diff --git a/include/psa/crypto_builtin_cipher.h b/include/psa/crypto_builtin_cipher.h
new file mode 100644
index 0000000..1c6e4c5
--- /dev/null
+++ b/include/psa/crypto_builtin_cipher.h
@@ -0,0 +1,59 @@
+/*
+ *  Context structure declaration of the software-based driver which performs
+ *  cipher operations through the PSA Crypto driver dispatch layer.
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  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 PSA_CRYPTO_BUILTIN_CIPHER_H
+#define PSA_CRYPTO_BUILTIN_CIPHER_H
+
+#include <psa/crypto_driver_common.h>
+#include "mbedtls/cipher.h"
+
+typedef struct {
+    /** Context structure for the Mbed TLS cipher implementation. */
+    psa_algorithm_t alg;
+    uint8_t iv_size;
+    uint8_t block_size;
+    mbedtls_cipher_context_t cipher;
+} mbedtls_psa_cipher_operation_t;
+
+#define MBEDTLS_PSA_CIPHER_OPERATION_INIT {0, 0, 0, {0}}
+
+/*
+ * BEYOND THIS POINT, TEST DRIVER DECLARATIONS ONLY.
+ */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+
+typedef mbedtls_psa_cipher_operation_t
+        mbedtls_transparent_test_driver_cipher_operation_t;
+
+typedef struct {
+    unsigned int initialised : 1;
+    mbedtls_transparent_test_driver_cipher_operation_t ctx;
+} mbedtls_opaque_test_driver_cipher_operation_t;
+
+#define MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT \
+     MBEDTLS_PSA_CIPHER_OPERATION_INIT
+
+#define MBEDTLS_OPAQUE_TEST_DRIVER_CIPHER_OPERATION_INIT \
+     { 0, MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT }
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+
+#endif /* PSA_CRYPTO_BUILTIN_CIPHER_H */
diff --git a/include/psa/crypto_driver_contexts.h b/include/psa/crypto_driver_contexts.h
index fdf178f..f3f08b8 100644
--- a/include/psa/crypto_driver_contexts.h
+++ b/include/psa/crypto_driver_contexts.h
@@ -31,6 +31,7 @@
 
 /* Include the context structure definitions for the Mbed TLS software drivers */
 #include "psa/crypto_builtin_hash.h"
+#include "psa/crypto_builtin_cipher.h"
 
 /* Define the context to be used for an operation that is executed through the
  * PSA Driver wrapper layer as the union of all possible driver's contexts.
@@ -47,5 +48,17 @@
 #endif
 } psa_driver_hash_context_t;
 
+typedef union {
+    unsigned dummy; /* Make sure this structure is always non-empty */
+    mbedtls_psa_cipher_operation_t mbedtls_ctx;
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+    mbedtls_transparent_test_driver_cipher_operation_t
+        transparent_test_driver_ctx;
+
+    mbedtls_opaque_test_driver_cipher_operation_t
+        opaque_test_driver_ctx;
+#endif
+} psa_driver_cipher_context_t;
+
 #endif /* PSA_CRYPTO_DRIVER_CONTEXTS_H */
 /* End of automatically generated file. */
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 52f4973..0ef885d 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -65,18 +65,12 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
-#include "mbedtls/cipher.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/gcm.h"
 
 /* Include the context definition for the compiled-in drivers */
 #include "psa/crypto_driver_contexts.h"
 
-typedef struct {
-    /** Context structure for the assigned driver, when id is not zero. */
-    void* ctx;
-} psa_operation_driver_context_t;
-
 struct psa_hash_operation_s
 {
     /** Unique ID indicating which driver got assigned to do the
@@ -136,14 +130,6 @@
     return( v );
 }
 
-typedef struct {
-    /** Context structure for the Mbed TLS cipher implementation. */
-    psa_algorithm_t alg;
-    uint8_t iv_size;
-    uint8_t block_size;
-    mbedtls_cipher_context_t cipher;
-} mbedtls_psa_cipher_operation_t;
-
 struct psa_cipher_operation_s
 {
     /** Unique ID indicating which driver got assigned to do the
@@ -156,12 +142,8 @@
 
     unsigned int iv_required : 1;
     unsigned int iv_set : 1;
-    union
-    {
-        unsigned dummy; /* Enable easier initializing of the union. */
-        mbedtls_psa_cipher_operation_t mbedtls_ctx;
-        psa_operation_driver_context_t driver;
-    } ctx;
+
+    psa_driver_cipher_context_t ctx;
 };
 
