Squashed 'lib/mbedtls/external/mbedtls/' content from commit 2ca6c285a0dd

git-subtree-dir: lib/mbedtls/external/mbedtls
git-subtree-split: 2ca6c285a0dd3f33982dd57299012dacab1ff206

1 files changed, 1108 insertions, 0 deletions

diff --git a/library/md.c b/library/md.c
new file mode 100644
index 00000000000..12a3ea2374a
--- /dev/null
+++ b/library/md.c
@@ -0,0 +1,1108 @@
+/**
+ * \file md.c
+ *
+ * \brief Generic message digest wrapper for Mbed TLS
+ *
+ * \author Adriaan de Jong <dejong@fox-it.com>
+ *
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#include "common.h"
+
+/*
+ * Availability of functions in this module is controlled by two
+ * feature macros:
+ * - MBEDTLS_MD_C enables the whole module;
+ * - MBEDTLS_MD_LIGHT enables only functions for hashing and accessing
+ * most hash metadata (everything except string names); is it
+ * automatically set whenever MBEDTLS_MD_C is defined.
+ *
+ * In this file, functions from MD_LIGHT are at the top, MD_C at the end.
+ *
+ * In the future we may want to change the contract of some functions
+ * (behaviour with NULL arguments) depending on whether MD_C is defined or
+ * only MD_LIGHT. Also, the exact scope of MD_LIGHT might vary.
+ *
+ * For these reasons, we're keeping MD_LIGHT internal for now.
+ */
+#if defined(MBEDTLS_MD_LIGHT)
+
+#include "mbedtls/md.h"
+#include "md_wrap.h"
+#include "mbedtls/platform_util.h"
+#include "mbedtls/error.h"
+
+#include "mbedtls/md5.h"
+#include "mbedtls/ripemd160.h"
+#include "mbedtls/sha1.h"
+#include "mbedtls/sha256.h"
+#include "mbedtls/sha512.h"
+#include "mbedtls/sha3.h"
+
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+#include <psa/crypto.h>
+#include "md_psa.h"
+#include "psa_util_internal.h"
+#endif
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+#include "psa_crypto_core.h"
+#endif
+
+#include "mbedtls/platform.h"
+
+#include <string.h>
+
+#if defined(MBEDTLS_FS_IO)
+#include <stdio.h>
+#endif
+
+/* See comment above MBEDTLS_MD_MAX_SIZE in md.h */
+#if defined(MBEDTLS_PSA_CRYPTO_C) && MBEDTLS_MD_MAX_SIZE < PSA_HASH_MAX_SIZE
+#error "Internal error: MBEDTLS_MD_MAX_SIZE < PSA_HASH_MAX_SIZE"
+#endif
+
+#if defined(MBEDTLS_MD_C)
+#define MD_INFO(type, out_size, block_size) type, out_size, block_size,
+#else
+#define MD_INFO(type, out_size, block_size) type, out_size,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_MD5)
+static const mbedtls_md_info_t mbedtls_md5_info = {
+    MD_INFO(MBEDTLS_MD_MD5, 16, 64)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+static const mbedtls_md_info_t mbedtls_ripemd160_info = {
+    MD_INFO(MBEDTLS_MD_RIPEMD160, 20, 64)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA1)
+static const mbedtls_md_info_t mbedtls_sha1_info = {
+    MD_INFO(MBEDTLS_MD_SHA1, 20, 64)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA224)
+static const mbedtls_md_info_t mbedtls_sha224_info = {
+    MD_INFO(MBEDTLS_MD_SHA224, 28, 64)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA256)
+static const mbedtls_md_info_t mbedtls_sha256_info = {
+    MD_INFO(MBEDTLS_MD_SHA256, 32, 64)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA384)
+static const mbedtls_md_info_t mbedtls_sha384_info = {
+    MD_INFO(MBEDTLS_MD_SHA384, 48, 128)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA512)
+static const mbedtls_md_info_t mbedtls_sha512_info = {
