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

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

1 files changed, 321 insertions, 0 deletions

diff --git a/programs/psa/crypto_examples.c b/programs/psa/crypto_examples.c
new file mode 100644
index 00000000000..b755f09ef2e
--- /dev/null
+++ b/programs/psa/crypto_examples.c
@@ -0,0 +1,321 @@
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#include "psa/crypto.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(predicate)                                                   \
+    do                                                                        \
+    {                                                                         \
+        if (!(predicate))                                                 \
+        {                                                                     \
+            printf("\tassertion failed at %s:%d - '%s'\r\n",         \
+                   __FILE__, __LINE__, #predicate);                  \
+            goto exit;                                                        \
+        }                                                                     \
+    } while (0)
+
+#define ASSERT_STATUS(actual, expected)                                     \
+    do                                                                        \
+    {                                                                         \
+        if ((actual) != (expected))                                      \
+        {                                                                     \
+            printf("\tassertion failed at %s:%d - "                  \
+                   "actual:%d expected:%d\r\n", __FILE__, __LINE__,  \
+                   (psa_status_t) actual, (psa_status_t) expected); \
+            goto exit;                                                        \
+        }                                                                     \
+    } while (0)
+
+#if !defined(MBEDTLS_PSA_CRYPTO_C) || !defined(MBEDTLS_AES_C) || \
+    !defined(MBEDTLS_CIPHER_MODE_CBC) || !defined(MBEDTLS_CIPHER_MODE_CTR) || \
+    !defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) || \
+    defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER)
+int main(void)
+{
+    printf("MBEDTLS_PSA_CRYPTO_C and/or MBEDTLS_AES_C and/or "
+           "MBEDTLS_CIPHER_MODE_CBC and/or MBEDTLS_CIPHER_MODE_CTR "
+           "and/or MBEDTLS_CIPHER_MODE_WITH_PADDING "
+           "not defined and/or MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER"
+           " defined.\r\n");
+    return 0;
+}
+#else
+
+static psa_status_t cipher_operation(psa_cipher_operation_t *operation,
+                                     const uint8_t *input,
+                                     size_t input_size,
+                                     size_t part_size,
+                                     uint8_t *output,
+                                     size_t output_size,
+                                     size_t *output_len)
+{
+    psa_status_t status;
+    size_t bytes_to_write = 0, bytes_written = 0, len = 0;
+
+    *output_len = 0;
+    while (bytes_written != input_size) {
+        bytes_to_write = (input_size - bytes_written > part_size ?
+                          part_size :
+                          input_size - bytes_written);
+
+        status = psa_cipher_update(operation, input + bytes_written,
+                                   bytes_to_write, output + *output_len,
+                                   output_size - *output_len, &len);
+        ASSERT_STATUS(status, PSA_SUCCESS);
+
+        bytes_written += bytes_to_write;
+        *output_len += len;
+    }
+
+    status = psa_cipher_finish(operation, output + *output_len,
+                               output_size - *output_len, &len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+    *output_len += len;
+
+exit:
+    return status;
+}
+
+static psa_status_t cipher_encrypt(psa_key_id_t key,
+                                   psa_algorithm_t alg,
+                                   uint8_t *iv,
+                                   size_t iv_size,
+                                   const uint8_t *input,
+                                   size_t input_size,
+                                   size_t part_size,
+                                   uint8_t *output,
+                                   size_t output_size,
+                                   size_t *output_len)
+{
+    psa_status_t status;
+    psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
+    size_t iv_len = 0;
+
+    memset(&operation, 0, sizeof(operation));
+    status = psa_cipher_encrypt_setup(&operation, key, alg);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = psa_cipher_generate_iv(&operation, iv, iv_size, &iv_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_operation(&operation, input, input_size, part_size,
+                              output, output_size, output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+exit:
+    psa_cipher_abort(&operation);
+    return status;
+}
+
+static psa_status_t cipher_decrypt(psa_key_id_t key,
+                                   psa_algorithm_t alg,
+                                   const uint8_t *iv,
+                                   size_t iv_size,
+                                   const uint8_t *input,
+                                   size_t input_size,
+                                   size_t part_size,
+                                   uint8_t *output,
+                                   size_t output_size,
+                                   size_t *output_len)
+{
+    psa_status_t status;
+    psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
+
+    memset(&operation, 0, sizeof(operation));
+    status = psa_cipher_decrypt_setup(&operation, key, alg);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = psa_cipher_set_iv(&operation, iv, iv_size);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_operation(&operation, input, input_size, part_size,
