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Rishi Kacker Phones & Addresses

  • 806 Coleman Ave, Menlo Park, CA 94025
  • Walnut, CA
  • 129 Lowell Ave, Palo Alto, CA 94301
  • 2 Townsend St, San Francisco, CA 94107
  • Woodside, CA
  • Thousand Oaks, CA
  • South San Francisco, CA
  • 88 King St APT 811, San Francisco, CA 94107

Work

Company: Counsyl Jan 2014 to Sep 2018 Position: Cofounder and senior vice president of products

Education

Degree: Bachelors, Bachelor of Science School / High School: Stanford University 1999 to 2003 Specialities: Computer Science

Languages

English

Interests

Stanford University • Voltage Security • San Francisco

Industries

Computer Software

Resumes

Resumes

Rishi Kacker Photo 1

Chief Technology Officer

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Location:
129 Lowell Ave, Palo Alto, CA 94301
Industry:
Computer Software
Work:
Counsyl Jan 2014 - Sep 2018
Cofounder and Senior Vice President of Products

Myriad Genetics Jan 2014 - Sep 2018
Chief Technology Officer

Counsyl Jan 2008 - Dec 2013
Cofounder and Vice President of Engineering

Voltage Security Jun 2002 - Dec 2007
Cofounder and Engineer and Product Strategy
Education:
Stanford University 1999 - 2003
Bachelors, Bachelor of Science, Computer Science
Interests:
Stanford University
Voltage Security
San Francisco
Languages:
English

Business Records

Name / Title
Company / Classification
Phones & Addresses
Rishi Kacker
Director, Vice President
Counsyl, Inc
Medical Laboratory · School/Educational Services
2200 Brg Pkwy, Redwood City, CA 94065
180 Kimball Pl, San Francisco, CA 94109
(888) 268-6795
Rishi Kacker
Director
Counsyl
Computer Software · Medical Diagnostic
180 Kimball Way, South San Francisco, CA 94080
South San Francisco, CA 94080
(888) 268-6795, (608) 541-2450, (650) 588-8107

Publications

Us Patents

Identity-Based Encryption System For Secure Data Distribution

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US Patent:
7003117, Feb 21, 2006
Filed:
Feb 5, 2003
Appl. No.:
10/361192
Inventors:
Rishi R. Kacker - Menlo Park CA, US
Guido Appenzeller - Menlo Park CA, US
Matthew J. Pauker - Menlo Park CA, US
Terence Spies - Palo Alto CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 9/00
US Classification:
380277, 380278, 380282, 726 1
Abstract:
A system is provided that allows encrypted content to be distributed to users over a communications network. A policy enforcement service may use an identity-based encryption algorithm to generate public parameter information and private keys. Data content may be encrypted prior to distribution using an identity-based encryption engine. The encryption engine may use the public parameter information from the policy service and public key information to encrypt the data. The public key information may be based on policy information that specifies which types of users are allowed to access the data that is encrypted using that public key. A user may obtain a private key for unlocking particular encrypted data by providing a key request to the policy enforcement service that contains the public key. The policy enforcement service may enforce the policies given by the policy information and may provide private keys only to authorized users.

Identity-Based-Encryption Messaging System With Public Parameter Host Servers

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US Patent:
7017181, Mar 21, 2006
Filed:
Jun 25, 2003
Appl. No.:
10/607195
Inventors:
Terence Spies - Palo Alto CA, US
Rishi R. Kacker - Menlo Park CA, US
Guido Appenzeller - Menlo Park CA, US
Matthew J. Pauker - Menlo Park CA, US
Eric Rescorla - Palo Alto CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
G06F 11/30
G06F 12/14
H04L 9/00
H04L 9/32
US Classification:
726 3, 713156, 713175, 380277, 380278, 380279
Abstract:
A system is provided that uses identity-based encryption (IBE) to support secure communications. Messages from a sender may be encrypted using an IBE public key and IBE public parameter information associated with a recipient. The recipient may decrypt IBE-encrypted messages from the sender using an IBE private key. A host having a service name may be used to store the IBE public parameter information. The sender may use a service name generation rule to generate the service name based on the IBE public key of the recipient. The sender may use the service name to obtain the IBE public parameter information from the host.

Secure Message System With Remote Decryption Service

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US Patent:
7266847, Sep 4, 2007
Filed:
Dec 22, 2003
Appl. No.:
10/744851
Inventors:
Matthew J. Pauker - San Francisco CA, US
Rishi R. Kacker - Woodside CA, US
Terence Spies - San Mateo CA, US
Lucas C. Ryan - San Francisco CA, US
Guido Appenzeller - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 29/00
US Classification:
726 27
Abstract:
Systems and methods for secure messaging are provided. A sender may encrypt content and send the encrypted content to a recipient over a communications network. The encrypted content may be decrypted for the recipient using a remote decryption service. Encrypted message content may be placed into a markup language form. Encrypted content may be incorporated into the form as a hidden form element. Form elements for collecting recipient credential information such as username and password information may also be incorporated into the form. At the recipient, the recipient may use the form to provide recipient credential information to the remote decryption service. The recipient may also use the form to upload the encrypted content from the form to the decryption service. The decryption service may provide the recipient with access to a decrypted version of the uploaded content over the communications network.