+    MD_INFO(MBEDTLS_MD_SHA512, 64, 128)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_224)
+static const mbedtls_md_info_t mbedtls_sha3_224_info = {
+    MD_INFO(MBEDTLS_MD_SHA3_224, 28, 144)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_256)
+static const mbedtls_md_info_t mbedtls_sha3_256_info = {
+    MD_INFO(MBEDTLS_MD_SHA3_256, 32, 136)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_384)
+static const mbedtls_md_info_t mbedtls_sha3_384_info = {
+    MD_INFO(MBEDTLS_MD_SHA3_384, 48, 104)
+};
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_512)
+static const mbedtls_md_info_t mbedtls_sha3_512_info = {
+    MD_INFO(MBEDTLS_MD_SHA3_512, 64, 72)
+};
+#endif
+
+const mbedtls_md_info_t *mbedtls_md_info_from_type(mbedtls_md_type_t md_type)
+{
+    switch (md_type) {
+#if defined(MBEDTLS_MD_CAN_MD5)
+        case MBEDTLS_MD_MD5:
+            return &mbedtls_md5_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+        case MBEDTLS_MD_RIPEMD160:
+            return &mbedtls_ripemd160_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA1)
+        case MBEDTLS_MD_SHA1:
+            return &mbedtls_sha1_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA224)
+        case MBEDTLS_MD_SHA224:
+            return &mbedtls_sha224_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA256)
+        case MBEDTLS_MD_SHA256:
+            return &mbedtls_sha256_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA384)
+        case MBEDTLS_MD_SHA384:
+            return &mbedtls_sha384_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA512)
+        case MBEDTLS_MD_SHA512:
+            return &mbedtls_sha512_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_224)
+        case MBEDTLS_MD_SHA3_224:
+            return &mbedtls_sha3_224_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_256)
+        case MBEDTLS_MD_SHA3_256:
+            return &mbedtls_sha3_256_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_384)
+        case MBEDTLS_MD_SHA3_384:
+            return &mbedtls_sha3_384_info;
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_512)
+        case MBEDTLS_MD_SHA3_512:
+            return &mbedtls_sha3_512_info;
+#endif
+        default:
+            return NULL;
+    }
+}
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+static psa_algorithm_t psa_alg_of_md(const mbedtls_md_info_t *info)
+{
+    switch (info->type) {
+#if defined(MBEDTLS_MD_MD5_VIA_PSA)
+        case MBEDTLS_MD_MD5:
+            return PSA_ALG_MD5;
+#endif
+#if defined(MBEDTLS_MD_RIPEMD160_VIA_PSA)
+        case MBEDTLS_MD_RIPEMD160:
+            return PSA_ALG_RIPEMD160;
+#endif
+#if defined(MBEDTLS_MD_SHA1_VIA_PSA)
+        case MBEDTLS_MD_SHA1:
+            return PSA_ALG_SHA_1;
+#endif
+#if defined(MBEDTLS_MD_SHA224_VIA_PSA)
+        case MBEDTLS_MD_SHA224:
+            return PSA_ALG_SHA_224;
+#endif
+#if defined(MBEDTLS_MD_SHA256_VIA_PSA)
+        case MBEDTLS_MD_SHA256:
+            return PSA_ALG_SHA_256;
+#endif
+#if defined(MBEDTLS_MD_SHA384_VIA_PSA)
+        case MBEDTLS_MD_SHA384:
+            return PSA_ALG_SHA_384;
+#endif
+#if defined(MBEDTLS_MD_SHA512_VIA_PSA)
+        case MBEDTLS_MD_SHA512:
+            return PSA_ALG_SHA_512;
+#endif
+#if defined(MBEDTLS_MD_SHA3_224_VIA_PSA)
+        case MBEDTLS_MD_SHA3_224:
+            return PSA_ALG_SHA3_224;
+#endif
+#if defined(MBEDTLS_MD_SHA3_256_VIA_PSA)
+        case MBEDTLS_MD_SHA3_256:
+            return PSA_ALG_SHA3_256;
+#endif
+#if defined(MBEDTLS_MD_SHA3_384_VIA_PSA)
+        case MBEDTLS_MD_SHA3_384:
+            return PSA_ALG_SHA3_384;
+#endif
+#if defined(MBEDTLS_MD_SHA3_512_VIA_PSA)
+        case MBEDTLS_MD_SHA3_512:
+            return PSA_ALG_SHA3_512;
+#endif
+        default:
+            return PSA_ALG_NONE;
+    }
+}
+
+static int md_can_use_psa(const mbedtls_md_info_t *info)
+{
+    psa_algorithm_t alg = psa_alg_of_md(info);
+    if (alg == PSA_ALG_NONE) {
+        return 0;
+    }
+
+    return psa_can_do_hash(alg);
+}
+#endif /* MBEDTLS_MD_SOME_PSA */
+
+void mbedtls_md_init(mbedtls_md_context_t *ctx)
+{
+    /* Note: this sets engine (if present) to MBEDTLS_MD_ENGINE_LEGACY */
+    memset(ctx, 0, sizeof(mbedtls_md_context_t));
+}
+
+void mbedtls_md_free(mbedtls_md_context_t *ctx)
+{
+    if (ctx == NULL || ctx->md_info == NULL) {
+        return;
+    }
+
+    if (ctx->md_ctx != NULL) {
+#if defined(MBEDTLS_MD_SOME_PSA)
+        if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+            psa_hash_abort(ctx->md_ctx);
+        } else
+#endif
+        switch (ctx->md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+            case MBEDTLS_MD_MD5:
+                mbedtls_md5_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+            case MBEDTLS_MD_RIPEMD160:
+                mbedtls_ripemd160_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA1_C)
+            case MBEDTLS_MD_SHA1:
+                mbedtls_sha1_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA224_C)
+            case MBEDTLS_MD_SHA224:
+                mbedtls_sha256_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA256_C)
+            case MBEDTLS_MD_SHA256:
+                mbedtls_sha256_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA384_C)
+            case MBEDTLS_MD_SHA384:
+                mbedtls_sha512_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA512_C)
+            case MBEDTLS_MD_SHA512:
+                mbedtls_sha512_free(ctx->md_ctx);
+                break;
+#endif
+#if defined(MBEDTLS_SHA3_C)
+            case MBEDTLS_MD_SHA3_224:
+            case MBEDTLS_MD_SHA3_256:
+            case MBEDTLS_MD_SHA3_384:
+            case MBEDTLS_MD_SHA3_512:
+                mbedtls_sha3_free(ctx->md_ctx);
+                break;
+#endif
+            default:
+                /* Shouldn't happen */
+                break;
+        }
+        mbedtls_free(ctx->md_ctx);
+    }
+
+#if defined(MBEDTLS_MD_C)
+    if (ctx->hmac_ctx != NULL) {
+        mbedtls_zeroize_and_free(ctx->hmac_ctx,
+                                 2 * ctx->md_info->block_size);
+    }
+#endif
+
+    mbedtls_platform_zeroize(ctx, sizeof(mbedtls_md_context_t));
+}
+
+int mbedtls_md_clone(mbedtls_md_context_t *dst,
+                     const mbedtls_md_context_t *src)
+{
+    if (dst == NULL || dst->md_info == NULL ||
+        src == NULL || src->md_info == NULL ||
+        dst->md_info != src->md_info) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (src->engine != dst->engine) {
+        /* This can happen with src set to legacy because PSA wasn't ready
+         * yet, and dst to PSA because it became ready in the meantime.
