A framework for publicly logging and auditing TLS certificates to detect misissued or malicious certificates.
Certificate Transparency is an open-source framework for publicly logging and auditing TLS certificates. It creates an append-only, tamper-evident log where Certificate Authorities (CAs) must record every certificate they issue, allowing for independent verification and detection of misissued or malicious certificates. The project provides client tools and libraries to interact with these logs and verify certificate authenticity.
Security engineers, system administrators, and developers working with TLS certificates, public key infrastructure (PKI), or Certificate Authorities who need to monitor and audit certificate issuance.
It enhances web security by making certificate issuance transparent and auditable, reducing the risk of undetected malicious certificates. Unlike proprietary solutions, it's an open standard with multiple client implementations, fostering a more secure and accountable PKI ecosystem.
Auditing for TLS certificates.
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Provides a tamper-evident, append-only log for TLS certificates, enabling independent verification and detection of misissuances, as outlined in the introduction and key features.
Includes client libraries in C++ and Python for interacting with CT logs, detailed in the code layout section, facilitating integration into diverse tech stacks.
Uses a Merkle tree implementation to efficiently handle large volumes of certificate data, as mentioned in the key features, ensuring performance for audit trails.
Based on an open framework widely adopted by CAs and browsers, enhancing PKI security through transparency, per the philosophy section.
The C++ log server implementation is no longer actively maintained, with the README explicitly recommending Go-based alternatives for new deployments, limiting its usefulness for server setups.
Requires gclient and numerous dependencies like libevent and OpenSSL, with a multi-step build process and troubleshooting for compiler warnings, making setup cumbersome and error-prone.
Only tested on older platforms such as Ubuntu 14.04 and OS X 10.10, which may not be compatible with modern systems without significant tweaking, as noted in the build troubleshooting.