Abstract: System and Method for Content Encryption in a Key/Value Store System and method embodiments are provided for content encryption in a key/value store. The embodiments include encrypting both the key and value of client data blocks for storage so that the data can be retrieved reliability without compromising the key. An embodiment method includes obtaining a key from a data block comprising the key and a value, encrypting the key using a deterministic encryption algorithm with an encryption key to map the key to a cypher text in a one-to-one mapping, and encrypting the value using a second encryption algorithm to randomly map the value to a second cypher text. Encrypting both the key and the value provides more protection to the client data instead of encrypting only the value and leaving the key vulnerable without encryption. The encrypted key can also be protected from unauthorized access and from the owner of the database or the storage system.

Abstract: System and method embodiments are provided for content encryption in a key/value store. The embodiments include encrypting both the key and value of client data blocks for storage so that the data can be retrieved reliability without compromising the key. An embodiment method includes obtaining a key from a data block comprising the key and a value, encrypting the key using a deterministic encryption algorithm with an encryption key to map the key to a cypher text in a one-to-one mapping, and encrypting the value using a second encryption algorithm to randomly map the value to a second cypher text. Encrypting both the key and the value provides more protection to the client data instead of encrypting only the value and leaving the key vulnerable without encryption. The encrypted key can also be protected from unauthorized access and from the owner of the database or the storage system.

Abstract: System and method embodiments are provided for content encryption in a key/value store. The embodiments include encrypting both the key and value of client data blocks for storage so that the data can be retrieved reliability without compromising the key. An embodiment method includes obtaining a key from a data block comprising the key and a value, encrypting the key using a deterministic encryption algorithm with an encryption key to map the key to a cypher text in a one-to-one mapping, and encrypting the value using a second encryption algorithm to randomly map the value to a second cypher text. Encrypting both the key and the value provides more protection to the client data instead of encrypting only the value and leaving the key vulnerable without encryption. The encrypted key can also be protected from unauthorized access and from the owner of the database or the storage system.

Abstract: System and method embodiments are provided for integrity check and recovery in a key/value store. An embodiment method includes receiving a command to retrieve a data block stored in the key-value store system, the command indicating a key associated with the data block. The method further includes retrieving one or more copies of the stored data block including the key, a value, a data integrity check algorithm, and an integrity value, and performing data integrity check on the retrieved one or more copies of the data block using the data integrity check algorithm, the integrity value, and at least one of the key and the value. Upon one or more copies of the data block failing the data integrity check, the one or more copies of the data block are repaired and the data block is delivered.

Abstract: System and method embodiments are provided for improving the performance of data compression for storage systems. The embodiments enable selectively compressing data for storage on a block by block basis to save resources and computation time and cost. The system and method also handle the compression of different types of data blocks using different targeted algorithms. In an embodiment, a method for compressing data in a storage system includes receiving one or more data blocks for storage, determining whether to compress one or more data blocks according to attributes of the one or more data blocks, upon determining to compress a data block from the one or more data blocks, compressing the data block, and storing the compressed data block. The attributes include at least one of a name of the data block, a file type of the data block, and information in the data block.

Abstract: A cache controller (210) includes a streaming memory attribute. The cache controller (210) is coupled to provide data from a cache line within a cache (228) to a memory (124) when both (a) the cache line is full and (b) the streaming memory attribute is set.

Abstract: Initializing and configuring computer hardware with firmware stored in compressed form in nonvolatile semiconductor memory. Upon startup of the computer hardware, decompression software decompress the firmware, which is then stored in another memory. The computer hardware may be an adapter board (e.g., a graphics board connected to PCI bus), the nonvolatile semiconductor memory may be physically located on the adapter board, and the firmware may be firmware for initializing and configuring the adapter board. The decompression software may be stored in the same nonvolatile semiconductor memory as the firmware, and may be written in a machine-independent language (e.g., a Forth-based language). The compression technique used may include both run-length encoding and pattern compression, and may operate at the bit level.