US5572193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for authentication and protection of subscribers in telecommunications systems
Assignee: Motorola Mobility LLC
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Filing: 1994-08-22
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Granted: 1996-11-05
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Expires: 2014-08-22
Abstract
Abstract A method and apparatus for authentication between a subscriber unit and a communication unit is provided. The authentication process includes: maintaining an historic non-arbitrary value in the subscriber unit, generating an authentication message in the subscriber unit as a function of at least part of the historic non-arbitrary value, and transmitting the authentication message to the communication unit. In addition, the authentication process includes: receiving an authentication message at a communication unit, maintaining an historic non-arbitrary value in the communication unit, and determining, in the communication unit, through the use of the received authentication message and the maintained historic non-arbitrary value, whether a received service request is authentic. In another embodiment, the authentication process includes: providing the subscriber unit with at least part of a plurality of dialed digits which uniquely identify a target communication unit, generating an authentication message in the subscriber unit as a function of the at least part of the plurality of dialed digits, and transmitting the authentication message and the at least part of the plurality of dialed digits from the subscriber unit to the communication unit. In addition the other embodiment authentication process includes: receiving an authentication message and at least part of a plurality of dialed digits which uniquely identifies a target communication unit, the authentication message being derived from the received dialed digits, and determining in the communication unit, through the use of the received authentication message and the received dialed digits, whether a received service request is authentic.
Inventors
- 👤 Mary B. Flanders
- 👤 Louis D. Finkelstein
- 👤 Larry C. Puhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:22
CPC Classifications
H; H04; H04W; H04W12/00; H04W12/06; H04L; H04L9/00; H04L9/32; H04L9/3226; H04W12/02; H04W12/60; H04W12/69; H04W12/72; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5027; Y10T70/5031
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
67 words
A communication unit which authenticates communications with a subscriber unit of a communication system, comprising: (a) receiver means for receiving an authentication message; (b) memory means for maintaining a non-arbitrary value which is a count of occurrences of a communication event; and (c) processor means for determining, through the use of the received authentication message and the maintained non-arbitrary value, whether a received service request is authentic.
Claim 2
Dependent Claim
67 words
A communication unit which authenticates communications with a subscriber unit of a communication system, comprising: (a) receiver means for receiving an authentication message; (b) memory means for maintaining a non-arbitrary value which is a count of occurrences of a communication event; and (c) processor means for determining, through the use of the received authentication message and the maintained non-arbitrary value, whether a received service request is authentic.
Claim 3
Dependent Claim
67 words
The communication unit of claim 1 wherein the non-arbitrary value comprises a record of pseudo random communication events associated with the subscriber unit selected from the group consisting essentially of the number of telephone calls attributed to the subscriber unit, the number of channel handoffs attributed to the subscriber unit, a frame count assigned to the subscriber unit, and a slot count assigned to the subscriber unit.
Claim 4
Dependent Claim
88 words
A subscriber unit which communicates with an intermediate communication unit of a communication system for authenticating the subscriber unit, comprising: (a) input means for obtaining at least part of a plurality of dialed digits which uniquely identifies a target communication unit; (b) processor means for generating an authentication message as a function of the at least part of the plurality of dialed digits; and (c) transmitter means for transmitting the authentication message and the at least part of the plurality of dialed digits to the intermediate communication unit.
Claim 5
Dependent Claim
88 words
A subscriber unit which communicates with an intermediate communication unit of a communication system for authenticating the subscriber unit, comprising: (a) input means for obtaining at least part of a plurality of dialed digits which uniquely identifies a target communication unit; (b) processor means for generating an authentication message as a function of the at least part of the plurality of dialed digits; and (c) transmitter means for transmitting the authentication message and the at least part of the plurality of dialed digits to the intermediate communication unit.
Claim 6
Dependent Claim
37 words
The subscriber unit of claim 3: (a) further comprising memory means for providing an identification number; and (b) wherein the processor means comprises means for generating the authentication message further as a function of the identification number.
Claim 7
Dependent Claim
30 words
The subscriber unit of claim 3 wherein the processor means composes means for generating the authentication message further as a function of a random number known to the subscriber unit.
Claim 8
Dependent Claim
42 words
The subscriber unit of claim 3 wherein the transmitter means transmits the authentication message during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 9
Dependent Claim
88 words
A subscriber unit which communicates with an intermediate communication unit of a communication system for authenticating the subscriber unit, comprising: (a) input means for obtaining at least part of a plurality of information bits which uniquely identifies a target communication unit; (b) processor means for generating an authentication message as a function of the at least part of the plurality of information bits; and (c) transmitter means for transmitting the authentication message and the at least part of the plurality of information bits to the intermediate communication unit.
