Portable Device Redaction Method for Secure Information Sharing
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Solution Overview
Problem
Existing electronic devices lack effective methods to protect sensitive information from unauthorized access while allowing authorized users to view the information, necessitating improvements in information protection mechanisms.
Innovation Solution
The method involves identifying and redacting sensitive portions of information on a portable electronic device, extracting and encrypting these portions, storing them with location identifiers, and sending the redacted information along with the encrypted portions to a recipient device, where they can be decrypted using a passphrase or key to restore the original information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redaction of information is applied to protect sensitive data, then information security is improved, but the utility and completeness of information for authorized users deteriorates
Solution Approach 1:
The information is segmented into two distinct versions: a redacted version for general distribution and an unredacted version for authorized users. The redaction application identifies sensitive portions and creates a redacted version, while separately maintaining or providing access to the original unredacted version for authorized individuals, thus resolving the contradiction between security and completeness
Solution Approach 2:
Different portions of the information have different access qualities. The redaction application selectively applies redaction only to sensitive portions while leaving non-sensitive portions intact in the redacted version. Authorized users can access the full unredacted version, creating local quality differences in information accessibility based on user authorization status
2Reliability
If both redacted and unredacted versions of information are maintained, then information security is improved, but device complexity and storage requirements worsen
Solution Approach 1:
Instead of maintaining both full versions simultaneously, the redaction application extracts only the sensitive portions from the original information and creates a redacted version by removing or obscuring these extracted portions. This extraction approach reduces the amount of data that needs to be managed while maintaining security
Solution Approach 2:
The redaction application performs preliminary identification and extraction of sensitive portions before finalizing the redacted version. This preliminary action allows the system to prepare security measures in advance and efficiently manage the information versions without requiring complex real-time processing
3Reliability
If redacted information is transmitted to recipients, then information security is improved, but the amount of data transmitted and bandwidth consumption worsen
Solution Approach 1:
The redaction application extracts and removes sensitive portions from the information before transmission. By taking out only the problematic sensitive data elements rather than transmitting the entire dataset, the system reduces data volume while maintaining security
Solution Approach 2:
Instead of transmitting the complete unredacted version (excessive action) or only redacted versions (partial action), the system transmits redacted versions that contain only the necessary non-sensitive information, avoiding the excessive data transmission of full versions while maintaining adequate information utility
Data Source
AI summary
A method of providing information for display, from a portable electronic device, includes displaying information on a display of the portable electronic device, identifying a portion for redacting from the information displayed on the display of the portable electronic device, extracting the portion from the information to provide redacted information and an extracted portion, storing the redacted information, protecting and storing the extracted portion in association with a location identification in a file, and sending the redacted information and sending the file including extracted portions associated with the location identifiers.