Digital signature-over-voice for caller ID verification

Patent metadata

Field	Value
Publication number	US-9641675-B2
Application number	US-201615364949-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Aug 3, 2015
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

In an approach to caller ID verification by digital signature, a computing device receives authenticating information associated with a caller. The computing device creates a call record based on the authenticating information. The computing device retrieves additional information associated with the caller. The computing device updates the call record based on the additional information. The computing device retrieves a digital signature associated with the caller. The computing device retrieves public key information associated with the caller. The computing device performs a digital signature assessment based on the public key information. The computing device updates the call record based on the digital signature assessment. The computing device adds timestamp information to the call record. The computing device receives a request from a call recipient device. The computing device communicates information based on the call record to the call recipient device. The computing device marks the call record as expired.

First claim

What is claimed is:

1. A computer program product for verifying an identity of a caller, the computer program product comprising:
one or more non-transitory computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising:
program instructions to receive authenticating information associated with a caller, wherein the authenticating information comprises a password, caller ID (identification), a caller phone number, a recipient phone number, and a URL (uniform resource locator);
wherein the URL information comprises a TinyURL;
program instructions to create a call record based on the authenticating information;
program instructions to retrieve additional information associated with the caller;
program instructions to update the call record based on the additional information associated with the caller;
program instructions to retrieve based on interfacing with the URL, a digital signature associated with the caller;
program instructions to retrieve public key information associated with the caller;
program instructions to perform a digital signature assessment based on the public key information, wherein the digital signature assessment comprises a determination that the digital signature is valid, not valid, or unverifiable;
program instructions to update the call record based on the digital signature assessment;
program instructions to add timestamp information to the call record; program instructions to receive a request from a call recipient device;
program instructions to communicate information based on the call record to the call recipient device; and
program instructions to mark, after a predefined length of time from the addition of the timestamp, the call record as expired.

Assignees

• IBM

Inventors

• Yaung Alan T
• Yi Ang

Classifications

• H04M1/665

  by checking the validity of a code · CPC title

• H04W12/06

  Authentication · CPC title

• H04M3/42076

  where the identifier is a Uniform Resource Locator · CPC title

• H04M3/2281

  Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls · CPC title

• H04M3/42042

  Notifying the called party of information on the calling party (details within substation equipment H04M1/57, signalling details H04Q3/72) · CPC title