Claim 10
Dependent Claim
88 words
A subscriber unit which communicates with an intermediate communication unit of a communication system for authenticating the subscriber unit, comprising: (a) input means for obtaining at least part of a plurality of information bits which uniquely identifies a target communication unit; (b) processor means for generating an authentication message as a function of the at least part of the plurality of information bits; and (c) transmitter means for transmitting the authentication message and the at least part of the plurality of information bits to the intermediate communication unit.
Claim 11
Dependent Claim
37 words
The subscriber unit of claim 7: (a) further comprising memory means for providing an identification number; and (b) wherein the processor means comprises means for generating the authentication message further as a function of the identification number.
Claim 12
Dependent Claim
30 words
The subscriber unit of claim 7 wherein the processor means comprises means for generating the authentication message further as a function of a random number known to the subscriber unit.
Claim 13
Dependent Claim
42 words
The subscriber unit of claim 7 wherein the transmitter means transmits the authentication message during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 14
Dependent Claim
75 words
An intermediate communication unit which authenticates a subscriber unit of a communication system, comprising: (a) receiver means for receiving an authentication message and at least part of a plurality of information bits which uniquely identify a target communication unit, the authentication message being derived from the received information bits; and (b) processor means for determining, through the use of the received authentication message and the received information bits, whether a received service request is authentic.
Claim 15
Dependent Claim
75 words
An intermediate communication unit which authenticates a subscriber unit of a communication system, comprising: (a) receiver means for receiving an authentication message and at least part of a plurality of information bits which uniquely identify a target communication unit, the authentication message being derived from the received information bits; and (b) processor means for determining, through the use of the received authentication message and the received information bits, whether a received service request is authentic.
Claim 16
Dependent Claim
42 words
The intermediate communication unit of claim 11: (a) further comprising memory means for providing information regarding an identification number; and (b) wherein the processor means for determining whether the received service request is authentic further utilizes the information regarding the identification number.
Claim 17
Dependent Claim
25 words
The intermediate communication unit of claim 11 wherein the received authentication message is further derived from a random number known to the intermediate communication unit.
Claim 18
Dependent Claim
43 words
The intermediate communication unit of claim 11 wherein the receiver means receives the authentication message during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 19
Dependent Claim
79 words
The intermediate communication unit of claim 11 wherein the processor means further comprises: (a) means for granting communication between the subscriber unit and the target communication unit uniquely identified by the received information bits, if the received authentication message was substantially derived from the received information bits; and (b) means for providing output indicating that a multiple user is attempting to access the communication system, if the received authentication message was not substantially derived from the received information bits.
Claim 20
Independent Claim
66 words
A method of authentication between a subscriber unit and a communication unit of a communication system, comprising: (a) maintaining a non-arbitrary value which is a count of occurrences of a communication event in the subscriber unit; (b) generating an authentication message in the subscriber unit as a function of at least part of the non-arbitrary value; and (c) transmitting the authentication message to the communication unit.
Claim 21
Independent Claim
66 words
A method of authentication between a subscriber unit and a communication unit of a communication system, comprising: (a) maintaining a non-arbitrary value which is a count of occurrences of a communication event in the subscriber unit; (b) generating an authentication message in the subscriber unit as a function of at least part of the non-arbitrary value; and (c) transmitting the authentication message to the communication unit.
Claim 22
Dependent Claim
66 words
The method of claim 16 wherein the non-arbitrary value comprises a record of pseudo random communication events associated with the subscriber unit selected from the group consisting essentially of the number of telephone calls attributed to the subscriber unit, the number of channel handoffs attributed to the subscriber unit, a frame count assigned to the subscriber unit, and a slot count assigned to the subscriber unit.
Claim 23
Independent Claim
72 words
A method of authentication between a subscriber unit and a communication unit of a communication system, comprising: (a) receiving an authentication message at the communication unit; (b) maintaining a non-arbitrary value which is a count of occurrences of a communication event in the communication unit; and (c) determining in the communication unit, through the use of the received authentication message and the maintained non-arbitrary value, whether a received service request is authentic.
Claim 24
Independent Claim
72 words
A method of authentication between a subscriber unit and a communication unit of a communication system, comprising: (a) receiving an authentication message at the communication unit; (b) maintaining a non-arbitrary value which is a count of occurrences of a communication event in the communication unit; and (c) determining in the communication unit, through the use of the received authentication message and the maintained non-arbitrary value, whether a received service request is authentic.
