Deciphering device using a cryptographic key changed at a predetermined timing

Abstract

An enciphering/deciphering apparatus and method are provided by which illegal copying can be prevented with a greater degree of certainty. Data enciphered by a 1394 interface (26) of a DVD player (1) is transmitted to a personal computer (2) and a magneto-optical disk apparatus (3) through a 1394 bus (11). In the magneto-optical disk apparatus (3) with which a change to a function is open to a user the received data is deciphered by a 1394 interface (36). In contrast in the personal computer (2) with which a change to a function is open to a -user the enciphered data is deciphered using a time variable key (50) by a 1394 interface (49) and a result of the decipherment is further deciphered using a session key by an application section.

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Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number				Explicitly Disclosed	Patent Type
4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Illustrative part: ---- Release: 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Illustrative part: ---- Release: 9 +1 -1				No	Family Member

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2G 3G 4G 5G

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
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EP2385439A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
CN1190033C	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
CN1206272A	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
CN100418317C	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
CN1632710A	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
DE69836450T2	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP0875813A2	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	Yes	Basis Patent
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EP0875813B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	Yes	Basis Patent
EP1298517A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP1298517B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP1742137A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP1742137B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP1742138A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
HK1022060A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
HK1080562A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
ID20227A	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
JPH10301492A	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
MY122244A	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
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TW379308B	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
US6256391B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
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KR100466474B1	3G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 125 319 v10.2.0 Version No: v10.2.0 Section No: Release : 10 S2 TS Number: TS 125 331 v10.1.0 Version No: v10.1.0 Section No: Release : 10 +1 -1	Yes	Family Member
EP2781985A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP2781986A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP2781986B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
US2015381359A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
US9467287B2	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP2998820A1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
EP2998820B1	4G,3G,2G	22/04/2014	ISLD-201404-004	SONY CORP	S1 TS Number: TS 133 401 v9.3.1 Version No: v9.3.1 Section No: Release : 9 S2 TS Number: TS 133 401 v9.3.0 Version No: v9.3.0 Section No: Release : 9 +1 -1	No	Family Member
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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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