diff --git a/library/pk.c b/library/pk.c
index a73fa56..b01694c 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -49,7 +49,7 @@
 /*
  * Initialise a mbedtls_pk_context
  */
-void mbedtls_pk_init( mbedtls_pk_context *ctx )
+void mbedtls_pk_init(mbedtls_pk_context *ctx)
 {
     ctx->pk_info = NULL;
     ctx->pk_ctx = NULL;
@@ -58,22 +58,24 @@
 /*
  * Free (the components of) a mbedtls_pk_context
  */
-void mbedtls_pk_free( mbedtls_pk_context *ctx )
+void mbedtls_pk_free(mbedtls_pk_context *ctx)
 {
-    if( ctx == NULL )
+    if (ctx == NULL) {
         return;
+    }
 
-    if ( ctx->pk_info != NULL )
-        ctx->pk_info->ctx_free_func( ctx->pk_ctx );
+    if (ctx->pk_info != NULL) {
+        ctx->pk_info->ctx_free_func(ctx->pk_ctx);
+    }
 
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pk_context ) );
+    mbedtls_platform_zeroize(ctx, sizeof(mbedtls_pk_context));
 }
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
 /*
  * Initialize a restart context
  */
-void mbedtls_pk_restart_init( mbedtls_pk_restart_ctx *ctx )
+void mbedtls_pk_restart_init(mbedtls_pk_restart_ctx *ctx)
 {
     ctx->pk_info = NULL;
     ctx->rs_ctx = NULL;
@@ -82,15 +84,14 @@
 /*
  * Free the components of a restart context
  */
-void mbedtls_pk_restart_free( mbedtls_pk_restart_ctx *ctx )
+void mbedtls_pk_restart_free(mbedtls_pk_restart_ctx *ctx)
 {
-    if( ctx == NULL || ctx->pk_info == NULL ||
-        ctx->pk_info->rs_free_func == NULL )
-    {
+    if (ctx == NULL || ctx->pk_info == NULL ||
+        ctx->pk_info->rs_free_func == NULL) {
         return;
     }
 
-    ctx->pk_info->rs_free_func( ctx->rs_ctx );
+    ctx->pk_info->rs_free_func(ctx->rs_ctx);
 
     ctx->pk_info = NULL;
     ctx->rs_ctx = NULL;
@@ -100,81 +101,87 @@
 /*
  * Get pk_info structure from type
  */
-const mbedtls_pk_info_t * mbedtls_pk_info_from_type( mbedtls_pk_type_t pk_type )
+const mbedtls_pk_info_t *mbedtls_pk_info_from_type(mbedtls_pk_type_t pk_type)
 {
-    switch( pk_type ) {
+    switch (pk_type) {
 #if defined(MBEDTLS_RSA_C)
         case MBEDTLS_PK_RSA:
-            return( &mbedtls_rsa_info );
+            return &mbedtls_rsa_info;
 #endif
 #if defined(MBEDTLS_ECP_C)
         case MBEDTLS_PK_ECKEY:
-            return( &mbedtls_eckey_info );
+            return &mbedtls_eckey_info;
         case MBEDTLS_PK_ECKEY_DH:
-            return( &mbedtls_eckeydh_info );
+            return &mbedtls_eckeydh_info;
 #endif
 #if defined(MBEDTLS_ECDSA_C)
         case MBEDTLS_PK_ECDSA:
-            return( &mbedtls_ecdsa_info );
+            return &mbedtls_ecdsa_info;
 #endif
         /* MBEDTLS_PK_RSA_ALT omitted on purpose */
         default:
-            return( NULL );
+            return NULL;
     }
 }
 
 /*
  * Initialise context
  */
-int mbedtls_pk_setup( mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info )
+int mbedtls_pk_setup(mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info)
 {
-    if( info == NULL || ctx->pk_info != NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (info == NULL || ctx->pk_info != NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
-        return( MBEDTLS_ERR_PK_ALLOC_FAILED );
+    if ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL) {
+        return MBEDTLS_ERR_PK_ALLOC_FAILED;
+    }
 
     ctx->pk_info = info;
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 /*
  * Initialise a PSA-wrapping context
  */
-int mbedtls_pk_setup_opaque( mbedtls_pk_context *ctx,
-                             const mbedtls_svc_key_id_t key )
+int mbedtls_pk_setup_opaque(mbedtls_pk_context *ctx,
+                            const mbedtls_svc_key_id_t key)
 {
     const mbedtls_pk_info_t *info = NULL;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t *pk_ctx;
     psa_key_type_t type;
 
-    if( ctx == NULL || ctx->pk_info != NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx == NULL || ctx->pk_info != NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( PSA_SUCCESS != psa_get_key_attributes( key, &attributes ) )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
-    type = psa_get_key_type( &attributes );
-    psa_reset_key_attributes( &attributes );
+    if (PSA_SUCCESS != psa_get_key_attributes(key, &attributes)) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
+    type = psa_get_key_type(&attributes);
+    psa_reset_key_attributes(&attributes);
 
-    if( PSA_KEY_TYPE_IS_ECC_KEY_PAIR( type ) )
+    if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(type)) {
         info = &mbedtls_pk_ecdsa_opaque_info;
-    else if( type == PSA_KEY_TYPE_RSA_KEY_PAIR )
+    } else if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
         info = &mbedtls_pk_rsa_opaque_info;
-    else
-        return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
+    } else {
+        return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+    }
 
