libsodium 是一个先进而且易用的加密库。主要用于加密、解密、签名和生成密码哈希等等。这是一个可移植的、跨编译器支持、可安装的，基于 NaCI 开发，提供一个兼容 API。
libsodium 1.0.6 发布，此版本更新内容如下：
Optimized implementations of Blake2 have been added for modern Intel platforms. crypto_generichash() is now faster than MD5 and SHA1 implementations while being far more secure.
Functions for which the return value should be checked have been tagged with
__attribute__ ((warn_unused_result)). This will intentionally break code compiled with
-Werrorthat didn't bother checking critical return values.
crypto_sign_edwards25519sha512batch_*()functions have been tagged as deprecated.
Undocumented symbols that were exported, but were only useful for internal purposes have been removed or made private:
sodium_runtime_get_cpu_features(), the implementation-specific
sodium_compare()now works as documented, and compares numbers in little-endian format instead of behaving like
The previous changes should not break actual applications, but to be safe, the library version major was incremented.
sodium_runtime_has_sse41()have been added.
The library can now be compiled with the CompCert compiler.