Just to let you know I am planning on doing a series at my blog on thoughts regarding key management of a secure telephony system. My overall thoughts are to h

Just to let you know I am planning on doing a series at my blog on thoughts regarding key management of a secure telephony system. My overall thoughts are to have a very tightly controlled key change policy so that a wiretap is only possible where either a customer's certificate authority's key has been compromised (custoemrs would be expected to run their own CA's) or where new calls were being established between parties that had not called eachother before. An interesting property of the system I am thinking about is that when a wiretap would end the next call to a previously evesdropped target would generate a warning.