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2fa Command-line client for two-factor authentication
acmesh Let's Encrypt ACME client in shell script
aide Free intrusion detection system for checking file integrity
aide06 Older intrusion detection system for checking file integrity
amap Applications and Services scanner
amass In-depth Attack Surface Mapping and Asset Discovery
antonym Anonymous nymserver account maintenance tool
ap-modsecurity2 Intrusion detection and prevention engine for web applications
apg Tool set for random password generation
argon2 Password hash Argon2
arirang Powerful webserver security scanner
asignify Yet another signify tool
authelia Single Sign-On Multi-Factor portal for web apps
avcheck Mail content filter for SMTP servers
Bastille System hardening tool focusing on educating the user
bcrypt Cross platform file encryption utility
bearssl Implementation of the SSL/TLS protocol (RFC 5246)
beecrypt Multipurpose cryptographic library
bitstir Entropy restoration daemon
botan Portable, easy to use, and efficient C++ crypto library
botan-devel Portable, easy to use, and efficient C++ crypto library
ca-certificates Root CA certificates from the Mozilla Project
caff Various GnuPG related tools
ccid Middleware to access a smart card using SCard API (PC/SC)
cfs Encrypting file system, using NFS as its interface
chkrootkit Locally checks for signs of a rootkit
clamav Anti-virus toolkit
clamav-doc Anti-virus toolkit documents
clusterssh Cluster administration tool
codecrypt Post-quantum cryptographic software
CoolKey Driver support for the CoolKey and CAC products
courier-authlib Courier Authentication Library
crack The Sensible Unix Password Cracker
cracklib Library used to enforce strong passwords
credns Validates DNSSEC in the DNS notify/transfer-chain
crypto++ Free C++ class library of Cryptographic Primitives
CSP Simple PKI Toolkit
cvm Credential Validation Modules
cy2-anonymous Cyrus SASL ANONYMOUS authentication plugin
cy2-crammd5 Cyrus SASL CRAM-MD5 authentication plugin
cy2-digestmd5 Cyrus SASL DIGEST-MD5 authentication plugin
cy2-gssapi Cyrus SASL GSSAPI authentication plugin
cy2-ldapdb Cyrus SASL LDAPDB authentication plugin
cy2-login Cyrus SASL LOGIN authentication plugin
cy2-ntlm Cyrus SASL NTLM authentication plugin
cy2-otp Cyrus SASL OTP authentication plugin
cy2-plain Cyrus SASL PLAIN authentication plugin
cy2-saml Crude SAML assertion validator for bridging WebSSO and SASL
cy2-scram Cyrus SASL SCRAM authentication plugin
cy2-sql Cyrus SASL SQL authentication plugin
cyrus-sasl Simple Authentication and Security Layer
cyrus-sasl-xoauth2 XOAUTH2 mechanism plugin for cyrus-sasl
cyrus-saslauthd Cyrus SASL plaintext authentication daemon
dcfldd Enhanced version of GNU dd with features useful for forensics
ddos-scan Scan for a limited set of distributed denial of service (ddos) agents
dehydrated Letsencrypt/acme client implemented as a shell-script
destroy Program to securely destroy files on the hard disk
dhbitty Small public key ECDH encryption/decryption program
dirb Web Content Scanner
dnssec-tools Toolkit to ease the deployment of DNSSEC related technologies
doas Execute commands as another user
dropbear Small SSH2 server and client, aimed at embedded market
dsniff Password sniffer (webspy)
dsniff-nox11 Password sniffer
duo-unix Duo two-factor authentication for Unix systems
easy-rsa CLI utility to build and manage a PKI CA
EasyPG GnuPG interface for emacs
ecap_clamav_adapter eCAP ClamAV adapter
egd EGD: Entropy Gathering Daemon
engine-pkcs11 PKCS#11 engine for OpenSSL
ent Entropy calculation and analysis of putative random sequences
erlang-epam epam helper for Erlang / Elixir PAM authentication support
erlang-fast_tls TLS / SSL OpenSSL-based native driver for Erlang / Elixir
erlang-jose JSON Object Signing and Encryption
erlang-p1_acme Erlang ACME client (RFC8555)
erlang-p1_oauth2 Erlang Oauth2 implementation
erlang-pkix PKIX certificates management library for Erlang
fail2ban Scans log files and bans IP that makes too many password failures
flawfinder Python program to find flaws in C/C++ programs
fprint-demo Simple GTK+ application to demonstrate libfprint's capabilities
fragroute Tool for intercepting, modifying and rewriting egress traffic
fsh Fast remote command execution
fwbuilder Firewall Builder GUI
gajim-plugin-omemo (V) OMEMO encryption support for Gajim
gcr Library for crypto UI and related tasks
gnome-keyring GNOME password and secret manager
gnu-crypto GPL implementation of the Java Crypto Extensions
gnu-pw-mgr Password manager
gnupg GNU Privacy Guard, public-Key encryption and digital signatures
gnupg-pkcs11-scd OpenSC smart card support for GnuPG
gnupg2 GnuPG with OpenPGP and S/MIME capabilities
gnutls Transport Layer Security library
go-asn1-ber ASN1 BER Encoding/Decoding Library for the GO programming language
go-crypt Store and retrieve encrypted configs from etcd or consul
go-crypto Go supplementary cryptography libraries
go-crypto-acme ACME library from go-crypto
go-mkcert Make locally trusted development certificates
go-oauth2 OAuth 2 library for Go
go-sftp SFTP support for the go.crypto/ssh package
go-xxhash Go implementation of the 64bit xxhash algorithm XXh64