End-to-end transport layer security

ChangeBridge: Patent Grants - Networking (H04L)

Published April 7th, 2026

Detected April 8th, 2026

Summary

The USPTO granted Wells Fargo Bank, N.A. Patent US12598059B1 for end-to-end transport layer security. The invention covers methods for establishing session keys between start, end, and intermediate nodes for data encryption and MAC generation, with encrypted data relayed without intermediate node re-encryption. This is a standard patent grant conferring exclusive rights to the assignee.

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What changed

The USPTO issued Patent US12598059B1 to Wells Fargo Bank, N.A. for cryptographic methods enabling end-to-end transport layer security. The patent covers session key establishment between communicating nodes and secure data relay through intermediate nodes without re-encryption. The invention includes data encryption session keys and MAC session keys for authenticating communications.

Affected parties in the banking and technology sectors should monitor this patent for potential licensing requirements or competitive implications in network security implementations. The patent may influence secure communications architecture decisions for financial institutions and technology companies developing encrypted data transmission systems.

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Source document (simplified)

← USPTO Patent Grants

End-to-end transport layer security

Grant US12598059B1 Kind: B1 Apr 07, 2026

Assignee

Wells Fargo Bank, N.A.

Inventors

Jeffrey J. Stapleton

Abstract

The present disclosure relate to exchanging information between a start node and an end node. Based on the information session keys for a connection comprising the start node, the end node, and at least one intermediate node are established. The session keys include a data encryption session key and a Message Authentication Code (MAC) session key. The data is encrypted using the data encryption session key at the start node. MAC is generated using the MAC session key. The encrypted data is relayed, via the at least one intermediate node, from the start node to the end node without the at least one intermediate node re-encrypting the data.

CPC Classifications

H04L 63/0428 H04L 63/08 H04L 63/061 H04L 67/02 H04L 67/306 H04L 63/0861 H04L 63/102 H04L 65/60 H04L 9/0819 G06F 21/10 G06F 21/602 G06F 2221/2107 G06F 17/30867 G06F 21/105 H04N 21/4627 H04N 21/84 H04N 21/2353 H04N 21/2387 H04N 21/25816 H04N 21/233 H04N 21/23439 H04N 21/2393 H04N 21/4126 H04N 21/41407 G06N 3/08