Improve Data Handling in WriteEncryptedFile

[campeon23]

Description: The current sequence in WriteEncryptedFile involves writing the original data and then encrypting that data in place. This method poses a risk since plaintext data could potentially remain on the disk.

Recommendation: Encrypt data in memory first and subsequently write the encrypted data directly to the disk. This process minimizes the risk of exposing plaintext content.

Example Fix:

func WriteEncryptedFile(data []byte, key []byte, filePath string) error {
    encryptedData, err := encryptDataInMemory(data, key)
    if err != nil {
        return err
    }
    return ioutil.WriteFile(filePath, encryptedData, 0644)
}

Acceptance Criteria:

• Refactor the WriteEncryptedFile function to adopt the recommended sequence.
• Test the new implementation for effectiveness and security.
• Update relevant documentation and ensure team members are informed.

Severity Level: Medium

[campeon23]

Closing ticket "Refactor WriteEncryptedFile Sequence". Won't do!

Rationale: Upon review, it has been determined that the function in question, WriteEncryptedFile, is solely used for testing purposes and handles mock data. The data passed for encryption within this context is not sensitive or real-world applicable. Given this context, the potential risk described is deemed non-impactful, and the suggested changes are unnecessary at this juncture.

If there are any further concerns or clarifications needed, please do not hesitate to raise a new ticket or discussion topic. Thank you for your diligence and ensuring our processes remain secure.