Source: http://www.google.cl/patents/US9258116
Timestamp: 2017-12-12 11:59:25
Document Index: 168642345

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 96919405']

Patent US9258116 - System and methods for permitting open access to data objects and for ... - Google Patents
A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. According to one embodiment of the present invention, a method for securing...http://www.google.cl/patents/US9258116?utm_source=gb-gplus-sharePatent US9258116 - System and methods for permitting open access to data objects and for securing data within the data objects
Publication number US9258116 B2
Application number US 14/271,559
Priority date 2 Jul 1996
Also published as US7177429, US7532725, US7813506, US8265278, US8767962, US8798268, US20020071556, US20070110240, US20090190754, US20110026709, US20120300928, US20130195270, US20140241524, US20160149701, US20170294206
Publication number 14271559, 271559, US 9258116 B2, US 9258116B2, US-B2-9258116, US9258116 B2, US9258116B2
Original Assignee Wistaria Trading Ltd
Patent Citations (505), Non-Patent Citations (244), Classifications (36), Legal Events (2)
US 9258116 B2
A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. The method includes the steps of (1) providing a data object comprising digital data and file format information; (2) embedding independent data into a data object; and (3) scrambling the data object to degrade the data object to a predetermined signal quality level. The steps of embedding and scrambling may be performed until a predetermined condition is met. The method may also include the steps of descrambling the data object to upgrade the data object to a predetermined signal quality level, and decoding the embedded independent data.
1. A method for streaming media over a network, comprising:
receiving in a first device an openly accessible data object comprising digital data and file format information;
said first device embedding independent data into the openly accessible data object and then scrambling the openly accessible data object to perceptibly degrade the openly accessible data object to a predetermined signal quality level where at least a portion of the independent data can be decoded from the scrambled openly accessible data object;
said first device repeatedly performing the steps of embedding and scrambling until a predetermined condition is met wherein the predetermined condition comprises reaching a desired signal quality level of the openly accessible data object, the repeated steps resulting in generation of an openly accessible data object having the desired signal quality;
said first device transmitting said openly accessible data object having the desired signal quality over a network;
a second device receiving over the network a signal stream comprising the said openly accessible data object having the desired signal quality;
said second device receiving a first key;
said second device applying a key based descrambling algorithm which takes as inputs at least one key and a signal stream and produces as output a descrambling algorithm output signal, to said first key and said signal stream, to produce a signal stream descrambling algorithm output signal; and
said second device generating at least one of an audible and a visual signal, based upon said signal stream descrambling algorithm output signal.
2. The method of claim 1 wherein said first key is parameterized to be signal specific to said signal stream such that application of said first key by said key based descrambling algorithm to said signal stream results in at least partial descrambling.
receiving in said second device a second key;
wherein said second device applying comprises said key based descrambling algorithm taking as input said second key.
4. The method of claim 1 wherein said first key provides a mapping to independent data, which independent data is distinct from said content, and which independent data is embedded in said signal stream, and said key based descrambling algorithm uses said first key to locate said independent data.
5. The method of claim 4 wherein said independent data comprises payment data indicating authorization to charge an account.
said second device decoding independent data, which is data independent of said content and contained in said signal stream, from said signal stream.
7. The method of claim 6 wherein said independent data comprises payment data indicating authorization to charge an account.
8. The method of claim 1 wherein said first device generates a plurality of openly accessible data objects each having said desired signal quality by repeatedly performing the steps of embedding and scrambling on each of this plurality of openly accessible data object, and transmitting the results of this processing over the network, in said signal stream.
9. The method of claim 8 wherein said signal stream comprises a plurality of channels and said second device receiving comprises said second device receiving different ones of said plurality of objects from different ones of said plurality of channels.
10. The method of claim 1 wherein said scrambling comprises manipulating file format information and said descrambling comprises descrambling the scrambled file format information.
11. A system for streaming media over a network, comprising:
first device designed to receive an openly accessible data object comprising digital data and file format information;
said first device designed to embed independent data into the openly accessible data object and then scramble the openly accessible data object to perceptibly degrade the openly accessible data object to a predetermined signal quality level where at least a portion of the independent data can be decoded from the scrambled openly accessible data object;
said first device designed to repeatedly perform steps of embedding and scrambling until a predetermined condition is met wherein the predetermined condition comprises reaching a desired signal quality level of the openly accessible data object, the repeated steps resulting in generation of an openly accessible data object having the desired signal quality;
said first device designed to transmit said openly accessible data object having the desired signal quality over a network;
a second device designed to receive over the network a signal stream comprising the said openly accessible data object having the desired signal quality;
said second device storing in memory a first key;
said second device designed to apply a key based descrambling algorithm which takes as inputs at least one key and a signal stream and produces as output a descrambling algorithm output signal, to said first key and said signal stream, to produce a signal stream descrambling algorithm output signal; and
said second device designed to generate at least one of an audible and a visual signal, based upon the signal stream descrambling algorithm output signal.
