Encryption in C++

[Wilson]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

if it is, could you advise on the simplest way of doing this

thanks

 

[=?ISO-8859-1?Q?Erik_Wikstr=F6m?=]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

if it is, could you advise on the simplest way of doing this

Find yourself a good book on cryptography, one that explains the
different algorithms used, and start implementing one of them in C++. Or
get yourself a library that implements some cryptographic functions and
used that, most of them are probably written in C but you should be able
to use them in a C++ program with no problems.

 

[Virtual_X]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

if it is, could you advise on the simplest way of doing this

thanks

you can find very useful information about the most popular encryption
method "AES" in this link

http://www.iaik.tu-graz.ac.at/research/krypto/AES/

 

[Daniel Kraft]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

if it is, could you advise on the simplest way of doing this

I believe there is a vast number of possibilities... One very easy
method is to XOR every byte against either a fixed one or an entered
key, like this:

uint8_t byte(readItFromDisc());
byte^=0x34; // Insert key here
writeOut(byte);

When you apply the same algorithm to the encrypted data, you get the
original file out.

Cheers,
Daniel

 

[osmium]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

The only tools used is creating an algorithm is the human mind and a vague
notion of what a "computer", whatever that is, can do. Following this step,
you could test your theories by writing a program in C++.

 

[Protoman]

The only tools used is creating an algorithm is the human mind and a vague
notion of what a "computer", whatever that is, can do. Following this step,
you could test your theories by writing a program in C++.

I wrote a program that simulates a 36 character, 10 rotor cipher w/ a
reflector. So, it can be done.

 

[martyw]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++

if it is, could you advise on the simplest way of doing this

thanks

use a library - see for instance
http://en.wikipedia.org/wiki/Advanced_Encryption_Standard, section
implementations

 

[James Kanze]

The only tools used is creating an algorithm is the human
mind and a vague notion of what a "computer", whatever that
is, can do. Following this step, you could test your
theories by writing a program in C++.

[/QUOTE]

I wrote a program that simulates a 36 character, 10 rotor cipher w/ a
reflector. So, it can be done.

You miss his point. You wrote a program that implements an
existing algorithm. You need the algorithm before writing the
program, so the program can't create the algorithm. (Of course,
it's probable that the original poster just expressed himself
poorly. Which IMHO doesn't bode good; people who cannot express
themselves clearly and precisely in their native language don't
have what it takes to become competent programmers.)

 

[Rolf Magnus]

You miss his point. You wrote a program that implements an
existing algorithm. You need the algorithm before writing the
program, so the program can't create the algorithm.

The OP didn't say it could. He asked if it's possible to use C++ in the
process of creating one.

(Of course, it's probable that the original poster just expressed himself
poorly. Which IMHO doesn't bode good; people who cannot express
themselves clearly and precisely in their native language don't
have what it takes to become competent programmers.)

How do you know what the OP's native language is?

 

[Kevin Handy]

hello, is it possible, in any way, to encrypt files, or create an
encrypting algorithm using C++ yes.


if it is, could you advise on the simplest way of doing this

I've always favored the rot13 encryption scheme.
Run it through twice for double encryption power!