-    if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
-        return( MBEDTLS_ERR_PK_ALLOC_FAILED );
+    if ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL) {
+        return MBEDTLS_ERR_PK_ALLOC_FAILED;
+    }
 
     ctx->pk_info = info;
 
     pk_ctx = (mbedtls_svc_key_id_t *) ctx->pk_ctx;
     *pk_ctx = key;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
@@ -182,19 +189,21 @@
 /*
  * Initialize an RSA-alt context
  */
-int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key,
-                         mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
-                         mbedtls_pk_rsa_alt_sign_func sign_func,
-                         mbedtls_pk_rsa_alt_key_len_func key_len_func )
+int mbedtls_pk_setup_rsa_alt(mbedtls_pk_context *ctx, void *key,
+                             mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
+                             mbedtls_pk_rsa_alt_sign_func sign_func,
+                             mbedtls_pk_rsa_alt_key_len_func key_len_func)
 {
     mbedtls_rsa_alt_context *rsa_alt;
     const mbedtls_pk_info_t *info = &mbedtls_rsa_alt_info;
 
-    if( ctx->pk_info != NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info != NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
-        return( MBEDTLS_ERR_PK_ALLOC_FAILED );
+    if ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL) {
+        return MBEDTLS_ERR_PK_ALLOC_FAILED;
+    }
 
     ctx->pk_info = info;
 
@@ -205,78 +214,83 @@
     rsa_alt->sign_func = sign_func;
     rsa_alt->key_len_func = key_len_func;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
 
 /*
  * Tell if a PK can do the operations of the given type
  */
-int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type )
+int mbedtls_pk_can_do(const mbedtls_pk_context *ctx, mbedtls_pk_type_t type)
 {
     /* A context with null pk_info is not set up yet and can't do anything.
      * For backward compatibility, also accept NULL instead of a context
      * pointer. */
-    if( ctx == NULL || ctx->pk_info == NULL )
-        return( 0 );
+    if (ctx == NULL || ctx->pk_info == NULL) {
+        return 0;
+    }
 
-    return( ctx->pk_info->can_do( type ) );
+    return ctx->pk_info->can_do(type);
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 /*
  * Tell if a PK can do the operations of the given PSA algorithm
  */
-int mbedtls_pk_can_do_ext( const mbedtls_pk_context *ctx, psa_algorithm_t alg,
-                           psa_key_usage_t usage )
+int mbedtls_pk_can_do_ext(const mbedtls_pk_context *ctx, psa_algorithm_t alg,
+                          psa_key_usage_t usage)
 {
     psa_key_usage_t key_usage;
 
     /* A context with null pk_info is not set up yet and can't do anything.
      * For backward compatibility, also accept NULL instead of a context
      * pointer. */
-    if( ctx == NULL || ctx->pk_info == NULL )
-        return( 0 );
+    if (ctx == NULL || ctx->pk_info == NULL) {
+        return 0;
+    }
 
     /* Filter out non allowed algorithms */
-    if( PSA_ALG_IS_ECDSA( alg ) == 0 &&
-        PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) == 0 &&
-        PSA_ALG_IS_RSA_PSS( alg ) == 0 &&
+    if (PSA_ALG_IS_ECDSA(alg) == 0 &&
+        PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) == 0 &&
+        PSA_ALG_IS_RSA_PSS(alg) == 0 &&
         alg != PSA_ALG_RSA_PKCS1V15_CRYPT &&
-        PSA_ALG_IS_ECDH( alg ) == 0 )
-        return( 0 );
+        PSA_ALG_IS_ECDH(alg) == 0) {
+        return 0;
+    }
 
     /* Filter out non allowed usage flags */
-    if( usage == 0 ||
-        ( usage & ~( PSA_KEY_USAGE_SIGN_HASH |
-                     PSA_KEY_USAGE_DECRYPT |
-                     PSA_KEY_USAGE_DERIVE ) ) != 0 )
-        return( 0 );
+    if (usage == 0 ||
+        (usage & ~(PSA_KEY_USAGE_SIGN_HASH |
+                   PSA_KEY_USAGE_DECRYPT |
+                   PSA_KEY_USAGE_DERIVE)) != 0) {
+        return 0;
+    }
 
     /* Wildcard hash is not allowed */
-    if( PSA_ALG_IS_SIGN_HASH( alg ) &&
-        PSA_ALG_SIGN_GET_HASH( alg ) == PSA_ALG_ANY_HASH )
-        return( 0 );
+    if (PSA_ALG_IS_SIGN_HASH(alg) &&
+        PSA_ALG_SIGN_GET_HASH(alg) == PSA_ALG_ANY_HASH) {
+        return 0;
+    }
 
-    if( mbedtls_pk_get_type( ctx ) != MBEDTLS_PK_OPAQUE )
-    {
+    if (mbedtls_pk_get_type(ctx) != MBEDTLS_PK_OPAQUE) {
         mbedtls_pk_type_t type;
 
-        if( PSA_ALG_IS_ECDSA( alg ) || PSA_ALG_IS_ECDH( alg ) )
+        if (PSA_ALG_IS_ECDSA(alg) || PSA_ALG_IS_ECDH(alg)) {
             type = MBEDTLS_PK_ECKEY;
-        else if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) ||
-                 alg == PSA_ALG_RSA_PKCS1V15_CRYPT )
+        } else if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
+                   alg == PSA_ALG_RSA_PKCS1V15_CRYPT) {
             type = MBEDTLS_PK_RSA;
-        else if( PSA_ALG_IS_RSA_PSS( alg ) )
+        } else if (PSA_ALG_IS_RSA_PSS(alg)) {
             type = MBEDTLS_PK_RSASSA_PSS;
-        else
-            return( 0 );
+        } else {
+            return 0;
+        }
 
-        if( ctx->pk_info->can_do( type ) == 0 )
-            return( 0 );
+        if (ctx->pk_info->can_do(type) == 0) {
+            return 0;
+        }
 
