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1. 发明授权

US09158933B2 Protection of encryption keys in a database 有权
标题翻译：保护数据库中的加密密钥
公开(公告)号：US09158933B2
公开(公告)日：2015-10-13
申请号：US12464617
申请日：2009-05-12
申请人： Barbara Jane Banks , Rajnish Kumar Chitkara , Shiping Chen
发明人： Barbara Jane Banks , Rajnish Kumar Chitkara , Shiping Chen
IPC分类号： H04L9/08 , H04L9/00 , G06F21/00 , G06F7/04 , H04L29/06 , G06F21/62
CPC分类号： G06F21/6227 , H04L9/085 , H04L9/0863 , H04L9/0891 , H04L9/0894
摘要： System, method, computer program product embodiments and combinations and sub-combinations thereof for protection of encryption keys in a database are described herein. An embodiment includes a master key and a dual master key, both of which are used to encrypt encryption keys in a database. To access encrypted data, the master key and dual master key must be supplied to a database server by two separate entities, thus requiring dual control of the master and dual master keys. Furthermore, passwords for the master and dual master keys must be supplied separately and independently, thus requiring split knowledge to access the master and dual master keys. In another embodiment, a master key and a key encryption key derived from a user password is used for dual control. An embodiment also includes supplying the secrets for the master key and dual master key through server-private files.
摘要翻译：这里描述了用于保护数据库中的加密密钥的系统，方法，计算机程序产品实施例及其组合和子组合。一个实施例包括主密钥和双主密钥，它们都用于加密数据库中的加密密钥。要访问加密数据，主密钥和双主密钥必须由两个单独的实体提供给数据库服务器，因此需要双重控制主密钥和双主密钥。此外，主主密钥和双主密钥的密码必须单独和独立提供，因此需要拆分知识以访问主密钥和双主密钥。在另一个实施例中，将主密钥和从用户密码导出的密钥加密密钥用于双重控制。实施例还包括通过服务器专用文件提供主密钥和双主密钥的秘密。

2. 发明申请

US20100290623A1 PROTECTION OF ENCRYPTION KEYS IN A DATABASE 有权
标题翻译：保护数据库中的加密密钥
公开(公告)号：US20100290623A1
公开(公告)日：2010-11-18
申请号：US12464617
申请日：2009-05-12
申请人： Barbara Jane Banks , Rajnish Kumar Chitkara , Shiping Chen
发明人： Barbara Jane Banks , Rajnish Kumar Chitkara , Shiping Chen
IPC分类号： H04L9/00 , G06F17/30
CPC分类号： G06F21/6227 , H04L9/085 , H04L9/0863 , H04L9/0891 , H04L9/0894
摘要： System, method, computer program product embodiments and combinations and sub-combinations thereof for protection of encryption keys in a database are described herein. An embodiment includes a master key and a dual master key, both of which are used to encrypt encryption keys in a database. To access encrypted data, the master key and dual master key must be supplied to a database server by two separate entities, thus requiring dual control of the master and dual master keys. Furthermore, passwords for the master and dual master keys must be supplied separately and independently, thus requiring split knowledge to access the master and dual master keys. In another embodiment, a master key and a key encryption key derived from a user password is used for dual control. An embodiment also includes supplying the secrets for the master key and dual master key through server-private files.
摘要翻译：这里描述了用于保护数据库中的加密密钥的系统，方法，计算机程序产品实施例及其组合和子组合。一个实施例包括主密钥和双主密钥，它们都用于加密数据库中的加密密钥。要访问加密数据，主密钥和双主密钥必须由两个单独的实体提供给数据库服务器，因此需要双重控制主密钥和双主密钥。此外，主主密钥和双主密钥的密码必须单独和独立提供，因此需要拆分知识以访问主密钥和双主密钥。在另一个实施例中，将主密钥和从用户密码导出的密钥加密密钥用于双重控制。实施例还包括通过服务器专用文件提供主密钥和双主密钥的秘密。

3. 发明授权

US07797342B2 Database system providing encrypted column support for applications 有权
标题翻译：为应用程序提供加密列支持的数据库系统
公开(公告)号：US07797342B2
公开(公告)日：2010-09-14
申请号：US11840306
申请日：2007-08-17
申请人： Barbara J. Banks , Rajnish Kumar Chitkara , Shiping Chen
发明人： Barbara J. Banks , Rajnish Kumar Chitkara , Shiping Chen
IPC分类号： G06F17/30
CPC分类号： G06F17/30595 , G06F17/30389 , G06F21/6227 , H04L9/0894 , Y10S707/99932 , Y10S707/99939 , Y10S707/99948
摘要： A database system providing encrypted column data support with decrypt default functionality. In a database system, a method providing automated encryption support for column data comprises steps of: defining Structured Query Language (SQL) extensions for creating and managing column encryption keys and database tables with encrypted column data; receiving an SQL statement specifying creation of a column encryption key; receiving an SQL statement specifying creation of a database table having particular column data encrypted with the column encryption key; receiving an SQL statement specifying a default value to be provided in response to requests for the column data without decrypt permission; in response to a subsequent database operation requesting encrypted column data from a user with decrypt permission, automatically decrypting the column data; and in response to a subsequent database operation requesting the encrypted column data from a user without decrypt permission, returning the default value.
摘要翻译：数据库系统提供加密列数据支持与解密默认功能。在数据库系统中，为列数据提供自动加密支持的方法包括以下步骤：定义用于创建和管理具有加密列数据的列加密密钥和数据库表的结构化查询语言（SQL）扩展; 接收指定创建列加密密钥的SQL语句; 指定创建具有用列加密密钥加密的特定列数据的数据库表的SQL语句; 接收一条SQL语句，指定响应于没有解密权限的列数据的请求而提供的默认值; 响应于从具有解密权限的用户请求加密列数据的后续数据库操作，自动解密列数据; 并且响应于后续的数据库操作在没有解密权限的情况下从用户请求加密的列数据，返回默认值。

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