Computer security system

• US 5,881,226 A
• Filed: 10/28/1996
• Issued: 03/09/1999
• Est. Priority Date: 10/28/1996
• Status: Expired due to Term

• Current Assignee: Callahan Cellular LLC (Intellectual Ventures LLC)
• Original Assignee: Comprotect, Inc.
• Inventors: Veneklase, Brian J.
• Primary Examiner(s): Beausoliel, Jr., Robert W.
• Assistant Examiner(s): Elmore, Stephen C.
• Application Number:
  US08/738,897
• Time in Patent Office: 862 Days
• Field of Search: 395/188.01, 395/186, 380/3, 380/4, 380/23, 380/25, 380/42, 711/164, 370/505, 370/506
• US Class Current: 726/16
• CPC Class Codes: G06F 21/42 using separate channels for security data
• CPC Class Codes: G06F 21/43 wireless channels
• CPC Class Codes: H04L 63/083 using passwords cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226
• CPC Class Codes: H04L 63/104 Grouping of entities
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215

Abstract

Several embodiments of computer security systems are described and which are adapted to grant an authorized individual access to a secured domain, such as a computer or data stream. In one embodiment, the security system comprises: an analyzing means for receiving first and second passwords, each of said passwords being transmitted over a first communication channel, analyzing said first password, transmitting a first signal output only if said first password is authorized, and granting access to said secured domain only if said second password is substantially identical to a code; and a random code generating means for generating said code, transmitting said code over a second communication channel upon receipt of first signal output, and transmitting said code to said analyzing means; and a notification means for receiving said code and for notifying said authorized individual of the identity of said code.

Claims

1. A method to securely transmit data having a plurality of bits, said method comprising the steps of:

interspersing a plurality of filler data bits into said data in a certain random pattern;

transmitting said data and said interspersed filler data;

receiving said data and said interspersed filler data; and

discarding said interspersed filler data.

2. A method to securely transmit data having a plurality of bits, said method comprising the steps of:

interspersing a plurality of filler data bits into said data in a certain varying pattern;

transmitting said data and said interspersed filler data;

receiving said data and said interspersed filler data; and

discarding said interspersed filler data.

3. A method to securely transmit data having a plurality of bits, said method comprising the steps of:

interspersing a plurality of filler data bits into said data in a certain pattern;

periodically varying said certain pattern of said filler data bits;

transmitting said data and said interspersed filler data;

receiving said data and said interspersed filler data; and

discarding said interspersed filler data.