Hold a requester reference until header parsing can no longer enqueue KDFs.
This prevents stale completion signals from allowing cleanup while workers
still use request-owned state.
Add bounded tests of the production pool and caller completion protocol.
Capture the parent before releasing a fragment slot on Windows and Unix.
This removes the completion code's dependency on the first-fragment slot
holding up the ring until the requester observes completion.
Argon2id includes the requested output length in its computation, so deriving 192 bytes and using a prefix is not equivalent to deriving only the selected cipher's key material length. This differs from PBKDF2, where the prefix property made this detail invisible.
VeraCrypt derives the maximum header key material currently needed by the supported cipher/cascade set, which is 192 bytes, and then uses the required prefix for the selected encryption algorithm. For AES-XTS this means the first 64 bytes of the 192-byte Argon2id output are used.
Make this design rule explicit in code and documentation by introducing ARGON2_HEADER_KEYDATA_SIZE instead of relying implicitly on GetMaxPkcs5OutSize. If a future cipher or cascade requires more than 192 bytes, that must be handled as an explicit format/design change.
Document the 192-byte Argon2id header KDF output requirement so third-party implementations derive the same header key material.
References: https://github.com/veracrypt/VeraCrypt/issues/1614
- Replace dynamic GetProcAddress usage with direct SetThreadGroupAffinity call since we run under Windows 10 minimum
- Compute affinity mask based on actual active processor count
- Fix off-by-one when assigning threads to processor groups (use > instead of >=), preventing premature group advance
- Improves correctness on multi-group (>=64 CPU) systems
* Adding Processor Groups support for more than 64 processors
* Revert " Adding Processor Groups support for more than 64 processors"
This reverts commit e1d5fe0a55.
* Adding Processor Groups support for >64 logical processors
Mounir IDRASSI
Mounir IDRASSI
techvintageandGitHub
David Foerster