macOS
Homebrewvérifié · 100%
brew install libotrlocal Homebrew formula metadata
MacPortsvérifié · 94%
sudo port install libotrMacPorts ports tree · security/libotr/Portfile · Source: api.github.com
brew
Installer libotr avec Homebrew, apk, dnf, MacPorts, Nix, pacman, apt, zypper
Consultez les chemins d'installation, exécutables, métadonnées et notes de sécurité de libotr pour les workflows d'agents IA.
installation
Commandes d'installation supplémentaires
Linux
Alpine Linux apkvérifié · 92%
sudo apk add libotrAlpine Linux edge package indexes · libotr · Source: dl-cdn.alpinelinux.org
Fedora dnfvérifié · 92%
sudo dnf install libotrFedora Rawhide package metadata · libotr · Source: dl.fedoraproject.org
Nixvérifié · 92%
nix profile install nixpkgs#libotrnixpkgs package indexes · pkgs/by-name/li/libotr/package.nix · Source: api.github.com
Arch Linux pacmanvérifié · 92%
sudo pacman -S libotrArch Linux sync databases · libotr · Source: geo.mirror.pkgbuild.com
Debian aptvérifié · 92%
sudo apt install libotr5-binDebian stable package indexes · libotr5-bin · Source: deb.debian.org
openSUSE zyppervérifié · 92%
sudo zypper install libotr-developenSUSE Tumbleweed package metadata · libotr-devel · Source: download.opensuse.org
aperçu
Résumé du paquet
Off-The-Record (OTR) messaging library
Liens du projet
Commandes et alias
- otr_mackey
- otr_modify
- otr_parse
- otr_readforge
- otr_remac
- otr_sesskeys
historique
Historique du projet et usages
libotr is the portable C library and toolkit for Off-the-Record Messaging, a protocol for private instant-messaging conversations with encryption, authentication during the conversation, deniability after the fact, and perfect forward secrecy.
Historique du projet
OTR came from academic and cypherpunk work on making instant messaging behave more like an off-the-record conversation than signed email. The official OTR site links the library, the Pidgin plugin, protocol descriptions, and the original research papers as one software-and-protocol family.
libotr served as the reference C implementation for client developers. The project paired the LGPL library with GPL toolkit programs and with pidgin-otr, making it practical for multiprotocol IM clients to add OTR without each client reimplementing the cryptographic state machine.
Historique d'adoption
OTR became especially associated with desktop XMPP and multiprotocol IM clients. XMPP Extension Protocol 0364 described OTR as the de facto standard for end-to-end encryption in XMPP, while the OTR site maintained user-facing downloads for pidgin-otr, source repositories, protocol documents, and implementation lists.
Modes d'utilisation
Applications link libotr to negotiate OTR sessions, run the authenticated key exchange, encrypt and authenticate data messages, and expose higher-level verification flows such as the Socialist Millionaires' Protocol. The Homebrew package also installs toolkit programs for inspecting, modifying, and testing OTR message artifacts.
Pourquoi les passionnés de paquets s'y intéressent
libotr matters because it is a small library package carrying a big protocol story: it let package managers deliver interoperable deniable encryption to chat clients before modern app-specific encrypted messengers became dominant. Its 2016 security release also shows why distro maintainers cared about keeping even niche crypto libraries patched.
Chronologie
- 2004: The OTR design was published in the WPES paper linked from the official OTR documentation.
- 2012: libotr 4.0.0 and pidgin-otr 4.0.0 were released.
- 2014: libotr 4.1.0 was released with build-system, secure-memory, constant-time comparison, and API changes.
- 2016: libotr 4.1.1 fixed CVE-2016-2851 and tightened protocol parsing.
Related projects
- pidgin-otr is the best-known client plugin distributed alongside libotr by the OTR project.
- The OTR protocol documents define the wire protocol that libotr implements.
- XMPP clients and multiprotocol IM clients were the main ecosystem where libotr was reused.
Sources
posture de sécurité
Niveau de risque : vert
library-like package without higher-risk signals.