12. The system of claim 11 wherein said first key is parameterized to be signal specific to said signal stream such that application of said first key by said key based descrambling algorithm to said signal stream results in at least partial descrambling.
said second device storing a second key;
wherein said second device designed to apply said key based descrambling algorithm taking as input said second key.
14. The system of claim 11 wherein said first key provides a mapping to independent data, which independent data is distinct from said content, and which independent data is embedded in said signal stream, and said key based descrambling algorithm uses said first key to locate said independent data.
15. The system of claim 14 wherein said independent data comprises payment data indicating authorization to charge an account.
17. The system of claim 16 wherein said independent data comprises payment data indicating authorization to charge an account.
18. The system of claim 11 wherein said first device generates a plurality of openly accessible data objects each having said desired signal quality by repeatedly performing the steps of embedding and scrambling on each of this plurality of openly accessible data object, and transmitting the results of this processing over the network, in said signal stream.
19. The system of claim 18 wherein said signal stream comprises a plurality of channels and said second device receiving comprises said second device receiving different ones of said plurality of objects from different ones of said plurality of channels.
20. The system of claim 11 wherein said scrambling comprises manipulating file format information and said descrambling comprises descrambling the scrambled file format information.
This application is a continuation of U.S. application Ser. No. 13/794,742, filed Mar. 11, 2013, issued as U.S. Pat. No. 8,798,268, which is a continuation of U.S. application Ser. No. 13/572,641, filed Aug. 11, 2012, issued as U.S. Pat. No. 8,767,962, which is a continuation of U.S. application Ser. No. 12/886,732, filed Sep. 21, 2010, issued as U.S. Pat. No. 8,265,278, which is a continuation of U.S. application Ser. No. 12/383,879, filed Mar. 30, 2009, issued as U.S. Pat. No. 7,813,506, which is a continuation of U.S. application Ser. No. 11/647,861, filed Dec. 29, 2006, issued as U.S. Pat. No. 7,532,725, which is a continuation of U.S. application Ser. No. 09/731,039, filed Dec. 7, 2000, issued as U.S. Pat. No. 7,177,429, and U.S. application Ser. No. 09/731,039, filed Dec. 7, 2000, issued as U.S. Pat. No. 7,177,429, claims the benefit of U.S. Provisional Application No. 60/169,274, filed Dec. 7, 1999, and U.S. application Ser. No. 09/731,039, filed Dec. 7, 2000, issued as U.S. Pat. No. 7,177,429, claims the benefit of U.S. Provisional Application No. 60/234,199, filed Sep. 20, 2000. The previously identified patents and/or patent applications are hereby incorporated by reference, in their entireties.
This application is related to U.S. patent application Ser. No. 08/674,726, filed Jul. 2, 1996, entitled “Exchange Mechanisms for Digital Information Packages with Bandwidth Securitization, Multichannel Digital Watermarks, and Key Management”, issued as U.S. Pat. No. 7,362,775; U.S. patent application Ser. No. 08/999,766, filed Jul. 23, 1997, entitled “Steganographic Method and Device”, issued as U.S. Pat. No. 7,568,100; U.S. patent application Ser. No. 09/046,627, filed Mar. 24, 1998, entitled “Method for Combining Transfer Function with Predetermined Key Creation”, issued as U.S. Pat. No. 6,598,162; U.S. patent application Ser. No. 09/053,628, filed Apr. 2, 1998, entitled “Multiple Transform Utilization and Application for Secure Digital Watermarking”, issued as U.S. Pat. No. 6,205,249; U.S. patent application Ser. No. 09/281,279, filed Mar. 30, 1999, entitled “Optimization Methods for the Insertion, Protection, and Detection of Digital Watermarks in Digital Data”, issued as U.S. Pat. No. 6,522,767; U.S. Provisional Application No. 60/169,274, filed Dec. 7, 1999, entitled “Systems, Methods And Devices For Trusted Transactions”; U.S. patent application Ser. No. 09/456,319, filed Dec. 8, 1999, entitled “Z-Transform Implementation of Digital Watermarks”, issued as U.S. Pat. No. 6,853,726; U.S. patent application Ser. No. 09/545,589, filed Apr. 7, 2000, entitled “Method and System for Digital Watermarking”, issued as U.S. Pat. No. 7,007,166; U.S. patent application Ser. No. 09/594,719, filed Jun. 16, 2000, entitled “Utilizing Data Reduction in Steganographic and Cryptographic Systems”, which is a continuation-in-part of International Application No. PCT/US00/06522, filed Mar. 14, 2000, which PCT application claimed priority to U.S. Provisional Application No. 60/125,990, filed Mar. 24, 1999, issued as U.S. Pat. No. 7,123,718; International Application No. PCT/US00/21189, filed Aug. 4, 2000, which claims priority to U.S. Patent Application No. 60/147,134, filed Aug. 4, 1999, and to U.S. Patent Application No. 60/213,489, filed Jun. 23, 2000, both of which are entitled “A Secure Personal Content Server”, U.S. patent application Ser. No. 09/657,181, filed Sep. 7, 2000, entitled “Method And Device For Monitoring And Analyzing Signals”; U.S. Provisional Patent Application No. 60/234,199, filed Sep. 20, 2000, entitled “Improved Security Based on Subliminal and Supraliminal Channels For Data Objects”, issued as U.S. Pat. No. 7,127,615; U.S. patent application Ser. No. 09/671,739, filed Sep. 29, 2000, entitled “Method And Device For Monitoring And Analyzing Signals”; and U.S. patent application Ser. No. 09/731,039, entitled “Systems, Methods and Devices for Trusted Transactions,” filed Dec. 7, 2000, issued as U.S. Pat. No. 7,159,116. The previously identified patents and/or patent applications are hereby incorporated by reference, in their entireties.