 #define PSA_CIPHER_OPERATION_INIT {0, 0, 0, {0}}
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
index af63fbf..75ea6f5 100644
--- a/library/psa_crypto_driver_wrappers.c
+++ b/library/psa_crypto_driver_wrappers.c
@@ -719,7 +719,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
         PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
-    void *driver_ctx = NULL;
 
     switch( location )
     {
@@ -728,28 +727,15 @@
              * cycle through all known transparent accelerators */
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
-            driver_ctx = mbedtls_calloc( 1,
-                             sizeof( test_transparent_cipher_operation_t ) );
-            if( driver_ctx == NULL )
-                return PSA_ERROR_INSUFFICIENT_MEMORY;
-
-            status = test_transparent_cipher_encrypt_setup( driver_ctx,
-                                                            attributes,
-                                                            key_buffer,
-                                                            key_buffer_size,
-                                                            alg );
+            status = test_transparent_cipher_encrypt_setup(
+                &operation->ctx.transparent_test_driver_ctx,
+                attributes,
+                key_buffer,
+                key_buffer_size,
+                alg );
             /* Declared with fallback == true */
             if( status == PSA_SUCCESS )
-            {
                 operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
-                operation->ctx.driver.ctx = driver_ctx;
-            }
-            else
-            {
-                mbedtls_platform_zeroize( driver_ctx,
-                    sizeof( test_transparent_cipher_operation_t ) );
-                mbedtls_free( driver_ctx );
-            }
 
             if( status != PSA_ERROR_NOT_SUPPORTED )
                 return( status );
@@ -770,27 +756,14 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
-            driver_ctx =
-                mbedtls_calloc( 1, sizeof(test_opaque_cipher_operation_t) );
-            if( driver_ctx == NULL )
-                return( PSA_ERROR_INSUFFICIENT_MEMORY );
+            status = test_opaque_cipher_encrypt_setup(
+                &operation->ctx.opaque_test_driver_ctx,
+                attributes,
+                key_buffer, key_buffer_size,
+                alg );
 
-            status = test_opaque_cipher_encrypt_setup( driver_ctx,
-                                                       attributes,
-                                                       key_buffer,
-                                                       key_buffer_size,
-                                                       alg );
             if( status == PSA_SUCCESS )
-            {
                 operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
-                operation->ctx.driver.ctx = driver_ctx;
-            }
-            else
-            {
-                mbedtls_platform_zeroize(
-                    driver_ctx, sizeof( test_opaque_cipher_operation_t ) );
-                mbedtls_free( driver_ctx );
-            }
 
             return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
@@ -798,7 +771,6 @@
         default:
             /* Key is declared with a lifetime not known to us */
             (void)status;
-            (void)driver_ctx;
             return( PSA_ERROR_INVALID_ARGUMENT );
     }
 }
@@ -812,7 +784,6 @@
     psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
     psa_key_location_t location =
         PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
-    void *driver_ctx = NULL;
 
     switch( location )
     {
@@ -821,28 +792,15 @@
              * cycle through all known transparent accelerators */
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
-            driver_ctx = mbedtls_calloc( 1,
-                             sizeof( test_transparent_cipher_operation_t ) );
-            if( driver_ctx == NULL )
-                return PSA_ERROR_INSUFFICIENT_MEMORY;
-
-            status = test_transparent_cipher_decrypt_setup( driver_ctx,
-                                                            attributes,
-                                                            key_buffer,
-                                                            key_buffer_size,
-                                                            alg );
+            status = test_transparent_cipher_decrypt_setup(
+                &operation->ctx.transparent_test_driver_ctx,
+                attributes,
+                key_buffer,
+                key_buffer_size,
+                alg );
             /* Declared with fallback == true */
             if( status == PSA_SUCCESS )
-            {
                 operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
-                operation->ctx.driver.ctx = driver_ctx;
-            }
-            else
-            {
-                mbedtls_platform_zeroize( driver_ctx,
-                    sizeof( test_transparent_cipher_operation_t ) );
-                mbedtls_free( driver_ctx );
-            }
 
             if( status != PSA_ERROR_NOT_SUPPORTED )
                 return( status );
@@ -863,27 +821,14 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
-            driver_ctx =
-                mbedtls_calloc( 1, sizeof(test_opaque_cipher_operation_t) );
-            if( driver_ctx == NULL )
-                return( PSA_ERROR_INSUFFICIENT_MEMORY );
+            status = test_opaque_cipher_decrypt_setup(
+                         &operation->ctx.opaque_test_driver_ctx,
+                         attributes,
+                         key_buffer, key_buffer_size,
+                         alg );
 