Classificateur de risque
risque vert · confiance faible · appliance
Pourquoi
- library-like package without higher-risk signals
Signaux
- metadata:library-like
Comportement d'installation
- Aucun hook post-install Homebrew n’est enregistré dans les métadonnées de formule.
- Les métadonnées de bottle Homebrew sont disponibles pour 13 plateformes.
- S’installe avec 2 dépendances d’exécution.
Revue recommandée
Avant une utilisation sans surveillance par un agent, vérifiez si l'outil lit des identifiants en clair, écrit un état distant, publie des artefacts ou lance des plugins.
exécutables
Exécutables installés
| Commande | Type | Exposition | Note |
|---|---|---|---|
otr_mackey | cli | exécutable global | |
otr_modify | cli | exécutable global | |
otr_parse | cli | exécutable global | |
otr_readforge | cli | exécutable global | |
otr_remac | cli | exécutable global | |
otr_sesskeys | cli | exécutable global |
fraîcheur
Version et fraîcheur
Ces signaux séparent l'âge de génération de la page, l'activité du gestionnaire de paquets et la comparaison avec les versions amont. Un retard de version n'est signalé que lorsqu'une URL de preuve et des versions comparables sont présentes.
page générée2026-07-10
version du gestionnaire4.1.1
gestionnaire mis à jour2026-06-19
données localesOK
amontnot checked
dernière version détectéenon détecté
- infoRelease/tag comparison is only available for GitHub repositories.https://otr.cypherpunks.ca/confiance none
métadonnées d'installation
Métadonnées du paquet
| Clé du paquet | brew:libotr |
|---|---|
| Version | 4.1.1 |
| Gestionnaire de paquets | Homebrew |
| Page du gestionnaire de paquets | https://formulae.brew.sh/formula/libotr |
| Page d'accueil | https://otr.cypherpunks.ca/ |
| Dépôt | https://bugs.otr.im/git/libotr.git |
| Docs amont | https://otr.cypherpunks.ca/ |
| Licence | LGPL-2.1-only AND GPL-2.0-only |
| Archive source | https://otr.cypherpunks.ca/libotr-4.1.1.tar.gz |
| Dernière mise à jour | 2026-06-19T12:32:38-07:00 |
| Pulse | updated |
| Dépendances | libgcrypt, libgpg-error |
| Bouteille | disponible (sur arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux) |
| post-install Homebrew | non défini |
| Service | aucun déclaré |
faits du registre
Détails de la base source
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | libotr |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
correspondances dans les bases sources
Autres enregistrements de gestionnaires de paquets
Les correspondances proviennent d’index externes de gestionnaires de paquets et restent séparées des liens de paquets Automic Vault locaux.
Debian apt95%
libotr5-bin 4.1.1-6
toolkit for Off-the-Record Messaging library
sudo apt install libotr5-bin- Section: misc
- Architecture: amd64
- Source Package: libotr
- 3 Dépendances
- normalized package name match
- Correspondance par : Libotr
Debian apt95%
libotr5-dev 4.1.1-6
Off-the-Record Messaging library development files
sudo apt install libotr5-dev- Section: libdevel
- Architecture: amd64
- Source Package: libotr
- 2 Dépendances
- 1 dépendances optionnelles
- normalized package name match
- Correspondance par : Libotr
Debian apt95%
libotr5t64 4.1.1-6
Off-the-Record Messaging library
sudo apt install libotr5t64- Section: libs
- Architecture: amd64
- Source Package: libotr
- 2 Dépendances
- 1 fournit
- 1 dépendances optionnelles
- normalized package name match
- Correspondance par : Libotr
Nix95%
libotr
nix profile install nixpkgs#libotr- normalized package name match
- Correspondance par : Libotr
Ubuntu apt95%
libotr5-bin 4.1.1-5.1build1
toolkit for Off-the-Record Messaging library
sudo apt install libotr5-bin- Section: universe/misc
