From 85a755a03eea1ac16301357e14c92b2f2aceee79 Mon Sep 17 00:00:00 2001
From: Michael Preisach <michael.preisach@ins.jku.at>
Date: Mon, 13 Sep 2021 12:08:38 +0000
Subject: [PATCH] shorten nonce for debugging reasons

---
 common.h         | 2 +-
 member-tpm-key.c | 4 ++--
 member-tpm.c     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/common.h b/common.h
index 9d6ab36..5835792 100644
--- a/common.h
+++ b/common.h
@@ -20,7 +20,7 @@
 /* #define MAX_MSGSIZE ((MAX_BUFSIZE - 1536) / 2) - MAX_CHKSUMSIZE //for bin to hex*/
 /* #define MAX_MSGSIZE ((MAX_BUFSIZE - 1536) / 4 * 3) - MAX_CHKSUMSIZE //for base64 */
 #define MAX_BSNSIZE 128
-#define NONCE_SIZE 384
+#define NONCE_SIZE 64
 
 #define ISSUER_PUBLIC_KEY_FILE "ipk.bin"
 #define ISSUER_SECRET_KEY_FILE "isk.bin"
diff --git a/member-tpm-key.c b/member-tpm-key.c
index 5408119..bed5113 100644
--- a/member-tpm-key.c
+++ b/member-tpm-key.c
@@ -154,7 +154,7 @@ int save_public_key_info(const struct test_context *ctx, const char* pub_key_fil
             break;
 
         for (unsigned i=0; i < ctx->out_public.publicArea.unique.ecc.x.size; i++) {
-            if (fprintf(pub_key_file_ptr, "%c", ctx->out_public.publicArea.unique.ecc.x.buffer[i]) != 1) {
+            if (fprintf(pub_key_file_ptr, "%02X", ctx->out_public.publicArea.unique.ecc.x.buffer[i]) != 2) {
                 write_ret = -1;
                 break;
             }
@@ -163,7 +163,7 @@ int save_public_key_info(const struct test_context *ctx, const char* pub_key_fil
             break;
 
         for (unsigned i=0; i < ctx->out_public.publicArea.unique.ecc.y.size; i++) {
-            if (fprintf(pub_key_file_ptr, "%c", ctx->out_public.publicArea.unique.ecc.y.buffer[i]) != 1) {
+            if (fprintf(pub_key_file_ptr, "%02X", ctx->out_public.publicArea.unique.ecc.y.buffer[i]) != 2) {
                 write_ret = -1;
                 break;
             }
diff --git a/member-tpm.c b/member-tpm.c
index d9e3752..9bc31c2 100644
--- a/member-tpm.c
+++ b/member-tpm.c
@@ -306,7 +306,7 @@ int member_joinappend(char *buffer) {
     bzero(buffer, MAX_BUFSIZE);
     if (0 != (ret = ecdaa_member_key_pair_TPM_FP256BN_generate(&member.mpk, member.pk_in, member.nonce, NONCE_SIZE, &member.ctx))) {
         fprintf(stderr, "Error generating member key-pair: ret = %d\n", ret);
-        strncpy(buffer, "ERR\n", 4);
+        strncpy(buffer, "ABORT\n", 6);
         return -1;
     }
     strncpy(buffer, "APPEND ", 7);