Case Study 7: another way to build Crypto++

Case Study 7: another way to build Crypto++

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1. Building 64-bit Version of the crypto++ DLL

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

2. Crypto++

wikipedia site.

3. Crypto++ Category:Sample

code samples.

4. Crypto++ :Log in

I have registered.

5. Recommended Books

Recommended Books is a compilation of programming and security books that you might find helpful. Other related information can be found at the Consultants page and Related Links page.

The Consultants page is a list of individuals and companies who are available to help with your projects. The Related Links page offers information like projects using Crypto++ and other similar libraries.

First Video tutorial

6. Compiling Crypto++ library into the Microsoft Visual C++ Environment + Running Sample program

Link to the Blod Entry on Crypto++------http://programmingknowledgeblog.blogs... c++ - about encryption and decryption using Crypto++ library Compiling and Integrating Crypto++ into the Microsoft Visual C++ .c++ - How do I install Crypto++ in Visual Studio 2010 Windows 7. Running Sample program Example How to build C++ cryptographic library, Crypto++ - NuLL CryptoPP DLL How to build Crypto++ dynamically on Microsoft Windows and Visual C++? ... is that your are linking against different versions of the run-time libraries....Visual C++ Crypto++ Library 5.6.2 - a Free C++ Class Library of Cryptographic encryption.cryptopp - Re: How to use Crypto++ with Visual C++ 6.0 Searches related to how to compile and run crypto++ in visual c++.

Crypto++ project compilation: MY Steps:

Step 1. download version 5.6.2
Step 2. open this file in Visual Studio 2019: cryptest.sln
Step 3. from top menu:Build->Batch Build. select cryptolib win32 debug & release items. then build.
we got 64 warning messages. it will generate win32 folder.

Demo Project compilation:

Step 0. Follow the example instructions to create aa console project.
Step 1. copy the example into source file TestCrypto.cpp
Step 2. set up header include file to D:\Cryptopp562 or a simple ..\ will work
Step 3. set up linker --> Select the Input and in the Additional Dependency: Enter the cryptlib.lib
Step 4. set up linker --> General --> Aditional Library Directories: Enter the D:\Cryptopp562\Win32\Output\Debug
Step 5. go to Project-> properties-->C/C++-> Code Generation ->Runtime Library : select the option ‘Multi-threaded Debug (/MTd)’
Step 6. add stdafx.h file with the foolowing line to remove compilation error:
#define _CRT_SECURE_NO_WARNINGS

After these steps, the test project succeeds.

7. Compiling and Integrating Crypto++ into the Microsoft Visual C++ Environment + Running Sample program

youtube video is with these instructions on Compiling and Integrating Crypto++ into the Microsoft Visual C++.

8. AES in Cryptopp c++

a good example for AES + Crypto++.

9. How to Build C++ Cryptographic Library, Crypto++

Crypto++ is an awesome free and open source C++ class library of cryptographic algorithms and schemes which fully supports 32-bit and 64-bit architectures for many major operating systems, including FreeBSD, Linux, Solaris, Windows, Mac OS X and iOS. Currently, Crypto++ officially supports the following compilers:

1. MSVC 6.0 - 2010
2. GCC 3.3 - 4.5
In spite of the power that Crypto++ offers, building and using it can be a little bit tricky. In the following we will describe the process of building Crypto++ on both FreeBSD and Windows using the GCC, MinGW and VC++ compilers.
10. Write Your Own Cross-Platform Cryptographic Library

Now, we want to develop our own cross-platform cryptographic wrapper library around Crypto++. I’ve already uploaded the full source code to GitHub. You can find the link to the code on GitHub at the end of this article..

a good hex to ascii converter::

Second Video tutorial

11. Compiling Crypto++ in Microsoft Visual Studio 2019/2017 (with Cryptopp-PEM)

Step-by-step tutorial on how to use and compile Crypto++ with Cryptopp PEM Pack in Microsoft Visual Studio 2019 and 2017. The steps are just the same for both versions of MVS.

Links used in the video:
1. Cryptopp repo - https://github.com/weidai11/cryptopp
2. Cryptopp-PEM repo - https://github.com/noloader/cryptopp-pem
3. Cryptopp-PEM issue - https://github.com/noloader/cryptopp-...
4. Cryptopp main wiki - https://www.cryptopp.com/wiki/Main_Page
5. Cryptopp Visual Studio wiki - https://www.cryptopp.com/wiki/Visual_...
6. Cryptopp PEM Pack wiki - https://www.cryptopp.com/wiki/PEM_Pack
12. PEM Pack

The PEM Pack is a partial implementation of message encryption which allows you to read and write PEM encoded keys and parameters, including encrypted private keys. The additional files include support for RSA, DSA, EC, ECDSA keys and Diffie-Hellman parameters. The pack includes five additional source files, a script to create test keys using OpenSSL, a C++ program to test reading and writing the keys, and a script to verify the keys written by Crypto++ using OpenSSL..

