41 lines
2.8 KiB
Markdown
41 lines
2.8 KiB
Markdown
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## Intro
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[](https://gitter.im/drwetter/testssl.sh?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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`testssl.sh` is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as some cryptographic flaws. It's designed to provide clear output for your "is this good or bad" decision.
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It is working on every Linux distribution out of the box with some limitations of disabled features from the openssl client -- some workarounds are done with bash-socket-based checks. It also works on BSD and other Unices out of the box, supposed they have `/bin/bash` and standard tools like sed and awk installed. MacOS X and Windows (using MSYS2) work too. OpenSSL version >= 1 is highly recommended. OpenSSL version >= 1.0.2 is needed for better LOGJAM checks and to display bit strengths for key exchanges.
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On github you will find in the master branch the development version of the software -- with new features and maybe some bugs. For the stable version and a more thorough description of the software please see [testssl.sh](https://testssl.sh/ "Go to the site with the stable version and more documentation").
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New features in the upcoming stable release 2.6 are:
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* display matching key (HPKP)
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* LOGJAM 1: check DHE_EXPORT cipher
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* LOGJAM 2: displays DH(/ECDH) bits in wide mode on negotiated ciphers
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* "wide mode" option for checks like RC4, BEAST. PFS. Displays hexcode, kx, strength, DH bits, RFC name
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* TLS_FALLBACK_SCSV check -- Thx @JonnyHightower
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* (HTTP) proxy support! -- Thx @jnewbigin
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* Extended validation certificate detection
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* Run in default mode through all ciphers at the end of a default run
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* will test multiple IP adresses in one shot, --ip=<adress|"one"> restricts it accordingly
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* can scan STARTTLS+XMPP by also supplying the XMPP domain (to-option in XML streams).
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* support of sockets for STARTTLS protocols (with exception of SSLv2 you need to supply EXPERIMENTAL=yes)
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* mass testing file option ``--file``, see https://twitter.com/drwetter/status/627619848344989696
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* TLS time for STARTTLS protocols
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* TLS 1.0-1.1 as socket per default in production
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* binary directory provides out of the box better binaries (Linux 32+64 Bit, Darwin 64 bit, FreeBSD 64 bit)
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* LibreSSL fixes, still not recommended to use though (see https://testssl.sh/)
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Currently we're running 2.6rc1. means it's feature freeze and latest bugs are being squashed.
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Contributions, feedback, also bug reports are welcome! For contributions please note: One patch per feature -- bug fix/improvement. Please test your changes thouroughly as reliability is important for this project.
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Please file bug reports @ https://github.com/drwetter/testssl.sh/issues .
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Update notification here or @ [twitter](https://twitter.com/drwetter).
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