Network security with OpenSSL

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Most applications today are network aware, raising the need for protection against common security threats. Developers increasingly rely on OpenSSL, an open-source implementation of SSL/TLS, the leading protocol for secure network communications. OpenSSL is widely adopted for websites requiring cryptographic functions to safeguard sensitive information like credit card numbers and financial transactions. As the only free, full-featured SSL implementation for C and C++, it can be used programmatically or via the command line to secure TCP-based network protocols. This concise guide enables developers to utilize OpenSSL effectively, streamlining what traditionally took weeks into manageable steps. It helps avoid pitfalls while focusing on essential information for safe and effective use. The book outlines challenges in securing network communications and demonstrates how to leverage OpenSSL tools to address them. System and network administrators will appreciate the comprehensive treatment of the command-line interface, including step-by-step instructions for obtaining certificates and establishing a certification authority. Developers will find in-depth discussions and examples for integrating OpenSSL into their programs, with additional information on using it with Perl, Python, and PHP. If you need to protect sensitive data, this guide is the definitive resource on the subject.