[A83] Re: Free App signing key
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[A83] Re: Free App signing key
>
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> >> >As far as I figured out:
> >> >
> >> >If an application is not signed, it will not work.
> >> >
> >> >Signing is taking an MD5 checksum from the application, and encrypting
> it
> >> with
> >> >a private key, in sucha a way, you need one key to encrypt and another
> to
> >> >decrypt (RSA. [The decryption key is a derivate from the encryption in
> >> >signing, in real encryption, it's the other way around])
> >> >
> >> >The encrypted checksum (signature) is then pasted in after the program
> >> file,
> >> >and your app is signed.
> >> >
> >> >Hope it was clear.
> >>
> >> Yes, very much!
> >>
> >> But is this right: TI made you need a checksum and let you pay for it,
> but
> >> now makes it free?
> >
> >No, correct statement would be:
> >Ti made you to have them encrypt your checksum, for a price, but now
> they've
> >released their private key, so you can do it yourself.
>
> So, before now, you had to use an un-encrypted-checksum?
Well, the signing process involves signing an MD5 checksum.
While the MD5 checksum has value if it is encrypted, it has no value
for applications and programs on itself.
(Everyone can make such a checksum BTW...)
So: before this you had to pay TI to sign your programs, but now it's free
Hope this was clear now :-)
--Peter Martijn
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