diff options
Diffstat (limited to 'src/Core')
| -rw-r--r-- | src/Core/VolumeCreator.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/Core/VolumeCreator.cpp b/src/Core/VolumeCreator.cpp index d5caa846..5f19a66d 100644 --- a/src/Core/VolumeCreator.cpp +++ b/src/Core/VolumeCreator.cpp @@ -298,6 +298,11 @@ namespace VeraCrypt // Master data key MasterKey.Allocate (options->EA->GetKeySize() * 2); RandomNumberGenerator::GetData (MasterKey); + // check that first half of MasterKey is different from its second half. If they are the same, through an exception + // cf CCSS,NSA comment at page 3: https://csrc.nist.gov/csrc/media/Projects/crypto-publication-review-project/documents/initial-comments/sp800-38e-initial-public-comments-2021.pdf + if (memcmp (MasterKey.Ptr(), MasterKey.Ptr() + MasterKey.Size() / 2, MasterKey.Size() / 2) == 0) + throw AssertionFailed (SRC_POS); + headerOptions.DataKey = MasterKey; // PKCS5 salt |