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Reset PIM defaults when changing volume KDF

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A SourceForge report pointed out that the password-change and header-KDF dialogs reused the current custom PIM when the user selected a different KDF. That was harmless when all choices used the same PBKDF2 PIM scale, but it is wrong with Argon2 because the same numeric PIM has different security and performance meaning.

Avoid silently carrying a custom PIM across KDF changes in both the Windows and wx dialogs. If the new KDF differs from the current one and the user has not explicitly opened the New PIM field, use the default PIM for the selected KDF instead. Keep preserving the current PIM when the KDF is unchanged.

Enable explicit New PIM entry in the header KDF-only flow, warn before resetting an existing custom PIM to the new KDF default, and validate explicitly entered KDF-only PIM values.

Report the new KDF from the Windows dialog as well as the new PIM so favorite volumes update both stored PIM and pinned KDF metadata after password or header KDF changes, including system favorites. Add translation fallbacks, documentation, and release notes for the new behavior.
This commit is contained in:
Mounir IDRASSI
2026-06-11 04:31:46 +09:00
parent e5415498f4
commit 75857757fe
50 changed files with 452 additions and 77 deletions
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Translations/Language.hu.xml
+2
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@@ -1684,6 +1684,8 @@
<entry lang="en" key="MACOSX_APFS_SYSTEM_STORE">The selected APFS physical store '{0}' contains the currently mounted macOS system volume and cannot be used as a VeraCrypt volume host.</entry>
<entry lang="en" key="MACOSX_DEVICE_NOT_WRITABLE">macOS reports the selected device '{0}' as read-only. Select a writable physical partition or disk.</entry>
<entry lang="en" key="MACOSX_APFS_EROFS_HINT">macOS reported the selected device as read-only. If this is an APFS disk, make sure you selected the physical APFS store partition, not an APFS synthesized volume. Use Disk Utility or 'diskutil list' to identify the physical partition, then retry.</entry>
<entry lang="en" key="FAVORITE_PIM_OR_KDF_CHANGED">This volume is registered as a System Favorite and its PIM and/or KDF settings were changed.\nDo you want VeraCrypt to automatically update the System Favorite configuration (administrator privileges required)?\n\nPlease note that if you answer no, you'll have to update the System Favorite manually.</entry>
<entry lang="en" key="PIM_RESET_ON_KDF_CHANGE_CONFIRM">The selected KDF uses different PIM parameters, so VeraCrypt will not reuse the current custom PIM. The new volume header will use the default PIM for the selected KDF unless you select "Use PIM" in the New section and enter a custom value.\n\nDo you want to continue?</entry>
</localization>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="VeraCrypt">