitution cipher, to gather language statistics of a specific language and to crack encrypted texts both manually and automatically. All functions can be accessed via an easy-to-use graphical user interface. -
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VCipher
A Social Media Encryption/Decryption Tool
VCipher is a unique encryption and decryption tool.The code is not unique rather it is quite simple as it uses Vigenère cipher algorithm but the idea is quite unique.It is created to be used as an extra layer of protection for social networking sites,so even if someone's account is hacked it will take them so expertise to read those messages.And if used correctly it can also be made uncrackable if used correctly.This is a CLI(Command Line Interface) there is a web version too. VCipher Web... -
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SES Super-Encypherment Scrambler
SES brings back the uncrackable onetime pad, with a digital twist.
SES brings back the uncrackable onetime pad, with a digital twist. It is well known that a random key of message-length is the only provably unbreakable cipher. SES uses cryptographic strength pseudo-random keys of message-length for its many encipherments, in addition to offering true one-time pad capability for the intrepid. SES is built on ISAAC, Bob Jenkins' unbroken CSPRNG, a fast and simple stream cipher placed in the Public Domain in 1996. SES now gives you the ability to efficiently... -
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Substitution Cipher Decryption
Decrypt messages encrypted with a substitution cipher
The provided program helps the user with the deciphering of a substitution cipher with the 26 letter alphabet by providing the following features • Dynamic entering of ciphertext. Ciphertext can be modified at any point of the process. • Easy location of corresponding characters in the ciphertext and the substituted text by selection. • Fast frequency analysis for single letters, bigrams, trigrams and quadgrams (more N -grams can be made available by adding a single line of code). • Showing... -
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Simple Cipher Decoder
Decrypts and encrypts substitution, transposition and vigenere ciphers
Change log 1.01: 1)Error fixed on clicking solve and arrow buttons in the vigenere decoder 2)Error fixed when number of columns exceeds text length in substiution cipher 3)Can now handle variable block length when changing columns 4)Multiple identicle conversion values onn the frequency analysis page now not allowed This project is near its final stages but there may still be improvements to be made. If you could write some form of review or send me an email with advice I would greatly... -
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JCryptor
JCryptor is an encrypting tool based on the Caesar-cipher.
JCryptor uses the Caesar-cipher to encrypt keystrokes on-the-fly. It can also be used to decrypt an encrypted text easily. Caesar-cipher is a simple encryption algorithm, developed by Julius Caesar, to encrypt his correspondence with Cicero in the ancient world. Therefore it uses a simple character substitution method to replace a given character by another. A keyshift of thirteen is called ROT13. ROT13 can be decrypted by encrypting it again with ROT13. Even today this simple method is used... -
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Simplest Text Encrypter
A simple example of polyalphabetic cipher in Java.
Cryptography fascinates everyone. A variety of encryption techniques and ciphers are used to code important data. A polyalphabetic cipher is one of the simplest cipher one can make. This is a Java program to implement polyalphabetic cipher. [How the cipher encodes?] Input Data: helloaf Key: love l - 12th letter in Alphabet o - 15th letter in Alphabet v - 22nd letter in Alphabet e - 5th letter in Alphabet Now: h(l) e(o) l(v) l(e) o(l) a(o) f(v) Further: h(+12) e(+15) l(+22) l(+5) o(+12... -
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MLCrypt
Simple, lightweight, standalone command-line single file encryption.
Simple, lightweight, cross-platform (Windows / Linux / ARM6 Linux), cross-arch (x32 / x64), standalone command line file encryption program. GnuPG is probably the best application for cross-platform encryption. However, its usage on Windows PCs may be inconvenient (installation administrator rights; large executable size for perhaps just a one-time file decryption, complicated command-line switches for stronger encryption). NCrypt would fulfill this task, but does not operate on 64-bit... -
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Net Send
Net Send is an Encryped Communications Program
Written in Python, Net Send features a current two way chat dialogue that features a customizable encryption system. Users can change what their output is encrypted as before communicating. This eliminates issues with having to develop sophisticated encryptions tha risk being cracked. -
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vigenere.py
this simple program implements the Vigenere cipher in python
For details of this cipher see; http://en.wikipedia.org/wiki/Vigenere_cipher This cipher can be broken by frequency analysis, this is a toy project, and should not be used in situations where security is important. -
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BPass Manager
Simple Bash password manager using GPG and SQLite
Bash Password Manager (BPass) is a shell script that create a SQLite database in which you can store your passwords with the maximum security! In fact it uses GPG (or GPG+OpenSSL) to encrypt and decrypt your database. Now i'm developing the version 2.0 of this script and it will take me some times because i'm busy with my study! Please note that this project is in beta version so please use it only for testing purpose! I've tested this script on: - Ubuntu 11.10 x32/x64 - Ubuntu 12.04... -
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CaesarCipher is a simple tool which helps you de/encrypt texts with the caesar cipher. This tool should not be used to encrypt sensitive data like passwords or personal information.
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A command-line to help encipher and decipher your password based on a simple algorithm. Java version provides GUI.
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HcryptoJ (Historical cryptology in Java) is a Java based programming library for implementing and analyzing historical ciphers. HcryptoJ is designed to support research and teaching in historical cryptography and computer science. Licensed under GPL.
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Alkindus is an automated solver for short monoalphabetic substitution ciphers without word divisions.
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A simple demonstrative command line tool which can do both file encryption and decryption . It is based on OpenSSL and can support AES / DES / 3DES / BLOWFISH / RC4 cipher algorithms with ECB / CBC / CFB / OFB chaining modes (ECB only for RC4).