Merge branch 'import-sha2' into crypto-hash

1 files changed, 258 insertions, 0 deletions

diff --git a/Source/cm_sha2.h b/Source/cm_sha2.h
new file mode 100644
index 0000000..9459f75
--- /dev/null
+++ b/Source/cm_sha2.h
@@ -0,0 +1,258 @@
+/*
+ * FILE:    sha2.h
+ * AUTHOR:  Aaron D. Gifford
+ *          http://www.aarongifford.com/computers/sha.html
+ *
+ * Copyright (c) 2000-2003, Aaron D. Gifford
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: sha2.h,v 1.4 2004/01/07 19:06:18 adg Exp $
+ */
+
+#ifndef __SHA2_H__
+#define __SHA2_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+ * Import u_intXX_t size_t type definitions from system headers.  You
+ * may need to change this, or define these things yourself in this
+ * file.
+ */
+#include <sys/types.h>
+
+#ifdef SHA2_USE_INTTYPES_H
+
+#include <inttypes.h>
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+
+/*** SHA-224/256/384/512 Various Length Definitions *******************/
+
+/* Digest lengths for SHA-1/224/256/384/512 */
+#define   SHA1_DIGEST_LENGTH          20
+#define   SHA1_DIGEST_STRING_LENGTH  (SHA1_DIGEST_LENGTH   * 2 + 1)
+#define SHA224_DIGEST_LENGTH          28
+#define SHA224_DIGEST_STRING_LENGTH  (SHA224_DIGEST_LENGTH * 2 + 1)
+#define SHA256_DIGEST_LENGTH          32
+#define SHA256_DIGEST_STRING_LENGTH  (SHA256_DIGEST_LENGTH * 2 + 1)
+#define SHA384_DIGEST_LENGTH          48
+#define SHA384_DIGEST_STRING_LENGTH  (SHA384_DIGEST_LENGTH * 2 + 1)
+#define SHA512_DIGEST_LENGTH          64
+#define SHA512_DIGEST_STRING_LENGTH  (SHA512_DIGEST_LENGTH * 2 + 1)
+
+
+/*** SHA-224/256/384/512 Context Structures ***************************/
+/* NOTE: If your architecture does not define either u_intXX_t types or
+ * uintXX_t (from inttypes.h), you may need to define things by hand
+ * for your system:
+ */
+#if 0
+typedef unsigned char u_int8_t;        /* 1-byte  (8-bits)  */
+typedef unsigned int  u_int32_t;       /* 4-bytes (32-bits) */
+typedef unsigned long long u_int64_t;  /* 8-bytes (64-bits) */
+#endif
+/*
+ * Most BSD systems already define u_intXX_t types, as does Linux.
+ * Some systems, however, like Compaq's Tru64 Unix instead can use
+ * uintXX_t types defined by very recent ANSI C standards and included
+ * in the file:
+ *
+ *   #include <inttypes.h>
+ *
+ * If you choose to use <inttypes.h> then please define:
+ *
+ *   #define SHA2_USE_INTTYPES_H
+ *
+ * Or on the command line during compile:
+ *
+ *   cc -DSHA2_USE_INTTYPES_H ...
