STS was originally presented in 1987 in the context of ISDN security , finalized in 1989 and generally presented by Whitfield Diffie , Paul C. van Oorschot and Michael J. Wiener in 1992 .
STS was originally presented in 1987 in the context of ISDN security ( O'Higgins and others 1987 ) , finalized in 1989 and generally presented by Whitfield Diffie , Paul C. van Oorschot and Michael J. Wiener in 1992 .