-            status = test_opaque_cipher_decrypt_setup( driver_ctx,
-                                                       attributes,
-                                                       key_buffer,
-                                                       key_buffer_size,
-                                                       alg );
             if( status == PSA_SUCCESS )
-            {
                 operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
-                operation->ctx.driver.ctx = driver_ctx;
-            }
-            else
-            {
-                mbedtls_platform_zeroize(
-                    driver_ctx, sizeof( test_opaque_cipher_operation_t ) );
-                mbedtls_free( driver_ctx );
-            }
 
             return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
@@ -891,7 +836,6 @@
         default:
             /* Key is declared with a lifetime not known to us */
             (void)status;
-            (void)driver_ctx;
             return( PSA_ERROR_INVALID_ARGUMENT );
     }
 }
@@ -913,14 +857,12 @@
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
             return( test_transparent_cipher_generate_iv(
-                        operation->ctx.driver.ctx,
-                        iv,
-                        iv_size,
-                        iv_length ) );
+                        &operation->ctx.transparent_test_driver_ctx,
+                        iv, iv_size, iv_length ) );
 
         case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
             return( test_opaque_cipher_generate_iv(
-                        operation->ctx.driver.ctx,
+                        &operation->ctx.opaque_test_driver_ctx,
                         iv,
                         iv_size,
                         iv_length ) );
@@ -946,14 +888,14 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
-            return( test_transparent_cipher_set_iv( operation->ctx.driver.ctx,
-                                                    iv,
-                                                    iv_length ) );
+            return( test_transparent_cipher_set_iv(
+                        &operation->ctx.transparent_test_driver_ctx,
+                        iv, iv_length ) );
 
         case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
-            return( test_opaque_cipher_set_iv( operation->ctx.driver.ctx,
-                                               iv,
-                                               iv_length ) );
+            return( test_opaque_cipher_set_iv(
+                        &operation->ctx.opaque_test_driver_ctx,
+                        iv, iv_length ) );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
     }
@@ -981,19 +923,16 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
-            return( test_transparent_cipher_update( operation->ctx.driver.ctx,
-                                                    input,
-                                                    input_length,
-                                                    output,
-                                                    output_size,
-                                                    output_length ) );
+            return( test_transparent_cipher_update(
+                        &operation->ctx.transparent_test_driver_ctx,
+                        input, input_length,
+                        output, output_size, output_length ) );
+
         case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
-            return( test_opaque_cipher_update( operation->ctx.driver.ctx,
-                                               input,
-                                               input_length,
-                                               output,
-                                               output_size,
-                                               output_length ) );
+            return( test_opaque_cipher_update(
+                        &operation->ctx.opaque_test_driver_ctx,
+                        input, input_length,
+                        output, output_size, output_length ) );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
     }
@@ -1019,16 +958,14 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
-            return( test_transparent_cipher_finish( operation->ctx.driver.ctx,
-                                                    output,
-                                                    output_size,
-                                                    output_length ) );
+            return( test_transparent_cipher_finish(
+                        &operation->ctx.transparent_test_driver_ctx,
+                        output, output_size, output_length ) );
 
         case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
-            return( test_opaque_cipher_finish( operation->ctx.driver.ctx,
-                                               output,
-                                               output_size,
-                                               output_length ) );
+            return( test_opaque_cipher_finish(
+                        &operation->ctx.opaque_test_driver_ctx,
+                        output, output_size, output_length ) );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
     }
@@ -1040,13 +977,6 @@
     psa_cipher_operation_t *operation )
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_operation_driver_context_t *driver_context = &operation->ctx.driver;
-
-    /* The object has (apparently) been initialized but it is not in use. It's
-     * ok to call abort on such an object, and there's nothing to do. */
-    if( ( operation->id != PSA_CRYPTO_MBED_TLS_DRIVER_ID ) &&
-        ( driver_context->ctx == NULL ) )
-        return( PSA_SUCCESS );
 
