Codesys2.1 编程手册,上 海 派 芬 自 动 控 制 技 术 有 限 公司编写 有应用实例
Codesys2.1 Programming Manual, Automatic Control Technology Co., Ltd. Shanghai Finland prepared to send a application example (2010-07-29, PDF, 4380KB, 下载6次)
介绍有关OpenSSL方面的编程，OpenSSL对于学习PKI相当有用
Describes the programming aspects of the OpenSSL, OpenSSL PKI is useful for learning (2010-05-21, PDF, 1317KB, 下载6次)
一本介绍密码学现代知识的学习资料，对于密码算法编程方面很有用。
A description of the study of modern knowledge of cryptography information programming for the cryptographic algorithm is useful. (2009-09-21, PDF, 4377KB, 下载9次)