US 11,057,215 B1 · Automated hash validation

Abstract

Techniques for performing hash validation are provided. In one technique, a signature request that includes a first hash and a data identifier is received from a client. In response, the data identifier is identified and sent to a data repository, data that is associated with the data identifier is received from the data repository, a second hash is generated based on the data, and a determination is made whether the second hash matches the first hash. If the two hashes match, then the first hash is sent to a cryptographic device that generates a digital signature, which is eventually transmitted to the client. Alternatively, the digital signature is transmitted to the client prior to the first hash being validated. In a related technique, a server receives the signature request and sends the data identifier to a hash validator, which interacts with the data repository and generates the second hash.

Claims21

Dependent claims

A method comprising:

receiving, from a client, a signature request that includes a first hash and a data identifier;
in response to receiving the signature request:
identifying the data identifier;
sending the data identifier to a data repository;
receiving, from the data repository, data that is associated with the data identifier;
generating, based on the data, a second hash;
determining whether the second hash matches the first hash;
sending the first hash to a cryptographic device that stores a private key;
wherein the cryptographic device generates a digital signature based on the first hash and the private key;
after sending the first hash to the cryptographic device, receiving the digital signature from the cryptographic device;
wherein the method is performed by one or more computing devices.

8 more elements

Dependencies are inferred from the claim text.

Automated hash validation

Life of this patent

Automated hash validation

Life of this patent

Abstract

Claims21