Apparatus and method for establishing trust
First Claim
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1. A method for establishing communications with a computer entity, comprising:
- requesting a trusted device associated with a computer entity to provide an integrity metric calculated for the entity by the trusted device and containing values indicative of one or more characteristics of the entity;
receiving a response from the trusted device including an integrity metric calculated for the entity by the trusted device;
comparing values in the integrity metric calculated for the entity by the trusted device with authenticated values provided for the entity by a trusted party; and
selecting a level of trust for the entity from a plurality of predefined levels of trusts based on at least one value in the integrity metric calculated for the entity by the trusted device.
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Abstract
Computer apparatus comprising a receiver for receiving an integrity metric for a computer entity via a trusted device associated with the computer entity, the integrity metric having values for a plurality of characteristics associated with the computer entity; a controller for assigning a trust level to the computer entity from a plurality of trust levels, wherein the assigned trust level is based upon the value of at least one of the characteristics of the received integrity metric.
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Citations
37 Claims
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1. A method for establishing communications with a computer entity, comprising:
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requesting a trusted device associated with a computer entity to provide an integrity metric calculated for the entity by the trusted device and containing values indicative of one or more characteristics of the entity; receiving a response from the trusted device including an integrity metric calculated for the entity by the trusted device; comparing values in the integrity metric calculated for the entity by the trusted device with authenticated values provided for the entity by a trusted party; and selecting a level of trust for the entity from a plurality of predefined levels of trusts based on at least one value in the integrity metric calculated for the entity by the trusted device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for establishing communications between a computer entity and a user, comprising:
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presenting a request from the user to a trusted device associated with a computer entity to provide an integrity metric calculated for the entity by the trusted device and containing values indicative of one or more characteristics of the entity; presenting to the user a response from the trusted device including an integrity metric calculated for the entity by the trusted device; comparing at the user values in the integrity metric calculated for the entity by the trusted device with authenticated values provided for the entity by a trusted party; and selecting at the user a level of trust for the entity from a plurality of predefined levels of trusts available to the user based on at least one value in the integrity metric calculated for the entity by the trusted device. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification