Description:

Nettle is a cryptographic library that is designed to fit easily in
more or less any context: In crypto toolkits for object-oriented
languages (C++, Python, Pike, ...), in applications like LSH or GNUPG,
or even in kernel space. Nettle does only one thing, the low-level
crypto stuff, providing simple but general interface to it. In
particular, Nettle doesn't do algorithm selection. It doesn't do
memory allocation. It doesn't do any I/O. All these is up to
application.