How to re-sign a .ipa file without source code.

Re-Signing an App Without Source Code:

Even without access to the source code,  apps can be re-signed with an updated provisioning profile. The attached script (resign_appid.sh_.zip) can be used to re-sign the app on OSX 10.9.4+ with Xcode 6+. Ensure the .ipa file and provisioning profile are located in the same 

1. Run the resign script by using the command listed below with the following syntax:

./resign_appid.sh --ipa yourIPA.ipa --profile yourProvisingProfile --identity "iPhone Distribution: Developer Name (xxxxxxxxxx)" --out yourNewResignedIPA.ipa

2. Once the new .ipa file has been created, upload it to Mobility Suite. The associated users will receive a push notification indicating an updated version of the app is available for download and installation.

The script's permissions may need to be modified before it can be run after it has been uncompressed. In order to uncompress, qualify the script for use, and execute it the following commands need to be run from the Terminal in the directory where the script is located:

yum -y install unzip
unzip resign_appid.sh_.zip -d ~
cd ~
chmod +x resign_appid.sh
./resign_appid.sh

​​For reference, the contents of the attached 'resign_appid.sh' script has been included below:​

#!/bin/sh

log_info=0
log_info()
{
	if [ $log_info -gt 0 ]
	then
		echo "$*"
	fi	
}

log_err()
{
	echo "$*"
}

usage ()
{
	log_err "resign.sh --ipa path [--entitlements path] [--profile path] [--identity \"iPhone Distribution: Symantec Corporation\"] [--out path]"
	rm -rf Payload
	rm -rf ProvisionProfile.plist
	rm -rf Entitlements.plist
}

numargs=$#
for ((i=1 ; i <= numargs ; i++))
do
	if [ "$1" == "--ipa" ]; then ipa="$2" shift; fi
	if [ "$1" == "--entitlements" ]; then entitlements="$2" shift; fi
	if [ "$1" == "--profile" ]; then profile="$2" shift; fi
	if [ "$1" == "--dentity" ]; then identity="$2" shift; fi
	if [ "$1" == "--out" ]; then output="$2" shift; fi
    shift
done

# check if ipa file exist
if [ -z "$ipa" ] || [ ! -e "$ipa" ]
then
	if [ -z "$ipa" ]
	then
		log_err "does not specify ipa file"
	else
		log_err "ipa file ($ipa) does not exist"
	fi
	usage
	exit -1
fi

log_info "input parameters:"
log_info "ipa: \"$ipa\""
log_info "entitlements: \"$entitlements\""
log_info "profile: \"$profile\""
log_info "identity: \"$identity\"\n"

# unzip ipa package
rm -rf Payload
unzip -qq "$ipa"
if [ $? != 0 ]
then
	log_err "fail to unzip ipa file \"$ipa\""
	usage
	exit -2
fi

# use same appid

/usr/libexec/PlistBuddy -c "Print CFBundleIdentifier" Payload/*/Info.plist > AppID

# detect if provision profile exist in ipa package
dstprofile=`find Payload -d 2 -name embedded.mobileprovision`
if [ -z "dstprofile" ]
then
	log_err "provision profile does not exist in ipa package"
	exit -3
fi
log_info "provision profile path in package: \"$dstprofile\""

# in case user specify new provision profile
if [ -z "$profile" ] || [ ! -e "$profile" ]
then
	profile="$dstprofile"
	log_info "use existing embedded.mobileprovision"
else
	cp -f "$profile""$dstprofile"
	log_info "copy \"$profile\" to \"$dstprofile\""
fi
log_info "profile: \"$profile\""

# parse provision profile
rm -rf ProvisionProfile.plist
security cms -D -i "$profile"> ProvisionProfile.plist 2>&1
if [ ! -e ProvisionProfile.plist ]
then
	log_err "fail to parse provision profile"
	exit -4
fi
filecontent=`cat ProvisionProfile.plist`
log_info "\nprovision prifle content: $filecontent\n"

# generate entitilements.plist
if [ -z "$entitlements" ] || [ ! -e "$entitlements" ]
then
	rm -f Entitlements.plist
	/usr/libexec/PlistBuddy -x -c "Print Entitlements" ProvisionProfile.plist > Entitlements.plist 2>&1
	entitlements="Entitlements.plist"
fi
if [ ! -e "$entitlements" ]
then
	log_err "No entitlement file"
	usage
	exit -5
fi
filecontent=`cat "$entitlements"`
log_info "\nentitlement content: $filecontent\n"

# get app id
appid=`cat AppID`

log_info "application-identifier: $appid"

# modify app id
appinfoplist=`find Payload -d 2 -name Info.plist`
if [ -z "$appinfoplist" ]
then
	log_err "Info.plist file does not exist"
	exit -11
fi
/usr/libexec/PlistBuddy -c "Print CFBundleIdentifier""$appinfoplist"> /dev/null 2>&1
if [ $? != 0 ]
then
	log_err "CFBundleIdentifier not exist in Info.plist"
	exit -12
fi
/usr/libexec/PlistBuddy -c "Set CFBundleIdentifier $appid""$appinfoplist"> /dev/null 2>&1

# check identity
if [ -z "$identity" ] 
then
	/usr/libexec/PlistBuddy -c "Print TeamName" ProvisionProfile.plist >/dev/null 2>&1
	if [ $? != 0 ]
	then
		log_err "No TeamName in provision profile"
		exit -13
	fi
	teamname=`/usr/libexec/PlistBuddy -c "Print TeamName" ProvisionProfile.plist`
	identity="iPhone Distribution: $teamname"
fi
if [ -z "$identity" ]
then
	log_err "Does not specify provision profile"
	usage
	exit -14
fi
log_info "identity: \"$identity\""

# get ResourceRules.plist
ResourceRuleFile=`find Payload -d 2 -name ResourceRules.plist`
if [ ! -e "$ResourceRuleFile" ]
then

	log_err "No ResourceRules.plist file. IGNORING!!!"

else

log_info "ResourceRules.plist path: \"$ResourceRuleFile\""

fi

# codesign the app
if [ ! -e "$ResourceRuleFile" ]
then

codesign --force --sign "$identity" --entitlements "$entitlements" Payload/*.app --identifier "$appid"

else

codesign --force --sign "$identity" --resource-rules="$ResourceRuleFile" --entitlements "$entitlements" Payload/*.app --identifier "$appid"

fi

if [ $? != 0 ]
then
	log_err "fail to codesign the app"
	exit -16
fi

#zip the package
if [ -z "$output" ]
then
	output="resigned.ipa"
fi
rm -f "$output"
zip -qyr "$output" Payload
if [ $? != 0 ]
then
	log_err "fail to zip the app"
	exit -17
fi

# clean up

rm -rf AppID
rm -rf Payload
rm -rf ProvisionProfile.plist
rm -rf Entitlements.plist

echo "resign success"