Encrypt And Decrypt Online
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- Jul 19, 2005 BTW, I went on Google and entered 'encrypt decrypt C source' (without the quotes, of course) and immediately got more than 9000 pages. The very first one had a whole project for AES (whatever that is) encryption/decryption. I don't believe that among those 9000 links there weren't any that you could use.
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This project implements the AES White Box encryption scheme asoutlined in 2002 by Chow et al.
C program to encrypt and decrypt files. To encrypt and decrypt file's content in c programming, you have to open that file and start reading character by character, at the time of reading make some algorithm to encrypt the content of the file and place the content in the temporary file then after encrypting all content of the file place the content in the original file and later use the. (C) RSA Encrypt/Decrypt AES Key. Demonstrates how to use RSA to protect a key for AES encryption. It can be used in this scenario: You will provide your RSA public key to any number of counterparts. Your counterpart will generate an AES key, encrypt data (or a file). Encrypt / Decrypt a File and Verify it has not Changed; RSAES-OAEP Encrypt String with AES-128 Content Encryption and SHA256; Example for both AES-128 and ChaCha20 to Encrypt Binary Data; RSAES-OAEP Encrypt/Decrypt Binary Data with AES-128 and SHA56; AES and CHACHA20 Encrypt/Decrypt Text; Encrypting/decrypting a data stream.
It requires the following dependencies:
- Boost (
program_options
andserialization
).Can be acquired on Debian-based Linux distributions viaapt
:sudo apt-get install libboost1.67-all-dev
- NTL (used for linear algebra on finite fields)Can be acquired on Debian-based Linux distributions via
apt
:sudo apt-get install libntl-dev
- Crypto++ (used mainly for the platform-independent cryptographic random numbergenerator, also for modes of operation)Can be acquired on Debian-based Linux distributions via
apt
:sudo apt-get install libcrypto++-dev
All dependencies can be quickly acquired on Ubuntu using
sudo apt-get install libboost1.67-all-dev libntl-dev libcrypto++-dev
Whitebox cryptography implementations
This is an implementation of a white-box cryptography scheme, in particular theone from 2002, by Chow et al. For more info on white-box cryptography, see http://www.whiteboxcrypto.com/
Encrypt Decrypt String
This implementation supports:
- Generating a table that can be used by the program to encrypt and decrypt data streams
- Generating a C++ header that can be used with the C++ source file in the /genfolder to automatically create a program that implements a WBC cipher
The implementation is written in C++.The build system is CMake. It is recommended to do out-of-sourcebuilds with CMake.
The actual program can then be accessed via a command line interface.The following options are available:
--help
: Displays options--create encryption tables
Create a table for encryptionin a given file, use later with --whitebox-table--create encryption tables
Create a table for decryptionin a given file, use later with --whitebox-table--create-c-file
Create a C++ struct containing the whitebox,for embedding in other programs.--key arg
The key to use for creating the tables--whitebox-table arg
This is for encrypting/decryptinggiven an existing whitebox table--set mode ARG
Set block cipher mode, either CBC/CTR/ECB--iv arg
IV for CBC/CTR mode--set-padding ARG
Set padding mode, default PKCS/NONE for CTR--encrypt
Use table to encrypt--decrypt
Use table to decrypt--input-file ARG
input file to use, default stdin--output-file ARG
output file to use, default stdout--encrypt-state ARG
encrypt/decrypt hex AES state on commandline using whitebox table--create-external-encoding
arg Create external encodings in given file--apply-input-encoding
arg Apply input encoding to white box--apply-output-encoding
arg Apply output encoding to white box
It supports encryption and decryption with ECB, CBC and CTR modes.
License
This project uses the ISC license
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