Combining Cryptographic Calls in Emulated Media Encryption
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Solution Overview
Problem
Conventional systems for media encryption and decryption in emulated environments face performance deficiencies and security vulnerabilities due to the need for multiple calls through interfaces to the host operating system, leading to increased delay and memory overhead, making them susceptible to advanced security threats.
Innovation Solution
Combining multiple related calls for setting up secure media encryption and decryption into a single call, which includes creating a cryptography context, generating and storing encryption keys, computing hash subkeys, initializing vectors, and creating cipher instances, thereby reducing the number of interface calls and enhancing security and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple related calls are made through the interface to set up secure media encryption, then security functionality is achieved, but execution speed degrades and memory overhead increases
Solution Approach 1:
The patent combines multiple related calls (create cryptography context, generate encryption key, compute hash subkey, store hash subkey, compute initialization vector, create cipher instance) into a single atomic call to the security module. This merging eliminates repeated interface translations and data movements, achieving both security functionality and improved execution speed by reducing the number of system calls and memory accesses required.
2Reliability
If multiple related calls are made through the interface to set up secure media encryption, then security functionality is achieved, but memory overhead increases
Solution Approach 1:
The patent merges multiple related calls into a single atomic call, which reduces the total number of data structures created and memory allocations performed. By consolidating the setup operations into one call, the system eliminates redundant memory overhead associated with multiple interface calls while maintaining complete security functionality.
3Reliability
If multiple related calls are made through the interface to set up secure media encryption, then security functionality is achieved, but the application becomes vulnerable to advanced security threats
Solution Approach 1:
The patent combines multiple related calls into a single atomic call to the security module. This reduces the attack surface by minimizing the number of interface entry points that could be exploited. By consolidating operations, the system reduces exposure to timing attacks, side-channel attacks, and other vulnerabilities that arise from multiple sequential calls, thereby maintaining security functionality while reducing vulnerability to advanced security threats.
4Reliability
If multiple related calls are made through the interface to set up secure media encryption, then security functionality is achieved, but interface translation overhead increases
Solution Approach 1:
The patent merges multiple related calls into a single atomic call, which eliminates repeated interface translation operations. The interface component performs translation only once for the combined call rather than multiple times for individual calls, reducing translation overhead and simplifying the interaction between the emulated environment and host operating system security modules.
Data Source
AI summary
Systems and methods for enhanced security of media are provided. Media security may be enhanced by improving the setup of encryption and/or decryption, by improving the performance of encryption and/or decryption, or by improving both. The calls related to enhanced security of media from an application in an emulated environment to a security module in the operating system hosting the emulated environment may be combined to reduce the overhead of accessing a security module. An application handling secure shell (SSH) communications may execute multiple calls to a cryptographic module in the host operating system. Because many calls to the cryptographic module during SSH communications follow patterns, two or more related calls may be combined into a single combined call to the cryptographic module. For example, a call to generate a server-to-client key and a call to generate a client-to-server key may be combined into a single call.