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-rw-r--r--meta/recipes-core/dropbear/dropbear/dropbear-disable-weak-ciphers.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/meta/recipes-core/dropbear/dropbear/dropbear-disable-weak-ciphers.patch b/meta/recipes-core/dropbear/dropbear/dropbear-disable-weak-ciphers.patch
new file mode 100644
index 0000000000..5c60868ed8
--- /dev/null
+++ b/meta/recipes-core/dropbear/dropbear/dropbear-disable-weak-ciphers.patch
@@ -0,0 +1,31 @@
+From c347ece05a7fdbf50d76cb136b9ed45caed333f6 Mon Sep 17 00:00:00 2001
+From: Joseph Reynolds <joseph.reynolds1@ibm.com>
+Date: Thu, 20 Jun 2019 16:29:15 -0500
+Subject: [PATCH] dropbear: new feature: disable-weak-ciphers
+
+This feature disables all CBC, SHA1, and diffie-hellman group1 ciphers
+in the dropbear ssh server and client since they're considered weak ciphers
+and we want to support the stong algorithms.
+
+Upstream-Status: Inappropriate [configuration]
+Signed-off-by: Joseph Reynolds <joseph.reynolds1@ibm.com>
+---
+ default_options.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/default_options.h b/default_options.h
+index d417588..bc5200f 100644
+--- a/default_options.h
++++ b/default_options.h
+@@ -180,7 +180,7 @@ IMPORTANT: Some options will require "make clean" after changes */
+ * Small systems should generally include either curve25519 or ecdh for performance.
+ * curve25519 is less widely supported but is faster
+ */
+-#define DROPBEAR_DH_GROUP14_SHA1 1
++#define DROPBEAR_DH_GROUP14_SHA1 0
+ #define DROPBEAR_DH_GROUP14_SHA256 1
+ #define DROPBEAR_DH_GROUP16 0
+ #define DROPBEAR_CURVE25519 1
+--
+2.25.1
+