commit 8295ff0b04d1885756757c0a76e36a1f44f70f5c
author Hanno Becker <hanno.becker@arm.com> Wed Jul 24 12:45:52 2019 +0100
committer Hanno Becker <hanno.becker@arm.com> Mon Aug 12 18:01:47 2019 +0100
tree 11a88887bcea80dc6c3db5f9807bfdad3778de88
parent b1626fb619874a79f11c0e9f04ff426890e7623e

tinyCrypt: Don't store public ECDH-share in handshake struct

Instead, write it to the message buffer directly.

library/ssl_cli.c

diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index ef68244..f7a0549 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -3576,19 +3576,17 @@
         ((void) n);
         ((void) ret);
 
-        if( !uECC_make_key( ssl->handshake->ecdh_ownpubkey,
-                            ssl->handshake->ecdh_privkey,
-                            uecc_curve ) )
-        {
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-
         if( (size_t)( end - p ) < 2 * NUM_ECC_BYTES + 2 )
             return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
 
         *p++ = 2 * NUM_ECC_BYTES + 1;
         *p++ = 0x04; /* uncompressed point presentation */
-        memcpy( p, ssl->handshake->ecdh_ownpubkey, 2 * NUM_ECC_BYTES );
+
+        if( !uECC_make_key( p, ssl->handshake->ecdh_privkey,
+                            uecc_curve ) )
+        {
+            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+        }
         p += 2 * NUM_ECC_BYTES;
     }
     else