SB10 Tips & Tricks #1: Dual SHA-1/SHA-2 code-signing
-- SB10 Tips & Tricks #1: Dual SHA-1/SHA-2 code-signing
It has been some time since we've had the "Tips & Tricks" column. Many
people have asked me for tips on how to do this and that, so I figured I
would share some with you here. The first in this new series of tips and
tricks explains how you can handle dual SHA-1/SHA-2 (SHA-256) code-signing
with SetupBuilder.
Background: Organizations need to develop a migration plan for SHA-1 code
signing certificates that expire after January 1, 2016. To support older
Windows operating systems (e.g. Windows XP, Vista, early Windows 7 versions)
and modern Windows systems (Windows 8.x and later) after 1 January 2016, you
have to dual SHA-1/SHA-2 code-sign all your application files and setups
using Microsoft Authenticode compatible time stamp and RFC 3161 compliant
trusted time stamp servers (SHA-2 compatible code-signing certificate is
required).
SHA-2 (SHA-256) was created by the National Institute of Standards and
Technology (NIST) to replace SHA-1 after mathematical weaknesses were
discovered in the algorithm. For the past few years, network security
experts have warned that certificates using the SHA-1 hashing algorithm will
soon be in danger of being hacked due to consistent advancements in
computing technology.
-- How to handle dual code-signing with SetupBuilder 10?
1. Set the "TimeStamp URL" to a SHA-2 compliant timestamp server.
For example: http://timestamp.globalsign.com/?signature=sha2
2. In the Script Editor, set the Secure Hash Algorithm to "dual".
#pragma CODESIGN_SHA = "12"
3. In the Script Editor, set the timestamp server for the SHA-1 signature to
a Microsoft Authenticode compatible timestamp server.
#pragma CODESIGN_TSSHA1URL = "http://timestamp.comodoca.com/authenticode"
Note: You need Microsoft SignTool.exe version 6.2.9200.16384 or later to
support dual SHA-1/SHA-2 code-signing.
--
Friedrich Linder
Lindersoft | SetupBuilder | www.lindersoft.com
954.252.3910 (within US) | +1.954.252.3910 (outside US)
--SetupBuilder "point. click. ship"
--Helping You Build Better Installations
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--Official COMODO Code Signing and SSL Certificate Partner
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