SSL/TLS cryptography library Also known as: openssl@1.0
This formula is keg-only.

Current version

openssl requires the following formula to be installed:
makedepend 1.0.5 Creates dependencies in makefiles

Reverse dependencies

The following formulae require openssl to be installed:
avfs 1.0.2 Virtual file system that facilitates looking inside archives
encfs 1.9.1 Encrypted pass-through FUSE file system
ori 0.8.1_1 Secure distributed file system
s3-backer 1.4.3 FUSE-based single file backing store via Amazon S3
freerdp 1.0.2 X11 implementation of the Remote Desktop Protocol (RDP)
robot-framework 3.0.1 Open source test framework for acceptance testing
x3270 3.5ga9 IBM 3270 terminal emulator for the X Window System and Windows
ntp 4.2.8p10 The Network Time Protocol (NTP) Distribution
ld64 97.17 Updated version of the ld shipped by Apple
percona-xtrabackup 2.4.8 Open source hot backup tool for InnoDB and XtraDB databases
php55 5.5.38_12 PHP Version 5.5
php53 5.3.29_8 PHP Version 5.3
php54 5.4.45_7 PHP Version 5.4
ruby-build 20170914 Install various Ruby versions and implementations
neon 0.30.2 HTTP and WebDAV client library with a C interface
net-snmp 5.7.3 Implements SNMP v1, v2c, and v3, using IPv4 and IPv6
libewf 20140608_1 Library for support of the Expert Witness Compression Format
watchman 4.9.0 Watch files and take action when they change
encfs 1.9.2 Encrypted pass-through FUSE file system
afflib 3.7.16 Advanced Forensic Format
libimobiledevice 1.2.0_2 Library to communicate with iOS devices natively
sane-backends 1.0.27_3 Backends for scanner access
phantomjs 2.1.1 Headless WebKit scriptable with a JavaScript API
freetds@0.91 0.91.112 Libraries to talk to Microsoft SQL Server & Sybase
tarsnap 1.0.39 Online backups for the truly paranoid
hydra 8.6 Network logon cracker which supports many services
megatools 1.9.98 Command-line client for
libcapn 2.0.0 C library to send push notifications to Apple devices
libexosip 4.1.0_1 Toolkit for eXosip2
libfreefare 0.4.0_1 API for MIFARE card manipulations
liboauth 1.0.3_1 C library for the OAuth Core RFC 5849 standard
libopkele 2.0.4_1 C++ implementation of OpenID decentralized identity system
gloox 1.0.20 C++ Jabber/XMPP library that handles the low-level protocol
gtmess 0.97_1 Console MSN messenger client
monkeysphere 0.41 Use the OpenPGP web of trust to verify ssh connections
rdesktop 1.8.3 UNIX client for connecting to Windows Remote Desktop Services
lynx 2.8.8rel.2_1 Text-based web browser
rabbitmq-c 0.8.0 RabbitMQ C client
fetchmail 6.3.26 Fetch mail from a POP, IMAP, ETRN, or ODMR-capable server
shairport 1.1.1 Airtunes emulator
softhsm 2.3.0 Cryptographic store accessible through a PKCS#11 interface
sslsplit 0.5.0_1 Man-in-the-middle attacks against SSL encrypted network connections
sylpheed 3.5.1 Simple, lightweight email-client
ekg2 0.3.1_2 Multiplatform, multiprotocol, plugin-based instant messenger
cadaver 0.23.3_2 Command-line client for DAV
tlsdate 0.0.13 Secure rdate replacement
duo_unix 1.10.1 Two-factor authentication for SSH
podofo 0.9.5_1 Library to work with the PDF file format
proxytunnel 1.9.0_1 Create TCP tunnels through HTTPS proxies
pwsafe 0.2.0_2 Generate passwords and manage encrypted password databases
ngircd 24 Next generation IRC daemon
ettercap 0.8.2_1 Multipurpose sniffer/interceptor/logger for switched LAN
nut 2.7.4 Network UPS Tools: Support for various power devices
opensc 0.17.0 Tools and libraries for smart cards
osslsigncode 1.7.1 Authenticode signing of PE(EXE/SYS/DLL/etc), CAB and MSI files
ldapvi 1.7_3 Update LDAP entries with a text editor
luvit 2.14.2 Asynchronous I/O for Lua
ipmitool 1.8.18_2 Utility for IPMI control with kernel driver or LAN interface
cvsync 0.24.19 Portable CVS repository synchronization utility
mytop 1.9.1_3 Top-like query monitor for MySQL
kore 2.0.0 Web application framework for writing web APIs in C
sngrep 1.4.4 Command-line tool for displaying SIP calls message flows
fq 0.10.5 Brokered message queue optimized for performance
frag_find 1.0.0_1 Hash-based carver tool (formerly 'NPS Bloom Filter package')
freeradius-server 3.0.15 High-performance and highly configurable RADIUS server
freerdp 1.0.2_1 X11 implementation of the Remote Desktop Protocol (RDP)
ftimes 3.11.0_1 System baselining and evidence collection tool
x11vnc 0.9.13_1 VNC server for real X displays
