UDF Code Attestation and Integrity Verification

The patent introduces a code attestation mechanism as an intermediary between the user and the execution system. The attestation service verifies code integrity and authenticity before execution, acting as a trusted mediator that enables remote execution while maintaining security. The service uses cryptographic signatures and attestation tokens to ensure the executed code matches the submitted code without requiring the user to directly control the execution environment.

The patent uses cryptographic hash values as unique identifiers (analogous to color changes for identification) for each version of UDF code. Each code version is associated with a unique hash value that serves as its fingerprint, enabling clear identification and tracking of specific versions. The attestation mechanism includes version information in the attestation token, ensuring that the executed version matches the intended version without ambiguity.

The patent implements preliminary security actions before code execution. The attestation service performs verification of code integrity, authenticity, and authorization status before the code is executed on remote resources. The system checks digital signatures, validates attestation tokens, and confirms user authorization in advance, preventing unauthorized access and malicious code execution before they can occur.