发明授权
- 专利标题: Data encryption security module
- 专利标题(中): 数据加密安全模块
-
申请号: US550910申请日: 1995-10-31
-
公开(公告)号: US5999629A公开(公告)日: 1999-12-07
- 发明人: Daniel Nelson Heer , David P. Maher
- 申请人: Daniel Nelson Heer , David P. Maher
- 申请人地址: NJ Murray Hill
- 专利权人: Lucent Technologies Inc.
- 当前专利权人: Lucent Technologies Inc.
- 当前专利权人地址: NJ Murray Hill
- 主分类号: H04L9/08
- IPC分类号: H04L9/08 ; H04L9/30 ; H04L9/00 ; H04K1/00
摘要:
We have recognized that there is a strong need to control and maintain the secrecy of the intelligence that may be used by computers to communicate with another, for example, by encrypting the messages that they exchange with one another. Thus, the encryption keys used to encrypt such messages need to be managed in a highly secure manner. Accordingly, we provide an encryption module, which, in accord with an aspect of the invention, generates a unique device encryption key (S.sub.local), a cryptographic key formed from a unique identification key (S.sub.id) and an associated public key (KP.sub.id), and at least one program encryption key, in which the public key is generated as a function of the unique identification key. The module then encrypts the unique identification key and program encryption key using said device encryption key and stores the encrypted result in memory internal to security module, thereby securing the keys against misappropriation. In addition, the module provides a mechanism for using the program encryption key to encrypt information that it receives from an external source and store the encrypted information in memory external to the security module, and responsive to receiving from a requester a request for the program encryption key, encrypting the program encryption key, in accord with an aspect of the invention, using a symmetrical encryption key generated as a function of a public key generated by a security module associated with the requester. The former security module then supplies the encrypted program encryption key to the requester.
公开/授权文献
- US5133478A Pill dispenser 公开/授权日:1992-07-28
信息查询