commit b94f9f92c579b723a16be72a69efbbf9c35ce44e
author DavidWooten <david.wooten@ieee.org> Thu Sep 03 12:38:08 2020 -0400
committer DavidWooten <david.wooten@ieee.org> Thu Sep 03 12:38:08 2020 -0400
tree 45668eaa3d5a14dbef8486e60de8f728ea1b0a07
parent 6d2bd3223657650d9490d5f898ea969675df3953

Fixed RSAES_Dedoce() so that it would not accept a pad that was less than 8 bytes.

TPMCmd/tpm/src/crypt/CryptRsa.c

diff --git a/TPMCmd/tpm/src/crypt/CryptRsa.c b/TPMCmd/tpm/src/crypt/CryptRsa.c
index b42322f..1d8b1e9 100644
--- a/TPMCmd/tpm/src/crypt/CryptRsa.c
+++ b/TPMCmd/tpm/src/crypt/CryptRsa.c
@@ -563,7 +563,7 @@
     // Make sure that pSize has not gone over the end and that there are at least 8

     // bytes of pad data.

     fail = (pSize > coded->size) | fail;

-    fail = ((pSize - 2) < 8) | fail;

+    fail = ((pSize - 2) <= 8) | fail;

     if((message->size < (UINT16)(coded->size - pSize)) || fail)

         return TPM_RC_VALUE;

     message->size = coded->size - pSize;