-        switch( type )
-        {
+        switch (type) {
             case MBEDTLS_PK_ECKEY:
                 key_usage = PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_DERIVE;
                 break;
@@ -288,10 +302,10 @@
                 break;
             default:
                 /* Should never happen */
-                return( 0 );
+                return 0;
         }
 
-        return( ( key_usage & usage ) == usage );
+        return (key_usage & usage) == usage;
     }
 
     const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx->pk_ctx;
@@ -299,17 +313,19 @@
     psa_algorithm_t key_alg, key_alg2;
     psa_status_t status;
 
-    status = psa_get_key_attributes( *key, &attributes );
-    if( status != PSA_SUCCESS )
-        return( 0 );
+    status = psa_get_key_attributes(*key, &attributes);
+    if (status != PSA_SUCCESS) {
+        return 0;
+    }
 
-    key_alg = psa_get_key_algorithm( &attributes );
-    key_alg2 = psa_get_key_enrollment_algorithm( &attributes );
-    key_usage = psa_get_key_usage_flags( &attributes );
-    psa_reset_key_attributes( &attributes );
+    key_alg = psa_get_key_algorithm(&attributes);
+    key_alg2 = psa_get_key_enrollment_algorithm(&attributes);
+    key_usage = psa_get_key_usage_flags(&attributes);
+    psa_reset_key_attributes(&attributes);
 
-    if( ( key_usage & usage ) != usage )
-        return( 0 );
+    if ((key_usage & usage) != usage) {
+        return 0;
+    }
 
     /*
      * Common case: the key alg or alg2 only allows alg.
@@ -318,153 +334,167 @@
      * This would also match ECDSA/RSA_PKCS1V15_SIGN/RSA_PSS with
      * a fixed hash on key_alg/key_alg2.
      */
-    if( alg == key_alg || alg == key_alg2 )
-            return( 1 );
+    if (alg == key_alg || alg == key_alg2) {
+        return 1;
+    }
 
     /*
      * If key_alg or key_alg2 is a hash-and-sign with a wildcard for the hash,
      * and alg is the same hash-and-sign family with any hash,
      * then alg is compliant with this key alg
      */
-    if( PSA_ALG_IS_SIGN_HASH( alg ) )
-    {
+    if (PSA_ALG_IS_SIGN_HASH(alg)) {
 
-        if( PSA_ALG_IS_SIGN_HASH( key_alg ) &&
-            PSA_ALG_SIGN_GET_HASH( key_alg ) == PSA_ALG_ANY_HASH &&
-            ( alg & ~PSA_ALG_HASH_MASK ) == ( key_alg & ~PSA_ALG_HASH_MASK ) )
-            return( 1 );
+        if (PSA_ALG_IS_SIGN_HASH(key_alg) &&
+            PSA_ALG_SIGN_GET_HASH(key_alg) == PSA_ALG_ANY_HASH &&
+            (alg & ~PSA_ALG_HASH_MASK) == (key_alg & ~PSA_ALG_HASH_MASK)) {
+            return 1;
+        }
 
-        if( PSA_ALG_IS_SIGN_HASH( key_alg2 ) &&
-            PSA_ALG_SIGN_GET_HASH( key_alg2 ) == PSA_ALG_ANY_HASH &&
-            ( alg & ~PSA_ALG_HASH_MASK ) == ( key_alg2 & ~PSA_ALG_HASH_MASK ) )
-            return( 1 );
+        if (PSA_ALG_IS_SIGN_HASH(key_alg2) &&
+            PSA_ALG_SIGN_GET_HASH(key_alg2) == PSA_ALG_ANY_HASH &&
+            (alg & ~PSA_ALG_HASH_MASK) == (key_alg2 & ~PSA_ALG_HASH_MASK)) {
+            return 1;
+        }
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 /*
  * Helper for mbedtls_pk_sign and mbedtls_pk_verify
  */
-static inline int pk_hashlen_helper( mbedtls_md_type_t md_alg, size_t *hash_len )
+static inline int pk_hashlen_helper(mbedtls_md_type_t md_alg, size_t *hash_len)
 {
-    if( *hash_len != 0 )
-        return( 0 );
+    if (*hash_len != 0) {
+        return 0;
+    }
 
-    *hash_len = mbedtls_hash_info_get_size( md_alg );
+    *hash_len = mbedtls_hash_info_get_size(md_alg);
 
-    if( *hash_len == 0 )
-        return( -1 );
+    if (*hash_len == 0) {
+        return -1;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
 /*
  * Helper to set up a restart context if needed
  */
-static int pk_restart_setup( mbedtls_pk_restart_ctx *ctx,
-                             const mbedtls_pk_info_t *info )
+static int pk_restart_setup(mbedtls_pk_restart_ctx *ctx,
+                            const mbedtls_pk_info_t *info)
 {
     /* Don't do anything if already set up or invalid */
-    if( ctx == NULL || ctx->pk_info != NULL )
-        return( 0 );
+    if (ctx == NULL || ctx->pk_info != NULL) {
+        return 0;
+    }
 
