X-Git-Url: https://git.cryptolib.org/?p=avr-crypto-lib.git;a=blobdiff_plain;f=ecdsa%2Fnist_p192.c;h=7e8d9292f62cde26032bd77e2d3a2f21ce947106;hp=4e68e25a636ee1c8d8bf1ef83e64ffdbdacbd2d5;hb=4b5da1dc27a791b5c448274a3db09cd035b33493;hpb=45d15fcc098c9eece5c39b5e421a1706f187a0d3

diff --git a/ecdsa/nist_p192.c b/ecdsa/nist_p192.c
index 4e68e25..7e8d929 100644
--- a/ecdsa/nist_p192.c
+++ b/ecdsa/nist_p192.c
@@ -1,7 +1,7 @@
 /* p192.c */
 /*
     This file is part of the AVR-Crypto-Lib.
-    Copyright (C) 2006-2012 Daniel Otte (daniel.otte@rub.de)
+    Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -46,6 +46,12 @@ uint8_t nist_curve_p192_p_w[] = {
     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 };
 
+uint8_t nist_curve_p192_n_w[] = {
+    0x31, 0x28, 0xd2, 0xb4, 0xb1, 0xc9, 0x6b, 0x14,
+    0x36, 0xf8, 0xde, 0x99, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+
 uint8_t nist_curve_p192_b_w[] = {
     0xb1, 0xb9, 0x46, 0xc1, 0xec, 0xde, 0xb8, 0xfe,
     0x49, 0x30, 0x24, 0x72, 0xab, 0xe9, 0xa7, 0x0f,
@@ -85,6 +91,13 @@ bigint_t nist_curve_p192_p = {
     .info = 7
 };
 
+
+bigint_t nist_curve_p192_n = {
+    .length_W = 192 / BIGINT_WORD_SIZE,
+    .wordv = nist_curve_p192_n_w,
+    .info = 7
+};
+
 bigint_t nist_curve_p192_b = {
     .length_W = 192 / BIGINT_WORD_SIZE,
     .wordv = nist_curve_p192_b_w,
@@ -124,17 +137,18 @@ ecc_combi_point_t nist_curve_p192_basepoint = {
 ecc_curve_sp_t nist_curve_p192 = {
     .b = &nist_curve_p192_b,
     .p = &nist_curve_p192_p,
+    .n = &nist_curve_p192_n,
     .reduce_p = bigint_reduce_p192
 };
 
 
 /*
- * A = ( A5 || A4 || A3 || A2 || A1 || A0 ) ; An if 64-bit
+ * A = ( A5 || A4 || A3 || A2 || A1 || A0 ) ; An is 64-bit
  * A mod p = B = T + S1 + S2 + S3 mod p
  *
  * T  = ( A2 || A1 || A0 )
- * S1 = ( A3 || A3 )
- * S2 = ( A4 || A4 || 0 )
+ * S1 = (  0 || A3 || A3 )
+ * S2 = ( A4 || A4 ||  0 )
  * S3 = ( A5 || A5 || A5 )
  *
  */