US 11,057,538 B1Granted

Methods and systems for tagged-signal verification

OwnerBoris Goldberg, Vittaly Tavorinventors

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Abstract

The present invention discloses methods and systems for tagged-signal verification. Methods include: upon obtaining original content, generating identity and semantic signatures; superposing the identity signature on the content as an in-band digital watermark; utilizing the semantic signature by: superposing on the content or storing; transmitting a tagged signal combining watermark and content; upon receiving the tagged signal with a verification request, extracting transmitted content; extracting the watermark to retrieve a transmitted identity signature; determining the transmitted identity signature is valid by comparing to the original; obtaining the original semantic signature either by: extracting from the watermark, or retrieving a stored version; generating a transmitted semantic signature; verifying the transmitted semantic signature is identical to the original; determining the transmitted content is tamper-free and identical to the original, or has been manipulated; and transmitting a confirmation notification vouching for the authenticity as a genuine version, or designating as a tampered version.

Claims15

Dependent claims

A method for tagged-signal verification, the method comprising the steps of:

(a) upon obtaining original content to be transmitted to a recipient device in verified form, generating an original identity signature for said original content;
(b) generating an original semantic signature for said original content;
(c) superposing said original identity signature on said original content as an in-band digital watermark;
(d) utilizing said original semantic signature either by:
(i) superposing said original semantic signature on said original content as part of said in-band digital watermark;
or
(ii) storing said original semantic signature for verification;
(e) transmitting a tagged signal, wherein said tagged signal is a combined signal of said in-band digital watermark and said original content;
(f) upon receiving said tagged signal from said recipient device with a verification request, extracting transmitted content from said tagged signal;
(g) extracting said in-band digital watermark from said tagged signal to retrieve a transmitted identity signature;
(h) determining whether said transmitted identity signature is valid by comparing said transmitted identity signature to said original identity signature;
(i) obtaining said original semantic signature either by:
(i) extracting said original semantic signature from said in-band digital watermark;
or
(ii) retrieving a stored version of said original semantic signature;
(j) generating a transmitted semantic signature from said transmitted content;
(k) verifying whether said transmitted semantic signature is identical to said original semantic signature;
(l) determining whether said transmitted content is tamper-free and identical to said original content, or has been manipulated based on said step of verifying;
and
(m) transmitting a confirmation notification to said recipient device, wherein said confirmation notification is adapted to:
(i) vouch for the authenticity of said transmitted content as a genuine version of said original content;
or
(ii) designate said transmitted content as a tampered version of said original content.

20 more elements

A system for tagged-signal verification, the system comprising:

(a) a CPU for performing computational operations;
(b) a memory module for storing data;
(c) a network connection for communicating across a network;
and
(d) a signing/verification module configured for signing and verifying original content to be transmitted to a recipient device in verified form, said signing/verification module including:
(i) an identity signature generator configured for:
(A) generating an original identity signature for said original content;
and
(B) superposing said original identity signature on said original content as an in-band digital watermark;
(ii) a semantic signature generator configured for:
(A) generating an original semantic signature for said original content;
and
(B) utilizing said original semantic signature either by:
(I) superposing said original semantic signature on said original content as part of said in-band digital watermark;
or
(II) storing said original semantic signature by said memory module for verification;
(iii) an original content extractor configured for, upon receiving a tagged signal from said recipient device with a verification request, extracting transmitted content from said tagged signal, wherein said tagged signal is a combined signal of said in-band digital watermark and said original content, and wherein said tagged signal is transmitted by said network connection;
(iv) an in-band signature extractor configured for:
(A) extracting said in-band digital watermark from said tagged signal to retrieve a transmitted identity signature;
and/or
(B) extracting said original semantic signature from said in-band digital watermark;
(v) a signature comparator configured for:
(A) determining whether said transmitted identity signature is valid by comparing said transmitted identity signature to said original identity signature;
(B) obtaining said original semantic signature either by extracting by said in-band signature extractor or by retrieving a stored version from said memory module;
(C) verifying whether a transmitted semantic signature is identical to said original semantic signature, wherein said transmitted semantic signature is generated from said transmitted content by said semantic signature generator;
and
(D) determining whether said transmitted content is tamper-free and identical to said original content, or has been manipulated based on said verifying;
and
(vi) an alert notifier configured for transmitting, via said network connection, a confirmation notification to said recipient device, wherein said confirmation notification is adapted to:
(A) vouch for the authenticity of said transmitted content as a genuine version of said original content;
or
(B) designate said transmitted content as a tampered version of said original content.

29 more elements

A non-transitory computer-readable storage medium, having computer-readable code embodied on the non-transitory computer-readable storage medium, for tagged-signal verification, the computer-readable code comprising:

(a) program code for, upon obtaining original content to be transmitted to a recipient device in verified form, generating an original identity signature for said original content;
(b) program code for generating an original semantic signature for said original content;
(c) program code for superposing said original identity signature on said original content as an in-band digital watermark;
(d) program code for utilizing said original semantic signature either by:
(i) superposing said original semantic signature on said original content as part of said in-band digital watermark;
or
(ii) storing said original semantic signature for verification;
(e) program code for transmitting a tagged signal, wherein said tagged signal is a combined signal of said in-band digital watermark and said original content;
(f) program code for, upon receiving said tagged signal from said recipient device with a verification request, extracting transmitted content from said tagged signal;
(g) program code for extracting said in-band digital watermark from said tagged signal to retrieve a transmitted identity signature;
(h) program code for determining whether said transmitted identity signature is valid by comparing said transmitted identity signature to said original identity signature;
(i) program code for obtaining said original semantic signature either by:
(i) extracting said original semantic signature from said in-band digital watermark;
or
(ii) retrieving a stored version of said original semantic signature;
(j) program code for generating a transmitted semantic signature from said transmitted content;
(k) program code for verifying whether said transmitted semantic signature is identical to said original semantic signature;
(l) program code for determining whether said transmitted content is tamper-free and identical to said original content, or has been manipulated based on said verifying;
and
(m) program code for transmitting a confirmation notification to said recipient device, wherein said confirmation notification is adapted to:
(i) vouch for the authenticity of said transmitted content as a genuine version of said original content;
or
(ii) designate said transmitted content as a tampered version of said original content.

20 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/731,221Filed 31 Dec 2019
Published: US 2021/0203803 A11 Jul 2021
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04N 1/32144
Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title: embedded in the image data, i.e.…
H04L 9/0869
Generation of secret information including derivation or calculation of cryptographic keys or passwords: involving random numbers or seeds
H04L 9/3231
Using a predetermined code, e.g. password, passphrase or PIN: biological data, e.g. fingerprint, voice or retina
H04L 9/3247
Including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity…:…