DSS

Network World of June 6, 1994 has a brief article on DSS. In the article it says that "some firms do not appear worried about legal threats fron PKP. AT&T, which sells SecretAgent - software that uses both DSS and RSA signatures - has not obtained a patent for DSS from PKP; neither has Information Security Corp., the Deerfield, Ill. bases company that develops SecretAgent exclusively for AT&T." What do they know that we do not? Makes you wonder about all of PKP's claims. Has PKP ever sued anyone over their patents or have they just threatened? Very curious. Dan Harmon