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comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
@Xen2050 I assumed that was background to the question, not the question itself. The error is a problem regardless of why he wants to do it. The title also indicates such. I would suggest leaving this question open, minus the "unencrypted files in memory" part, to seek a resolution to the 0x8000000a error. Then open a new question for the data security portion.
Jan
31
comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
@Xen2050 The problem with any RAMdisk is that RAM contents can be paged. Even if you use a TrueCrypt container, the application reading the file could have chunks of its memory paged out. You really need FDE (full disk encryption) in this situation.
Jan
31
comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
@Xen2050 It's not an answer because it doesn't directly address the problem as stated. The question is about a Windows Live Photo Gallery error, not data security. If JohnSonderson wants to ask the question "How to securely view files from an encrypted archive" I'd be happy to try my hand at answering it.
Jan
31
comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
Does the error happen when you create the same archive but without using encryption?
Jan
31
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Jan
31
comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
You could simply encrypt your system disk, e.g., with BitLocker or TrueCrypt. This would be the best option if you're really worried about data security. Then you wouldn't need to worry about your %TEMP% folder at all, as all temporary files would be stored encrypted on-disk. On modern CPUs, the performance hit for system disk encryption is under 1% or 2%, very acceptable for the kind of security you want.
Jan
31
comment 7-Zip: Opening image from 7z archive produces error code 0x8000000a
7-Zip will not let you "read unencrypted files from memory." It will write the image to a temporary directory under %TEMP%, and delete it when the application closes. If 7-Zip is closed before the viewing application, it may be left behind on disk. In order to view encrypted archive files from memory, you would need an archiver capable of streaming the bytes directly to a viewer application capable of reading such a stream. Neither 7-Zip nor Windows Photo Viewer are capable of this. This information isn't directly related to the issue you are having, but something you should be aware of.
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