xaric 0.13.7 IRC client
csup 20120305_1 Rewrite of CVSup in C
msmtp 1.6.6 SMTP client that can be used as an SMTP plugin for Mutt
avfs 1.0.5 Virtual file system that facilitates looking inside archives
jose 10 C-language implementation of Javascript Object Signing and Encryption
botan 2.3.0 Cryptographic algorithms and formats library in C++
openssh 7.6p1 OpenBSD freely-licensed SSH connectivity tools
ophcrack 3.7.0 Microsoft Windows password cracker using rainbow tables
libopendkim 2.10.3 Implementation of Domain Keys Identified Mail authentication
xar-mackyle 1.6.1 eXtensible ARchiver
thc-pptp-bruter 0.1.4 Brute force program against PPTP VPN endpoints (TCP port 1723)
profanity 0.5.1 Console based XMPP client
thrift@0.9 0.9.3 Framework for scalable cross-language services development
eralchemy 1.1.0 Simple entity relation (ER) diagrams generation
libav 12.2 Audio and video processing tools
gpac 0.7.1 Multimedia framework for research and academic purposes
ori 0.8.1_1 Secure distributed file system
ncrack 0.6.0 Network authentication cracking tool
blat 36 Genomic sequence search tool
kent-tools 353 Utilities for the UCSC Genome Browser
gammu 1.38.5 Command-line utility to control a phone
tcpdump 4.9.2 Command-line packet analyzer
mutt 1.9.1 Mongrel of mail user agents (part elm, pine, mush, mh, etc.)
ansible@1.9 1.9.6_1 Automate deployment, configuration, and upgrading
ansible@2.0 Automate deployment, configuration, and upgrading
asdf 0.4.0 Extendable version manager with support for Ruby, Node.js, Erlang & more
bigloo 4.3a Scheme implementation with object system, C, and Java interfaces
dnsviz 0.6.7 Tools for analyzing and visualizing DNS and DNSSEC behavior
elinks 0.11.7_2 Text mode web browser
erlang@17 Programming language for highly scalable real-time systems
gwenhywfar 4.18.0 Utility library required by aqbanking and related software
isync 1.3.0 Synchronize a maildir with an IMAP server
libmowgli 2.1.3 Core framework for Atheme applications
libssh 0.7.5 C library SSHv1/SSHv2 client and server protocols
libssh2 1.8.0 C library implementing the SSH2 protocol
libu2f-server 1.0.1 Server-side of the Universal 2nd Factor (U2F) protocol
makepkg 5.0.2 Compile and build packages suitable for installation with pacman
md5sha1sum 0.9.5 Hash utilities
mongodb@2.6 2.6.12 High-performance document-oriented database
mongodb@3.2 3.2.11 High-performance, schema-free, document-oriented database
mysql-cluster 7.5.7 Shared-nothing clustering and auto-sharding for MySQL
mysql-connector-c++ 1.1.9 MySQL database connector for C++ applications
mysql@5.5 5.5.58 Open source relational database management system
openrct2 0.1.1 Open source re-implementation of RollerCoaster Tycoon 2
openvpn 2.4.4 SSL/TLS VPN implementing OSI layer 2 or 3 secure network extension
pincaster 0.6_1 Nosql database with a HTTP/JSON interface
postgres-xc 1.0.4_1 PostgreSQL cluster based on shared-nothing architecture
robot-framework 3.0.2_1 Open source test framework for acceptance testing
sblim-sfcc 2.2.8 Project to enhance the manageability of GNU/Linux system
scrypt 1.2.1 Encrypt and decrypt files using memory-hard password function
siege 4.0.4 HTTP regression testing and benchmarking utility
skipfish 2.10b_1 Web application security scanner
snort 2.9.11 Flexible Network Intrusion Detection System
sqlcipher 3.4.1_2 SQLite extension providing 256-bit AES encryption
sstp-client 1.0.11_1 SSTP (Microsofts Remote Access Solution for PPP over SSL) client
tomcat-native 1.2.14 Lets Tomcat use some native resources for performance
unbound 1.6.7 Validating, recursive, caching DNS resolver
znc 1.6.5 Advanced IRC bouncer
nagios-plugins 2.2.1 Plugins for the nagios network monitoring system
python 2.7.14 Interpreted, interactive, object-oriented programming language
cpprestsdk 2.10.0 C++ libraries for cloud-based client-server communication
mosquitto 1.4.14_2 Message broker implementing the MQTT protocol
ruby 2.4.2_1 Powerful, clean, object-oriented scripting language
ruby@1.8 1.8.7-p374_3 Powerful, clean, object-oriented scripting language
ruby@1.9 1.9.3-p551_5 Powerful, clean, object-oriented scripting language
ruby@2.0 2.0.0-p648_2 Powerful, clean, object-oriented scripting language
ruby@2.1 2.1.10_1 Powerful, clean, object-oriented scripting language
ruby@2.2 2.2.8_1 Powerful, clean, object-oriented scripting language
