Free Cryptography libraries

Question

What are the most stable and useful Cryptography libraries, that they are:

• written with/for python, c++, c#, .net
• opensource, GNU, or other free license

Answer 1

For C# and Java, there is bouncycastle . The granddaddy of crypto libraries is openssl . For C++, another very mature library is crypto++ .

Answer 2

The standard Python library (implementing common ciphers like AES and RSA) is PyCrypto . It doesn't support things like PKCS yet, however. There is a partial Python wrapper for the Crypto++ library given by PyCryptopp , which you may find useful.

The OpenSSL library is also wrapped for Python by PyOpenSSL . A Python implementation of SSH is Paramiko .

Answer 3

Take a look at KeyCzar

Some features of Keyczar include:

• A simple API
• Key rotation and versioning
• Safe default algorithms, modes, and key lengths
• Automated generation of initialization vectors and ciphertext signatures
• Java, Python, and C++ implementations
• International support in Java (Python coming soon)

Doesn't seem to have C# support though.

Answer 4

NSS与C ++兼容，并且具有Java和Python的绑定，尽管我不确定它是否具有.NET / Mono绑定。