Port CC 310 sha512 driver

Port the cc310 SHA512 driver, even though it is sw implementation.
Because the linker could not remove the cc310 sha512 implementation,
there was duplicate implementation of SHA512, without enabling
the sha512 alternative implementation.

Author: Ron Eldor

features/cryptocell/FEATURE_CRYPTOCELL310/mbedtls_device.h

@@ -24,6 +24,7 @@
 #define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT
 #define MBEDTLS_SHA1_ALT
 #define MBEDTLS_SHA256_ALT
+#define MBEDTLS_SHA512_ALT
 #define MBEDTLS_CCM_ALT
 #define MBEDTLS_ECDSA_VERIFY_ALT
 #define MBEDTLS_ECDSA_SIGN_ALT

features/cryptocell/FEATURE_CRYPTOCELL310/sha512_alt.c

@@ -0,0 +1,86 @@
+/*
+ *  sha512_alt.c
+ *
+ *  Copyright (C) 2019, Arm Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+
+#include "mbedtls/sha512.h"
+#if defined(MBEDTLS_SHA512_ALT)
+#include <string.h>
+#include "mbedtls/platform.h"
+
+void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
+{
+    memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
+
+}
+
+void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
+{
+    if( ctx == NULL )
+        return;
+    CRYS_HASH_Free( &ctx->crys_hash_ctx );
+    memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
+}
+
+void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
+                           const mbedtls_sha512_context *src )
+{
+    memcpy(dst,src,sizeof(mbedtls_sha512_context));
+}
+
+
+int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384 )
+{
+    if( is384 )
+        return( MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED );
+    if( CRYS_HASH_Init( &ctx->crys_hash_ctx, CRYS_HASH_SHA512_mode ) != CRYS_OK )
+        return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
+    return ( 0 );
+}
+
+int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx,
+                                     const unsigned char data[128] )
+{
+    return( MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED );
+}
+
+int mbedtls_sha512_update_ret( mbedtls_sha512_context *ctx,
+                               const unsigned char *input,
+                               size_t ilen )
+{
+    if( CRYS_HASH_Update( &ctx->crys_hash_ctx, (uint8_t*)input, ilen ) != CRYS_OK )
+        return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
+    return ( 0 );
+}
+
+int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
+                               unsigned char output[64] )
+{
+    CRYSError_t crys_err = CRYS_OK;
+    CRYS_HASH_Result_t crys_result = {0};
+    crys_err = CRYS_HASH_Finish( &ctx->crys_hash_ctx, crys_result );
+    if( crys_err == CRYS_OK )
+    {
+        memcpy(output,crys_result,64);
+        return ( 0 );
+    }
+    else
+        return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
+}
+#endif //MBEDTLS_SHA512_ALT
+

features/cryptocell/FEATURE_CRYPTOCELL310/sha512_alt.h

@@ -0,0 +1,37 @@
+/*
+ *  sha512_alt.h
+ *
+ *  Copyright (C) 2019, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+
+#ifndef __SHA512_ALT__
+#define __SHA512_ALT__
+
+#if defined(MBEDTLS_SHA512_ALT)
+
+#include "crys_hash.h"
+
+/**
+ * \brief          SHA-512 context structure
+ */
+typedef struct
+{
+    CRYS_HASHUserContext_t crys_hash_ctx;
+} mbedtls_sha512_context;
+
+#endif // MBEDTLS_SHA256_ALT__
+#endif //__SHA256_ALT__