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To: caly who wrote (81)	1/15/2000 12:58:00 AM
From: Eric L	Respond to of 343

calypso, << Why then are SIMs using RSA instead of ECC??? Do you have any insight on this? >> I think so. I'll comment back on this and a few of your other questions after I've gotten some sleep, but before I forget one thought I'd better post it so I don't forget it (old weak mind). SIMs have never used RSA (until right now.) From day one (1992) GSM SIMs have relied on shared private keys to authenticate to a network and will continue to do so. RSA and PKI is being introduced and dictated by a mobile handset being used for e-commerce and authentication to a server other than the network. Its just started to appear in SIMs. - Eric -

To: caly who wrote (81)	1/16/2000 10:19:00 AM
From: Eric L	Read Replies (1) \| Respond to of 343

calypso, << The RSA patent expires 9/20/2000 from what I remember >> Dave Horne posted a recent article from Boardwatch Magazine called "TWINKLE, TWINKLE, LITTLE PRIME" on the RSAS thread about the expiration of the RSA patent: 127.0.0.1:3456/SI/~wsapi/investor/reply-12580611 "That's why it's such good news that the patent on the RSA (Rivest-Shamir-Adelson) public key cryptography algorithm is due to expire shortly" The article does not deal with the issue of the effect of this on the revenue stream for RSA Security Inc. (RSAS) except to say: "anyone will shortly be able to sell a program using this time-tested and apparently strong algorithm without paying a licensing fee to RSA Laboratories, the inventors' company" I've begun the process of digging back through posts on the RSAS thread and its predecessor SDTI thread (fortunately they are not to voluminous) to see if there has been any discussion of this issue, but I've had them bookmarked for quite a while and I do not specifically recall any discussion of this. - Eric -