+         * We currently don't support that case (we'd need to re-allocate
+         * md_ctx to the size of the appropriate MD context). */
+        return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
+    }
+
+    if (src->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_status_t status = psa_hash_clone(src->md_ctx, dst->md_ctx);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
+    switch (src->md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            mbedtls_md5_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            mbedtls_ripemd160_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            mbedtls_sha1_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            mbedtls_sha256_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            mbedtls_sha256_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            mbedtls_sha512_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            mbedtls_sha512_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+        case MBEDTLS_MD_SHA3_256:
+        case MBEDTLS_MD_SHA3_384:
+        case MBEDTLS_MD_SHA3_512:
+            mbedtls_sha3_clone(dst->md_ctx, src->md_ctx);
+            break;
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    return 0;
+}
+
+#define ALLOC(type)                                                   \
+    do {                                                                \
+        ctx->md_ctx = mbedtls_calloc(1, sizeof(mbedtls_##type##_context)); \
+        if (ctx->md_ctx == NULL)                                       \
+        return MBEDTLS_ERR_MD_ALLOC_FAILED;                      \
+        mbedtls_##type##_init(ctx->md_ctx);                           \
+    }                                                                   \
+    while (0)
+
+int mbedtls_md_setup(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac)
+{
+#if defined(MBEDTLS_MD_C)
+    if (ctx == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    ctx->md_info = md_info;
+    ctx->md_ctx = NULL;
+#if defined(MBEDTLS_MD_C)
+    ctx->hmac_ctx = NULL;
+#else
+    if (hmac != 0) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (md_can_use_psa(ctx->md_info)) {
+        ctx->md_ctx = mbedtls_calloc(1, sizeof(psa_hash_operation_t));
+        if (ctx->md_ctx == NULL) {
+            return MBEDTLS_ERR_MD_ALLOC_FAILED;
+        }
+        ctx->engine = MBEDTLS_MD_ENGINE_PSA;
+    } else
+#endif
+    switch (md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            ALLOC(md5);
+            break;
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            ALLOC(ripemd160);
+            break;
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            ALLOC(sha1);
+            break;
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            ALLOC(sha256);
+            break;
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            ALLOC(sha256);
+            break;
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            ALLOC(sha512);
+            break;
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            ALLOC(sha512);
+            break;
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+        case MBEDTLS_MD_SHA3_256:
+        case MBEDTLS_MD_SHA3_384:
+        case MBEDTLS_MD_SHA3_512:
+            ALLOC(sha3);
+            break;
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+#if defined(MBEDTLS_MD_C)
+    if (hmac != 0) {
+        ctx->hmac_ctx = mbedtls_calloc(2, md_info->block_size);
+        if (ctx->hmac_ctx == NULL) {
+            mbedtls_md_free(ctx);
+            return MBEDTLS_ERR_MD_ALLOC_FAILED;
+        }
+    }
+#endif
+
+    return 0;
+}
+#undef ALLOC
+
+int mbedtls_md_starts(mbedtls_md_context_t *ctx)
+{
+#if defined(MBEDTLS_MD_C)
+    if (ctx == NULL || ctx->md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_algorithm_t alg = psa_alg_of_md(ctx->md_info);
+        psa_hash_abort(ctx->md_ctx);
+        psa_status_t status = psa_hash_setup(ctx->md_ctx, alg);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
+    switch (ctx->md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            return mbedtls_md5_starts(ctx->md_ctx);
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            return mbedtls_ripemd160_starts(ctx->md_ctx);
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            return mbedtls_sha1_starts(ctx->md_ctx);
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            return mbedtls_sha256_starts(ctx->md_ctx, 1);
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            return mbedtls_sha256_starts(ctx->md_ctx, 0);
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            return mbedtls_sha512_starts(ctx->md_ctx, 1);
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            return mbedtls_sha512_starts(ctx->md_ctx, 0);
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+            return mbedtls_sha3_starts(ctx->md_ctx, MBEDTLS_SHA3_224);
+        case MBEDTLS_MD_SHA3_256:
+            return mbedtls_sha3_starts(ctx->md_ctx, MBEDTLS_SHA3_256);
+        case MBEDTLS_MD_SHA3_384:
+            return mbedtls_sha3_starts(ctx->md_ctx, MBEDTLS_SHA3_384);
+        case MBEDTLS_MD_SHA3_512:
+            return mbedtls_sha3_starts(ctx->md_ctx, MBEDTLS_SHA3_512);
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+}
+
+int mbedtls_md_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen)
+{
+#if defined(MBEDTLS_MD_C)
+    if (ctx == NULL || ctx->md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_status_t status = psa_hash_update(ctx->md_ctx, input, ilen);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
+    switch (ctx->md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            return mbedtls_md5_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            return mbedtls_ripemd160_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            return mbedtls_sha1_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            return mbedtls_sha256_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            return mbedtls_sha256_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            return mbedtls_sha512_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            return mbedtls_sha512_update(ctx->md_ctx, input, ilen);
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+        case MBEDTLS_MD_SHA3_256:
+        case MBEDTLS_MD_SHA3_384:
+        case MBEDTLS_MD_SHA3_512:
+            return mbedtls_sha3_update(ctx->md_ctx, input, ilen);
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+}
+
+int mbedtls_md_finish(mbedtls_md_context_t *ctx, unsigned char *output)
+{
+#if defined(MBEDTLS_MD_C)
+    if (ctx == NULL || ctx->md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        size_t size = ctx->md_info->size;
+        psa_status_t status = psa_hash_finish(ctx->md_ctx,
+                                              output, size, &size);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
+    switch (ctx->md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            return mbedtls_md5_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            return mbedtls_ripemd160_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            return mbedtls_sha1_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            return mbedtls_sha256_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            return mbedtls_sha256_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            return mbedtls_sha512_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            return mbedtls_sha512_finish(ctx->md_ctx, output);
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+        case MBEDTLS_MD_SHA3_256:
+        case MBEDTLS_MD_SHA3_384:
+        case MBEDTLS_MD_SHA3_512:
+            return mbedtls_sha3_finish(ctx->md_ctx, output, ctx->md_info->size);
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+}
+
+int mbedtls_md(const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
+               unsigned char *output)
+{
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (md_can_use_psa(md_info)) {
+        size_t size = md_info->size;
+        psa_status_t status = psa_hash_compute(psa_alg_of_md(md_info),
+                                               input, ilen,
+                                               output, size, &size);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
+    switch (md_info->type) {
+#if defined(MBEDTLS_MD5_C)
+        case MBEDTLS_MD_MD5:
+            return mbedtls_md5(input, ilen, output);
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+        case MBEDTLS_MD_RIPEMD160:
+            return mbedtls_ripemd160(input, ilen, output);
+#endif
+#if defined(MBEDTLS_SHA1_C)
+        case MBEDTLS_MD_SHA1:
+            return mbedtls_sha1(input, ilen, output);
+#endif
+#if defined(MBEDTLS_SHA224_C)
+        case MBEDTLS_MD_SHA224:
+            return mbedtls_sha256(input, ilen, output, 1);
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_MD_SHA256:
+            return mbedtls_sha256(input, ilen, output, 0);
+#endif
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_MD_SHA384:
+            return mbedtls_sha512(input, ilen, output, 1);
+#endif
+#if defined(MBEDTLS_SHA512_C)
+        case MBEDTLS_MD_SHA512:
+            return mbedtls_sha512(input, ilen, output, 0);
+#endif
+#if defined(MBEDTLS_SHA3_C)
+        case MBEDTLS_MD_SHA3_224:
+            return mbedtls_sha3(MBEDTLS_SHA3_224, input, ilen, output, md_info->size);
+        case MBEDTLS_MD_SHA3_256:
+            return mbedtls_sha3(MBEDTLS_SHA3_256, input, ilen, output, md_info->size);
+        case MBEDTLS_MD_SHA3_384:
+            return mbedtls_sha3(MBEDTLS_SHA3_384, input, ilen, output, md_info->size);
+        case MBEDTLS_MD_SHA3_512:
+            return mbedtls_sha3(MBEDTLS_SHA3_512, input, ilen, output, md_info->size);
+#endif
+        default:
+            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+}
+
+unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info)
+{
+    if (md_info == NULL) {
+        return 0;
+    }
+
+    return md_info->size;
+}
+
+mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info)
+{
+    if (md_info == NULL) {
+        return MBEDTLS_MD_NONE;
+    }
+
+    return md_info->type;
+}
+
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+int mbedtls_md_error_from_psa(psa_status_t status)
+{
+    return PSA_TO_MBEDTLS_ERR_LIST(status, psa_to_md_errors,
+                                   psa_generic_status_to_mbedtls);
+}
+#endif /* MBEDTLS_PSA_CRYPTO_C */
+
+
+/************************************************************************
+ * Functions above this separator are part of MBEDTLS_MD_LIGHT,         *
+ * functions below are only available when MBEDTLS_MD_C is set.         *
+ ************************************************************************/
+#if defined(MBEDTLS_MD_C)
+
+/*
+ * Reminder: update profiles in x509_crt.c when adding a new hash!
+ */
+static const int supported_digests[] = {
+
+#if defined(MBEDTLS_MD_CAN_SHA512)
+    MBEDTLS_MD_SHA512,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA384)
+    MBEDTLS_MD_SHA384,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA256)
+    MBEDTLS_MD_SHA256,
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA224)
+    MBEDTLS_MD_SHA224,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA1)
+    MBEDTLS_MD_SHA1,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+    MBEDTLS_MD_RIPEMD160,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_MD5)
+    MBEDTLS_MD_MD5,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_224)
+    MBEDTLS_MD_SHA3_224,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_256)
+    MBEDTLS_MD_SHA3_256,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_384)
+    MBEDTLS_MD_SHA3_384,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA3_512)
+    MBEDTLS_MD_SHA3_512,
+#endif
+
+    MBEDTLS_MD_NONE
+};
+
+const int *mbedtls_md_list(void)
+{
+    return supported_digests;
+}
+
+typedef struct {
+    const char *md_name;
+    mbedtls_md_type_t md_type;
+} md_name_entry;
+
+static const md_name_entry md_names[] = {
+#if defined(MBEDTLS_MD_CAN_MD5)
+    { "MD5", MBEDTLS_MD_MD5 },
+#endif
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+    { "RIPEMD160", MBEDTLS_MD_RIPEMD160 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA1)
+    { "SHA1", MBEDTLS_MD_SHA1 },
+    { "SHA", MBEDTLS_MD_SHA1 }, // compatibility fallback
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA224)
+    { "SHA224", MBEDTLS_MD_SHA224 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA256)
+    { "SHA256", MBEDTLS_MD_SHA256 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA384)
+    { "SHA384", MBEDTLS_MD_SHA384 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA512)
+    { "SHA512", MBEDTLS_MD_SHA512 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_224)
+    { "SHA3-224", MBEDTLS_MD_SHA3_224 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_256)
+    { "SHA3-256", MBEDTLS_MD_SHA3_256 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_384)
+    { "SHA3-384", MBEDTLS_MD_SHA3_384 },
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA3_512)
+    { "SHA3-512", MBEDTLS_MD_SHA3_512 },
+#endif
+    { NULL, MBEDTLS_MD_NONE },
+};
+
+const mbedtls_md_info_t *mbedtls_md_info_from_string(const char *md_name)
+{
+    if (NULL == md_name) {
+        return NULL;
+    }
+
+    const md_name_entry *entry = md_names;
+    while (entry->md_name != NULL &&
+           strcmp(entry->md_name, md_name) != 0) {
+        ++entry;
+    }
+
+    return mbedtls_md_info_from_type(entry->md_type);
+}
+
+const char *mbedtls_md_get_name(const mbedtls_md_info_t *md_info)
+{
+    if (md_info == NULL) {
+        return NULL;
+    }
+
+    const md_name_entry *entry = md_names;
+    while (entry->md_type != MBEDTLS_MD_NONE &&
+           entry->md_type != md_info->type) {
+        ++entry;
+    }
+
+    return entry->md_name;
+}
+
+const mbedtls_md_info_t *mbedtls_md_info_from_ctx(
+    const mbedtls_md_context_t *ctx)
+{
+    if (ctx == NULL) {
+        return NULL;
+    }
+
+    return ctx->MBEDTLS_PRIVATE(md_info);
+}
+
+#if defined(MBEDTLS_FS_IO)
+int mbedtls_md_file(const mbedtls_md_info_t *md_info, const char *path, unsigned char *output)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    FILE *f;
+    size_t n;
+    mbedtls_md_context_t ctx;
+    unsigned char buf[1024];
+
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    if ((f = fopen(path, "rb")) == NULL) {
+        return MBEDTLS_ERR_MD_FILE_IO_ERROR;
+    }
+
+    /* Ensure no stdio buffering of secrets, as such buffers cannot be wiped. */
+    mbedtls_setbuf(f, NULL);
+
+    mbedtls_md_init(&ctx);
+
+    if ((ret = mbedtls_md_setup(&ctx, md_info, 0)) != 0) {
+        goto cleanup;
+    }
+
+    if ((ret = mbedtls_md_starts(&ctx)) != 0) {
+        goto cleanup;
+    }
+
+    while ((n = fread(buf, 1, sizeof(buf), f)) > 0) {
+        if ((ret = mbedtls_md_update(&ctx, buf, n)) != 0) {
+            goto cleanup;
+        }
+    }
+
+    if (ferror(f) != 0) {
+        ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
+    } else {
+        ret = mbedtls_md_finish(&ctx, output);
+    }
+
+cleanup:
+    mbedtls_platform_zeroize(buf, sizeof(buf));
+    fclose(f);
+    mbedtls_md_free(&ctx);
+
+    return ret;
+}
+#endif /* MBEDTLS_FS_IO */
+
+int mbedtls_md_hmac_starts(mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    unsigned char sum[MBEDTLS_MD_MAX_SIZE];
+    unsigned char *ipad, *opad;
+
+    if (ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    if (keylen > (size_t) ctx->md_info->block_size) {
+        if ((ret = mbedtls_md_starts(ctx)) != 0) {
+            goto cleanup;
+        }
+        if ((ret = mbedtls_md_update(ctx, key, keylen)) != 0) {
+            goto cleanup;
+        }
+        if ((ret = mbedtls_md_finish(ctx, sum)) != 0) {
+            goto cleanup;
+        }
+
+        keylen = ctx->md_info->size;
+        key = sum;
+    }
+
+    ipad = (unsigned char *) ctx->hmac_ctx;
+    opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
+
+    memset(ipad, 0x36, ctx->md_info->block_size);
+    memset(opad, 0x5C, ctx->md_info->block_size);
+
+    mbedtls_xor(ipad, ipad, key, keylen);
+    mbedtls_xor(opad, opad, key, keylen);
+
+    if ((ret = mbedtls_md_starts(ctx)) != 0) {
+        goto cleanup;
+    }
+    if ((ret = mbedtls_md_update(ctx, ipad,
+                                 ctx->md_info->block_size)) != 0) {
+        goto cleanup;
+    }
+
+cleanup:
+    mbedtls_platform_zeroize(sum, sizeof(sum));
+
+    return ret;
+}
+
+int mbedtls_md_hmac_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen)
+{
+    if (ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    return mbedtls_md_update(ctx, input, ilen);
+}
+
+int mbedtls_md_hmac_finish(mbedtls_md_context_t *ctx, unsigned char *output)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    unsigned char tmp[MBEDTLS_MD_MAX_SIZE];
+    unsigned char *opad;
+
+    if (ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
+
+    if ((ret = mbedtls_md_finish(ctx, tmp)) != 0) {
+        return ret;
+    }
+    if ((ret = mbedtls_md_starts(ctx)) != 0) {
+        return ret;
+    }
+    if ((ret = mbedtls_md_update(ctx, opad,
+                                 ctx->md_info->block_size)) != 0) {
+        return ret;
+    }
+    if ((ret = mbedtls_md_update(ctx, tmp,
+                                 ctx->md_info->size)) != 0) {
+        return ret;
+    }
+    return mbedtls_md_finish(ctx, output);
+}
+
+int mbedtls_md_hmac_reset(mbedtls_md_context_t *ctx)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    unsigned char *ipad;
+
+    if (ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    ipad = (unsigned char *) ctx->hmac_ctx;
+
+    if ((ret = mbedtls_md_starts(ctx)) != 0) {
+        return ret;
+    }
+    return mbedtls_md_update(ctx, ipad, ctx->md_info->block_size);
+}
+
+int mbedtls_md_hmac(const mbedtls_md_info_t *md_info,
+                    const unsigned char *key, size_t keylen,
+                    const unsigned char *input, size_t ilen,
+                    unsigned char *output)
+{
+    mbedtls_md_context_t ctx;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+
+    mbedtls_md_init(&ctx);
+
+    if ((ret = mbedtls_md_setup(&ctx, md_info, 1)) != 0) {
+        goto cleanup;
+    }
+
+    if ((ret = mbedtls_md_hmac_starts(&ctx, key, keylen)) != 0) {
+        goto cleanup;
+    }
+    if ((ret = mbedtls_md_hmac_update(&ctx, input, ilen)) != 0) {
+        goto cleanup;
+    }
+    if ((ret = mbedtls_md_hmac_finish(&ctx, output)) != 0) {
+        goto cleanup;
+    }
+
+cleanup:
+    mbedtls_md_free(&ctx);
+
+    return ret;
+}
+
+#endif /* MBEDTLS_MD_C */
+
+#endif /* MBEDTLS_MD_LIGHT */