| acme | An implementation of the ACME protocol |
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| acme-sh | A pure Unix shell script implementing ACME client protocol |
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| acme-tiny | A tiny, auditable script for Let's Encrypt's ACME Protocol |
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| acr38u | Non CCID driver for ACR38 AC1038-based Smart Card Reader |
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| adcli | Tool for performing actions on an Active Directory domain |
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| aescrypt | Advanced file encryption using AES |
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| aespipe | Encrypts data from stdin to stdout |
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| age | A simple, modern and secure encryption tool (and Go library) |
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| argon2 | Password hashing software that won the Password Hashing Competition (PHC) |
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| asedriveiiie-serial | ASEDriveIIIe Serial Card Reader |
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| asedriveiiie-usb | ASEDriveIIIe USB Card Reader |
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| asekey | ASEKey USB SIM Card Reader |
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| autofirma-bin | Spanish government certificate request generator |
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| badkeys | Check cryptographic keys for known weaknesses |
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| bcwipe | Secure file removal utility |
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| bsign | embed secure hashes (SHA1) and digital signatures (GNU Privacy Guard) into files |
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| ccid | CCID free software driver |
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| ccrypt | Encryption and decryption |
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| certbot | Let's Encrypt client to automate deployment of X.509 certificates |
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| certbot-apache | Apache plugin for Certbot (Let's Encrypt client) |
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| certbot-dns-dnsimple | DNSimple Authenticator plugin for Certbot (Let's Encrypt Client) |
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| certbot-dns-nsone | NS1 DNS Authenticator plugin for Certbot (Let's Encrypt Client) |
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| certbot-nginx | Nginx plugin for Certbot (Let's Encrypt client) |
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| cfssl | Cloudflare's PKI and TLS toolkit |
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| chntpw | Offline Windows NT Password & Registry Editor |
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| ckpass | ncurses based password database client compatible with KeePass 1.x databases |
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| codecrypt | Post-quantum cryptography tool |
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| codegroup | encode / decode binary file as five letter codegroups |
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| configuradorfnmt | Spanish government certificate request generator |
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| coolkey | Linux Driver support for the CoolKey and CAC products |
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| crackpkcs12 | Multithreaded program to crack PKCS#12 files |
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| cryptopant | C library for IP address anonymization using crypto-PAn algorithm |
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| cryptor | Simple GUI application for gocryptfs |
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| debian-archive-keyring | GnuPG archive keys of the Debian archive |
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| dehydrated | A client for signing certificates with an ACME-server |
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| dieharder | An advanced suite for testing the randomness of RNGs |
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| easy-rsa | Small RSA key management package, based on OpenSSL |
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| efitools | Tools for manipulating UEFI secure boot platforms |
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| eid-mw | Electronic Identity Card middleware supplied by the Belgian Federal Government |
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| ekeyd | Entropy Key userspace daemon |
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| elettra | Plausible deniable file cryptography |
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| envchain | Save environment variables in a secret vault |
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| fcrackzip | Zip password cracker |
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| gcr | Libraries for cryptographic UIs and accessing PKCS#11 modules |
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| gifshuffle | GIF colourmap steganography |
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| glep63-check | GLEP 63 compliance checker for OpenPGP keys |
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| gnupg | The GNU Privacy Guard, a GPL OpenPGP implementation |
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| gnupg-pkcs11-scd | PKCS#11 support for GnuPG |
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| gocryptfs | Encrypted overlay filesystem written in Go |
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| gorilla | Password Safe in secure way with GUI interface |
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| gpa | GNU Privacy Assistant (GPA): a graphical user interface for GnuPG |
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| gpgme | GnuPG Made Easy is a library for making GnuPG easier to use |
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| gpg-ringmgr | GPG Keyring Manager to handle large GPG keyrings more easily |
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| gpgstats | GPGstats calculates statistics on the keys in your key-ring |
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| hashalot | Reads a passphrase and prints a hash |
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| hashcat | World's fastest and most advanced password recovery utility |
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| hashcat-utils | a set of small utilities that are useful in advanced password cracking |
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| heimdal | Kerberos 5 implementation from KTH |
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| ima-evm-utils | Supporting tools for IMA and EVM |
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| jacksum | Java utility for working with checksums, CRCs, and message digests (hashes) |
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| jetring | GPG keyring maintenance using changesets |
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| jitterentropy | Hardware RNG based on CPU timing jitter |
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| jitterentropy-rngd | Jitter RNG daemon |
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| johntheripper | fast password cracker |
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| johntheripper-jumbo | Fast password cracker, community enhanced version |
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| kali-archive-keyring | GnuPG archive keys of the Kali archive |
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| kbfs | Keybase Filesystem (KBFS) |
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| keybase | Keybase client |
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| keylookup | A tool to fetch PGP keys from keyservers |
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| keysmith | OTP client for Plasma Mobile and Desktop |
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| kstart | Modified versions of kinit for refreshing kerberos tickets automatically |
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| lego | Let's Encrypt/ACME client (like certbot or acme.sh) and library written in Go |
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| libb2 | C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp |
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| libmd | Message Digest functions from BSD systems |
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| libscrypt | Shared library to implement the scrypt algorithm |
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| libsecret | GObject library for accessing the freedesktop.org Secret Service API |
