--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eapol/eapol_framework/eapol_common/am/include/eap_am_crypto_sha_256.h Thu Dec 17 08:47:43 2009 +0200
@@ -0,0 +1,217 @@
+/*
+* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: EAP and WLAN authentication protocols.
+*
+*/
+
+
+
+#if !defined( _EAP_AM_CRYPTO_SHA_256_H_ )
+#define _EAP_AM_CRYPTO_SHA_256_H_
+
+#include "eap_am_types.h"
+#include "eap_variable_data.h"
+#include "eap_am_export.h"
+#include "eap_am_tools.h"
+
+
+//--------------------------------------------------
+
+/// The eap_am_crypto_sha_256_c class includes the state of
+/// one instance of SHA_256 algorithm.
+class EAP_EXPORT eap_am_crypto_sha_256_c
+{
+
+private:
+ // - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+ enum eap_sha_256_H_init
+ {
+ EAP_SHA_256_INIT_H0 = 0x6a09e667,
+ EAP_SHA_256_INIT_H1 = 0xbb67ae85,
+ EAP_SHA_256_INIT_H2 = 0x3c6ef372,
+ EAP_SHA_256_INIT_H3 = 0xa54ff53a,
+ EAP_SHA_256_INIT_H4 = 0x510e527f,
+ EAP_SHA_256_INIT_H5 = 0x9b05688c,
+ EAP_SHA_256_INIT_H6 = 0x1f83d9ab,
+ EAP_SHA_256_INIT_H7 = 0x5be0cd19,
+ };
+
+ enum eap_sha_256_sizes
+ {
+ EAP_AM_CRYPTO_SHA_256_BLOCK_u32_COUNT = 16ul, ///< 16 u32_t integers.
+ EAP_AM_CRYPTO_SHA_256_BLOCK_BYTE_SIZE
+ = EAP_AM_CRYPTO_SHA_256_BLOCK_u32_COUNT
+ * sizeof(u32_t), ///< in bytes.
+ EAP_AM_CRYPTO_SHA_256_DIGEST_BUFFER_u32_COUNT
+ = 8ul, ///< 8 u32_t integers.
+ EAP_AM_CRYPTO_SHA_256_DIGEST_BUFFER_BYTE_SIZE
+ = EAP_AM_CRYPTO_SHA_256_DIGEST_BUFFER_u32_COUNT
+ * sizeof(u32_t), ///< in bytes.
+ EAP_AM_CRYPTO_SHA_256_SCHEDULE_u32_COUNT = 64ul, ///< 64 u32_t integers.
+ };
+
+ // - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+ /// This is pointer to the tools class.
+ abs_eap_am_tools_c * const m_am_tools;
+
+ /// This buffer saves remaining data between subsequent calls
+ /// of hash_update().
+ eap_variable_data_c m_saved_data;
+
+ /// This attribute saves the length of hashed data.
+ u64_t m_full_hashed_data_length;
+
+ /// Array of 16 temporary 32-bit unsigned integers.
+ u32_t m_T[EAP_AM_CRYPTO_SHA_256_BLOCK_u32_COUNT];
+
+ static const unsigned long m_K[EAP_AM_CRYPTO_SHA_256_SCHEDULE_u32_COUNT];
+
+ u32_t m_M_in_host_order[EAP_AM_CRYPTO_SHA_256_BLOCK_u32_COUNT];
+
+ /// This buffer saves the digest value between subsequent call
+ /// of hash_update().
+ u32_t m_H[EAP_AM_CRYPTO_SHA_256_DIGEST_BUFFER_u32_COUNT];
+
+ /// This indicates whether this object was generated successfully.
+ bool m_is_valid;
+
+ // - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+ inline u32_t eap_sha_256_rotate(
+ const u32_t value,
+ const u32_t shift
+ );
+
+ /// @param W is an array of modulo 16 input 32-bit unsigned integers
+ /// in host order.
+ /// @param W_count is count of integers in W array.
+ EAP_FUNC_IMPORT eap_status_e eap_sha_256_process_data_host_order(
+ const u32_t * W,
+ u32_t W_count
+ );
+
+ /// @param W is an array of modulo 16 input 32-bit unsigned integers
+ /// in host order.
+ /// @param W_count is count of integers in W array.
+ EAP_FUNC_IMPORT eap_status_e eap_sha_256_process_data_network_order(
+ const u32_t * W,
+ u32_t W_count
+ );
+
+ /**
+ * This function cleans up the SHA_256 context.
+ */
+ EAP_FUNC_IMPORT eap_status_e hash_cleanup();
+
+ /**
+ * This function copies the message digest to output buffer.
+ */
+ EAP_FUNC_IMPORT eap_status_e copy_message_digest(
+ void * const output,
+ u32_t * const max_output_size);
+
+
+ /**
+ * The set_is_invalid() function sets the state of the eap_am_crypto_md4_c
+ * object invalid.
+ * The eap_am_crypto_md4_c object calls this function after it is
+ * initialized.
+ */
+ EAP_FUNC_IMPORT void set_is_invalid();
+
+ /**
+ * The set_is_valid() function sets the state of the eap_am_crypto_md4_c
+ * object valid.
+ * The eap_am_crypto_md4_c object calls this function after it is
+ * initialized.
+ */
+ EAP_FUNC_IMPORT void set_is_valid();
+
+ /**
+ * This function copies the context of SHA_256.
+ */
+ EAP_FUNC_IMPORT eap_status_e copy_context(
+ const eap_variable_data_c * const saved_data,
+ const u64_t full_hashed_data_length,
+ const u32_t * const H,
+ const u32_t * const T,
+ const u32_t * const W_in_host_order);
+
+ // - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+public:
+ // - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+ /**
+ * Destructor does nothing special.
+ */
+ EAP_FUNC_IMPORT virtual ~eap_am_crypto_sha_256_c();
+
+ /**
+ * Constructor initializes the member attributes.
+ */
+ EAP_FUNC_IMPORT eap_am_crypto_sha_256_c(abs_eap_am_tools_c * const tools);
+
+ /**
+ * The get_is_valid() function returns the status of the
+ * eap_am_crypto_md4_c object.
+ * True indicates the object is allocated successfully.
+ */
+ EAP_FUNC_IMPORT bool get_is_valid();
+
+ /**
+ * This function returns the size of message digest of HASH-algorithm.
+ */
+ EAP_FUNC_IMPORT u32_t get_digest_length();
+
+ /**
+ * This function returns the size of block of HASH-algorithm.
+ */
+ EAP_FUNC_IMPORT u32_t get_block_size();
+
+ /**
+ * This function initializes the context of SHA_256-algorithm.
+ */
+ EAP_FUNC_IMPORT eap_status_e hash_init();
+
+ /**
+ * This function updates the context of SHA_256-algorithm with data.
+ */
+ EAP_FUNC_IMPORT eap_status_e hash_update(
+ const void * const data,
+ const u32_t data_length);
+
+ /**
+ * This function writes the message digest to buffer.
+ * @param Length is set if md_length_or_null is non-NULL.
+ */
+ EAP_FUNC_IMPORT eap_status_e hash_final(
+ void * const message_digest,
+ u32_t *md_length_or_null);
+
+ /**
+ * This function copies the context of SHA_256.
+ */
+ EAP_FUNC_IMPORT eap_am_crypto_sha_256_c * copy();
+
+};
+
+//--------------------------------------------------
+
+#endif //#if !defined( _EAP_AM_CRYPTO_SHA_256_H_ )
+
+
+
+// End.