[Cryptech-Commits] [core/platform/novena] 01/01: Trying to generalize more of addresses in the cores. Adding more defines for the modexp core.

[git at cryptech.is]

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joachim at secworks.se pushed a commit to branch master
in repository core/platform/novena.

commit a6effa1995fb9500cc66c2584d5f28d7585bba1c
Author: Joachim Strömbergson <joachim at secworks.se>
Date:   Wed Apr 29 16:39:21 2015 +0200

    Trying to generalize more of addresses in the cores. Adding more defines for the modexp core.
---
 sw/cryptech.h | 37 ++++++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/sw/cryptech.h b/sw/cryptech.h
index 5afd08c..a8efef4 100644
--- a/sw/cryptech.h
+++ b/sw/cryptech.h
@@ -46,10 +46,18 @@
 #define SEGMENT_OFFSET_MATH     4 * SEGMENT_SIZE
 
 
-// addresses and codes common to all cores
+//------------------------------------------------------------------
+// Addresses and codes common to all cores
+//------------------------------------------------------------------
 #define ADDR_NAME0              0x00
 #define ADDR_NAME1              0x01
 #define ADDR_VERSION            0x02
+#define ADDR_CTRL               0x08
+#define CTRL_INIT_BIT           1
+#define CTRL_NEXT_BIT           2
+#define ADDR_STATUS             0x09
+#define STATUS_READY_BIT        1
+#define STATUS_VALID_BIT        2
 
 
 // a handy macro from cryptlib
@@ -94,15 +102,12 @@
 #define HASH_CORE_SIZE          0x100
 
 // addresses and codes common to all hash cores
-#define ADDR_CTRL               0x8
 #define CTRL_INIT_CMD           1
 #define CTRL_NEXT_CMD           2
-#define ADDR_STATUS             0x9
-#define STATUS_READY_BIT        1
-#define STATUS_VALID_BIT        2
 #define ADDR_BLOCK              0x10
 #define ADDR_DIGEST             0x20      // except SHA512
 
+
 // addresses and codes for the specific hash cores.
 #define SHA1_ADDR_BASE          SEGMENT_OFFSET_HASHES + (0 * HASH_CORE_SIZE)
 #define SHA1_ADDR_NAME0         SHA1_ADDR_BASE + ADDR_NAME0
@@ -247,17 +252,22 @@
 // -----------------------------------------------------------------
 // MATH segment.
 // -----------------------------------------------------------------
-#define MATH_CORE_SIZE            0x100
-
-// addresses and codes for the MATH cores */
-#define MODEXP_ADDR_BASE          SEGMENT_OFFSET_MATH + (0x00 * MATH_CORE_SIZE)
+// Modexp core.
+#define MODEXP_CORE_SIZE          0x1000
+#define GENERAL_PREFIX            0x000
+#define MODULUS_PREFIX            0x100
+#define EXPONENT_PREFIX           0x200
+#define MESSAGE_PREFIX            0x300
+#define RESULT_PREFIX             0x400
+
+#define MODEXP_ADDR_BASE          SEGMENT_OFFSET_MATH + (0x00 * MODEXP_CORE_SIZE)
 #define MODEXP_ADDR_NAME0         MODEXP_ADDR_BASE + ADDR_NAME0
 #define MODEXP_ADDR_NAME1         MODEXP_ADDR_BASE + ADDR_NAME1
 #define MODEXP_ADDR_VERSION       MODEXP_ADDR_BASE + ADDR_VERSION
-#define MODEXP_ADDR_CTRL          MODEXP_ADDR_BASE + 0x08
-#define MODEXP_CTRL_INIT          1
-#define MODEXP_CTRL_NEXT          2
-#define MODEXP_ADDR_STATUS        MODEXP_ADDR_BASE + 0x09
+#define MODEXP_ADDR_CTRL          MODEXP_ADDR_BASE + ADDR_CTRL
+#define MODEXP_CTRL_INIT_BIT      1
+#define MODEXP_CTRL_NEXT_BIT      2
+#define MODEXP_ADDR_STATUS        MODEXP_ADDR_BASE + ADDR_STATUS
 
 #define MODEXP_ADDR_DELAY         MODEXP_ADDR_BASE + 0x13
 #define MODEXP_STATUS_READY       1
@@ -270,6 +280,7 @@
 #define MODEXP_VERSION            "0.50"
 
 
+
 //------------------------------------------------------------------
 // Test case public functions
 //------------------------------------------------------------------