×

Personal security manager for ubiquitous patient monitoring

  • US 9,094,383 B2
  • Filed: 06/10/2009
  • Issued: 07/28/2015
  • Est. Priority Date: 06/18/2008
  • Status: Active Grant
First Claim
Patent Images

1. A secure end-to-end patient healthcare system comprising:

  • at least two wireless medical sensors adapted to be attached to a patient'"'"'s body and in communication with each other forming a body sensor network within a wireless medical sensor network including one or more body sensor networks, the at least two wireless medical sensors including a first and a second wireless medical sensor;

    a memory configured to store λ

    -secure key material, the memory incorporated into each of said wireless medical sensors for enabling secure communications between said wireless medical sensors;

    a personal security manager within the body sensor network and in communication with said one or more wireless medical sensors within said body sensor network, said personal security manager providing secure communications with backend services and providing security relationships within said body sensor network by use of said λ

    -secure key material, wherein said λ

    -secure key material ensures that a coalition of less than λ

    compromised wireless medical sensors cannot calculate a pairwise key between any two non-compromised wireless medical sensors and the λ

    -secure key material provides protection against wireless medical sensor compromise until λ

    +1 wireless medical sensors have been compromised, the λ

    -secure key material being generated by evaluating a bivariate polynomial of degree λ

    ; and

    a healthcare card plugged into the personal security manager, wherein the healthcare card includes identification information and security information for secure communication with the backend healthcare services, wherein the personal security manager includes a certificate issued by a local trust center, and wherein the system is adapted to execute a security protocol for auditing and/or access control and/or privacy protection, and/or mutual authentication of the personal security manager with the healthcare cardwherein the first wireless medical sensor generates a pairwise key based on the λ

    -secure key material , encrypts a message using the pairwise key, and sends the encrypted message to the second wireless medical sensor which decrypts the message using the pairwise key.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×