VeraCrypt
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Diffstat (limited to 'src/Common/Volumes.c')
-rw-r--r--src/Common/Volumes.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/Common/Volumes.c b/src/Common/Volumes.c
index 2bd870b..c88e81d 100644
--- a/src/Common/Volumes.c
+++ b/src/Common/Volumes.c
@@ -163,7 +163,7 @@ typedef struct
BOOL ReadVolumeHeaderRecoveryMode = FALSE;
-int ReadVolumeHeader (BOOL bBoot, char *encryptedHeader, Password *password, PCRYPTO_INFO *retInfo, CRYPTO_INFO *retHeaderCryptoInfo)
+int ReadVolumeHeader (BOOL bBoot, char *encryptedHeader, Password *password, int selected_pkcs5_prf, PCRYPTO_INFO *retInfo, CRYPTO_INFO *retHeaderCryptoInfo)
{
char header[TC_VOLUME_HEADER_EFFECTIVE_SIZE];
KEY_INFO keyInfo;
@@ -198,7 +198,8 @@ int ReadVolumeHeader (BOOL bBoot, char *encryptedHeader, Password *password, PCR
return ERR_OUTOFMEMORY;
}
- if (encryptionThreadCount > 1)
+ /* use thread pool only if no PRF was specified */
+ if ((selected_pkcs5_prf == 0) && (encryptionThreadCount > 1))
{
keyDerivationWorkItems = TCalloc (sizeof (KeyDerivationWorkItem) * pkcs5PrfCount);
if (!keyDerivationWorkItems)
@@ -241,7 +242,11 @@ int ReadVolumeHeader (BOOL bBoot, char *encryptedHeader, Password *password, PCR
// Test all available PKCS5 PRFs
for (enqPkcs5Prf = FIRST_PRF_ID; enqPkcs5Prf <= LAST_PRF_ID || queuedWorkItems > 0; ++enqPkcs5Prf)
{
- if (encryptionThreadCount > 1)
+ // if a PRF is specified, we skip all other PRFs
+ if (selected_pkcs5_prf != 0 && enqPkcs5Prf != selected_pkcs5_prf)
+ continue;
+
+ if ((selected_pkcs5_prf == 0) && (encryptionThreadCount > 1))
{
// Enqueue key derivation on thread pool
if (queuedWorkItems < encryptionThreadCount && enqPkcs5Prf <= LAST_PRF_ID)
@@ -529,7 +534,7 @@ ret:
VirtualUnlock (&dk, sizeof (dk));
#endif
- if (encryptionThreadCount > 1)
+ if ((selected_pkcs5_prf == 0) && (encryptionThreadCount > 1))
{
TC_WAIT_EVENT (noOutstandingWorkItemEvent);