1 files changed, 6 insertions, 0 deletions
diff --git a/cipher/cipher-internal.h b/cipher/cipher-internal.h
index 80e7c092..9fd1d91f 100644
--- a/cipher/cipher-internal.h
+++ b/cipher/cipher-internal.h
@@ -274,10 +274,16 @@ struct gcry_cipher_handle
          checksum of the data.  */
       unsigned char aad_sum[OCB_BLOCK_LEN];
 
+      /* A buffer to store AAD data not yet processed.  */
+      unsigned char aad_leftover[OCB_BLOCK_LEN];
+
       /* Number of data/aad blocks processed so far.  */
       u64 data_nblocks;
       u64 aad_nblocks;
 
+      /* Number of valid bytes in AAD_LEFTOVER.  */
+      unsigned char aad_nleftover;
+
       /* Length of the tag.  Fixed for now but may eventually be
          specified using a set of gcry_cipher_flags.  */
       unsigned char taglen;