# Install ldid with Homebrew, MacPorts, Nix Lets you manipulate the signature block in a Mach-O binary. Version 2.1.5 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:ldid ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install ldid ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install ldid ``` Evidence: MacPorts ports tree: devel/ldid/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Nix (92%): ```sh nix profile install nixpkgs#ldid ``` Evidence: nixpkgs package indexes: pkgs/by-name/ld/ldid/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:ldid - **Package manager:** Homebrew - **Package manager page:** - **Version:** 2.1.5 - **Source summary:** Lets you manipulate the signature block in a Mach-O binary - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** AGPL-3.0-or-later - **Source archive:** git://git.saurik.com/ldid.git - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - ldid (cli) - ldid2 (cli) - ldid (alias) - ldid2 (alias) ## Dependencies - libplist - openssl@3 ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 2.1.5 - Local data: ok - Upstream repository: https://cydia.saurik.com/info/ldid/ - info: No package-manager update timestamp was available. - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage ldid, the Link Identity Editor, is a small Mach-O signing and entitlement utility associated with Jay Freeman's Cydia ecosystem. Its official Cydia package page describes it as a program for manipulating the signature block in a Mach-O binary. ### Project history The tool grew out of iPhone OS and macOS code-signing work where developers needed a lightweight way to add, refresh, or inspect Mach-O signature metadata. Homebrew packages saurik's Git repository and installs both ldid and an ldid2 symlink, reflecting its long use as a command-line helper rather than a large standalone application. ### Adoption history ldid became a familiar dependency in jailbreak and unsigned iOS development toolchains because it could apply ad-hoc signatures and entitlements outside Apple's full signing workflow. Package-manager availability in Homebrew, MacPorts, and Nix made it reachable on developer workstations even though the primary upstream surface stayed minimal. ### How it is used Typical use is direct command-line signing or inspection: the Cydia page documents signing from scratch, updating hashes on an existing binary, and dumping entitlements. That narrow scope is the point: it handles the Mach-O signature block without becoming a broader codesigning framework. ### Why package nerds care For package maintainers, ldid is interesting because it sits at the boundary between platform policy and Unix-style tooling. It is a tiny utility with outsized importance in iOS packaging workflows, and formulae often have to care about source availability, OpenSSL/libplist compatibility, and conflicting ldid variants. ### Timeline - 2000s: ldid appears in the Cydia/saurik tool ecosystem for Mach-O signature-block manipulation. - 2020s: Homebrew packages saurik's ldid Git repository and installs ldid plus an ldid2 symlink. ### Related projects - Related tools and ecosystems include Apple's codesign utility, Mach-O binary tooling, Cydia packaging, Theos-style iOS development workflows, and downstream ldid forks such as ProcursusTeam/ldid. ### Sources - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** ldid - **Version Scheme:** 0 - **Revision:** 1 - **Head Version:** HEAD - **Conflicts With:** ldid-procursus - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - ldid: normalized package name match | nixpkgs package indexes: pkgs/by-name/ld/ldid/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - MacPorts - ldid: normalized package name match | MacPorts ports tree: devel/ldid/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [libplist](https://www.automicvault.com/pkg/brew/libplist/) - Runtime dependency declared by Homebrew. - [openssl@3](https://www.automicvault.com/pkg/brew/openssl-3/) - Runtime dependency declared by Homebrew. - [binutils](https://www.automicvault.com/pkg/brew/binutils/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [cargo-binutils](https://www.automicvault.com/pkg/brew/cargo-binutils/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [elfx86exts](https://www.automicvault.com/pkg/brew/elfx86exts/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools, mach-o. - [mtoc](https://www.automicvault.com/pkg/brew/mtoc/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools, mach-o. - [objconv](https://www.automicvault.com/pkg/brew/objconv/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [x86_64-linux-gnu-binutils](https://www.automicvault.com/pkg/brew/x86-64-linux-gnu-binutils/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [chrpath](https://www.automicvault.com/pkg/brew/chrpath/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [dwarfutils](https://www.automicvault.com/pkg/brew/dwarfutils/) - Shares av.db curated category or tags: binary-tools, cli, developer-tools. - [ios-webkit-debug-proxy](https://www.automicvault.com/pkg/brew/ios-webkit-debug-proxy/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, ios, libplist. ## Combined YAML source View the package source record on GitHub. [combined/ldid.yml](https://github.com/automic-vault/db/blob/main/combined/ldid.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph