Warning: iconv_mime_decode() [function.iconv-mime-decode]: Malformed string in /home/secureg/public_html/lib/standard.lib.php on line 2251

Warning: iconv_mime_decode() [function.iconv-mime-decode]: Malformed string in /home/secureg/public_html/lib/standard.lib.php on line 2251
Digitally signing GIFs, JPEGs, etc.
Digitally signing GIFs, JPEGs, etc.

Digitally signing GIFs, JPEGs, etc.

Secure Home | Search | About
 Microsoft Applications Security    Post an article   get this group's latest topics as an RSS feed add this group's latest topics to your My MSN content add this group's latest topics to your My Yahoo content add this group's latest topics to your Google content
Subject Author Date
Digitally signing GIFs, JPEGs, etc. JJ 10-29-2007
Posted by =?Utf-8?B?Sko=?= on October 29, 2007, 12:22 pm
If you were  Registered and logged in, you could reply and use other advanced thread options
Everyone know that images embedded in Web pages can contain exploits of all
kinds. Why doesn't Microsoft and other vendors make it possible to digitally
sign images created using their tools just like it's possible to sign a .NET
assembly?

Or is this already available? I don't know since I'm just a developer. I use
images created by Web designers.

JJ

Posted by CanSpam on November 8, 2007, 7:46 am
If you were  Registered and logged in, you could reply and use other advanced thread options
Signing assumes trust to certificates.
Trust assumes "you are not to be trusted if you say you are who you =
are", e.g. someone else (with Reputation) has to sign on it. And those =
companies don't do it for free since they are required to check you =
(Verisign, Thawte, etc... just look into your Trusted Root CA). And they =
put their reputation in their assertion that you and the name in your =
certificate really match.
Signing would mean a split fee for a signed image (in the form of a =
yearly subscription to a service of a Certificate Authority), paid by =
author.
So we (in fact, Microsoft) are better off eliminating exploits in DLLs.
Do I make myself clear?

> Everyone know that images embedded in Web pages can contain exploits =
of all=20
> kinds. Why doesn't Microsoft and other vendors make it possible to =
digitally=20
> sign images created using their tools just like it's possible to sign =
a .NET=20
> assembly?
>=20
> Or is this already available? I don't know since I'm just a developer. =
I use=20
> images created by Web designers.
>=20
> JJ

Posted by =?Utf-8?B?Sko=?= on November 8, 2007, 6:08 pm
If you were  Registered and logged in, you could reply and use other advanced thread options
Yep. The author has to pay for it. What's the problem with that? How come
you, Microsoft, as you've made clear, is protecting the interest of those who
author all of a sudden?

You just don't want to introduce technologies that would really make a
difference in security. Your products are reactive to what the media and
other true security researchers discover as vulnerabilities. You don't have a
proactive strategy for security in your products.

Do I make myself clear?


"CanSpam" wrote:

> Signing assumes trust to certificates.
> Trust assumes "you are not to be trusted if you say you are who you are", e.g.
someone else (with Reputation) has to sign on it. And those companies don't do
it for free since they are required to check you (Verisign, Thawte, etc... just
look into your Trusted Root CA). And they put their reputation in their
assertion that you and the name in your certificate really match.

> Signing would mean a split fee for a signed image (in the form of a yearly
subscription to a service of a Certificate Authority), paid by author.
> So we (in fact, Microsoft) are better off eliminating exploits in DLLs.
> Do I make myself clear?
>
> > Everyone know that images embedded in Web pages can contain exploits of all
> > kinds. Why doesn't Microsoft and other vendors make it possible to digitally
> > sign images created using their tools just like it's possible to sign a .NET
> > assembly?
> >
> > Or is this already available? I don't know since I'm just a developer. I use
> > images created by Web designers.
> >
> > JJ
>

Posted by =?Utf-8?B?Sko=?= on November 8, 2007, 6:10 pm
If you were  Registered and logged in, you could reply and use other advanced thread options
What kind of theory says "you are not to be trusted if you say you are who
you are" ?
Haven't you heard of biometric authentication? Biometric authentication,
done right, would determine that you are who you say you are.

JJ

"CanSpam" wrote:

> Signing assumes trust to certificates.
> Trust assumes "you are not to be trusted if you say you are who you are", e.g.
someone else (with Reputation) has to sign on it. And those companies don't do
it for free since they are required to check you (Verisign, Thawte, etc... just
look into your Trusted Root CA). And they put their reputation in their
assertion that you and the name in your certificate really match.

> Signing would mean a split fee for a signed image (in the form of a yearly
subscription to a service of a Certificate Authority), paid by author.
> So we (in fact, Microsoft) are better off eliminating exploits in DLLs.
> Do I make myself clear?
>
> > Everyone know that images embedded in Web pages can contain exploits of all
> > kinds. Why doesn't Microsoft and other vendors make it possible to digitally
> > sign images created using their tools just like it's possible to sign a .NET
> > assembly?
> >
> > Or is this already available? I don't know since I'm just a developer. I use
> > images created by Web designers.
> >
> > JJ
>

Similar ThreadsPosted
How can digitally signed executable be "secure" ? May 24, 2006, 3:55 pm
Digitally sign MS Office files October 19, 2006, 5:30 am
Digitally sign MS Office files October 19, 2006, 5:30 am
Digitally sign MS Office files October 19, 2006, 5:30 am
Why are programs not digitally signed to protect against viruses? June 28, 2005, 1:58 pm
Deploying patches that work with digitally signed .NET assemblies November 29, 2005, 6:27 pm
signing in June 21, 2005, 9:43 am
RE: Hotmail signing out July 26, 2005, 12:20 am
someone else is signing in on my email August 3, 2005, 10:14 pm
Hotmail Signing out December 1, 2005, 8:19 pm

The site map in XML format XML site map

Contact Us | Privacy Policy