ldid is a tool made by saurik for modifying a binary's entitlements easily. ldid also generates SHA1 hashes for the binary signature, so the iPhone kernel executes the binary.
ldid -e dumps the binary's entitlements.
ldid -Sent.xml sets the binary's entitlements.
The package name in Cydia is "Link Identity Editor", hosted by the Cydia/Telesphoreo repository.
Links
- Bypassing iPhone Code Signatures - saurik's original article that explains ldid
- Source: http://gitweb.saurik.com/ldid.git