Method and system for data encryption and decryption
    1.
    发明授权
    Method and system for data encryption and decryption 有权
    数据加密和解密的方法和系统

    公开(公告)号:US08234504B2

    公开(公告)日:2012-07-31

    申请号:US10414575

    申请日:2003-04-15

    IPC分类号: G06F21/00

    CPC分类号: H04L9/0625 H04L9/0894

    摘要: Certain embodiments of the invention provide a method and system for memory to bus interface data encryption and decryption. A method for memory to bus interface data encryption and decryption may include encrypting data by a encryption/decryption engine or processor and transferring the encrypted data across a first bus interface to a data processing and/or storage device coupled to the first bus interface. The encryption engine may receive encrypted data from a device coupled to the first bus interface and decrypt the received encrypted data. In this regard, unencrypted data never traverses across the first bus interface, and is thereby not accessible to devices coupled to the first bus interface. An encryption function and a decryption function associated with the encryption/decryption engine may be integrated within a bus adapter, for example, an IDE bus adapter.

    摘要翻译: 本发明的某些实施例提供了一种用于存储器到总线接口数据加密和解密的方法和系统。 用于存储器到总线接口数据加密和解密的方法可以包括通过加密/解密引擎或处理器对数据进行加密,并将经加密的数据跨越第一总线接口传送到耦合到第一总线接口的数据处理和/或存储设备。 加密引擎可以从耦合到第一总线接口的设备接收加密数据,并对接收到的加密数据进行解密。 在这方面,未加密的数据永远不会穿过第一总线接口,并且因此不能被耦合到第一总线接口的设备访问。 与加密/解密引擎相关联的加密功能和解密功能可以集成在总线适配器(例如,IDE总线适配器)内。

    Method and system for data encryption and decryption
    2.
    发明授权
    Method and system for data encryption and decryption 有权
    数据加密和解密的方法和系统

    公开(公告)号:US07194627B2

    公开(公告)日:2007-03-20

    申请号:US10414844

    申请日:2003-04-15

    IPC分类号: G06F1/24

    CPC分类号: G06F21/85

    摘要: An aspect of the of the invention may include the transfer of a block of data from a first memory location to a second memory location in a DRAM. During the transfer of the block of data from the first memory location, if an encryption mode is selected, the data may be buffered, encrypted, and then stored in the second memory location. If a decryption mode is selected, the transferred data may be buffered, decrypted and then stored in the second memory location. If a bypass mode is selected, the data may be buffered and then stored in the second memory location. In this regard, the encryption/decryption operations may be bypassed.

    摘要翻译: 本发明的一个方面可以包括将数据块从第一存储器位置传送到DRAM中的第二存储器位置。 在从第一存储器位置传送数据块期间,如果选择加密模式,则数据可以被缓冲,加密,然后存储在第二存储单元中。 如果选择解密模式,则传输的数据可以被缓冲,解密,然后存储在第二存储器位置。 如果选择旁路模式,则数据可能被缓冲,然后存储在第二存储器位置。 在这方面,可以绕过加密/解密操作。