percona-server-mongodb 3.4.9-2.9 Drop-in MongoDB replacement
lastpass-cli 1.2.2 LastPass command-line interface tool
nginx 1.12.2_1 HTTP(S) server and reverse proxy, and IMAP/POP3 proxy server
credstash 1.14.0 Little utility for managing credentials in the cloud
cryfs 0.9.7 Encrypts your files so you can safely store them in Dropbox, iCloud, etc.
ykman 0.4.6 Tool for managing your YubiKey configuration
bibtexconv 1.1.11 BibTeX file converter
mariadb@10.0 10.0.33 Drop-in replacement for MySQL
mongoose 6.10 Web server build on top of Libmongoose embedded library
xrootd 4.7.1 High performance, scalable, fault-tolerant access to data
apr-util 1.6.1_1 Companion library to apr, the Apache Portable Runtime library
fossil 2.4 Distributed software configuration management
libwebsockets 2.4.1 C websockets server library
center-im 4.22.10_1 Text-mode multi-protocol instant messaging client
ffmpeg@2.8 2.8.13 Play, record, convert, and stream audio and video
postgresql 10.1 Object-relational database system
postgresql@9.4 9.4.15 Object-relational database system
postgresql@9.5 9.5.10 Object-relational database system
postgresql@9.6 9.6.6 Object-relational database system
zabbix 3.4.4 Availability and monitoring solution
gdcm 2.8.4_1 Grassroots DICOM library and utilities for medical files
mupdf 1.11_2 Lightweight PDF and XPS viewer
getdns 1.2.1 Modern asynchronous DNS API
inspircd 2.0.25 Modular C++ Internet Relay Chat daemon
upscaledb 2.2.0_7 Database for embedded devices
zbackup 1.4.4_6 Globally-deduplicating backup tool (based on ideas in rsync)
libtrace 4.0.2 Library for trace processing supporting multiple inputs
lighttpd 1.4.48 Small memory footprint, flexible web-server
opusfile 0.10 API for decoding and seeking in .opus files
bitcoin 0.15.1 Decentralized, peer to peer payment network
cnats 1.7.4 C client for the NATS messaging system
opensaml 2.6.1 Library for Security Assertion Markup Language
monit 5.25.1 Manage and monitor processes, files, directories, and devices
strongswan 5.6.1 VPN based on IPsec
libre 0.5.6 Toolkit library for asynchronous network I/O with protocol stacks
u-boot-tools 2017.11 Universal boot loader
dcmtk 3.6.2 OFFIS DICOM toolkit command-line utilities
nginx-full 1.12.2 HTTP(S) server, reverse proxy, IMAP/POP3 proxy server
rust 1.22.1 Safe, concurrent, practical language
erlang 20.1.7 Programming language for highly scalable real-time systems
nmh 1.7 The new version of the MH mail handler
shairport-sync 3.1.4 AirTunes emulator that adds multi-room capability
knot 2.6.3 High-performance authoritative-only DNS server
termius 1.2.7 CLI tool for (aka
slrn 1.0.3a Powerful console-based newsreader
ucsc-genome-browser 338 Mirror of the UCSC Genome Browser
git 2.15.1 Distributed revision control system
mariadb 10.2.11 Drop-in replacement for MySQL
exim 4.89.1 Complete replacement for sendmail
swi-prolog 7.6.3 ISO/Edinburgh-style Prolog interpreter
php71 7.1.12_23 PHP Version 7.1
php72 7.2.0_11 PHP Version 7.2
pdftoedn 0.34.3_7 Extract PDF document data and save the output in EDN format
php55-mongodb 1.3.4 MongoDB driver for PHP.
php56-mongodb 1.3.4 MongoDB driver for PHP.
php70-mongodb 1.3.4 MongoDB driver for PHP.
php71-mongodb 1.3.4 MongoDB driver for PHP.
php72-mongodb 1.3.4 MongoDB driver for PHP.
arangodb 3.2.9 The Multi-Model NoSQL Database
azure-cli 2.0.22 Microsoft Azure CLI 2.0
tectonic 0.1.7_1 Modernized, complete, self-contained TeX/LaTeX engine
pdnsrec 4.1.0_1 Non-authoritative/recursing DNS server
grpc 1.7.3 Next generation open source RPC library and framework
node-build 2.6.20 Install NodeJS versions
node 9.2.1 Platform built on V8 to build network applications
node@8 8.9.3 Platform built on V8 to build network applications
folly 2017.12.04.00_1 Collection of reusable C++ library artifacts developed at Facebook
percona-server@5.5 5.5.58-38.10 Drop-in MySQL replacement
percona-server@5.6 5.6.38-83.0 Drop-in MySQL replacement
sysbench 1.0.11 System performance benchmark tool
ffmpeg 3.4.1 Play, record, convert, and stream audio and video
gsoap 2.8.57 SOAP stub and skeleton compiler for C and C++
mongodb@3.4 3.4.10 High-performance, schema-free, document-oriented database

Recent formula history

Alex Gaynor openssl 1.0.2n
Alex Gaynor openssl 1.0.2m
ilovezfs Use “squiggly” heredocs.
ilovezfs openssl: use assert_predicate
Mike McQuaid openssl: add HTTP mirror.

Formula code at GitHub