Author: Daniel Baumann <daniel.baumann@progress-linux.org>
Description: Setting default ECDSA size in ssh-keygen to 521.

diff -Naurp openssh.orig/ssh-keygen.1 openssh/ssh-keygen.1
--- openssh.orig/ssh-keygen.1
+++ openssh/ssh-keygen.1
@@ -250,7 +250,7 @@ For ECDSA keys, the
 flag determines the key length by selecting from one of three elliptic
 curve sizes: 256, 384 or 521 bits.
 Attempting to use bit lengths other than these three values for ECDSA keys
-will fail.
+will fail and the default is 521 bits.
 Ed25519 keys have a fixed length and the
 .Fl b
 flag will be ignored.
diff -Naurp openssh.orig/ssh-keygen.c openssh/ssh-keygen.c
--- openssh.orig/ssh-keygen.c
+++ openssh/ssh-keygen.c
@@ -66,7 +66,7 @@
 /* Number of bits in the RSA/DSA key.  This value can be set on the command line. */
 #define DEFAULT_BITS		4096
 #define DEFAULT_BITS_DSA	1024
-#define DEFAULT_BITS_ECDSA	256
+#define DEFAULT_BITS_ECDSA	521
 u_int32_t bits = 0;
 
 /*