US 6,704,871 B1 · Cryptographic co-processor

Abstract

A secure communication platform on an integrated circuit is a highly integrated security processor which incorporates a general purpose digital signal processor (DSP), along with a number of high performance cryptographic function elements, as well as a PCI and PCMCIA interface. The secure communications platform is integrated with an off-the-shelf DSP so that a vendor who is interested in digital signal processing could also receive built-in security functions which cooperate with the DSP. The integrated circuit includes a callable library of cryptographic commands and encryption algorithms. An encryption processor is included to perform key and data encryption, as well as a high performance hash processor and a public key accelerator.

Claims8

Dependent claims

A cryptographic co-processor comprising:

a processing unit for processing data;
a read only memory electronically linked to the processing unit and including a masked programmed a masked programmed user selectable library of encryption algorithms;
and cryptographic library of encryption algorithms;
and
an encryption processor for encrypting data, the encryption processor and the processing unit being situated on the same platform.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

09/154,443Filed 16 Sep 1998 · us provisional application

Priority

16 Sep 1997

Granted

9 Mar 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

G06F 21/72
To assure secure computing or processing of information: in cryptographic circuits
G06F 21/74
To assure secure computing or processing of information: operating in dual or compartmented mode, i.e. at least one secure mode
G09C 1/00
Apparatus or methods whereby a given sequence of signs
H04L 9/0643
The encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions;…

Family

Application60/059,082Us provisional application · filed 16 Sep 1997

Application60/059,839Us provisional application · filed 16 Sep 1997

Application60/058,840Us provisional application · filed 16 Sep 1997

Application60/059,841Us provisional application · filed 16 Sep 1997

Application60/059,842Us provisional application · filed 16 Sep 1997

Application60/059,843Us provisional application · filed 16 Sep 1997

Application60/059,844Us provisional application · filed 16 Sep 1997

Application60/059,845Us provisional application · filed 16 Sep 1997

Application60/059,846Us provisional application · filed 16 Sep 1997

Application60/059,847Us provisional application · filed 16 Sep 1997

US 6,704,871 B1This patent

From the US filing history. Foreign family members aren’t listed.

Cryptographic co-processor

Life of this patent

Cryptographic co-processor

Life of this patent

Abstract

Claims8