Depending on the security issue being addressed, cryptography may be used to secure communications channels or to establish the identity of users of a given communications channel. Signatures represent a further embodiment of tamper proofing data and there are a number of known specialized signature functions to achieve various goals (zero knowledge, one time, subliminal free, etc.). The issue of how to assimilate the ease and inexpensive nature of digital communications with secure forms of authentication is thus a problem for which many potential solutions exist. The digital copy problem, however, may be more appropriately addressed by combining cryptographic features with steganography. Steganography is the art of hiding something in plain view.
Efforts to introduce the data integrity features of cryptography with the data hiding features of steganography resulted in the advent of digital watermarking Digital watermarking, based on steganographic ciphering, uses the cryptographic benefits of key creation with perceptual coding schemes to tamperproof digitally sampled data. Such data may include images, audio, video, multimedia, etc. While cryptographic protocol ensures that the transfer of data may be successfully authenticated, only secure digital watermarking may uniquely identify the data object in a manner consistent with the characteristics of the data. Thus, watermark encoders will likely differ for different media objects.
Transfer functions represent a class of functions that relate input data to output data. As used in this disclosure, the term “transfer function” is used in the format sense, that is, to refer to that class of transfer functions that is used to format input data for meaningful communication. A particular format may be chosen to emphasize subjective or perceptible measures, or both. When stored in a particular format, the data may be said to have an inherent granularity based on the characteristics of the format. The transfer function can be used to manipulate, or scramble, the input data, for example, based on at least one signal characteristic of the data object. That is, the input data is scrambled in a way that manipulates the input data at a level of its inherent granularity in accordance with its transfer function. See U.S. patent application Ser. No. 09/046,627, filed Mar. 24, 1998, entitled “Method for Combining Transfer Function with Predetermined Key Creation,” issued as U.S. Pat. No. 6,598,162, which disclosure is incorporated herein by reference.
The inherent granularity of the file format of the data may be thought of as signal characteristics or signal features. The changes may be associated with a pseudo-random key, or a cryptographically-generated key or key pair, and may be distributed and handled by downstream parties using existing browser, viewer or player technologies. This is disclosed in U.S. patent application Ser. No. 09/046,627, entitled “Method For Combining Transfer Functions With Predetermined Key Creation,” issued as U.S. Pat. No. 6,598,162, the disclosure of which is incorporated by reference in its entirety. A benefit of controlling the quality of a signal as it will be offered to a marketplace of participants may be an important consideration in determining pricing of the media. It is also a means for determining the quality threshold at which potential consumers may evaluate the data to make a purchasing decision. An important difference is that cryptography is not directed to the quality of the data, but only to access to the data.
One way to measure the threshold of payment is to measure a unit of payment against the ability to steganographically embed enough information to perform a successful authentication of payment information. Signature schemes are generally computationally expensive by orders of magnitude versus message authentication codes or one-way hashes. Given a relationship between the perceptibility of a signal and the available space for successfully hiding authentication data, a tampered signal stream may suffer both further quality degradation and a failure of the authentication protocols supporting payment mechanisms. Any inverse relationship between the signal quality and the decrease in the detectable number of payment-based hashes may be used to adjust signal quality parameters with payment parameters. Reasonable estimations for the cost and expense of embedding hashes, which may be quickly authenticated and reliably associated with payment, have been demonstrated in a variety of known micropayment schemes.
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International Classification H04K1/00, H04N21/2389, H04N21/44, H04N21/4405, H04N21/2347, H04N19/467, H04L9/08, H04N21/2343, H04N7/167, H04N21/8358, H04L29/06, G11B20/00, H04L9/00
Cooperative Classification H04L9/0861, G11B20/0021, H04N21/85406, H04N21/2351, G11B20/00985, H04L63/12, H04N21/8358, H04N21/2343, H04N21/2347, G11B2020/00014, G11B20/00818, G11B20/00086, H04N21/44008, G11B20/00891, H04L63/0428, G11B20/0071, H04N21/23476, H04N19/467, H04L9/00, H04N7/1675, H04N21/4405, H04L2209/34, H04N21/23892
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