     /* Should never happen when we're called */
-    if( info->rs_alloc_func == NULL || info->rs_free_func == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (info->rs_alloc_func == NULL || info->rs_free_func == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ( ctx->rs_ctx = info->rs_alloc_func() ) == NULL )
-        return( MBEDTLS_ERR_PK_ALLOC_FAILED );
+    if ((ctx->rs_ctx = info->rs_alloc_func()) == NULL) {
+        return MBEDTLS_ERR_PK_ALLOC_FAILED;
+    }
 
     ctx->pk_info = info;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
 /*
  * Verify a signature (restartable)
  */
-int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
-               mbedtls_md_type_t md_alg,
-               const unsigned char *hash, size_t hash_len,
-               const unsigned char *sig, size_t sig_len,
-               mbedtls_pk_restart_ctx *rs_ctx )
+int mbedtls_pk_verify_restartable(mbedtls_pk_context *ctx,
+                                  mbedtls_md_type_t md_alg,
+                                  const unsigned char *hash, size_t hash_len,
+                                  const unsigned char *sig, size_t sig_len,
+                                  mbedtls_pk_restart_ctx *rs_ctx)
 {
-    if( ( md_alg != MBEDTLS_MD_NONE || hash_len != 0 ) && hash == NULL )
+    if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info == NULL ||
-        pk_hashlen_helper( md_alg, &hash_len ) != 0 )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL ||
+        pk_hashlen_helper(md_alg, &hash_len) != 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
     /* optimization: use non-restartable version if restart disabled */
-    if( rs_ctx != NULL &&
+    if (rs_ctx != NULL &&
         mbedtls_ecp_restart_is_enabled() &&
-        ctx->pk_info->verify_rs_func != NULL )
-    {
+        ctx->pk_info->verify_rs_func != NULL) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-        if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
-            return( ret );
+        if ((ret = pk_restart_setup(rs_ctx, ctx->pk_info)) != 0) {
+            return ret;
+        }
 
-        ret = ctx->pk_info->verify_rs_func( ctx->pk_ctx,
-                   md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx );
+        ret = ctx->pk_info->verify_rs_func(ctx->pk_ctx,
+                                           md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx);
 
-        if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-            mbedtls_pk_restart_free( rs_ctx );
+        if (ret != MBEDTLS_ERR_ECP_IN_PROGRESS) {
+            mbedtls_pk_restart_free(rs_ctx);
+        }
 
-        return( ret );
+        return ret;
     }
 #else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
     (void) rs_ctx;
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
-    if( ctx->pk_info->verify_func == NULL )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (ctx->pk_info->verify_func == NULL) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg, hash, hash_len,
-                                       sig, sig_len ) );
+    return ctx->pk_info->verify_func(ctx->pk_ctx, md_alg, hash, hash_len,
+                                     sig, sig_len);
 }
 
 /*
  * Verify a signature
  */
-int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
-               const unsigned char *hash, size_t hash_len,
-               const unsigned char *sig, size_t sig_len )
+int mbedtls_pk_verify(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                      const unsigned char *hash, size_t hash_len,
+                      const unsigned char *sig, size_t sig_len)
 {
-    return( mbedtls_pk_verify_restartable( ctx, md_alg, hash, hash_len,
-                                           sig, sig_len, NULL ) );
+    return mbedtls_pk_verify_restartable(ctx, md_alg, hash, hash_len,
+                                         sig, sig_len, NULL);
 }
 
 /*
  * Verify a signature with options
  */
-int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
-                   mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   const unsigned char *sig, size_t sig_len )
+int mbedtls_pk_verify_ext(mbedtls_pk_type_t type, const void *options,
+                          mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                          const unsigned char *hash, size_t hash_len,
+                          const unsigned char *sig, size_t sig_len)
 {
-    if( ( md_alg != MBEDTLS_MD_NONE || hash_len != 0 ) && hash == NULL )
+    if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ! mbedtls_pk_can_do( ctx, type ) )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (!mbedtls_pk_can_do(ctx, type)) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    if( type != MBEDTLS_PK_RSASSA_PSS )
-    {
+    if (type != MBEDTLS_PK_RSASSA_PSS) {
         /* General case: no options */
-        if( options != NULL )
-            return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+        if (options != NULL) {
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        }
 
-        return( mbedtls_pk_verify( ctx, md_alg, hash, hash_len, sig, sig_len ) );
+        return mbedtls_pk_verify(ctx, md_alg, hash, hash_len, sig, sig_len);
     }
 
 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21)
@@ -472,18 +502,19 @@
     const mbedtls_pk_rsassa_pss_options *pss_opts;
 
 #if SIZE_MAX > UINT_MAX
-    if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 #endif /* SIZE_MAX > UINT_MAX */
 
-    if( options == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (options == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
     pss_opts = (const mbedtls_pk_rsassa_pss_options *) options;
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( pss_opts->mgf1_hash_id == md_alg )
-    {
+    if (pss_opts->mgf1_hash_id == md_alg) {
         unsigned char buf[MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES];
         unsigned char *p;
         int key_len;
@@ -491,27 +522,27 @@
         psa_status_t status = PSA_ERROR_DATA_CORRUPT;
         psa_status_t destruction_status = PSA_ERROR_DATA_CORRUPT;
 
-        psa_algorithm_t psa_md_alg = mbedtls_hash_info_psa_from_md( md_alg );
+        psa_algorithm_t psa_md_alg = mbedtls_hash_info_psa_from_md(md_alg);
         mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
         psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-        psa_algorithm_t psa_sig_alg = PSA_ALG_RSA_PSS_ANY_SALT( psa_md_alg );
-        p = buf + sizeof( buf );
-        key_len = mbedtls_pk_write_pubkey( &p, buf, ctx );
+        psa_algorithm_t psa_sig_alg = PSA_ALG_RSA_PSS_ANY_SALT(psa_md_alg);
+        p = buf + sizeof(buf);
+        key_len = mbedtls_pk_write_pubkey(&p, buf, ctx);
 
-        if( key_len < 0 )
-            return( key_len );
+        if (key_len < 0) {
+            return key_len;
+        }
 
-        psa_set_key_type( &attributes, PSA_KEY_TYPE_RSA_PUBLIC_KEY );
-        psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_VERIFY_HASH );
-        psa_set_key_algorithm( &attributes, psa_sig_alg );
+        psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_PUBLIC_KEY);
+        psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_VERIFY_HASH);
+        psa_set_key_algorithm(&attributes, psa_sig_alg);
 
