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

From: Jay Lawrence (lawrence@cadence.com)
Date: Wed Jan 12 2005 - 08:06:40 PST

  • Next message: Shalom Bresticker: "Re: [Fwd: IEEEE 1364-2005 Encryption draft with consensus changes (fwd)]"

    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
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    >
    >

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