libsodium 1.0.3 发布，加密库

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#深圳# 6月10日 亚马逊AWSome Day云计算免费培训报名中
　　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 1.0.3 发布，此版本更新内容如下：

• 　　In addition to sodium_bin2hex(), sodium_hex2bin() is now aconstant-time function.
  
• 　　crypto_stream_xsalsa20_ic() has been added.
  
• 　　crypto_generichash_statebytes(), crypto_auth_*_statebytes() and crypto_hash_*_statebytes() have been added in order to retrieve the size of structures keeping states from foreign languages.
  
• 　　The JavaScript target doesn't require /dev/urandom or an external randombytes() implementation any more. Other minor Emscripten-related improvements have been made in order to support libsodium.js
  
• 　　Custom randombytes implementations do not need to provide their own implementation of randombytes_uniform() any more. randombytes_stir() and randombytes_close() can also be NULL pointers if they are not required.
  
• 　　On Linux, getrandom(2) is being used instead of directly accessing /dev/urandom, if the kernel supports this system call.
  
• 　　crypto_box_seal() and crypto_box_seal_open() have been added.
  
• 　　A solutions for Visual Studio 2015 was added.
  

　　此版本现已提供下载：libsodium-1.0.3.tar.gz。