Methods of operating a portable communications device with enhanced security
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United States of America Patent
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Sep 27, 2011
Grant Date -
Jan 17, 2008
app pub date -
Jul 11, 2007
filing date -
Jul 30, 1996
priority date (Note) -
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Abstract
Methods of operating a portable communications device so as to provide communications security and user identification and authentication. In one embodiment, the method comprises placing the device in communication with an untrusted network, and using its security apparatus for creating associations with one or more security devices on the network. Traffic between the associated devices may be encrypted and protected for e.g., data confidentiality and integrity protection. In one variant, the security apparatus comprises a software entity disposed at least partly within the software stack of a host, and a removable security card. The portable device may be untrusted (e.g., have an untrusted operating system) and also be physically unsecure.
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