     switch( operation->id )
     {
@@ -1056,23 +986,19 @@
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
-            status = test_transparent_cipher_abort( driver_context->ctx );
+            status = test_transparent_cipher_abort(
+                         &operation->ctx.transparent_test_driver_ctx );
             mbedtls_platform_zeroize(
-                driver_context->ctx,
-                sizeof( test_transparent_cipher_operation_t ) );
-            mbedtls_free( driver_context->ctx );
-            driver_context->ctx = NULL;
-
+                &operation->ctx.transparent_test_driver_ctx,
+                sizeof( operation->ctx.transparent_test_driver_ctx ) );
             return( status );
 
         case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
-            status = test_opaque_cipher_abort( driver_context->ctx );
+            status = test_opaque_cipher_abort(
+                         &operation->ctx.opaque_test_driver_ctx );
             mbedtls_platform_zeroize(
-                driver_context->ctx,
-                sizeof( test_opaque_cipher_operation_t ) );
-            mbedtls_free( driver_context->ctx );
-            driver_context->ctx = NULL;
-
+                &operation->ctx.opaque_test_driver_ctx,
+                sizeof( operation->ctx.opaque_test_driver_ctx ) );
             return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
diff --git a/tests/include/test/drivers/cipher.h b/tests/include/test/drivers/cipher.h
index a1eb512..56b1159 100644
--- a/tests/include/test/drivers/cipher.h
+++ b/tests/include/test/drivers/cipher.h
@@ -31,12 +31,6 @@
 #include <psa/crypto.h>
 
 #include "mbedtls/cipher.h"
-typedef mbedtls_psa_cipher_operation_t test_transparent_cipher_operation_t;
-
-typedef struct{
-    unsigned int initialised : 1;
-    test_transparent_cipher_operation_t ctx;
-} test_opaque_cipher_operation_t;
 
 typedef struct {
     /* If non-null, on success, copy this to the output. */
@@ -73,44 +67,36 @@
     uint8_t *output, size_t output_size, size_t *output_length);
 
 psa_status_t test_transparent_cipher_encrypt_setup(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg);
 
 psa_status_t test_transparent_cipher_decrypt_setup(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg);
 
 psa_status_t test_transparent_cipher_abort(
-    test_transparent_cipher_operation_t *operation);
+    mbedtls_transparent_test_driver_cipher_operation_t *operation );
 
 psa_status_t test_transparent_cipher_generate_iv(
-    test_transparent_cipher_operation_t *operation,
-    uint8_t *iv,
-    size_t iv_size,
-    size_t *iv_length);
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
+    uint8_t *iv, size_t iv_size, size_t *iv_length);
 
 psa_status_t test_transparent_cipher_set_iv(
-    test_transparent_cipher_operation_t *operation,
-    const uint8_t *iv,
-    size_t iv_length);
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
+    const uint8_t *iv, size_t iv_length);
 
 psa_status_t test_transparent_cipher_update(
-    test_transparent_cipher_operation_t *operation,
-    const uint8_t *input,
-    size_t input_length,
-    uint8_t *output,
-    size_t output_size,
-    size_t *output_length);
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
+    const uint8_t *input, size_t input_length,
+    uint8_t *output, size_t output_size, size_t *output_length);
 
 psa_status_t test_transparent_cipher_finish(
-    test_transparent_cipher_operation_t *operation,
-    uint8_t *output,
-    size_t output_size,
-    size_t *output_length);
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
+    uint8_t *output, size_t output_size, size_t *output_length);
 
 /*
  * opaque versions
@@ -130,44 +116,36 @@
     uint8_t *output, size_t output_size, size_t *output_length);
 
 psa_status_t test_opaque_cipher_encrypt_setup(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg);
 
 psa_status_t test_opaque_cipher_decrypt_setup(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg);
 
 psa_status_t test_opaque_cipher_abort(
-    test_opaque_cipher_operation_t *operation);
+    mbedtls_opaque_test_driver_cipher_operation_t *operation);
 
 psa_status_t test_opaque_cipher_generate_iv(
-    test_opaque_cipher_operation_t *operation,
-    uint8_t *iv,
-    size_t iv_size,
-    size_t *iv_length);
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
+    uint8_t *iv, size_t iv_size, size_t *iv_length);
 
 psa_status_t test_opaque_cipher_set_iv(
-    test_opaque_cipher_operation_t *operation,
-    const uint8_t *iv,
-    size_t iv_length);
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
+    const uint8_t *iv, size_t iv_length);
 
 psa_status_t test_opaque_cipher_update(
-    test_opaque_cipher_operation_t *operation,
-    const uint8_t *input,
-    size_t input_length,
-    uint8_t *output,
-    size_t output_size,
-    size_t *output_length);
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
+    const uint8_t *input, size_t input_length,
+    uint8_t *output, size_t output_size, size_t *output_length);
 
 psa_status_t test_opaque_cipher_finish(
-    test_opaque_cipher_operation_t *operation,
-    uint8_t *output,
-    size_t output_size,
-    size_t *output_length);
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
+    uint8_t *output, size_t output_size, size_t *output_length);
 
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_TEST_DRIVERS_CIPHER_H */
diff --git a/tests/src/drivers/cipher.c b/tests/src/drivers/cipher.c
index 6a205b4..607cd94 100644
--- a/tests/src/drivers/cipher.c
+++ b/tests/src/drivers/cipher.c
@@ -206,7 +206,7 @@
 }
 
 psa_status_t test_transparent_cipher_encrypt_setup(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg)
@@ -230,7 +230,7 @@
 }
 
 psa_status_t test_transparent_cipher_decrypt_setup(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg)
@@ -248,7 +248,7 @@
 }
 
 psa_status_t test_transparent_cipher_abort(
-    test_transparent_cipher_operation_t *operation)
+    mbedtls_transparent_test_driver_cipher_operation_t *operation)
 {
     test_driver_cipher_hooks.hits++;
 
@@ -267,7 +267,7 @@
 }
 
 psa_status_t test_transparent_cipher_generate_iv(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     uint8_t *iv,
     size_t iv_size,
     size_t *iv_length)
@@ -284,7 +284,7 @@
 }
 
 psa_status_t test_transparent_cipher_set_iv(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const uint8_t *iv,
     size_t iv_length)
 {
@@ -299,7 +299,7 @@
 }
 
 psa_status_t test_transparent_cipher_update(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     const uint8_t *input,
     size_t input_length,
     uint8_t *output,
@@ -331,7 +331,7 @@
 }
 
 psa_status_t test_transparent_cipher_finish(
-    test_transparent_cipher_operation_t *operation,
+    mbedtls_transparent_test_driver_cipher_operation_t *operation,
     uint8_t *output,
     size_t output_size,
     size_t *output_length)
@@ -401,7 +401,7 @@
 }
 
 psa_status_t test_opaque_cipher_encrypt_setup(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg)
@@ -415,7 +415,7 @@
 }
 
 psa_status_t test_opaque_cipher_decrypt_setup(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key, size_t key_length,
     psa_algorithm_t alg)
@@ -429,14 +429,14 @@
 }
 
 psa_status_t test_opaque_cipher_abort(
-    test_opaque_cipher_operation_t *operation)
+    mbedtls_opaque_test_driver_cipher_operation_t *operation )
 {
     (void) operation;
     return( PSA_ERROR_NOT_SUPPORTED );
 }
 
 psa_status_t test_opaque_cipher_generate_iv(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     uint8_t *iv,
     size_t iv_size,
     size_t *iv_length)
@@ -449,7 +449,7 @@
 }
 
 psa_status_t test_opaque_cipher_set_iv(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const uint8_t *iv,
     size_t iv_length)
 {
@@ -460,7 +460,7 @@
 }
 
 psa_status_t test_opaque_cipher_update(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     const uint8_t *input,
     size_t input_length,
     uint8_t *output,
@@ -477,7 +477,7 @@
 }
 
 psa_status_t test_opaque_cipher_finish(
-    test_opaque_cipher_operation_t *operation,
+    mbedtls_opaque_test_driver_cipher_operation_t *operation,
     uint8_t *output,
     size_t output_size,
     size_t *output_length)
diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj
index 0db6c4c..0fb1b5c 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
@@ -222,6 +222,7 @@
     <ClInclude Include="..\..\include\mbedtls\x509_csr.h" />
     <ClInclude Include="..\..\include\mbedtls\xtea.h" />
     <ClInclude Include="..\..\include\psa\crypto.h" />
+    <ClInclude Include="..\..\include\psa\crypto_builtin_cipher.h" />
     <ClInclude Include="..\..\include\psa\crypto_builtin_hash.h" />
     <ClInclude Include="..\..\include\psa\crypto_compat.h" />
     <ClInclude Include="..\..\include\psa\crypto_config.h" />