Capital One Services, LLC

Hao Cheng

Rohit Joshi

Ashish Gupta

Lan Xie

Marek Bazler

Bharath Bhushan Sreeravindra

Michael James Caughey

Andrew Berger

Methods and systems disclosed herein describe tokenizing data to generate a secure token that is limited in scope (e.g., directed to a specific recipient) and limited in time (e.g., valid for only a specified period of time). A detokenization process may be employed to recover encrypted data of the secure token without the need for any relational database lookup processes, thereby reducing cost while maintaining robust protection against unintended recipients that attempt to recover the encrypted data.

Secure data exchange using format-preserving encryption

Systems and methods, as described herein, may comprise and/or utilize data governance systems to enable end-to-end encrypted communications between an organization and third parties as well as between systems internal to the organization. The data governance systems may enforce compliance with an organization's data governance policies, as well as various laws, rules, and/or policies, for encrypted communications and/or other encrypted data payloads.

Cryptography-as-a-service

Disclosed herein are system, method, and computer program product embodiments for vaultless tokenization. Alphanumeric values may be determined based on numeric values generated from a hash of numeric user information shuffled through a plurality of randomly generated alphanumeric tables. The numeric user information and the alphanumeric values may be used to generate a table index. Shuffled numeric user information may be generated based on the table index and a plurality of randomly generated numeric tables, and transformed to alphanumeric user information (e.g., via format-preserving encryption, additive cipher, etc.). Each character of the alphanumeric user information may be shuffled through a different alphanumeric table of the plurality of alphanumeric tables identified for the character based on the table index. Moreover, an alphanumeric token may be generated based on the shuffled characters of the alphanumeric user information.

Vaultless tokenization

Disclosed are systems and methods for adaptive partitioning of memory and storage resources of a first cluster node of a cluster system, comprising a plurality of nodes; wherein the first node includes one or more shards; and a client device in data communication with the plurality of nodes, wherein the first node is configured to: receive a client request, identify one of the one or more shards based on the client request, retrieve shard rules of the identified shard, determine an allocation of one or more memory slots of the identified shard based on the client request, lock the one or more memory slots, and perform one or more operations on the one or more memory slots associated with the client request based on the allocation.

Systems and methods for adaptive data partitioning within cluster systems

Techniques for protecting data using two password asymmetric encryption based on time-constrained password-based partner tokens. To encrypt data, a first partner computing device receives a first partner token from a second computing device. The first partner computing device decrypts the first partner token to recover first public key data generated by the second partner computing device. The first partner computing device derives a cryptographic encryption key to encrypt the data based on the first public key data, and based on first private key data generated by the first partner computing device. The second computing device may decrypt the encrypted data based on a second partner token generated by the first partner computing device, using a cryptographic decryption key derived using second private key data generated by the second computing device and second public key data generated by the first computing device and embedded and encrypted in the second partner token.

Data protection with two password asymmetric encryption

Methods and systems disclosed herein describe obfuscating plaintext cryptographic material stored in memory. A random location in an obfuscation buffer may be selected for each byte of the plaintext cryptographic material. The location of each byte of the plaintext cryptographic material may be stored in a position tracking buffer. To recover the scrambled plaintext cryptographic material, the location of each byte of the plaintext cryptographic material may be read from the position tracking buffer. Each byte of the plaintext cryptographic material may then be read from the obfuscation buffer and written to a temporary buffer. When each byte of the plaintext cryptographic material is recovered, the plaintext cryptographic material may be used to perform one or more cryptographic operations. The scrambling techniques described herein reduce the likelihood of a malicious user recovering plaintext cryptographic material while stored in memory.

Obfuscating cryptographic material in memory

Disclosed herein are system, method, and computer program product embodiments for processing tokenization requests in-memory of an application server. Reliance on remote devices, such as hardware security modules, is reduced because functions associated with processing tokenization requests is performed at the application server instead of the remote devices. Applicant server includes a multi-level cache for storing and accessing data for generating, hashing, and encrypting tokens in response to tokenization requests received from client devices.

Growing community of inventors

Oakton, VA, United States of America

Hao Cheng