Submitted on: 18 September 2019.
Revised on: 07 January 2020.
Accepted on: 19 February 2020.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC
Submitted on: 03 July 2015.
Revised on: 24 September 2015.
Accepted on: 08 November 2015.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC
Submitted on: 24 August 2000.
Revised on: 27 November 2000.
Accepted on: 15 December 2000.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC
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Submitted on: 15 May 2018.
Revised on: 16 June 2018.
Accepted on: 26 June 2018.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC
Submitted on: 01 November 2009.
Revised on: 31 December 2009.
Accepted on: 13 February 2010.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC
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Submitted on: 07 April 2012.
Revised on: 22 June 2012.
Accepted on: 11 July 2012.
___________________IEEE SECURITY & PRIVACY---IEEE COMPUTER SOC