Re: [Fwd: IEEEE 1364-2005 Encryption draft with consensus changes (fwd)]

From: Shalom Bresticker (Shalom.Bresticker@freescale.com)
Date: Wed Jan 12 2005 - 08:10:10 PST

  • Next message: Shalom Bresticker: "encryption & vpi - sv #345"

    Thanks.

    I guessed that 'rounds' is something like that, but I wonder if it's appropriate
    to put that term into the LRM, even in an informative annex, without any
    explanation or prior mention. I think "IV" should definitely be spelled out. No
    way any one who does not already know it is going to guess that.

    Shalom

    Jay Lawrence wrote:

    > A number of the encryption algorithms can be run repeatedly. For
    > instance you encrypt the text. Then you take the result and run it
    > through the algorithm again to encrypt the result, ... Each one of these
    > is a "round" of encryption. DES III (triple DES) is the most well known
    > of these.
    >
    > The "IV" is the "Initialization Vector". It is a seed for the encryption
    > algorithm. Different IVs will result in different clear text for the
    > same plain text so between the choice of key and IV you get even better
    > protection.
    >
    > Jay
    >
    > ===================================
    > Jay Lawrence
    > Senior Architect
    > Functional Verification
    > Cadence Design Systems, Inc.
    > (978) 262-6294
    > lawrence@cadence.com
    > ===================================
    >
    > >-----Original Message-----
    > >From: owner-btf@boyd.com [mailto:owner-btf@boyd.com] On Behalf
    > >Of Shalom.Bresticker@freescale.com
    > >Sent: Wednesday, January 12, 2005 10:57 AM
    > >To: Steven Dovich
    > >Cc: Neil.Korpusik@sun.com; Stuart Sutherland; 'Fitzpatrick,
    > >Tom'; johny.srouji@intel.com; btf-ip@boyd.com; btf@boyd.com
    > >Subject: Re: [Fwd: IEEEE 1364-2005 Encryption draft with
    > >consensus changes (fwd)]
    > >
    > >Yet another:
    > >
    > >I.1.2.1 and I.1.3.1 say,
    > >
    > >"This may be necessary if something other than the default
    > >number of rounds, IV, or key width is used."
    > >
    > >What are "rounds" and what is "IV"?
    > >
    > >Shalom
    > >
    > >
    > >On Wed, 12 Jan 2005 Shalom.Bresticker@freescale.com wrote:
    > >
    > >> Another question:
    > >>
    > >> In Annex I, at the end of I.1.2.2, there is "viewport.".
    > >>
    > >> According to Clause 28, the syntax of viewport is
    > >>
    > >> viewport=(object=<string>, access=<string>)
    > >>
    > >> So what should appear here in Annex I?
    > >>
    > >> Thanks,
    > >> Shalom
    > >>
    > >>
    > >> On Wed, 12 Jan 2005 Shalom.Bresticker@freescale.com wrote:
    > >>
    > >> > Steve,
    > >> >
    > >> > In addition to the previous question, I have another:
    > >> >
    > >> > In the "pragma_keyword = pragma_value" form,
    > >> >
    > >> > are spaces allowed around the "=" ?
    > >> >
    > >> > Thanks,
    > >> > Shalom
    > >> >
    > >> >
    > >> > On Mon, 10 Jan 2005 Shalom.Bresticker@freescale.com wrote:
    > >> >
    > >> > > Steve,
    > >> > >
    > >> > > I have added to the `pragma syntax:
    > >> > >
    > >> > > "pragma_name ::= identifier"
    > >> > >
    > >> > > Question:
    > >> > >
    > >> > > Both this and
    > >> > >
    > >> > > "pragma_keyword ::= identifier"
    > >> > >
    > >> > > allow use of escaped identifiers.
    > >> > >
    > >> > > Do you want to limit them to simple identifiers?
    > >> > >
    > >> > > Thanks,
    > >> > > Shalom
    > >> > >
    > >> > >
    > >> >
    > >> >
    > >>
    > >>
    > >
    > >--
    > >Shalom Bresticker Shalom.Bresticker
    > >@freescale.com
    > >Design & Verification Methodology Tel: +972
    > >9 9522268
    > >Freescale Semiconductor Israel, Ltd. Fax: +972
    > >9 9522890
    > >POB 2208, Herzlia 46120, ISRAEL Cell: +972
    > >50 5441478
    > >
    > >[ ]Freescale Internal Use Only [ ]Freescale Confidential
    > >Proprietary
    > >
    > > 

    --
Shalom Bresticker                        Shalom.Bresticker @freescale.com
Design & Verification Methodology                    Tel: +972 9  9522268
Freescale Semiconductor Israel, Ltd.                 Fax: +972 9  9522890
POB 2208, Herzlia 46120, ISRAEL                     Cell: +972 50 5441478

    [ ]Freescale Internal Use Only      [ ]Freescale Confidential Proprietary

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