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OpenSSL - A Comprehensive TLS/SSL and Cryptography Library
OpenSSL is a robust, commercial-grade, full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols as well as a powerful general-purpose cryptography library.
C
Added on 2025年5月11日27,342
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LanguageProject Introduction
Summary
OpenSSL is a foundational open-source project providing a command-line tool and libraries for cryptography and network security, widely used to secure communications over computer networks.
Problem Solved
Provides essential cryptographic functions and secure communication protocols necessary for building secure applications and infrastructure, addressing fundamental security requirements in software and networking.
Core Features
TLS/SSL Protocol Support
Comprehensive implementation of TLS and SSL protocols for secure network communication.
Extensive Cryptography Library
A wide array of cryptographic algorithms for encryption, decryption, signing, and hashing.
Certificate Management Utilities
Tools for managing X.509 certificates, Certificate Signing Requests (CSRs), and Certificate Authorities (CAs).
Tech Stack
C
C++
Perl
Assembly
Shell Scripting
Use Cases
OpenSSL is a ubiquitous library used across a wide range of applications and systems requiring secure communication and cryptographic services.
Securing Web Servers (HTTPS)
Details
Used by web servers (like Apache, Nginx) to implement HTTPS, ensuring secure communication between clients and servers.
User Value
Enables encrypted communication, protects data privacy, and authenticates server identity.
Email Encryption and Security
Details
Provides cryptographic functions for email clients and servers to implement S/MIME or STARTTLS for email encryption and secure transport.
User Value
Secures email content and prevents eavesdropping during transmission.
Implementing VPNs and Secure Tunnels
Details
Forms the basis for implementing secure tunnel protocols like OpenVPN and IPSec, providing encrypted connections over public networks.
User Value
Creates secure private networks over the internet, protecting data confidentiality and integrity for remote access or site-to-site connections.
Software Signing and Verification
Details
Used in software distribution to sign executables and libraries, allowing users to verify the integrity and authenticity of the software.
User Value
Ensures users receive tamper-free software from trusted sources, enhancing security against malicious modifications.
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