-        status = psa_import_key( &attributes,
-                                 buf + sizeof( buf ) - key_len, key_len,
-                                 &key_id );
-        if( status != PSA_SUCCESS )
-        {
-            psa_destroy_key( key_id );
-            return( mbedtls_pk_error_from_psa( status ) );
+        status = psa_import_key(&attributes,
+                                buf + sizeof(buf) - key_len, key_len,
+                                &key_id);
+        if (status != PSA_SUCCESS) {
+            psa_destroy_key(key_id);
+            return mbedtls_pk_error_from_psa(status);
         }
 
         /* This function requires returning MBEDTLS_ERR_PK_SIG_LEN_MISMATCH
@@ -519,157 +550,166 @@
          * mbedtls_psa_rsa_verify_hash requires the sig_len to be exact,
          * so for this reason the passed sig_len is overwritten. Smaller
          * signature lengths should not be accepted for verification. */
-        signature_length = sig_len > mbedtls_pk_get_len( ctx ) ?
-                                     mbedtls_pk_get_len( ctx ) : sig_len;
-        status = psa_verify_hash( key_id, psa_sig_alg, hash,
-                                  hash_len, sig, signature_length );
-        destruction_status = psa_destroy_key( key_id );
+        signature_length = sig_len > mbedtls_pk_get_len(ctx) ?
+                           mbedtls_pk_get_len(ctx) : sig_len;
+        status = psa_verify_hash(key_id, psa_sig_alg, hash,
+                                 hash_len, sig, signature_length);
+        destruction_status = psa_destroy_key(key_id);
 
-        if( status == PSA_SUCCESS && sig_len > mbedtls_pk_get_len( ctx ) )
-            return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
+        if (status == PSA_SUCCESS && sig_len > mbedtls_pk_get_len(ctx)) {
+            return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
+        }
 
-        if( status == PSA_SUCCESS )
+        if (status == PSA_SUCCESS) {
             status = destruction_status;
+        }
 
-        return( mbedtls_pk_error_from_psa_rsa( status ) );
-    }
-    else
+        return mbedtls_pk_error_from_psa_rsa(status);
+    } else
 #endif
     {
-        if( sig_len < mbedtls_pk_get_len( ctx ) )
-            return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
+        if (sig_len < mbedtls_pk_get_len(ctx)) {
+            return MBEDTLS_ERR_RSA_VERIFY_FAILED;
+        }
 
-        ret = mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_pk_rsa( *ctx ),
-                                                 md_alg, (unsigned int) hash_len, hash,
-                                                 pss_opts->mgf1_hash_id,
-                                                 pss_opts->expected_salt_len,
-                                                 sig );
-        if( ret != 0 )
-            return( ret );
+        ret = mbedtls_rsa_rsassa_pss_verify_ext(mbedtls_pk_rsa(*ctx),
+                                                md_alg, (unsigned int) hash_len, hash,
+                                                pss_opts->mgf1_hash_id,
+                                                pss_opts->expected_salt_len,
+                                                sig);
+        if (ret != 0) {
+            return ret;
+        }
 
-        if( sig_len > mbedtls_pk_get_len( ctx ) )
-            return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
+        if (sig_len > mbedtls_pk_get_len(ctx)) {
+            return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
+        }
 
-        return( 0 );
+        return 0;
     }
 #else
-    return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
+    return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
 #endif /* MBEDTLS_RSA_C && MBEDTLS_PKCS1_V21 */
 }
 
 /*
  * Make a signature (restartable)
  */
-int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
-             mbedtls_md_type_t md_alg,
-             const unsigned char *hash, size_t hash_len,
-             unsigned char *sig, size_t sig_size, size_t *sig_len,
-             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-             mbedtls_pk_restart_ctx *rs_ctx )
+int mbedtls_pk_sign_restartable(mbedtls_pk_context *ctx,
+                                mbedtls_md_type_t md_alg,
+                                const unsigned char *hash, size_t hash_len,
+                                unsigned char *sig, size_t sig_size, size_t *sig_len,
+                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+                                mbedtls_pk_restart_ctx *rs_ctx)
 {
-    if( ( md_alg != MBEDTLS_MD_NONE || hash_len != 0 ) && hash == NULL )
+    if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info == NULL || pk_hashlen_helper( md_alg, &hash_len ) != 0 )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL || pk_hashlen_helper(md_alg, &hash_len) != 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
     /* optimization: use non-restartable version if restart disabled */
-    if( rs_ctx != NULL &&
+    if (rs_ctx != NULL &&
         mbedtls_ecp_restart_is_enabled() &&
-        ctx->pk_info->sign_rs_func != NULL )
-    {
+        ctx->pk_info->sign_rs_func != NULL) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-        if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
-            return( ret );
+        if ((ret = pk_restart_setup(rs_ctx, ctx->pk_info)) != 0) {
+            return ret;
+        }
 
-        ret = ctx->pk_info->sign_rs_func( ctx->pk_ctx, md_alg,
-                                          hash, hash_len,
-                                          sig, sig_size, sig_len,
-                                          f_rng, p_rng, rs_ctx->rs_ctx );
+        ret = ctx->pk_info->sign_rs_func(ctx->pk_ctx, md_alg,
+                                         hash, hash_len,
+                                         sig, sig_size, sig_len,
+                                         f_rng, p_rng, rs_ctx->rs_ctx);
 
-        if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-            mbedtls_pk_restart_free( rs_ctx );
+        if (ret != MBEDTLS_ERR_ECP_IN_PROGRESS) {
+            mbedtls_pk_restart_free(rs_ctx);
+        }
 
