Entity authentication for pre-authenticated links
US-2024396898-A1 · Nov 28, 2024 · US
Decrypt and encrypt data of storage device
US9323943B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9323943-B2 |
| Application number | US-201313874322-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2013 |
| Priority date | Apr 30, 2013 |
| Publication date | Apr 26, 2016 |
| Grant date | Apr 26, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
Data read from a volume is decrypted using a first key. The decrypted data is encrypted using a second key. The encrypted data is written back to the volume. An access request to a location of the volume is received from a host. Data is encrypted to or decrypted from the location using the first or second key, in response to the access request. The first key is used for the access request if the location has not been decrypted using the first key and encrypted using the second key. The second key is used for the access request if the location has been decrypted using the first key and encrypted using the second key.
First claim
Opening claim text (preview).
We claim: 1. A device, comprising: a decryption unit to read data from an entire volume and decrypt the read data using a first key, wherein the volume includes a plurality of blocks and the first key is to be different for at least two of the blocks based on a logical block address (LBA) of the block, and wherein the decryption unit comprises electronic circuitry for implementing functionality; an encryption unit to encrypt the decrypted data using a second key and to write the…
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Physics · mapped topic
- G06F21/6218Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9323943B2 cover?
- Data read from a volume is decrypted using a first key. The decrypted data is encrypted using a second key. The encrypted data is written back to the volume. An access request to a location of the volume is received from a host. Data is encrypted to or decrypted from the location using the first or second key, in response to the access request. The first key is used for the access request if th…
- Who is the assignee on this patent?
- Hewlett Packard Development Co, Hewlett Packard Entpr Dev Lp
- What technology area does this patent fall under?
- Primary CPC classification G06F21/6218. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).