+ */
+#ifdef SHA2_USE_INTTYPES_H
+
+typedef union _SHA_CTX {
+    /* SHA-1 uses this part of the union: */
+    struct {
+	uint32_t state[5];
+	uint64_t bitcount;
+	uint8_t	 buffer[64];
+    } s1;
+
+    /* SHA-224 and SHA-256 use this part of the union: */
+    struct {
+	uint32_t state[8];
+	uint64_t bitcount;
+	uint8_t	 buffer[64];
+    } s256;
+
+    /* SHA-384 and SHA-512 use this part of the union: */
+    struct {
+	uint64_t state[8];
+	uint64_t bitcount[2];
+	uint8_t	 buffer[128];
+    } s512;
+} SHA_CTX;
+
+#else /* SHA2_USE_INTTYPES_H */
+
+typedef union _SHA_CTX {
+    /* SHA-1 uses this part of the union: */
+    struct {
+	u_int32_t state[5];
+	u_int64_t bitcount;
+	u_int8_t  buffer[64];
+    } s1;
+
+    /* SHA-224 and SHA-256 use this part of the union: */
+    struct {
+	u_int32_t state[8];
+	u_int64_t bitcount;
+	u_int8_t  buffer[64];
+    } s256;
+
+    /* SHA-384 and SHA-512 use this part of the union: */
+    struct {
+	u_int64_t state[8];
+	u_int64_t bitcount[2];
+	u_int8_t  buffer[128];
+    } s512;
+} SHA_CTX;
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+
+/*** SHA-256/384/512 Function Prototypes ******************************/
+#ifndef NOPROTO
+#ifdef SHA2_USE_INTTYPES_H
+
+void SHA1_Init(SHA_CTX*);
+void SHA1_Update(SHA_CTX*, const uint8_t*, size_t);
+void SHA1_Final(uint8_t[SHA1_DIGEST_LENGTH], SHA_CTX*);
+char* SHA1_End(SHA_CTX*, char[SHA1_DIGEST_STRING_LENGTH]);
+char* SHA1_Data(const uint8_t*, size_t, char[SHA1_DIGEST_STRING_LENGTH]);
+
+void SHA224_Init(SHA_CTX*);
+void SHA224_Update(SHA_CTX*, const uint8_t*, size_t);
+void SHA224_Final(uint8_t[SHA224_DIGEST_LENGTH], SHA_CTX*);
+char* SHA224_End(SHA_CTX*, char[SHA224_DIGEST_STRING_LENGTH]);
+char* SHA224_Data(const uint8_t*, size_t, char[SHA224_DIGEST_STRING_LENGTH]);
+
+void SHA256_Init(SHA_CTX*);
+void SHA256_Update(SHA_CTX*, const uint8_t*, size_t);
+void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA_CTX*);
+char* SHA256_End(SHA_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA_CTX*);
+void SHA384_Update(SHA_CTX*, const uint8_t*, size_t);
+void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA_CTX*);
+char* SHA384_End(SHA_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA_CTX*);
+void SHA512_Update(SHA_CTX*, const uint8_t*, size_t);
+void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA_CTX*);
+char* SHA512_End(SHA_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#else /* SHA2_USE_INTTYPES_H */
+
+void SHA1_Init(SHA_CTX*);
+void SHA1_Update(SHA_CTX*, const u_int8_t*, size_t);
+void SHA1_Final(u_int8_t[SHA1_DIGEST_LENGTH], SHA_CTX*);
+char* SHA1_End(SHA_CTX*, char[SHA1_DIGEST_STRING_LENGTH]);
+char* SHA1_Data(const u_int8_t*, size_t, char[SHA1_DIGEST_STRING_LENGTH]);
+
+void SHA224_Init(SHA_CTX*);
+void SHA224_Update(SHA_CTX*, const u_int8_t*, size_t);
+void SHA224_Final(u_int8_t[SHA224_DIGEST_LENGTH], SHA_CTX*);
+char* SHA224_End(SHA_CTX*, char[SHA224_DIGEST_STRING_LENGTH]);
+char* SHA224_Data(const u_int8_t*, size_t, char[SHA224_DIGEST_STRING_LENGTH]);
+
+void SHA256_Init(SHA_CTX*);
+void SHA256_Update(SHA_CTX*, const u_int8_t*, size_t);
+void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA_CTX*);
+char* SHA256_End(SHA_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA_CTX*);
+void SHA384_Update(SHA_CTX*, const u_int8_t*, size_t);
+void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA_CTX*);
+char* SHA384_End(SHA_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA_CTX*);
+void SHA512_Update(SHA_CTX*, const u_int8_t*, size_t);
+void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA_CTX*);
+char* SHA512_End(SHA_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+#else /* NOPROTO */
+
+void SHA1_Init();
+void SHA1_Update();
+void SHA1_Final();
+char* SHA1_End();
+char* SHA1_Data();
+
+void SHA224_Init();
+void SHA224_Update();
+void SHA224_Final();
+char* SHA224_End();
+char* SHA224_Data();
+
+void SHA256_Init();
+void SHA256_Update();
+void SHA256_Final();
+char* SHA256_End();
+char* SHA256_Data();
+
+void SHA384_Init();
+void SHA384_Update();
+void SHA384_Final();
+char* SHA384_End();
+char* SHA384_Data();
+
+void SHA512_Init();
+void SHA512_Update();
+void SHA512_Final();
+char* SHA512_End();
+char* SHA512_Data();
+
+#endif /* NOPROTO */
+
+#ifdef    __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __SHA2_H__ */