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OpenSSL cryptographic toolkit

OpenSSL is a robust, commercial-grade, full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols^[openssl.md]. It is also a general-purpose cryptography library, widely used to secure communications against espionage on computer networks^[openssl.md].

Core Components

The toolkit is organized into two main parts^[openssl.md]:

  • A Command-Line Interface (CLI): The openssl command provides a rich set of tools for creating and managing certificates, as well as utilizing various cryptographic algorithms from the shell^[openssl.md].
  • A Cryptography Library: This is a programmatic API that developers can integrate into their applications to implement encryption, decryption, and secure communication capabilities^[openssl.md].

Cryptographic Functionality

OpenSSL is a foundational library for cryptography, offering implementations for a wide array of security standards^[openssl.md]. It supports various encryption algorithms, ensuring data confidentiality, and provides tools for managing cryptographic keys and digital signatures^[openssl.md].

In addition to its core cryptographic functions, the toolkit is frequently used to generate the keys and certificates required by the TLS and SSL protocols^[openssl.md].

  • [[Cryptography]]
  • [[TLS]]
  • [[SSL]]
  • [[PKI]]

Sources

^[openssl.md]