Claim 25
Dependent Claim
66 words
The method of claim 18 wherein the non-arbitrary value comprises a record of pseudo random communication events associated with the subscriber unit selected from the group consisting essentially of the number of telephone calls attributed to the subscriber unit, the number of channel handoffs attributed to the subscriber unit, a frame count assigned to the subscriber unit, and a slot count assigned to the subscriber unit.
Claim 26
Independent Claim
80 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) providing the subscriber unit with at least part of a plurality of digits which uniquely identify a target communication unit; (b) generating an authentication message in the subscriber unit as a function of the at least part of the plurality of digits; and (c) transmitting the authentication message and the at least part of the plurality of digits from the subscriber unit to an intermediate communication unit.
Claim 27
Independent Claim
80 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) providing the subscriber unit with at least part of a plurality of digits which uniquely identify a target communication unit; (b) generating an authentication message in the subscriber unit as a function of the at least part of the plurality of digits; and (c) transmitting the authentication message and the at least part of the plurality of digits from the subscriber unit to an intermediate communication unit.
Claim 28
Dependent Claim
35 words
The method of claim 20 wherein: (a) the subscriber unit is provided with an identification number; and (b) the authentication message is generated in the subscriber unit further as a function of the identification number.
Claim 29
Dependent Claim
28 words
The method of claim 20 wherein the authentication message is generated in the subscriber unit further as a function of a random number known to the subscriber unit.
Claim 30
Dependent Claim
39 words
The method of claim 20 wherein the authentication message is transmitted during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 31
Independent Claim
74 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) receiving in an intermediate communication unit an authentication message and at least part of a plurality of digits which uniquely identifies a target communication unit, the authentication message being derived from the received digits; and (b) determining in the intermediate communication unit, through the use of the received authentication message and the received digits, whether a received service request is authentic.
Claim 32
Independent Claim
74 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) receiving in an intermediate communication unit an authentication message and at least part of a plurality of digits which uniquely identifies a target communication unit, the authentication message being derived from the received digits; and (b) determining in the intermediate communication unit, through the use of the received authentication message and the received digits, whether a received service request is authentic.
Claim 33
Dependent Claim
48 words
The method of claim 24 wherein: (a) the intermediate communication unit is provided with information regarding an identification number; and (b) the determination in the intermediate communication unit of whether a received service request is authentic further occurs through the use of the information regarding the identification number.
Claim 34
Dependent Claim
22 words
The method of claim 24 wherein the authentication message is further derived from a random number known to the intermediate communication unit.
Claim 35
Dependent Claim
39 words
The method of claim 24 wherein the authentication message is received during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 36
Dependent Claim
73 words
The method of claim 24 wherein the step of determining further comprises: (a) granting communication between the subscriber unit and the target communication unit uniquely identified by the received dialed digits, if the received authentication message was substantially derived from the received dialed digits; and (b) providing output indicating thin a multiple user is attempting to access the communication system, if the received authentication message was not substantially derived from the received digits.
Claim 37
Independent Claim
82 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) providing the subscriber unit with at least part of a plurality of information bits which uniquely identify a target communication unit; (b) generating an authentication message in the subscriber unit as a function of the at least part of the plurality of information bits; and (c) transmitting the authentication message and the at least part of the plurality of information bits from the subscriber unit to the communication system.
Claim 38
Independent Claim
82 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) providing the subscriber unit with at least part of a plurality of information bits which uniquely identify a target communication unit; (b) generating an authentication message in the subscriber unit as a function of the at least part of the plurality of information bits; and (c) transmitting the authentication message and the at least part of the plurality of information bits from the subscriber unit to the communication system.
Claim 39
Dependent Claim
35 words
The method of claim 29 wherein: (a) the subscriber unit is provided with an identification number; and (b) the authentication message is generated in the subscriber unit further as a function of the identification number.
Claim 40
Dependent Claim
28 words
The method of claim 29 wherein the authentication message is generated in the subscriber unit further as a function of a random number known to the subscriber unit.
Claim 41
Dependent Claim
39 words
The method of claim 29 wherein the authentication message is transmitted during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 42
Independent Claim
84 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) receiving in an intermediate communication unit an authentication message and at least part of a plurality of information bits which uniquely identifies a target communication unit, the authentication message being derived from the received information bits; and (b) determining in the intermediate communication unit, through the use of the received authentication message and the received at least part of the plurality of information bits, whether a received service request is authentic.
