install

Additional install commands

macOS

Homebrewverified · 100%

brew install ldid

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install ldid

MacPorts ports tree · devel/ldid/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#ldid

nixpkgs package indexes · pkgs/by-name/ld/ldid/package.nix · source: api.github.com

overview

Package summary

Lets you manipulate the signature block in a Mach-O binary

Project links

Commands and aliases

ldid
ldid2

history

Project history and usage

ldid, the Link Identity Editor, is a small command-line utility from Jay Freeman's Cydia ecosystem for manipulating the signature block in a Mach-O binary.

Project history

ldid emerged from iPhone OS and macOS code-signing work that needed a lightweight way to add, refresh, or inspect Mach-O signature metadata outside Apple's full signing workflow. Upstream remains a compact utility hosted in saurik's source repository rather than a broad signing framework.

Adoption history

ldid became familiar in jailbreak and unsigned iOS development toolchains because it can apply ad-hoc signatures and entitlements. The supplied package metadata records availability through Homebrew, MacPorts, and Nix, extending the tool beyond the Cydia packaging environment.

How it is used

The official Cydia page documents three core operations: use -S to sign a binary from scratch and allocate entitlements, -s to update hashes on an existing binary, and -e to dump entitlements.

Why package nerds care

For package maintainers, ldid is a small tool with outsized importance at the boundary of Mach-O packaging, platform signing policy, and iOS development workflows.

Timeline

2000s: ldid enters the Cydia/saurik tool ecosystem for Mach-O signature manipulation.
2020s: Homebrew, MacPorts, and Nix package ldid for developer workstations.

Related projects

Related tools and ecosystems include Apple's codesign utility, Cydia packaging, Theos-style iOS development workflows, and general Mach-O binary tooling.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 2 runtime dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`ldid`	cli	global executable
`ldid2`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-04

manager version2.1.5

manager updated

local dataok

upstreamnot checked

latest detectednot detected

https://cydia.saurik.com/info/ldid/

infoNo package-manager update timestamp was available.low confidence
infoRelease/tag comparison is only available for GitHub repositories.https://cydia.saurik.com/info/ldid/none confidence

install metadata

Package metadata

Package key	brew:ldid
Version	2.1.5
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/ldid
Homepage	https://cydia.saurik.com/info/ldid/
Upstream docs	https://cydia.saurik.com/info/ldid/
License	AGPL-3.0-or-later
Source archive	git://git.saurik.com/ldid.git
Dependencies	libplist, openssl@3
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

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	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

ldid

nix profile install nixpkgs#ldid

normalized package name match
Matched by: Ldid

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ld/ldid/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

MacPorts95%

ldid

sudo port install ldid

normalized package name match
Matched by: Ldid

MacPorts ports tree · api.github.com · MacPorts ports tree: devel/ldid/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/ldid.yml

Used sources

Geiger risk classifier
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment
pkg.so package database
pkgdb category and tag curation

Install ldid with Homebrew, MacPorts, Nix