+                              output, output_size, output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+exit:
+    psa_cipher_abort(&operation);
+    return status;
+}
+
+static psa_status_t
+cipher_example_encrypt_decrypt_aes_cbc_nopad_1_block(void)
+{
+    enum {
+        block_size = PSA_BLOCK_CIPHER_BLOCK_LENGTH(PSA_KEY_TYPE_AES),
+        key_bits = 256,
+        part_size = block_size,
+    };
+    const psa_algorithm_t alg = PSA_ALG_CBC_NO_PADDING;
+
+    psa_status_t status;
+    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+    psa_key_id_t key = 0;
+    size_t output_len = 0;
+    uint8_t iv[block_size];
+    uint8_t input[block_size];
+    uint8_t encrypt[block_size];
+    uint8_t decrypt[block_size];
+
+    status = psa_generate_random(input, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    psa_set_key_usage_flags(&attributes,
+                            PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT);
+    psa_set_key_algorithm(&attributes, alg);
+    psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
+    psa_set_key_bits(&attributes, key_bits);
+
+    status = psa_generate_key(&attributes, &key);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_encrypt(key, alg, iv, sizeof(iv),
+                            input, sizeof(input), part_size,
+                            encrypt, sizeof(encrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_decrypt(key, alg, iv, sizeof(iv),
+                            encrypt, output_len, part_size,
+                            decrypt, sizeof(decrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = memcmp(input, decrypt, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+exit:
+    psa_destroy_key(key);
+    return status;
+}
+
+static psa_status_t cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi(void)
+{
+    enum {
+        block_size = PSA_BLOCK_CIPHER_BLOCK_LENGTH(PSA_KEY_TYPE_AES),
+        key_bits = 256,
+        input_size = 100,
+        part_size = 10,
+    };
+
+    const psa_algorithm_t alg = PSA_ALG_CBC_PKCS7;
+
+    psa_status_t status;
+    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+    psa_key_id_t key = 0;
+    size_t output_len = 0;
+    uint8_t iv[block_size], input[input_size],
+            encrypt[input_size + block_size], decrypt[input_size + block_size];
+
+    status = psa_generate_random(input, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    psa_set_key_usage_flags(&attributes,
+                            PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT);
+    psa_set_key_algorithm(&attributes, alg);
+    psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
+    psa_set_key_bits(&attributes, key_bits);
+
+    status = psa_generate_key(&attributes, &key);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_encrypt(key, alg, iv, sizeof(iv),
+                            input, sizeof(input), part_size,
+                            encrypt, sizeof(encrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_decrypt(key, alg, iv, sizeof(iv),
+                            encrypt, output_len, part_size,
+                            decrypt, sizeof(decrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = memcmp(input, decrypt, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+exit:
+    psa_destroy_key(key);
+    return status;
+}
+
+static psa_status_t cipher_example_encrypt_decrypt_aes_ctr_multi(void)
+{
+    enum {
+        block_size = PSA_BLOCK_CIPHER_BLOCK_LENGTH(PSA_KEY_TYPE_AES),
+        key_bits = 256,
+        input_size = 100,
+        part_size = 10,
+    };
+    const psa_algorithm_t alg = PSA_ALG_CTR;
+
+    psa_status_t status;
+    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+    psa_key_id_t key = 0;
+    size_t output_len = 0;
+    uint8_t iv[block_size], input[input_size], encrypt[input_size],
+            decrypt[input_size];
+
+    status = psa_generate_random(input, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    psa_set_key_usage_flags(&attributes,
+                            PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT);
+    psa_set_key_algorithm(&attributes, alg);
+    psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
+    psa_set_key_bits(&attributes, key_bits);
+
+    status = psa_generate_key(&attributes, &key);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_encrypt(key, alg, iv, sizeof(iv),
+                            input, sizeof(input), part_size,
+                            encrypt, sizeof(encrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = cipher_decrypt(key, alg, iv, sizeof(iv),
+                            encrypt, output_len, part_size,
+                            decrypt, sizeof(decrypt), &output_len);
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+    status = memcmp(input, decrypt, sizeof(input));
+    ASSERT_STATUS(status, PSA_SUCCESS);
+
+exit:
+    psa_destroy_key(key);
+    return status;
+}
+
+static void cipher_examples(void)
+{
+    psa_status_t status;
+
+    printf("cipher encrypt/decrypt AES CBC no padding:\r\n");
+    status = cipher_example_encrypt_decrypt_aes_cbc_nopad_1_block();
+    if (status == PSA_SUCCESS) {
+        printf("\tsuccess!\r\n");
+    }
+
+    printf("cipher encrypt/decrypt AES CBC PKCS7 multipart:\r\n");
+    status = cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi();
+    if (status == PSA_SUCCESS) {
+        printf("\tsuccess!\r\n");
+    }
+
+    printf("cipher encrypt/decrypt AES CTR multipart:\r\n");
+    status = cipher_example_encrypt_decrypt_aes_ctr_multi();
+    if (status == PSA_SUCCESS) {
+        printf("\tsuccess!\r\n");
+    }
+}
+
+int main(void)
+{
+    ASSERT(psa_crypto_init() == PSA_SUCCESS);
+    cipher_examples();
+exit:
+    mbedtls_psa_crypto_free();
+    return 0;
+}
+#endif /* MBEDTLS_PSA_CRYPTO_C && MBEDTLS_AES_C && MBEDTLS_CIPHER_MODE_CBC &&
+          MBEDTLS_CIPHER_MODE_CTR && MBEDTLS_CIPHER_MODE_WITH_PADDING */