[ibis-macro] Minutes for the 23 may 2006 ibis-macro meeting
- From: "Mike LaBonte \(milabont\)" <milabont@xxxxxxxxx>
- To: <ibis-macro@xxxxxxxxxxxxx>
- Date: Wed, 24 May 2006 14:43:06 -0400
Minutes for the 23 may 2006 ibis-macro meeting are attached (really this
time).
ARs:
AR: Bob send summit invitation to John Shields
AR: Mike find/make diagram of key escrow system
Mike
Meeting date: 23 may 2006
Members (asterisk for those attending):
Arpad Muranyi, Intel Corp.
*Bob Ross, Teraspeed Consulting Group
Todd Westerhoff, Cisco Systems
*Mike LaBonte, Cisco Systems
Paul Fernando, NCSU
Barry Katz, SiSoft
Walter Katz, SiSoft
Ken Willis, Cadence Design Systems
*Ian Dodd, Mentor Graphics
Lance Wang, Cadence Design Systems
*Richard Ward, Texas Instruments
Doug White, Cisco Systems
Sanjeev Gupta, Agilent
Joe Abler, IBM
John Shields, Mentor Graphics
-------------
Review of ARs:
- no ARs
-------------
Continuation of encryption discussion
- Accellera IP protection proposal presented by John Shields last week:
- John made some documents public and Bob Ross sent link to list.
- Does encryption cover the AMS extensions of languages?
- With SPICE we usually leave subckt call line out of the encrypted
portion.
- Pure digital models from Mentor had to be protected.
- An issue with AMS is the common practice of allowing "deep inspection"
into certain internals of a model.
- Need to better understand what Accellera is doing
- If they do a good job maybe we don't need to do anything.
- More details on how the envelope/key chain approach works:
- All keys come from model vendors
- The "inner key" is embedded in the envelope file:
- The model is encrypted with this key.
- May be the same key for all models sent out, but probably not.
- Most likely a different key depending on target vendor.
- Might even use a different key for each user.
- The "outer key" sent to simulator vendors:
- The envelope file is encrypted with this key.
- Model vendors choose the simulator vendors they trust.
- Each simulator vendor gets a different key.
- Simulators use this key to decrypt the delivered envelope files.
- The decrypted envelope contains the key needed to decrypt the
embedded model.
- Are model and envelope in separate files?
- Markup language probably used to embed all in one file.
- How to prevent a leaked/cracked encryption key from compromising all models:
- The Blu-ray Disc system maintains a list of keys in the disc player.
- If encryption is compromised, new discs can update the players with
new encryption keys/system.
- Can this approach be extended to SPICE? Matlab?
- Vendors may take a wait-and-see approach.
- How to help this proposal succeed:
- High speed design groups will push for IP protection if IBIS needs it.
- Would like John Shields to present Accellera IP proposal at DAC summit.
- Need a way to explain this system quickly
- A diagram showing model vendor/sim vendor/user and the flow of
information between them would help.
AR: Bob send summit invitation to John Shields
AR: Mike find/make diagram of key escrow system
-------------
Next meeting: Tuesday 30 may 2006 12:00pm PT
Other related posts:
