1 files changed, 158 insertions, 0 deletions
diff --git a/client/wolfssl/wolfcrypt/src/port/xilinx/xil-sha3.c b/client/wolfssl/wolfcrypt/src/port/xilinx/xil-sha3.c
new file mode 100644
index 0000000..a9db6b9
--- /dev/null
+++ b/client/wolfssl/wolfcrypt/src/port/xilinx/xil-sha3.c
@@ -0,0 +1,158 @@
+/* xil-sha3.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
+
+#include <wolfssl/wolfcrypt/settings.h>
+
+
+#if defined(WOLFSSL_SHA3) && defined(WOLFSSL_XILINX_CRYPT)
+
+#include <wolfssl/wolfcrypt/sha3.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+#include <wolfssl/wolfcrypt/logging.h>
+
+#if !defined(WOLFSSL_NOSHA3_224) || !defined(WOLFSSL_NOSHA3_256) \
+    || !defined(WOLFSSL_NOSHA3_512)
+    #error sizes of SHA3 other than 384 are not supported
+#endif
+
+/* Initialize hardware for SHA3 operations
+ *
+ * sha   SHA3 structure to initialize
+ * heap  memory heap hint to use
+ * devId used for async operations (currently not supported here)
+ */
+int wc_InitSha3_384(wc_Sha3* sha, void* heap, int devId)
+{
+    XCsuDma_Config* con;
+
+    (void)heap;
+    (void)devId;
+
+    if (sha == NULL) {
+        return BAD_FUNC_ARG;
+    }
+
+    if ((con = XCsuDma_LookupConfig(0)) == NULL) {
+        WOLFSSL_MSG("Unable to look up configure for SHA3");
+        return BAD_STATE_E;
+    }
+
+    /* XST_SUCCESS is success macro from Xilinx header */
+    if (XCsuDma_CfgInitialize(&(sha->dma), con, con->BaseAddress) !=
+            XST_SUCCESS) {
+        WOLFSSL_MSG("Unable to initialize CsuDma");
+        return BAD_STATE_E;
+    }
+
+    XSecure_Sha3Initialize(&(sha->hw), &(sha->dma));
+    XSecure_Sha3Start(&(sha->hw));
+
+    return 0;
+}
+
+
+/* Update SHA3 state
+ *
+ * sha   SHA3 structure to update
+ * data  message to update SHA3 state with
+ * len   length of data buffer
+ */
+int wc_Sha3_384_Update(wc_Sha3* sha, const byte* data, word32 len)
+{
+    if (sha == NULL ||  (data == NULL && len > 0)) {
+        return BAD_FUNC_ARG;
+    }
+    XSecure_Sha3Update(&(sha->hw), (byte*)data, len);
+
+    return 0;
+}
+
+
+/* Finalize SHA3 state and get digest
+ *
+ * sha  SHA3 structure to get hash
+ * out  digest out, expected to be large enough to hold SHA3 digest
+ */
+int wc_Sha3_384_Final(wc_Sha3* sha, byte* out)
+{
+    if (sha == NULL || out == NULL) {
+        return BAD_FUNC_ARG;
+    }
+    XSecure_Sha3Finish(&(sha->hw), out);
+
+    return wc_InitSha3_384(sha, NULL, INVALID_DEVID);
+}
+
+
+/* Free SHA3 structure
+ *
+ * sha  SHA3 structure to free
+ */
+void wc_Sha3_384_Free(wc_Sha3* sha)
+{
+    (void)sha;
+    /* nothing to free yet */
+}
+
+
+/* Get SHA3 digest without finalize SHA3 state
+ *
+ * sha  SHA3 structure to get hash
+ * out  digest out, expected to be large enough to hold SHA3 digest
+ */
+int wc_Sha3_384_GetHash(wc_Sha3* sha, byte* out)
+{
+    wc_Sha3 s;
+
+    if (sha == NULL || out == NULL) {
+        return BAD_FUNC_ARG;
+    }
+
+    if (wc_Sha3_384_Copy(sha, &s) != 0) {
+        WOLFSSL_MSG("Unable to copy SHA3 structure");
+        return MEMORY_E;
+    }
+
+    return wc_Sha3_384_Final(&s, out);
+}
+
+
+/* Get copy of SHA3 structure
+ *
+ * src SHA3 structure to make copy of
+ * dst [out]structure to hold copy
+ */
+int wc_Sha3_384_Copy(wc_Sha3* src, wc_Sha3* dst)
+{
+    if (src == NULL || dst== NULL) {
+        return BAD_FUNC_ARG;
+    }
+
+    XMEMCPY((byte*)dst, (byte*)src, sizeof(wc_Sha3));
+    return 0;
+}
+
+#endif