Method and apparatus for evaluating trust and transitivity of trust of online services
First Claim
1. A method of evaluating trust of a target web document present in a web environment which comprises a plurality of web documents, the method comprising:
- defining a plurality of trust attributes for the target web document, the plurality of trust attributes being categorized in a first category which relates to contents of the web document, a second category which relates to owner of the web document, and a third category which relates to relationships of the web document and certificate authorities;
obtaining trust attribute values of at least some of the trust attributes;
calculating a P value representing a standalone page trust assessment of the target web document based on trust attribute values in the first category;
calculating a Q value representing a standalone page trust assessment of the target web document based on trust attribute values in the second and third categories;
calculating an S value representing a subordinate node assessment, based on a total trust value and a relevance value R of each of a plurality of other web documents linked to the target web document; and
calculating a total trust value of the target web document based on the P, Q and S values.
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Abstract
A W3 Trust Model is described for evaluating trust and transitivity of trust of online services. By introducing a set of trust attributes for each web document, the W3 Trust Model combines a vertically trusted public key infrastructure with a horizontal referral web classification. It provides a mechanism to assess both the trust and the transitivity of trust of web contents in a heterogeneous environment. The trust attributes are categorized in three categories: a first category which relates to contents of the web document, a second category which relates to owner of the web document, and a third category which relates to relationships of the web document and certificate authorities. The method includes calculating a P value representing a standalone page trust assessment of the target web document based on trust attribute values in the first category, a Q value representing a standalone page trust assessment of the target web document based on trust attribute values in the second and third categories, and an S value representing a subordinate node assessment based on a total trust value and a relevance value R of each of a plurality of other web documents linked to the target web document. The P, Q and S values are then combined to calculate a total trust value of the target web document.
253 Citations
8 Claims
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1. A method of evaluating trust of a target web document present in a web environment which comprises a plurality of web documents, the method comprising:
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defining a plurality of trust attributes for the target web document, the plurality of trust attributes being categorized in a first category which relates to contents of the web document, a second category which relates to owner of the web document, and a third category which relates to relationships of the web document and certificate authorities;
obtaining trust attribute values of at least some of the trust attributes;
calculating a P value representing a standalone page trust assessment of the target web document based on trust attribute values in the first category;
calculating a Q value representing a standalone page trust assessment of the target web document based on trust attribute values in the second and third categories;
calculating an S value representing a subordinate node assessment, based on a total trust value and a relevance value R of each of a plurality of other web documents linked to the target web document; and
calculating a total trust value of the target web document based on the P, Q and S values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification