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This password specifically refers to "Password to Modify" and Excel 2019 / 365 clearly warn in the reenter password popup: > Caution: Password to modify is not
by sheetjs 4y ago
This password specifically refers to "Password to Modify" and Excel 2019 / 365 clearly warn in the reenter password popup:
> Caution: Password to modify is not a security feature. ... Malicious users can edit the file and remove the password.
This type of "protection" is also present in the VBA blobs (where you can change a few bytes and work around the VBA protection)
Saving a file with a password to open actually employs encryption. The exact setting can be tuned with registry settings, but is typically AES-128-CBC.
Saving a file as "read-only" encrypts the file with the standard password "VelvetSweatshop"
- bbkane 4y agoHuh? I wonder where that default password came from
- sheetjs 4y agoA Seattle Times article from 1989: > Inside Microsoft – A ‘Velvet Sweatshop’ or a High-Tech Heaven? https://www.seattletimes.com/business/archive-inside-microsoft-a-velvet-sweatshop-or-a-high-tech-heaven/ https://www.seattletimes.com/business/archive-inside-microso...
- userbinator 4y agoIn other words, not much different from PDF's permissions feature.
- SeriousM 4y agoDoes PDF has a default password?
- userbinator 4y ago28 BF 4E 5E 4E 75 8A 41 64 00 4E 56 FF FA 01 08 2E 2E 00 B6 D0 68 3E 80 2F 0C A9 FE 64 53 69 7A More like a default key, I suppose.