Misc.

13. Link errors using cryptopp on VS2012 static library, console application and clr program

I have the following project structure on VS2012 C++:

1. cryptopp: As downloaded and build from cryptopp project.
2. AccessLib: A static library build using cryptopp functions.
3. TestApp: A Win32 console application that uses AccessLib (and cryptolib indirectly)
4. UserApp: A Windows interactive application with CLR support (/clr) that uses AccessLib (and cryptolib indirectly)
Well, my first try was to make this solution work to build my console application and my windows application. BTW, cryptopp was build in a way described in manuals and this SO link. All tests from cryptopp project are running fine in the build environment.
14. C++ static library and platform toolset compatibility

I recently created a static C++ library in Visual Studio 2008. In this project i used some methods of the std::string class. Now i want to use this library in a Visual Studio 2013 project.

The problem is: Both Visual Studio versions use different platform toolsets and the project will not compile because of linker errors like:

Error 4 error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall std::basic_string,class std::allocator >::basic_string,class std::allocator >(void)" (__imp_??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ)
Is there any way to make a library compatible with all platform toolsets and using some standard classes like std::string?.
15. How do I install Crypto++ in Visual Studio 2010?

I downloaded http://www.cryptopp.com/#download 5.6.1 and have no clue that to do at this point. I am a total noob and need good instructions. thanks.

* MSVC-Specific Information * On Windows, Crypto++ can be compiled into 3 forms:

1. 1)a static library including all algorithms,
2. 2)a DLL with only FIPS Approved algorithms,
3. and 3)a static library with only algorithms not in the DLL.

(FIPS Approved means Approved according to the FIPS 140-2 standard.) The DLL may be used by itself, or it may be used together with the second form of the static library.

MSVC project files are included to build all three forms, and sample applications using each of the three forms are also included.

To compile Crypto++ with MSVC, open the "cryptest.dsw" (for MSVC 6 and MSVC .NET 2003) or "cryptest.sln" (for MSVC 2005 - 2010) workspace file and build one or more of the following projects:

• cryptopp - This builds the DLL. Please note that if you wish to use Crypto++ as a FIPS validated module, you must use a pre-built DLL that has undergone the FIPS validation process instead of building your own.
• dlltest - This builds a sample application that only uses the DLL.
• cryptest Non-DLL-Import Configuration - This builds the full static library along with a full test driver.
• cryptest DLL-Import Configuration - This builds a static library containing only algorithms not in the DLL, along with a full test driver that uses both the DLL and the static library.

To use the Crypto++ DLL in your application, #include "dll.h" before including any other Crypto++ header files, and place the DLL in the same directory as your .exe file. dll.h includes the line #pragma comment(lib, "cryptopp") so you don't have to explicitly list the import library in your project settings.

To use a static library form of Crypto++, make the "cryptlib" project a dependency of your application project, or specify it as an additional library to link with in your project settings. In either case you should check the compiler options to make sure that the library and your application are using the same C++ run-time libraries and calling conventions.

If you have any questions feel free to ask and i'll update the anwser with my responses.

16. Example of AES using Crypto++ [closed]

I have been searching the Internet for good c++ AES code sample/tutorial that teaches the basics of the encryption technology and the use of the Library but so far I have had no luck getting decent material.

good: Easy to understand (Just the basics for on the go study)..

Answer: Official document of Crypto++ AES is a good start. And from my archive, a basic implementation of AES is as follows:

Please refer here with more explanation, I recommend you first understand the algorithm and then try to understand each line step by step.

17. How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?

Which of them are preferred in which circumstances?

I'd like to see the list of evaluation crtieria for the various modes, and maybe a discussion of the applicability of each criterion.

For example, I think one of the criteria is "size of the code" for encryption and decryption, which is important for micro-code embedded systems, like 802.11 network adapters. IF the code required to implement CBC is much smaller than that required for CTR (I don't know this is true, it's just an example), then I could understand why the mode with the smaller code would be preferred. But if I am writing an app that runs on a server, and the AES library I am using implements both CBC and CTR anyway, then this criterion is irrelevant.

See what I mean by "list of evaluation criteria and applicability of each criterion" ??

18. Example of AES using Crypto++ [closed]

I have been searching the Internet for good c++ AES code sample/tutorial that teaches the basics of the encryption technology and the use of the Library but so far I have had no luck getting decent material.

good: Easy to understand (Just the basics for on the go study)..

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