Re: Elliptic curves, patent status?
At 05:16 PM 11/28/95 -0400, Michael Smith wrote:
I'm unclear about the patent status of elliptic curve systems. Are they covered by the Diffie-Hellman patent? That is, is the lnguage of this patent broad enough to cover _all_ public-key systems, regardless of their mathematical basis?
No, but RSA will litigate you with the objective of inflicting extravagant legal costs regardless. --------------------------------------------------------------------- | We have the right to defend ourselves | http://www.jim.com/jamesd/ and our property, because of the kind | of animals that we are. True law | James A. Donald derives from this right, not from the | arbitrary power of the state. | jamesd@echeque.com
Wei Dai (weidai@eskimo.com) wrote:
On Mon, 27 Nov 1995, James A. Donald wrote:
[are there patents that cover all public key cryptography?]
No, but RSA will litigate you with the objective of inflicting extravagant legal costs regardless.
RSADSI no longer owns the Stanford patents (Hellman-Merkel, Diffie-Hellman) which they used to claim covered all public key cryptography. Those patents now belong to Cylink, who seems to be less litigious.
Especially considering that they might lose the patents in a court case next month.
On Mon, 27 Nov 1995, James A. Donald wrote:
[are there patents that cover all public key cryptography?]
No, but RSA will litigate you with the objective of inflicting extravagant legal costs regardless.
RSADSI no longer owns the Stanford patents (Hellman-Merkel, Diffie-Hellman) which they used to claim covered all public key cryptography. Those patents now belong to Cylink, who seems to be less litigious. Wei Dai
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anon-remailer＠utopia.hacktic.nl -
James A. Donald -
Wei Dai