-        return( ret );
+        return ret;
     }
 #else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
     (void) rs_ctx;
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
-    if( ctx->pk_info->sign_func == NULL )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (ctx->pk_info->sign_func == NULL) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    return( ctx->pk_info->sign_func( ctx->pk_ctx, md_alg,
-                                     hash, hash_len,
-                                     sig, sig_size, sig_len,
-                                     f_rng, p_rng ) );
+    return ctx->pk_info->sign_func(ctx->pk_ctx, md_alg,
+                                   hash, hash_len,
+                                   sig, sig_size, sig_len,
+                                   f_rng, p_rng);
 }
 
 /*
  * Make a signature
  */
-int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
-             const unsigned char *hash, size_t hash_len,
-             unsigned char *sig, size_t sig_size, size_t *sig_len,
-             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+int mbedtls_pk_sign(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                    const unsigned char *hash, size_t hash_len,
+                    unsigned char *sig, size_t sig_size, size_t *sig_len,
+                    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    return( mbedtls_pk_sign_restartable( ctx, md_alg, hash, hash_len,
-                                         sig, sig_size, sig_len,
-                                         f_rng, p_rng, NULL ) );
+    return mbedtls_pk_sign_restartable(ctx, md_alg, hash, hash_len,
+                                       sig, sig_size, sig_len,
+                                       f_rng, p_rng, NULL);
 }
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)
 /*
  * Make a signature given a signature type.
  */
-int mbedtls_pk_sign_ext( mbedtls_pk_type_t pk_type,
-                         mbedtls_pk_context *ctx,
-                         mbedtls_md_type_t md_alg,
-                         const unsigned char *hash, size_t hash_len,
-                         unsigned char *sig, size_t sig_size, size_t *sig_len,
-                         int (*f_rng)(void *, unsigned char *, size_t),
-                         void *p_rng )
+int mbedtls_pk_sign_ext(mbedtls_pk_type_t pk_type,
+                        mbedtls_pk_context *ctx,
+                        mbedtls_md_type_t md_alg,
+                        const unsigned char *hash, size_t hash_len,
+                        unsigned char *sig, size_t sig_size, size_t *sig_len,
+                        int (*f_rng)(void *, unsigned char *, size_t),
+                        void *p_rng)
 {
 #if defined(MBEDTLS_RSA_C)
     psa_algorithm_t psa_md_alg;
 #endif /* MBEDTLS_RSA_C */
     *sig_len = 0;
 
-    if( ctx->pk_info == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ! mbedtls_pk_can_do( ctx, pk_type ) )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (!mbedtls_pk_can_do(ctx, pk_type)) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    if( pk_type != MBEDTLS_PK_RSASSA_PSS )
-    {
-        return( mbedtls_pk_sign( ctx, md_alg, hash, hash_len,
-                                 sig, sig_size, sig_len, f_rng, p_rng ) );
+    if (pk_type != MBEDTLS_PK_RSASSA_PSS) {
+        return mbedtls_pk_sign(ctx, md_alg, hash, hash_len,
+                               sig, sig_size, sig_len, f_rng, p_rng);
     }
 
 #if defined(MBEDTLS_RSA_C)
-    psa_md_alg = mbedtls_hash_info_psa_from_md( md_alg );
-    if( psa_md_alg == 0 )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    psa_md_alg = mbedtls_hash_info_psa_from_md(md_alg);
+    if (psa_md_alg == 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( mbedtls_pk_get_type( ctx ) == MBEDTLS_PK_OPAQUE )
-    {
+    if (mbedtls_pk_get_type(ctx) == MBEDTLS_PK_OPAQUE) {
         const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx->pk_ctx;
         psa_status_t status;
 
-        status = psa_sign_hash( *key, PSA_ALG_RSA_PSS( psa_md_alg ),
-                                hash, hash_len,
-                                sig, sig_size, sig_len );
-        return( mbedtls_pk_error_from_psa_rsa( status ) );
+        status = psa_sign_hash(*key, PSA_ALG_RSA_PSS(psa_md_alg),
+                               hash, hash_len,
+                               sig, sig_size, sig_len);
+        return mbedtls_pk_error_from_psa_rsa(status);
     }
 
-    return( mbedtls_pk_psa_rsa_sign_ext( PSA_ALG_RSA_PSS( psa_md_alg ),
-                                         ctx->pk_ctx, hash, hash_len,
-                                         sig, sig_size, sig_len ) );
+    return mbedtls_pk_psa_rsa_sign_ext(PSA_ALG_RSA_PSS(psa_md_alg),
+                                       ctx->pk_ctx, hash, hash_len,
+                                       sig, sig_size, sig_len);
 #else /* MBEDTLS_RSA_C */
-    return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
+    return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
 #endif /* !MBEDTLS_RSA_C */
 
 }
@@ -678,121 +718,130 @@
 /*
  * Decrypt message
  */
-int mbedtls_pk_decrypt( mbedtls_pk_context *ctx,
-                const unsigned char *input, size_t ilen,
-                unsigned char *output, size_t *olen, size_t osize,
-                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+int mbedtls_pk_decrypt(mbedtls_pk_context *ctx,
+                       const unsigned char *input, size_t ilen,
+                       unsigned char *output, size_t *olen, size_t osize,
+                       int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    if( ctx->pk_info == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info->decrypt_func == NULL )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (ctx->pk_info->decrypt_func == NULL) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    return( ctx->pk_info->decrypt_func( ctx->pk_ctx, input, ilen,
-                output, olen, osize, f_rng, p_rng ) );
+    return ctx->pk_info->decrypt_func(ctx->pk_ctx, input, ilen,
+                                      output, olen, osize, f_rng, p_rng);
 }
 
