Encryption

Gee, I'd love to help you but:

1. I know jack about DES
2. I've never heard of C++++.
3. I know some C# but don't know about encryption within it.
4. The US has strict laws about exporting encryption technology above 40 bits.

(channeling Larry)
Developers should NEVER IMPLEMENT THEIR OWN CRYPTO!!!
(/channeling Larry)

Well, you could start with the standard... then maybe review some existing open-source implementations.

Roll Your Own Crypto!

:O

Ion Todirel wrote:

SlackmasterK wrote: Gee, I'd love to help you but: 1. I know jack about DES 2. I've never heard of C++++. 3. I know some C# but don't know about encryption within it. 4. The US has strict laws about exporting encryption technology above 40 bits.

thanks, C# means C++ ++ , sharp symbol, left with 45^o

There is a proper "degrees" symbol (°), please use it instead of a superscript "o".

Anyway, C# isn't anything like C++ other than that they're both OOP languages that use the C-Style syntax with brace punctuation, it's more comparable to Java.

Ion Todirel wrote:

Maurits wrote:(channeling Larry) Developers should NEVER IMPLEMENT THEIR OWN CRYPTO!!! (/channeling Larry) Well, you could start with the standard... then maybe review some existing open-source implementations.

i am student, i have too ;(, i know about System.Security namespace, and how to encrypt/decrypt data using .NET, but i must do with my own implementation.

Typically you accept some kind of data in the form of a byte array, do something with this array to encrypt it and output it, optionally converting it to something like a Hex-encoded string.

W3bbo wrote:

There is a proper "degrees" symbol (°), please use it instead of a superscript "o".

There is a proper sharp symbol too, ♯, yet everybody insists on using the number sign.

W3bbo wrote:

Anyway, C# isn't anything like C++ other than that they're both OOP languages that use the C-Style syntax with brace punctuation, it's more comparable to Java.

Says the guy who doesn't know C++. Anyway, C# isn't much like Java either. It might have more in common with Java than with C++, but the commonalities are still mostly superficial.

EDIT: Also, some striking points: Java does not have structs, C# and C++ do. Java does not have namespaces (it does have a similar concept in packages), C# and C++ do. Java does not have enums (pre-1.5 anyway), C# and C++ do. Java does not allow by reference arguments, C# and C++ do. Java doesn't allow unsafe pointer usage, C# and C++ do. Java doesn't have unsigned types, C# and C++ do. Java doesn't allow operator overloading, C# and C++ do. The list goes on.

Ion Todirel wrote:

hey,

who knows some documentation about DES Algorithm? I wont to implement my own in C++++ (C#). ... or another easy to implement algorithm.

In C#, use the System.Security.Cryptography.DESCryptoServiceProvider class. For an algorithm that offers longer key lengths, consider the System.Security.Cryptography.RijndaelManaged class. (Rijndael is also known as AES).

Mike Dimmick wrote:

Ion Todirel wrote: hey, who knows some documentation about DES Algorithm? I wont to implement my own in C++++ (C#). ... or another easy to implement algorithm.

In C#, use the System.Security.Cryptography.DESCryptoServiceProvider class. For an algorithm that offers longer key lengths, consider the System.Security.Cryptography.RijndaelManaged class. (Rijndael is also known as AES).

If you had actually read the thread, you would have seen he is familiary with the System.Security.Cryptography namespace, but has to write his own because he's a student (probably it's (part of) an assignment).