公开(公告)号：EP2565812A4

公开(公告)日：2015-07-15

申请号：EP11774586

申请日：2011-04-15

Applicant: PANASONIC CORP

Inventor： FUTA YUICHI ,  UNAGAMI YUJI ,  MATSUZAKI NATSUME ,  SHIZUYA HIROKI ,  SAKAI MASAO ,  ISOBE SHUJI ,  KOIZUMI EISUKE ,  HASEGAWA SHINGO

IPC: G06F21/57 ,  G06F21/55

CPC classification number: G06F21/55 ,  G06F21/57 ,  G06F2221/2123 ,  G06F2221/2143

公开(公告)号：EP2172868A4

公开(公告)日：2014-12-03

申请号：EP08764197

申请日：2008-06-23

Applicant: PANASONIC CORP

Inventor： MATSUSHIMA HIDEKI ,  FUTA YUICHI ,  TAKAYAMA HISASHI ,  ITO TAKAYUKI ,  HAGA TOMOYUKI ,  SATO TAICHI

IPC: G06F21/62 ,  H04L9/08 ,  H04L9/14 ,  H04N7/16 ,  H04N7/167 ,  H04N21/254 ,  H04N21/266 ,  H04N21/4788 ,  H04N21/835 ,  H04N21/8355

CPC classification number: H04L9/0836 ,  G06F21/62 ,  G06F21/6236 ,  G06F2221/2107 ,  G06F2221/2113 ,  G06F2221/2115 ,  H04L9/088 ,  H04L9/0897 ,  H04L9/14 ,  H04L2209/603 ,  H04N7/165 ,  H04N7/1675 ,  H04N21/2541 ,  H04N21/26613 ,  H04N21/4788 ,  H04N21/835 ,  H04N21/8355

Abstract: Provided is a migration system considering security authentication levels and data protection strength levels of the both security devices between which data is migrated. A first terminal 102 includes a mechanism for protecting data by a private key in the public key method held by TPM, and a second terminal 103 includes a key in the private key method encrypted by the private key in the public key method held by TPM and a mechanism for protecting the data by the key. A Migration Authority 101 holds a security policy table describing a security policy and judges whether data movement from the first terminal 102 to the second terminal 103 is enabled according to the security policy table.

公开(公告)号：EP2259205A4

公开(公告)日：2012-12-26

申请号：EP08873668

申请日：2008-11-06

Applicant: PANASONIC CORP

Inventor： MAEDA MANABU ,  FUTA YUICHI ,  MATSUZAKI NATSUME ,  YOKOTA KAORU ,  NONAKA MASAO ,  UNAGAMI YUJI ,  SHIZUYA HIROKI ,  HASEGAWA SHINGO ,  MINAGAWA MARIKA

IPC: G06F21/22 ,  G06F9/445 ,  G06F11/00 ,  G06F21/00

CPC classification number: G06F21/57 ,  G06F21/51

Abstract: To aim provide a software update apparatus including an install module group (130) composed of a plurality of install modules. Each of the install modules has a function of receiving, from an external server (200), a replacement protection control module (121) to be used for updating a protection control module (120) having a function of verifying whether a predetermined application has been tampered with. Each of the install modules simultaneously running is verified by at least another one of the install modules simultaneously running, as to whether the install module has a possibility of performing malicious operations.

公开(公告)号：EP1843512A4

公开(公告)日：2008-12-10

申请号：EP06711788

申请日：2006-01-17

Applicant: PANASONIC CORP

Inventor： FUTA YUICHI ,  HASEGAWA SHINGO ,  ISOBE SHUJI ,  OHMORI MOTOJI ,  SHIZUYA HIROKI

IPC: H04L9/32 ,  H04L9/14

CPC classification number: H04L9/14 ,  H04L9/3066 ,  H04L9/3093 ,  H04L9/3247

Abstract: There is provided a signature generation apparatus capable of preventing transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.