Patent · US Active

Buffer-caches for caching encrypted data via copy-on-encrypt

US8364985B1 · kind B1 · utility

8Cited by

2References

17Claims

0Family size

Assignee

Network Appliance, Inc. · US

Inventors

Ananthan Subramanian · San Ramon, US
Zi-Bin Yang · San Francisco, US

Key dates

Filing date	Dec 11, 2009
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Mar 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2107
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Encryption using copy-on-encrypt determines that plaintext data stored in a plaintext buffer is to be written out to an encrypted storage resource. In response to the determining, an encryption buffer is allocated. The plaintext data is copied from the plaintext buffer to the encryption buffer and the encryption buffer is encrypted. Encrypted data from the encryption buffer is written to the encrypted storage resource. The encryption buffer is de-allocated. Read or write requests from a client are satisfied by retrieving the plaintext data from the plaintext buffer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.