From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Sun, 17 Oct 2010 23:17:40 +0000 (-0700)
Subject: When decrypting a log item also clear out the IV field.
X-Git-Url: http://git.vrable.net/?p=bluesky.git;a=commitdiff_plain;h=e8d8d9a530c94f1fabc43c0222212296732fa874

When decrypting a log item also clear out the IV field.

Not really needed, but this way the IV field being zero should be
synonymous with an unencrypted log item.
---

diff --git a/bluesky/crypto.c b/bluesky/crypto.c
index 1dc5e0d..f34b8b7 100644
--- a/bluesky/crypto.c
+++ b/bluesky/crypto.c
@@ -244,6 +244,7 @@ gboolean bluesky_crypt_block_decrypt(gchar *cloud_block, size_t len,
                     gcry_strerror(status));
         }
         header->magic[3] ^= 0x10;
+        memset(header->crypt_iv, 0, sizeof(header->crypt_iv));
 
         gcry_cipher_close(handle);
     }