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| libu2f-host | Yubico Universal 2nd Factor (U2F) Host C Library |
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| libu2f-server | Yubico Universal 2nd Factor (U2F) server C Library |
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| loop-aes-losetup | Loop-AES losetup utility |
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| mcrypt | Replacement of the old unix crypt(1) |
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| md5deep | Expanded md5sum program with recursive and comparison options |
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| md6sum | A C implementation of MD6 |
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| mhash | Library providing a uniform interface to a large number of hash algorithms |
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| minisign | Dead simple tool to sign files and verify signatures |
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| mit-krb5 | MIT Kerberos V |
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| mit-krb5-appl | Kerberized applications split from the main MIT Kerberos V distribution |
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| mkp224o | Vanity address generator for v3 Tor hidden service addresses |
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| monkeysphere | Leverage the OpenPGP web of trust for OpenSSH and Web authentication |
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| moolticute | Mooltipass crossplatform daemon/tools |
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| nasty | Proof-of-concept GPG passphrase recovery tool |
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| nitrocli | A command line tool for interacting with Nitrokey devices |
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| nwipe | Securely erase disks using a variety of recognized methods |
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| onak | onak is an OpenPGP keyserver |
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| ophcrack | A time-memory-trade-off-cracker |
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| ophcrack-tables | Tables available for ophcrack |
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| osslsigncode | Platform-independent tool for Authenticode signing of EXE/CAB files |
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| p11-kit | Provides a standard configuration setup for installing PKCS#11 |
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| paperkey | OpenPGP key archiver |
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| pdfcrack | Tool for recovering passwords and content from PDF-files |
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| pesign | Tools for manipulating signed PE-COFF binaries |
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| pgpdump | A PGP packet visualizer |
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| pinentry | Simple passphrase entry dialogs which utilize the Assuan protocol |
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| pius | A tool for signing and email all UIDs on a set of PGP keys |
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| pkcrack | PkZip cipher breaker |
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| pkcs11-data | Utilities for PKCS#11 data object manipulation in |
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| pkcs11-dump | Utilities for PKCS#11 token content dump |
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| princeprocessor | Standalone password candidate generator using the PRINCE algorithm |
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| qca | Qt Cryptographic Architecture (QCA) |
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| quickcrypt | gives you a quick MD5 Password from any string |
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| rainbowcrack | Hash cracker that precomputes plaintext - ciphertext pairs in advance |
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| rhash | Console utility and library for computing and verifying file hash sums |
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| rotix | Rotix allows you to generate rotational obfuscations |
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| rpm-sequoia | Implementation of the RPM PGP interface using Sequoia |
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| sbctl | Secure Boot key manager |
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| sbsigntools | Utilities for signing and verifying files for UEFI Secure Boot |
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| scdrand | Feed kernel entropy pool from smartcard's TRNG |
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| scrypt | A simple password-based encryption utility using scrypt key derivation function |
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| scute | A PKCS #11 module for OpenPGP smartcards |
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| seahorse | Manage your passwords and encryption keys |
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| sequoia-chameleon-gnupg | Sequoia's reimplementation of the GnuPG interface |
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| sequoia-sop | Implementation of the Stateless OpenPGP Command Line Interface using Sequoia |
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| sequoia-sq | CLI of the Sequoia OpenPGP implementation |
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| sequoia-sqv | A simple OpenPGP signature verification program |
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| shash | Generate or check digests or MACs of files |
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| signify | Cryptographically sign and verify files |
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| signing-party | A collection of several tools related to OpenPGP |
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| simple-tpm-pk11 | Simple PKCS11 provider for TPM chips |
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| ssdeep | Computes context triggered piecewise hashes (fuzzy hashes) |
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| ssss | Shamir's Secret Sharing Scheme |
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| stan | Stan analyzes binary streams and calculates statistical information |
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| stoken | Software Token for Linux/UNIX |
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| swtpm | Libtpms-based TPM emulator |
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| tc-play | A free, pretty much fully featured and stable TrueCrypt implementation |
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| tpm2-abrmd | TPM2 Access Broker & Resource Manager |
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| tpm2-openssl | OpenSSL Provider for TPM2 integration |
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| tpm2-pkcs11 | A PKCS#11 interface for TPM2 hardware |
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| tpm2-tools | Tools for the TPM 2.0 TSS |
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| tpm2-totp | Attest the trustworthiness of a device against a human using time-based OTP |
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| tpm2-tss | TCG Trusted Platform Module 2.0 Software Stack |
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| tpm-tools | TrouSerS' support tools for the Trusted Platform Modules |
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| trousers | An open-source TCG Software Stack (TSS) v1.1 implementation |
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| ubuntu-keyring | GnuPG archive keys of the Ubuntu archive |
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| veracrypt | Disk encryption with strong security based on TrueCrypt |
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| xca | A GUI to OpenSSL, RSA public keys, certificates, signing requests etc |
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| xor-analyze | Program for cryptanalyzing xor 'encryption' with variable key length |
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| yubihsm-connector | Server to expose YubiHSM 2 to network |
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| yubihsm-shell | Components used to interact with the YubiHSM 2 |
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| yubikey-manager | Python library and command line tool for configuring a YubiKey |
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| yubioath-flutter-bin | Yubico Authenticator for TOTP |
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| zulucrypt | Front end to cryptsetup |
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