 /*
  * Encrypt message
  */
-int mbedtls_pk_encrypt( mbedtls_pk_context *ctx,
-                const unsigned char *input, size_t ilen,
-                unsigned char *output, size_t *olen, size_t osize,
-                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+int mbedtls_pk_encrypt(mbedtls_pk_context *ctx,
+                       const unsigned char *input, size_t ilen,
+                       unsigned char *output, size_t *olen, size_t osize,
+                       int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    if( ctx->pk_info == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info->encrypt_func == NULL )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (ctx->pk_info->encrypt_func == NULL) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    return( ctx->pk_info->encrypt_func( ctx->pk_ctx, input, ilen,
-                output, olen, osize, f_rng, p_rng ) );
+    return ctx->pk_info->encrypt_func(ctx->pk_ctx, input, ilen,
+                                      output, olen, osize, f_rng, p_rng);
 }
 
 /*
  * Check public-private key pair
  */
-int mbedtls_pk_check_pair( const mbedtls_pk_context *pub,
-                           const mbedtls_pk_context *prv,
-                           int (*f_rng)(void *, unsigned char *, size_t),
-                           void *p_rng )
+int mbedtls_pk_check_pair(const mbedtls_pk_context *pub,
+                          const mbedtls_pk_context *prv,
+                          int (*f_rng)(void *, unsigned char *, size_t),
+                          void *p_rng)
 {
-    if( pub->pk_info == NULL ||
-        prv->pk_info == NULL )
-    {
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (pub->pk_info == NULL ||
+        prv->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
     }
 
-    if( f_rng == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
-
-    if( prv->pk_info->check_pair_func == NULL )
-        return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
-
-    if( prv->pk_info->type == MBEDTLS_PK_RSA_ALT )
-    {
-        if( pub->pk_info->type != MBEDTLS_PK_RSA )
-            return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
-    }
-    else
-    {
-        if( pub->pk_info != prv->pk_info )
-            return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (f_rng == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
     }
 
-    return( prv->pk_info->check_pair_func( pub->pk_ctx, prv->pk_ctx, f_rng, p_rng ) );
+    if (prv->pk_info->check_pair_func == NULL) {
+        return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+    }
+
+    if (prv->pk_info->type == MBEDTLS_PK_RSA_ALT) {
+        if (pub->pk_info->type != MBEDTLS_PK_RSA) {
+            return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+        }
+    } else {
+        if (pub->pk_info != prv->pk_info) {
+            return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+        }
+    }
+
+    return prv->pk_info->check_pair_func(pub->pk_ctx, prv->pk_ctx, f_rng, p_rng);
 }
 
 /*
  * Get key size in bits
  */
-size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx )
+size_t mbedtls_pk_get_bitlen(const mbedtls_pk_context *ctx)
 {
     /* For backward compatibility, accept NULL or a context that
      * isn't set up yet, and return a fake value that should be safe. */
-    if( ctx == NULL || ctx->pk_info == NULL )
-        return( 0 );
+    if (ctx == NULL || ctx->pk_info == NULL) {
+        return 0;
+    }
 
-    return( ctx->pk_info->get_bitlen( ctx->pk_ctx ) );
+    return ctx->pk_info->get_bitlen(ctx->pk_ctx);
 }
 
 /*
  * Export debug information
  */
-int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items )
+int mbedtls_pk_debug(const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items)
 {
-    if( ctx->pk_info == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (ctx->pk_info == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    if( ctx->pk_info->debug_func == NULL )
-        return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    if (ctx->pk_info->debug_func == NULL) {
+        return MBEDTLS_ERR_PK_TYPE_MISMATCH;
+    }
 
-    ctx->pk_info->debug_func( ctx->pk_ctx, items );
-    return( 0 );
+    ctx->pk_info->debug_func(ctx->pk_ctx, items);
+    return 0;
 }
 
 /*
  * Access the PK type name
  */
-const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx )
+const char *mbedtls_pk_get_name(const mbedtls_pk_context *ctx)
 {
-    if( ctx == NULL || ctx->pk_info == NULL )
-        return( "invalid PK" );
+    if (ctx == NULL || ctx->pk_info == NULL) {
+        return "invalid PK";
+    }
 
-    return( ctx->pk_info->name );
+    return ctx->pk_info->name;
 }
 
 /*
  * Access the PK type
  */
-mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx )
+mbedtls_pk_type_t mbedtls_pk_get_type(const mbedtls_pk_context *ctx)
 {
-    if( ctx == NULL || ctx->pk_info == NULL )
-        return( MBEDTLS_PK_NONE );
+    if (ctx == NULL || ctx->pk_info == NULL) {
+        return MBEDTLS_PK_NONE;
+    }
 
-    return( ctx->pk_info->type );
+    return ctx->pk_info->type;
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -802,11 +851,11 @@
  *
  * Currently only works for EC & RSA private keys.
  */
-int mbedtls_pk_wrap_as_opaque( mbedtls_pk_context *pk,
-                               mbedtls_svc_key_id_t *key,
-                               psa_algorithm_t alg,
-                               psa_key_usage_t usage,
-                               psa_algorithm_t alg2 )
+int mbedtls_pk_wrap_as_opaque(mbedtls_pk_context *pk,
+                              mbedtls_svc_key_id_t *key,
+                              psa_algorithm_t alg,
+                              psa_key_usage_t usage,
+                              psa_algorithm_t alg2)
 {
 #if !defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_RSA_C)
     ((void) pk);
@@ -816,8 +865,7 @@
     ((void) alg2);
 #else
 #if defined(MBEDTLS_ECP_C)
-    if( mbedtls_pk_get_type( pk ) == MBEDTLS_PK_ECKEY )
-    {
+    if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECKEY) {
         const mbedtls_ecp_keypair *ec;
         unsigned char d[MBEDTLS_ECP_MAX_BYTES];
         size_t d_len;
@@ -829,76 +877,79 @@
         psa_status_t status;
 
