Authentication of data in a digital transmission system
First Claim
Patent Images
1. A method of authentication of data to be sent in a digital transmission system, the data being organized in a hierarchical structure comprising a series of at least three files, comprising the steps of:
- generating a first authentication value for at least one first file;
storing said first authentication value in a second file, wherein the second file is a subdirectory hierarchically above the at least one first file;
generating a second authentication value for said second file;
storing said second authentication value in a third file, wherein the third file is a subdirectory hierarchically above the second file; and
transmitting the hierarchical structure comprising said first, second, and third files and the first and second authentication values to a receiver using a transmitter.
6 Assignments
0 Petitions
Accused Products
Abstract
A method of authentication of data to be sent in a digital transmission system, the data being organized in a series of at least three files, involving generating a first authentication value for at least one first file, storing said first authentication value in a second file, generating a second authentication value for said second file, storing said second authentication value in a third file, and transmitting said first, second, and third files to a receiver.
51 Citations
21 Claims
-
1. A method of authentication of data to be sent in a digital transmission system, the data being organized in a hierarchical structure comprising a series of at least three files, comprising the steps of:
-
generating a first authentication value for at least one first file; storing said first authentication value in a second file, wherein the second file is a subdirectory hierarchically above the at least one first file; generating a second authentication value for said second file; storing said second authentication value in a third file, wherein the third file is a subdirectory hierarchically above the second file; and transmitting the hierarchical structure comprising said first, second, and third files and the first and second authentication values to a receiver using a transmitter. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An apparatus for authentication of data to be sent in a digital transmission system, the data being organized in a hierarchical structure comprising a series of at least three files, the apparatus comprising:
-
a microprocessor for generating a first authentication value for at least one first file; tangible storage memory for storing said first authentication value in a second file, wherein the second file is a subdirectory hierarchically above the at least one first file; the microprocessor for generating a second authentication value for said second file; tangible storage memory for storing said second authentication value in a third file, wherein the third file is a subdirectory hierarchically above the second file; and a transmitter for transmitting the hierarchical structure comprising said first and second files and the first and second authentication values to a receiver. - View Dependent Claims (7, 8, 9, 10, 11)
-
-
12. A method of verification of encapsulated and formatted data received in a digital transmission system, the method comprising the steps of:
-
reassembling data from encapsulated and formatted data transmitted by the digital transmission system, wherein the received data is organized in a hierarchical structure comprising a first, a second, and a third file, and first and second authentication values, wherein the second file is a subdirectory hierarchically above the first file and comprises the first authentication value for the first file, and wherein the third file is a subdirectory hierarchically above the second file and comprises the second authentication value for the second file; and verifying, by a microprocessor, the reassembled data by using at least said second authentication value. - View Dependent Claims (13, 14, 15)
-
-
16. An apparatus for verification of encapsulated and formatted data received in a digital transmission system, the apparatus comprising:
-
microprocessor for reassembling data from encapsulated and formatted data transmitted by the digital transmission system, wherein the received data is organized in a hierarchical structure comprising a first, a second, and a third file, and first and second authentication values, wherein the second file is a subdirectory hierarchically above the first file and comprises the first authentication value for the first file, and wherein the third file is a subdirectory hierarchically above the second file and comprises the second authentication value for the second file; and a microprocessor for verifying the reassembled data by using at least said second authentication value. - View Dependent Claims (17, 18, 19, 20, 21)
-
Specification