diff --git a/ChangeLog b/ChangeLog
index 7372ad2..a636019 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+20131109
+ - (dtucker) OpenBSD CVS Sync
+   - dtucker@cvs.openbsd.org 2013/11/09 05:41:34
+     [regress/test-exec.sh regress/rekey.sh]
+     Use smaller test data files to speed up tests.  Grow test datafiles
+     where necessary for a specific test.
+
 20131108
  - (dtucker) OpenBSD CVS Sync
     - dtucker@cvs.openbsd.org 2013/11/08 01:06:14
@@ -32,6 +39,11 @@
  - (dtucker) [contrib/cygwin/ssh-host-config] Simplify host key generation:
    rather than testing and generating each key, call ssh-keygen -A.
    Patch from vinschen at redhat.com.
+ - (dtucker) OpenBSD CVS Sync
+   - dtucker@cvs.openbsd.org 2013/11/09 05:41:34
+     [regress/test-exec.sh regress/rekey.sh]
+     Use smaller test data files to speed up tests.  Grow test datafiles
+     where necessary for a specific test.
 
 20131107
  - (djm) [ssh-pkcs11.c] Bring back "non-constant initialiser" fix (rev 1.5)
diff --git a/regress/rekey.sh b/regress/rekey.sh
index 6095da8..fe81f0c 100644
--- a/regress/rekey.sh
+++ b/regress/rekey.sh
@@ -1,4 +1,4 @@
-#	$OpenBSD: rekey.sh,v 1.12 2013/11/08 01:06:14 dtucker Exp $
+#	$OpenBSD: rekey.sh,v 1.13 2013/11/09 05:41:34 dtucker Exp $
 #	Placed in the Public Domain.
 
 tid="rekey"
@@ -26,6 +26,8 @@
 	fi
 }
 
+increase_datafile_size 300
+
 opts=""
 for i in `${SSH} -Q kex`; do
 	opts="$opts KexAlgorithms=$i"
diff --git a/regress/test-exec.sh b/regress/test-exec.sh
index eee4462..aac8aa5 100644
--- a/regress/test-exec.sh
+++ b/regress/test-exec.sh
@@ -1,4 +1,4 @@
-#	$OpenBSD: test-exec.sh,v 1.46 2013/06/21 02:26:26 djm Exp $
+#	$OpenBSD: test-exec.sh,v 1.47 2013/11/09 05:41:34 dtucker Exp $
 #	Placed in the Public Domain.
 
 #SUDO=sudo
@@ -133,7 +133,12 @@
 # Path to sshd must be absolute for rexec
 case "$SSHD" in
 /*) ;;
-*) SSHD=`which sshd` ;;
+*) SSHD=`which $SSHD` ;;
+esac
+
+case "$SSHAGENT" in
+/*) ;;
+*) SSHAGENT=`which $SSHAGENT` ;;
 esac
 
 # Logfiles.
@@ -166,14 +171,22 @@
 
 # Some test data.  We make a copy because some tests will overwrite it.
 # The tests may assume that $DATA exists and is writable and $COPY does
-# not exist.
+# not exist.  Tests requiring larger data files can call increase_datafile_size
+# [kbytes] to ensure the file is at least that large.
 DATANAME=data
 DATA=$OBJ/${DATANAME}
-cat $SSHD $SSHD $SSHD $SSHD >${DATA}
+cat ${SSHAGENT} >${DATA}
 chmod u+w ${DATA}
 COPY=$OBJ/copy
 rm -f ${COPY}
 
+increase_datafile_size()
+{
+	while [ `du -k ${DATA} | cut -f1` -lt $1 ]; do
+		cat ${SSHAGENT} >>${DATA}
+	done
+}
+
 # these should be used in tests
 export SSH SSHD SSHAGENT SSHADD SSHKEYGEN SSHKEYSCAN SFTP SFTPSERVER SCP
 #echo $SSH $SSHD $SSHAGENT $SSHADD $SSHKEYGEN $SSHKEYSCAN $SFTP $SFTPSERVER $SCP