- Architecture: amd64
- Source Package: libotr
- 3 Dépendances
- normalized package name match
- Correspondance par : Libotr
Ubuntu apt95%
libotr5-dev 4.1.1-5.1build1
Off-the-Record Messaging library development files
sudo apt install libotr5-dev- Section: universe/libdevel
- Architecture: amd64
- Source Package: libotr
- 2 Dépendances
- 1 dépendances optionnelles
- normalized package name match
- Correspondance par : Libotr
Ubuntu apt95%
libotr5t64 4.1.1-5.1build1
Off-the-Record Messaging library
sudo apt install libotr5t64- Section: universe/libs
- Architecture: amd64
- Source Package: libotr
- 2 Dépendances
- 1 fournit
- 1 dépendances optionnelles
- normalized package name match
- Correspondance par : Libotr
apk95%
libotr 4.1.1-r5
Off The Record Messaging, an encryption library for secure IM conversations
sudo apk add libotr- License: LGPL-2.1-only
- Architecture: x86_64
- Source Package: libotr
- 1 Dépendances
- 1 fournit
- normalized package name match
- Correspondance par : Libotr
apk95%
libotr-dev 4.1.1-r5
Off The Record Messaging, an encryption library for secure IM conversations (development files)
sudo apk add libotr-dev- License: LGPL-2.1-only
- Architecture: x86_64
- Source Package: libotr
- 1 Dépendances
- 1 fournit
- normalized package name match
- Correspondance par : Libotr
apk95%
libotr-doc 4.1.1-r5
Off The Record Messaging, an encryption library for secure IM conversations (documentation)
sudo apk add libotr-doc- License: LGPL-2.1-only
- Architecture: x86_64
- Source Package: libotr
- normalized package name match
- Correspondance par : Libotr
apk95%
libotr-tools 4.1.1-r5
libotr tools
sudo apk add libotr-tools- License: LGPL-2.1-only
- Architecture: x86_64
- Source Package: libotr
- 1 Dépendances
- 1 fournit
- normalized package name match
- Correspondance par : Libotr
dnf95%
libotr 4.1.1-25.fc44
Off-The-Record Messaging library and toolkit
sudo dnf install libotr- License: GPL-2.0-only AND LicenseRef-Callaway-LGPLv2
- Category: Unspecified
- Architecture: i686
- Source Package: libotr
- 6 Dépendances
- 3 fournit
- normalized package name match
- Correspondance par : Libotr
dnf95%
libotr-devel 4.1.1-25.fc44
Development library and include files for libotr
sudo dnf install libotr-devel- License: GPL-2.0-only AND LicenseRef-Callaway-LGPLv2
- Category: Unspecified
- Architecture: i686
- Source Package: libotr
- 4 Dépendances
- 2 fournit
- normalized package name match
- Correspondance par : Libotr
pacman95%
libotr 4.1.1-6
Off-the-Record Messaging Library and Toolkit
sudo pacman -S libotr- License: GPL-2.0-only AND LGPL-2.1-only
- Architecture: x86_64
- 2 Dépendances
- normalized package name match
- Correspondance par : Libotr
zypper95%
libotr-devel 4.1.1-4.12
Include files and development libraries
https://www.cypherpunks.ca/otr/
sudo zypper install libotr-devel- License: GPL-2.0-only AND LGPL-2.1-only
- Category: Development/Libraries/C and C++
- Architecture: x86_64
- Source Package: libotr
- 3 Dépendances
- 2 fournit
- normalized package name match
- Correspondance par : Libotr
zypper95%
libotr-tools 4.1.1-4.12
"Off The Record" messaging library toolkit
https://www.cypherpunks.ca/otr/
sudo zypper install libotr-tools- License: GPL-2.0-only
- Category: Development/Libraries/C and C++
- Architecture: x86_64
- Source Package: libotr
- 3 Dépendances
- 1 fournit
- normalized package name match
- Correspondance par : Libotr
piste source
Généré depuis les données du dépôt
Cette page est servie par av-web depuis l'artéfact SQLite privé des paquets généré par scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Sources utilisées
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment