Secure Email Attachment Optimization for Wireless Devices
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Solution Overview
Problem
Existing systems for sending secure e-mail messages to wireless devices often waste resources by sending content that exceeds the device's capabilities, and maintaining content integrity is challenging, especially for encrypted messages.
Innovation Solution
A server-based system that determines the resource parameters of the wireless device and re-scales or optimizes attached content, such as images or documents, to match the device's capabilities before sending, ensuring secure delivery and verification while conserving resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the original content is sent to the wireless device, then the content integrity is maintained, but the resource consumption increases and the content may exceed device capabilities
Solution Approach 1:
The server performs content optimization in advance before transmission to the wireless device. The server determines device capabilities, optimizes the content format and size, and prepares the optimized content ready for delivery. This preliminary action ensures that when the content is transmitted, it is already adapted to the device's capabilities, avoiding the need for the device to handle oversized or incompatible content formats.
Solution Approach 2:
The server changes the parameters of the attached content based on the wireless device's capabilities. This includes adjusting image resolution, compressing video files, converting document formats, or resizing attachments to match the device's screen resolution, processing power, and storage constraints. By dynamically changing content parameters, the system maintains content integrity while adapting it to the specific device's resource constraints.
2Manufacturing precision
If the original content is sent to the wireless device, then the content quality is preserved, but the transmission time and network resources increase
Solution Approach 1:
The server adjusts content parameters such as image resolution, video bitrate, and file compression based on the wireless device's display capabilities and network conditions. This optimization reduces file size and transmission time while maintaining visual quality at the device's native resolution, thereby preserving perceptual content quality without the overhead of transmitting unnecessarily high-resolution data.
Solution Approach 2:
The server performs content optimization and format conversion before transmission, preparing the content in advance in a format suitable for the wireless device. This preliminary processing reduces the time required for transmission and initial rendering on the device, as the content is already optimized for the target platform's capabilities.
3Productivity
If content optimization is performed, then the resource efficiency improves, but the system complexity increases
Solution Approach 1:
The server acts as an intermediary between the content source and the wireless device. It receives the original content, determines the device's capabilities, performs the necessary optimization and format conversion, and delivers the optimized content to the device. This intermediary approach centralizes the complexity in the server environment where powerful processing resources are available, rather than requiring complex optimization capabilities in every wireless device.
Solution Approach 2:
The server creates an optimized copy of the original content tailored to the wireless device's capabilities. Instead of requiring the device to handle the original high-resolution content, the server generates a device-specific copy with appropriate resolution, format, and compression. This copying approach maintains the original content for archival purposes while providing optimized versions for specific devices, balancing resource efficiency with system simplicity.
4Reliability
If secure e-mail messages are sent with attachments, then the security is maintained, but the resource consumption and transmission overhead increase
Solution Approach 1:
The server performs content optimization before the secure transmission process. By optimizing the attached content in advance based on the wireless device's capabilities, the server reduces the size of files that need to be encrypted and transmitted. This preliminary optimization reduces the computational resources required for encryption and transmission while maintaining the security of the e-mail message.
Data Source
AI summary
A system, method and apparatus are provided for secure e-mail message attachment optimization. Content attached to e-mail messages may not be suited to the resource constraints of the destination wireless device. In secure e-mail messages, the message may be signed and/or encrypted. A wireless server can determine resource parameters associated with a destination wireless device, such as display resolution, memory capacity, processor speed, and wireless interface constraints and re-scale the attached content to be optimized for delivery and presentation on the wireless device.