Ken, is your response an "official" Palm response? I'm not sure who
transpac.com is.
LL
At 11:35 AM 10/3/99 -0700, Ken Krugler wrote:
>Laurence,
>
> >I think this has come up before, but I'll ask again.
> >
> >Encrypt.h includes a declaration for EncDigestMD5(). Can we count on having
> >that in all versions of PalmOS? Even if it is only PalmOS 3 and higher it
> >would be help. There is a freely available C implementation of MD5 that
> >compiles to about 3Kb of object code, but I'd like to avoid that extra 3Kb.
>
>EncDigestMD5() was added in Palm OS 2.0, I believe.
>
>On a related topic, while EncDigestMD5() should always be available on 2.0
>or later versions of Palm OS, note that EncDES() (also added in 2.0) is
>conditionally implemented - if you're running on a non-US device, then
>calling that trap generates a "DES Not Supported" fatal alert. To check for
>the presence of this support, you'd need to use FtrGet, as in:
>
>UInt32 attributes;
>Boolean hasDES;
>hasDES = (FtrGet(sysFtrCreator, sysFtrNumEncryption, &attributes) == errNone)
> && ((attributes & 0x01) != 0);
>
> >Also, if this is going to be added or officially supported in the future,
> >it would be nice if the implementation was more along the lines of the
> >freely available one. It allows you to feed data to be hashed in chunks,
> >rather than all at once. This can drastically reduce memory requirements.
>
>I'll pass your note along...
>
>-- Ken
>
>Ken Krugler
>TransPac Software, Inc.
><http://www.transpac.com>
>+1 530-470-9200 (direct) +1 408-261-7550 (main)
>
