mbedtls: Add CONFIG_MBEDTLS_ROM_MD5 to use ROM MD5 in mbedTLS

components/mbedtls/port/include/md/esp_md.h

@@ -0,0 +1,154 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// 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
+
+#pragma once
+
+#include "esp_rom_md5.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct MD5Context mbedtls_md5_context;
+
+/**
+ * \brief          Initialize MD5 context
+ *
+ * \param ctx      MD5 context to be initialized
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+int esp_md5_init_ret( mbedtls_md5_context *ctx );
+
+/**
+ * \brief          Clear MD5 context
+ *
+ * \param ctx      MD5 context to be cleared
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+void esp_md5_free( mbedtls_md5_context *ctx );
+
+/**
+ * \brief          Clone (the state of) an MD5 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+void esp_md5_clone( mbedtls_md5_context *dst, const mbedtls_md5_context *src );
+
+/**
+ * \brief          MD5 process buffer
+ *
+ * \param ctx      MD5 context
+ * \param input    buffer holding the data
+ * \param ilen     length of the input data
+ *
+ * \return         0 if successful
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+int esp_md5_update_ret( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          MD5 final digest
+ *
+ * \param ctx      MD5 context
+ * \param output   MD5 checksum result
+ *
+ * \return         0 if successful
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+int esp_md5_finish_ret( mbedtls_md5_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief          MD5 process data block (internal use only)
+ *
+ * \param ctx      MD5 context
+ * \param data     buffer holding one block of data
+ *
+ * \return         0 if successful
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+int esp_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] );
+
+/**
+ * \brief          MD5 context setup
+ *
+ * \deprecated     Superseded by mbedtls_md5_starts_ret() in 2.7.0
+ *
+ * \param ctx      context to be initialized
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+void esp_md5_init( mbedtls_md5_context *ctx );
+
+/**
+ * \brief          MD5 process buffer
+ *
+ * \deprecated     Superseded by mbedtls_md5_update_ret() in 2.7.0
+ *
+ * \param ctx      MD5 context
+ * \param input    buffer holding the data
+ * \param ilen     length of the input data
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+void esp_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          MD5 final digest
+ *
+ * \deprecated     Superseded by mbedtls_md5_finish_ret() in 2.7.0
+ *
+ * \param ctx      MD5 context
+ * \param output   MD5 checksum result
+ *
+ * \warning        MD5 is considered a weak message digest and its use
+ *                 constitutes a security risk. We recommend considering
+ *                 stronger message digests instead.
+ *
+ */
+void esp_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] );
+
+#ifdef __cplusplus
+}
+#endif