> From what I could see the Microchip encryption software does *not* includ=
e
> XTEA. Just T-DES and AES-128
>=20

OK, I looked in my copy of the Encryption Library (v2.6, downloaded Dec. 20=
10) and it has XTEA under the 'AN0953 Data Encryption routines for the PIC1=
8' zip folder, but not under the 'AN1044 Routines for the PIC24/dsPic' zip =
folder.

As an aside, in your original post, you mentioned the PIC24E devices, does =
this mean you have actually tried one, or just mentioned it because of the =
potential speed? I ask as I am looking at getting some of these chips, but =
at the moment the Errata & Clarification document for them contains some al=
arming errata.=20

The same errata seem to affect a number of 16 bit chips. One would have tho=
ught they would get the VHDL peripheral modules sorted on discovering the e=
rrors instead of bringing out yet more chips with the same errors. Some of =
the errors do seem to imply that someone was half asleep doing their job as=
 they don't seem to be obscure errors or occur under obscure conditions.



--=20
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--=20
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