GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
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+/* SPDX-License-Identifier: LGPL-2.1 */
+/**
+ * \file sha1.h
+ * based from http://xyssl.org/code/source/sha1/
+ *  FIPS-180-1 compliant SHA-1 implementation
+ *
+ *  Copyright (C) 2003-2006  Christophe Devine
+ */
+/*
+ *  The SHA-1 standard was published by NIST in 1993.
+ *
+ *  http://www.itl.nist.gov/fipspubs/fip180-1.htm
+ */
+#ifndef _SHA1_H
+#define _SHA1_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SHA1_SUM_POS	-0x20
+#define SHA1_SUM_LEN	20
+#define SHA1_DER_LEN	15
+
+extern const uint8_t sha1_der_prefix[];
+
+/**
+ * \brief	   SHA-1 context structure
+ */
+typedef struct
+{
+    unsigned long total[2];	/*!< number of bytes processed	*/
+    unsigned long state[5];	/*!< intermediate digest state	*/
+    unsigned char buffer[64];	/*!< data block being processed */
+}
+sha1_context;
+
+/**
+ * \brief	   SHA-1 context setup
+ *
+ * \param ctx	   SHA-1 context to be initialized
+ */
+void sha1_starts( sha1_context *ctx );
+
+/**
+ * \brief	   SHA-1 process buffer
+ *
+ * \param ctx	   SHA-1 context
+ * \param input    buffer holding the  data
+ * \param ilen	   length of the input data
+ */
+void sha1_update(sha1_context *ctx, const unsigned char *input,
+		 unsigned int ilen);
+
+/**
+ * \brief	   SHA-1 final digest
+ *
+ * \param ctx	   SHA-1 context
+ * \param output   SHA-1 checksum result
+ */
+void sha1_finish( sha1_context *ctx, unsigned char output[20] );
+
+/**
+ * \brief	   Output = SHA-1( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen	   length of the input data
+ * \param output   SHA-1 checksum result
+ */
+void sha1_csum(const unsigned char *input, unsigned int ilen,
+		unsigned char *output);
+
+/**
+ * \brief	   Output = SHA-1( input buffer ), with watchdog triggering
+ *
+ * \param input    buffer holding the  data
+ * \param ilen	   length of the input data
+ * \param output   SHA-1 checksum result
+ * \param chunk_sz watchdog triggering period (in bytes of input processed)
+ */
+void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz);
+
+/**
+ * \brief	   Output = HMAC-SHA-1( input buffer, hmac key )
+ *
+ * \param key	   HMAC secret key
+ * \param keylen   length of the HMAC key
+ * \param input    buffer holding the  data
+ * \param ilen	   length of the input data
+ * \param output   HMAC-SHA-1 result
+ */
+void sha1_hmac(const unsigned char *key, int keylen,
+		const unsigned char *input, unsigned int ilen,
+		unsigned char *output);
+
+/**
+ * \brief	   Checkup routine
+ *
+ * \return	   0 if successful, or 1 if the test failed
+ */
+int sha1_self_test( void );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* sha1.h */