US6292892B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for providing secured communications
Assignee: Intel Corp
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Filing: 2000-03-15
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Granted: 2001-09-18
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Expires: 2020-03-15
Abstract
Abstract In one embodiment, a method to provide reliable electronic distribution of information between a first system and a second system remotely located from the first system coupled together by a communication link. The method comprises storing a public key, a private key, and signed key parameters in a semiconductor device associated with the first system. The signed key parameters are output from the semiconductor device to the second system via the communication link. Then, the first system is authenticated by the second system; and the information is transmitted from the second system to the first system, provided the first system is authenticated.
Inventors
- 👤 Derek L. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:38
CPC Classifications
H; H04; H04L; H04L9/00; H04L9/32; H04L9/3271; H04L9/08; H04L9/0816; H04L9/0819; H04L9/083; H04L9/3263
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
113 words
A method for ensuring secured communications between a system employing a hardware agent and a remote system, the method comprising: establishing a communication link between the hardware agent and the remote system; transmitting a message from the remote system to the system; outputting a unique digital certificate from the system to the remote system; returning a response to the message, the response encrypted with a private key associated with the hardware agent; decrypting the digital certificate to obtain a public key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the remote system.
Claim 2
Independent Claim
113 words
A method for ensuring secured communications between a system employing a hardware agent and a remote system, the method comprising: establishing a communication link between the hardware agent and the remote system; transmitting a message from the remote system to the system; outputting a unique digital certificate from the system to the remote system; returning a response to the message, the response encrypted with a private key associated with the hardware agent; decrypting the digital certificate to obtain a public key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the remote system.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein the unique digital certificate comprises a device certificate.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the digital certificate comprises a second level certificate.
Claim 5
Dependent Claim
27 words
The method of claim 1 wherein the method further comprises terminating communications if the response received from the system differs from that expected by the remote system.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein the message includes a random data sequence.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein the method further includes transmission of additional key data between the system and the remote system.
Claim 8
Independent Claim
113 words
A method for ensuring secured communications between a system employing a hardware agent and a remote system, the method comprising: establishing a communication link between the hardware agent and the remote system; outputting a unique digital certificate from the system to the remote system; decrypting the digital certificate to obtain a public key associated with the hardware agent; transmitting a message from the remote system to the system; returning a response to the message, the response encrypted with a private key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the remote system.
Claim 9
Independent Claim
113 words
A method for ensuring secured communications between a system employing a hardware agent and a remote system, the method comprising: establishing a communication link between the hardware agent and the remote system; outputting a unique digital certificate from the system to the remote system; decrypting the digital certificate to obtain a public key associated with the hardware agent; transmitting a message from the remote system to the system; returning a response to the message, the response encrypted with a private key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the remote system.
Claim 10
Dependent Claim
14 words
The method of claim 7 wherein the unique digital certificate comprises a device certificate.
Claim 11
Dependent Claim
15 words
The method of claim 7 wherein the unique digital certificate comprises a second level certificate.
Claim 12
Dependent Claim
27 words
The method of claim 7 wherein the method further comprises terminating communications if the response received from the system differs from that expected by the remote system.
Claim 13
Dependent Claim
13 words
The method of claim 7 wherein the message includes a random data sequence.
Claim 14
Dependent Claim
22 words
The method of claim 7 wherein the method further includes transmission of additional key data between the system and the remote system.
Claim 15
Independent Claim
95 words
A method to provide reliable electronic distribution of information between a first system and a second system remotely located from the first system coupled together by a communication link, the method comprising: storing a public key, a private key, and signed key parameters in a semiconductor device associated with the first system; outputting the signed key parameters from the semiconductor device to the second system via the communication link; authenticating the first system by the second system; and transmitting the information from the second system to the first system provided the first system is authenticated.
Claim 16
Independent Claim
95 words
A method to provide reliable electronic distribution of information between a first system and a second system remotely located from the first system coupled together by a communication link, the method comprising: storing a public key, a private key, and signed key parameters in a semiconductor device associated with the first system; outputting the signed key parameters from the semiconductor device to the second system via the communication link; authenticating the first system by the second system; and transmitting the information from the second system to the first system provided the first system is authenticated.
Claim 17
Dependent Claim
15 words
The method of claim 13 wherein the signed key parameters comprise a unique digital certificate.
Claim 18
Dependent Claim
13 words
The method of claim 14 wherein the digital certificate comprises a device certificate.
Claim 19
Dependent Claim
14 words
The method of claim 14 wherein the digital certificate comprises a second level certificate.
Claim 20
Dependent Claim
22 words
The method of claim 13 wherein the method further comprises transmitting of additional key data between the system and the remote system.
Claim 21
Dependent Claim
16 words
The method of claim 13 wherein the signed key parameters are signed with the private key.
Claim 22
Dependent Claim
15 words
The method of claim 18 wherein the signed key parameters comprise a unique digital certificate.
Claim 23
Dependent Claim
14 words
The method of claim 19 wherein the unique digital certificate comprises a device certificate.
Claim 24
Dependent Claim
14 words
The method of claim 19 wherein the digital certificate comprises a second level certificate.
Claim 25
Independent Claim
109 words
A method comprising: establishing a communication link between a first system employing a hardware agent and a second system remotely located from the first system; receiving a unique digital certificate from the first system by the second system; recovering a public key associated with the hardware agent from the unique digital certificate; outputting a message from the second system to the first system; receiving a response to the message, the response being encrypted with a private key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the second system.
Claim 26
Independent Claim
109 words
A method comprising: establishing a communication link between a first system employing a hardware agent and a second system remotely located from the first system; receiving a unique digital certificate from the first system by the second system; recovering a public key associated with the hardware agent from the unique digital certificate; outputting a message from the second system to the first system; receiving a response to the message, the response being encrypted with a private key associated with the hardware agent; decrypting the response with the public key associated with the hardware agent; and maintaining communications if the response is identical to that expected by the second system.
Claim 27
Dependent Claim
14 words
The method of claim 22 wherein the unique digital certificate comprises a device certificate.
Claim 28
Dependent Claim
15 words
The method of claim 22 wherein the unique digital certificate comprises a second level certificate.
Claim 29
Dependent Claim
25 words
The method of claim 22 further comprising terminating communications if the response received from the first system differs from that expected by the second system.
Claim 30
Dependent Claim
13 words
The method of claim 22 wherein the message includes a random data sequence.
Claim 31
Dependent Claim
19 words
The method of claim 22 further comprising transmitting additional key data between the first system and the second system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-17 | 2005-03-19 | 2005-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-17 | 2009-03-19 | 2009-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-17 | 2013-03-19 | 2013-09-18 | $7700.00 | Window Closed / Lapsed |