RSA encryption library for C++ [closed]

Question

I am developing a Win32 application and I would like to use an RSA encryption library. Which library would you recommend?

Answer 1

I use the following library:

http://www.efgh.com/software/rsa.htm

It's public domain, compact, self contained, and does the work well.

Answer 2

If you're using Win32, why don't you simply use the built-in win32 crypto-API?

Here's a little example how it works in practice:

http://www.codeproject.com/KB/security/EncryptionCryptoAPI.aspx

Answer 3

Crypto++ - They have NIST FIPS validated dll's for MSVC 6, 7.1, and 8 on top of the normal source code self built packages.

Answer 4

I think OpenSSL is a good choice. It's well-maintained, and the price is right :)

http://www.openssl.org

Answer 5

As an alternative, consider LibTomCrypt (http://libtomcrypt.com/download.html)

Answer 6

Maybe Botan is an alternative? It is a C++ library with a BSD license that supports RSA algorithms.

Answer 7

Another alternative is libbeecrypt. A very mature product with assembler implementations on many platforms.

Answer 8

I have used OpenSSL in past and found it a great library for crypto APIs including AES, RSA, 3DES.

Answer 9

I would recommend Miracl library https://certivox.com/solutions/miracl-crypto-sdk/ but the price is high.