         /* export the private key material in the format PSA wants */
-        ec = mbedtls_pk_ec( *pk );
-        d_len = PSA_BITS_TO_BYTES( ec->grp.nbits );
-        if( ( ret = mbedtls_mpi_write_binary( &ec->d, d, d_len ) ) != 0 )
-            return( ret );
+        ec = mbedtls_pk_ec(*pk);
+        d_len = PSA_BITS_TO_BYTES(ec->grp.nbits);
+        if ((ret = mbedtls_mpi_write_binary(&ec->d, d, d_len)) != 0) {
+            return ret;
+        }
 
-        curve_id = mbedtls_ecc_group_to_psa( ec->grp.id, &bits );
-        key_type = PSA_KEY_TYPE_ECC_KEY_PAIR( curve_id );
+        curve_id = mbedtls_ecc_group_to_psa(ec->grp.id, &bits);
+        key_type = PSA_KEY_TYPE_ECC_KEY_PAIR(curve_id);
 
         /* prepare the key attributes */
-        psa_set_key_type( &attributes, key_type );
-        psa_set_key_bits( &attributes, bits );
-        psa_set_key_usage_flags( &attributes, usage );
-        psa_set_key_algorithm( &attributes, alg );
-        if( alg2 != PSA_ALG_NONE )
-            psa_set_key_enrollment_algorithm( &attributes, alg2 );
+        psa_set_key_type(&attributes, key_type);
+        psa_set_key_bits(&attributes, bits);
+        psa_set_key_usage_flags(&attributes, usage);
+        psa_set_key_algorithm(&attributes, alg);
+        if (alg2 != PSA_ALG_NONE) {
+            psa_set_key_enrollment_algorithm(&attributes, alg2);
+        }
 
         /* import private key into PSA */
-        status = psa_import_key( &attributes, d, d_len, key );
-        if( status != PSA_SUCCESS )
-            return( mbedtls_pk_error_from_psa( status ) );
+        status = psa_import_key(&attributes, d, d_len, key);
+        if (status != PSA_SUCCESS) {
+            return mbedtls_pk_error_from_psa(status);
+        }
 
         /* make PK context wrap the key slot */
-        mbedtls_pk_free( pk );
-        mbedtls_pk_init( pk );
+        mbedtls_pk_free(pk);
+        mbedtls_pk_init(pk);
 
-        return( mbedtls_pk_setup_opaque( pk, *key ) );
-    }
-    else
+        return mbedtls_pk_setup_opaque(pk, *key);
+    } else
 #endif /* MBEDTLS_ECP_C */
 #if defined(MBEDTLS_RSA_C)
-    if( mbedtls_pk_get_type( pk ) == MBEDTLS_PK_RSA )
-    {
+    if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_RSA) {
         unsigned char buf[MBEDTLS_PK_RSA_PRV_DER_MAX_BYTES];
         psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
         int key_len;
         psa_status_t status;
 
         /* export the private key material in the format PSA wants */
-        key_len = mbedtls_pk_write_key_der( pk, buf, sizeof( buf ) );
-        if( key_len <= 0 )
-            return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+        key_len = mbedtls_pk_write_key_der(pk, buf, sizeof(buf));
+        if (key_len <= 0) {
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        }
 
         /* prepare the key attributes */
-        psa_set_key_type( &attributes, PSA_KEY_TYPE_RSA_KEY_PAIR );
-        psa_set_key_bits( &attributes, mbedtls_pk_get_bitlen( pk ) );
-        psa_set_key_usage_flags( &attributes, usage );
-        psa_set_key_algorithm( &attributes, alg );
-        if( alg2 != PSA_ALG_NONE )
-            psa_set_key_enrollment_algorithm( &attributes, alg2 );
+        psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
+        psa_set_key_bits(&attributes, mbedtls_pk_get_bitlen(pk));
+        psa_set_key_usage_flags(&attributes, usage);
+        psa_set_key_algorithm(&attributes, alg);
+        if (alg2 != PSA_ALG_NONE) {
+            psa_set_key_enrollment_algorithm(&attributes, alg2);
+        }
 
         /* import private key into PSA */
-        status = psa_import_key( &attributes,
-                                 buf + sizeof( buf ) - key_len,
-                                 key_len, key);
+        status = psa_import_key(&attributes,
+                                buf + sizeof(buf) - key_len,
+                                key_len, key);
 
-        mbedtls_platform_zeroize( buf, sizeof( buf ) );
+        mbedtls_platform_zeroize(buf, sizeof(buf));
 
-        if( status != PSA_SUCCESS )
-            return( mbedtls_pk_error_from_psa( status ) );
+        if (status != PSA_SUCCESS) {
+            return mbedtls_pk_error_from_psa(status);
+        }
 
         /* make PK context wrap the key slot */
-        mbedtls_pk_free( pk );
-        mbedtls_pk_init( pk );
+        mbedtls_pk_free(pk);
+        mbedtls_pk_init(pk);
 
-        return( mbedtls_pk_setup_opaque( pk, *key ) );
-    }
-    else
+        return mbedtls_pk_setup_opaque(pk, *key);
+    } else
 #endif /* MBEDTLS_RSA_C */
 #endif /* !MBEDTLS_ECP_C && !MBEDTLS_RSA_C */
-    return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
+    return MBEDTLS_ERR_PK_TYPE_MISMATCH;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 #endif /* MBEDTLS_PK_C */