Unique digital signature
First Claim
Patent Images
1. A unique digital signature comprising:
- a service identifier corresponding to a mailbox of an electronic messaging system; and
an adapted digital signature created using an index number and a system key as inputs;
wherein the service identifier and the adapted digital signature are concatenated to form the unique digital signature; and
wherein the unique digital signature is configured to be authenticated no more than a fixed number of times, the fixed number of times corresponding to the index number.
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Abstract
A method and apparatus for a unique digital signature is provided. According to one aspect of the invention, a unique digital signature comprises an adapted digital signature and a service id. The adapted digital signature provides temporary or restricted privileges for a particular electronic service. In one embodiment, the electronic service is electronic message forwarding. In another embodiment, the electronic service is electronic media delivery. An authentication log file is maintained for recording status information concerning unique digital signatures.
109 Citations
22 Claims
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1. A unique digital signature comprising:
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a service identifier corresponding to a mailbox of an electronic messaging system; and
an adapted digital signature created using an index number and a system key as inputs;
wherein the service identifier and the adapted digital signature are concatenated to form the unique digital signature; and
wherein the unique digital signature is configured to be authenticated no more than a fixed number of times, the fixed number of times corresponding to the index number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A unique digital signature comprising:
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a service identifier corresponding to a mailbox of an electronic message system;
an adapted digital signature configured to be authenticated no more than a fixed number of times, the adapted digital signature appended to the service identifier; and
a domain name following the adapted digital signature. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification