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1. WO2020111403 - STREAM CIPHER-BASED IMAGE SECURITY METHOD USING ZERO-WATERMARKING, SERVER, AND COMPUTER READABLE RECORDING MEDIUM

Publication Number WO/2020/111403
Publication Date 04.06.2020
International Application No. PCT/KR2019/004668
International Filing Date 18.04.2019
IPC
H04N 21/8358 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
835Generation of protective data, e.g. certificates
8358involving watermark
G06F 21/60 2013.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
G06F 21/62 2013.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
62Protecting access to data via a platform, e.g. using keys or access control rules
CPC
G06F 21/602
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
602Providing cryptographic facilities or services
G06F 21/62
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
62Protecting access to data via a platform, e.g. using keys or access control rules
H04N 21/8358
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
835Generation of protective data, e.g. certificates
8358involving watermark
Applicants
  • 주식회사우경정보기술 WOOKYOUNG INFORMATION TECHNOLOGY CO., LTD. [KR]/[KR]
Inventors
  • 김대수 KIM, Dae-Soo
  • 박윤하 PARK, Yun-Ha
Agents
  • 특허법인 천지 IPCJ PATENT & LAW FIRM
Priority Data
10-2018-015273130.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) STREAM CIPHER-BASED IMAGE SECURITY METHOD USING ZERO-WATERMARKING, SERVER, AND COMPUTER READABLE RECORDING MEDIUM
(FR) PROCÉDÉ DE SÉCURITÉ D’IMAGE BASÉ SUR UN FLUX CHIFFRÉ À L’AIDE D’UN TATOUAGE NUMÉRIQUE NUL, SERVEUR ET SUPPORT D’ENREGISTREMENT LISIBLE PAR ORDINATEUR
(KO) 스트림 암호 기반의 제로-워터마킹을 이용한 영상 보안 방법, 서버, 및 컴퓨터 판독 가능한 기록 매체
Abstract
(EN)
A stream cipher-based image security method using zero-watermarking comprises the steps of: acquiring information relating to an image including a first to an Nth (N is a natural number larger than or equal to 1) image frame; generating, on the basis of a counter mode of a block cipher, ciphered image frames corresponding to the first to the Nth image frame, respectively; and generating watermark keys corresponding to the first to the Nth image frame, respectively.
(FR)
Un procédé de sécurité d’image basé sur un flux chiffré à l’aide d’un tatouage numérique nul comprend les étapes consistant à : acquérir des informations relatives à une image incluant des première à Nième (N étant un nombre entier naturel égal ou supérieur à 1) trames d’image ; générer, sur la base d’un mode compteur d’un chiffrement par bloc, des trames d’image chiffrées correspondant respectivement aux première à Nième trames d’image ; et générer des clés de tatouage correspondant respectivement aux première à Nième trames d’image.
(KO)
스트림 암호 기반의 제로-워터마킹을 이용한 영상 보안 방법은, 제1 내지 제N (N은 1 이상의 자연수)번째 영상 프레임을 포함하는 영상에 대한 정보를 획득하는 단계; 블록 암호의 카운터 모드를 기초로 하여, 상기 제1 내지 제N 번째 영상 프레임 각각에 대응하는 암호화된 영상 프레임들을 생성하는 단계; 및 상기 제1 내지 제N 번째 영상 프레임 각각에 대응하는 워터마크 키를 생성하는 단계를 포함한다.
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