公开(公告)号：CA2157971A1

公开(公告)日：1996-03-16

申请号：CA2157971

申请日：1995-09-11

Applicant: IBM

Inventor： ARNOLD TODD W

IPC: G06F1/00 ,  G06F21/00 ,  H04L9/30 ,  H04L9/32

Abstract: The present invention overcomes the disadvantages and limitations of the related art by providing an apparatus and method for secure distribution of software, software updates, and configuration data. Cryptography is used to protect software or data updates sent to computer products or peripherals using non-secure distribution channels. In the preferred embodiment, the contents of the data cannot be read by anyone who obtains the data, and the data will not be accepted unless it is unmodified and originated with the valid source for such data.

公开(公告)号：CA2026739A1

公开(公告)日：1991-04-07

申请号：CA2026739

申请日：1990-10-02

Applicant: IBM

Inventor： ABRAHAM DENNIS G ,  ADEN STEVEN G ,  ARNOLD TODD W ,  NECKYFAROW STEVEN W ,  ROHLAND WILLIAM S

IPC: G06K19/073 ,  G06F12/12 ,  G06F21/00 ,  G06K17/00 ,  G07F7/10 ,  G11C5/00 ,  H04L9/32 ,  H04L29/06

Abstract: An improved security system is disclosed which uses especially an IC card to enhance the security functions involving component authentication, user verification, user authorization and access control, protection of message secrecy and integrity, management of cryptographic keys, and auditablity. Both the security method and the apparatus for embodying these functions across a total system or network using a common cryptographic architecture are disclosed. Authorization to perform these functions in the various security component device nodes in the network can be distributed to the various nodes at which they will be executed in order to personalize the use of the components.

公开(公告)号：CA2131673A1

公开(公告)日：1995-06-30

申请号：CA2131673

申请日：1994-09-08

Applicant: IBM

Inventor： ARNOLD TODD W

IPC: G02B26/10 ,  H04N1/03 ,  G06K19/07