Initialize.

1 files changed, 72 insertions, 0 deletions

diff --git a/pyecsca/codegen/hash/sha2.h b/pyecsca/codegen/hash/sha2.h
new file mode 100644
index 0000000..10627cf
--- /dev/null
+++ b/pyecsca/codegen/hash/sha2.h
@@ -0,0 +1,72 @@
+/* sha2.h */
+/*
+    This file was part of the AVR-Crypto-Lib.
+    Copyright (C) 2011 Daniel Otte (daniel.otte@rub.de)
+    Copyright (C) 2019 Jan Jancar
+
+    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
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef SHA2_H_
+#define SHA2_H_
+
+typedef struct {
+	uint64_t h[8];
+	uint32_t length;
+} sha2_large_common_ctx_t;
+
+typedef struct {
+	uint32_t h[8];
+	uint32_t length;
+} sha2_small_common_ctx_t;
+
+#if HASH == HASH_SHA224
+    #define SHA2_SIZE 28
+    #define SHA2_j 7
+    #define SHA2_HASH_BITS  224
+    #define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
+    #define SHA2_BLOCK_BITS 512
+    #define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
+    #define sha2_ctx_t sha2_small_common_ctx_t
+    #define SHA2_STATE_BYTES 32
+#elif HASH == HASH_SHA256
+    #define SHA2_SIZE 32
+    #define SHA2_j 8
+    #define SHA2_HASH_BITS  256
+    #define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
+    #define SHA2_BLOCK_BITS 512
+    #define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
+    #define sha2_ctx_t sha2_small_common_ctx_t
+    #define SHA2_STATE_BYTES 32
+#elif HASH == HASH_SHA384
+    #define SHA2_SIZE 48
+    #define SHA2_i 6
+    #define SHA2_HASH_BITS  384
+    #define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
+    #define SHA2_BLOCK_BITS 1024
+    #define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
+    #define sha2_ctx_t sha2_large_common_ctx_t
+    #define SHA2_STATE_BYTES 64
+#elif HASH == HASH_SHA512
+    #define SHA2_SIZE 64
+    #define SHA2_i 8
+    #define SHA2_HASH_BITS  512
+    #define SHA2_HASH_BYTES (SHA2_HASH_BITS/8)
+    #define SHA2_BLOCK_BITS 1024
+    #define SHA2_BLOCK_BYTES (SHA2_BLOCK_BITS/8)
+    #define sha2_ctx_t sha2_large_common_ctx_t
+    #define SHA2_STATE_BYTES 64
+#endif
+
+#endif /* SHA2_H_ */