Public-Key Encryption System

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US Patent:
7412059, Aug 12, 2008
Filed:
Nov 27, 2002
Appl. No.:
10/307007
Inventors:
Matthew J Pauker - Menlo Park CA, US
Rishi R Kacker - Menlo Park CA, US
Guido Appenzeller - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 9/00
US Classification:
380277, 726 1
Abstract:
A system is provided that allows users to communicate securely. A key management service may generate a single public-key/private-key pair. A sender who desires to send a secure message to a receiver may encrypt the message using a message key. The sender may use the public key to encrypt the message key and policy information that dictates how the message may be accessed. The receiver may pass the public-key-encrypted message key and policy information to the key management service. The key management service decrypts this information using the private key. After the key management service uses the policy information to verify that the receiver is authorized to access the message, the key management service may provide the decrypted message key to the receiver. The receiver may use this unencrypted version of the message key to decrypt the message-key-encrypted message from the sender.

Identity-Based Encryption System

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US Patent:
7424614, Sep 9, 2008
Filed:
Jan 25, 2005
Appl. No.:
11/043807
Inventors:
Guido Appenzeller - Menlo Park CA, US
Matthew J. Pauker - Menlo Park CA, US
Rishi R. Kacker - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 9/00
US Classification:
713170, 713182, 713168
Abstract:
A system is provided that uses identity-based encryption to support secure communications. Messages from a sender to a receiver may be encrypted using the receiver's identity and public parameters that have been generated by a private key generator associated with the receiver. The private key generator associated with the receiver generates a private key for the receiver. The encrypted message may be decrypted by the receiver using the receiver's private key. The system may have multiple private key generators, each with a separate set of public parameters. Directory services may be used to provide a sender that is associated with one private key generator with appropriate public parameters to use when encrypting messages for a receiver that is associated with a different private key generator. A certification authority may be used to sign directory entries for the directory service. A clearinghouse may be used to avoid duplicative directory entries.

Identity-Based-Encryption Messaging System

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US Patent:
7571321, Aug 4, 2009
Filed:
Mar 14, 2003
Appl. No.:
10/390058
Inventors:
Guido Appenzeller - Menlo Park CA, US
Matthew J Pauker - Menlo Park CA, US
Terence Spies - Palo Alto CA, US
Rishi R Kacker - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 9/00
H04L 9/32
US Classification:
713171, 726 3
Abstract:
A system is provided that uses identity-based encryption to support secure communications between senders and recipients over a communications network. Private key generators are used to provide public parameter information. Senders encrypt messages for recipients using public keys based on recipient identities and using the public parameter information as inputs to an identity-based encryption algorithm. Recipients use private keys to decrypt the messages. There may be multiple private key generators in the system and a given recipient may have multiple private keys. Senders can include private key identifying information in the messages they send to recipients. The private key identifying information may be used by the recipients to determine which of their private keys to use in decrypting a message. Recipients may obtain the correct private key to use to decrypt a message from a local database of private keys or from an appropriate private key server.

Identity-Based-Encryption System With Hidden Public Key Attributes

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US Patent:
7580521, Aug 25, 2009
Filed:
Jun 25, 2003
Appl. No.:
10/606432
Inventors:
Terence Spies - Palo Alto CA, US
Rishi R. Kacker - Menlo Park CA, US
Guido Appenzeller - Menlo Park CA, US
Matthew J. Pauker - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 9/00
US Classification:
380 44, 380281, 380282, 380284
Abstract:
A system is provided that uses identity-based encryption (IBE) to allow a sender to securely convey information in a message to a recipient over a communications network. IBE public key information may be used to encrypt messages and corresponding IBE private key information may be used to decrypt messages. Information on which IBE public key information was used in encrypting a given message may be provided to the message recipient with the message. Multiple IBE public keys may be used to encrypt a single message. A less sensitive IBE public key may be used to encrypt a more sensitive public key, so that the more sensitive public key can remain hidden as it is sent to the recipient.

Secure Message System With Remote Decryption Service

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US Patent:
7698745, Apr 13, 2010
Filed:
Jul 30, 2007
Appl. No.:
11/888290
Inventors:
Matthew J. Pauker - San Francisco CA, US
Rishi R. Kacker - Woodside CA, US
Terence Spies - San Mateo CA, US
Lucas C. Ryan - San Francisco CA, US
Guido Appenzeller - Menlo Park CA, US
Assignee:
Voltage Security, Inc. - Palo Alto CA
International Classification:
H04L 29/00
US Classification:
726 27, 713165
Abstract:
Systems and methods for secure messaging are provided. A sender may encrypt content and send the encrypted content to a recipient over a communications network. The encrypted content may be decrypted for the recipient using a remote decryption service. Encrypted message content may be placed into a markup language form. Encrypted content may be incorporated into the form as a hidden form element. Form elements for collecting recipient credential information such as username and password information may also be incorporated into the form. At the recipient, the recipient may use the form to provide recipient credential information to the remote decryption service. The recipient may also use the form to upload the encrypted content from the form to the decryption service. The decryption service may provide the recipient with access to a decrypted version of the uploaded content over the communications network.
Rishi R Kacker from Menlo Park, CA, age ~43 Get Report