Claim 43
Independent Claim
84 words
A method of authenticating a subscriber unit in a communication system, comprising: (a) receiving in an intermediate communication unit an authentication message and at least part of a plurality of information bits which uniquely identifies a target communication unit, the authentication message being derived from the received information bits; and (b) determining in the intermediate communication unit, through the use of the received authentication message and the received at least part of the plurality of information bits, whether a received service request is authentic.
Claim 44
Dependent Claim
48 words
The method of claim 33 wherein: (a) the intermediate communication unit is provided with information regarding an identification number; and (b) the determination in the intermediate communication unit of whether a received service request is authentic further occurs through the use of the information regarding the identification number.
Claim 45
Dependent Claim
22 words
The method of claim 33 wherein the authentication message is further derived from a random number known to the intermediate communication unit.
Claim 46
Dependent Claim
39 words
The method of claim 33 wherein the authentication message is received during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 47
Dependent Claim
73 words
The method of claim 33 wherein the step of determining further comprises: (a) granting communication between the subscriber unit and the target communication unit uniquely identified by the received information bits, if the received authentication message was substantially derived from the received information bits; and (b) providing output indicating that a multiple user is attempting to access the communication system, if the received authentication message was not substantially derived from the received digits.
Claim 48
Dependent Claim
65 words
A subscriber unit which authenticates communications with a communication unit of a communication system, comprising: (a) memory means for maintaining a non-arbitrary value which is a count of occurrences of a communication event; (b) processor means for generating an authentication message as a function of at least part of the non-arbitrary value; and (c) transmitter means for transmitting the authentication message to the communication unit.
Claim 49
Dependent Claim
65 words
A subscriber unit which authenticates communications with a communication unit of a communication system, comprising: (a) memory means for maintaining a non-arbitrary value which is a count of occurrences of a communication event; (b) processor means for generating an authentication message as a function of at least part of the non-arbitrary value; and (c) transmitter means for transmitting the authentication message to the communication unit.
Claim 50
Dependent Claim
67 words
The subscriber unit of claim 38 wherein the non-arbitrary value comprises a record of pseudo random communication events associated with the subscriber unit selected from the group consisting essentially of the number of telephone calls attributed to the subscriber unit, the number of channel handoffs attributed to the subscriber unit, a frame count assigned to the subscriber unit, and a slot count assigned to the subscriber unit.
Claim 51
Dependent Claim
74 words
An intermediate communication unit which authenticates a subscriber unit of a communication system, comprising: (a) a receiver unit receiving an authentication message and at least part of a plurality of dialed digits which uniquely identify a target communication unit, the authentication message being derived from the received dialed digits; and (b) a processor determining, through the use of the received authentication message and the received dialed digits, whether a received service request is authentic.
Claim 52
Dependent Claim
74 words
An intermediate communication unit which authenticates a subscriber unit of a communication system, comprising: (a) a receiver unit receiving an authentication message and at least part of a plurality of dialed digits which uniquely identify a target communication unit, the authentication message being derived from the received dialed digits; and (b) a processor determining, through the use of the received authentication message and the received dialed digits, whether a received service request is authentic.
Claim 53
Dependent Claim
40 words
The intermediate communication unit of claim 40: (a) further comprising memory means for providing information regarding an identification number; and (b) wherein the processor determining whether the received service request is authentic further utilizes the information regarding the identification number.
Claim 54
Dependent Claim
24 words
The intermediate communication unit of claim 40 wherein the received authentication message is further derived from a random number known to the communication unit.
Claim 55
Dependent Claim
43 words
The intermediate communication unit of claim 40 wherein the receiver unit receives the authentication message during a communication session on a communication medium selected from the group consisting essentially of a radio communication link, satellite link, fiber optic cable, coaxial cable, and wireline.
Claim 56
Dependent Claim
78 words
The intermediate communication unit of claim 40 wherein the processor further comprises: (a) means for granting communication between the subscriber unit and the target communication unit uniquely identified by the received dialed digits, if the received authentication message was substantially derived from the received dialed digits; and (b) means for providing output indicating that a multiple user is attempting to access the communication system, if the received authentication message was not substantially derived from the received dialed digits.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-05 | 2000-05-06 | 2000-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-05 | 2004-05-06 | 2004-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-05 | 2008-05-06 | 2008-11-05 | $7700.00 | Window Closed / Lapsed |