diff --git a/library/lms.c b/library/lms.c
index 78c7d26..76bcc19 100644
--- a/library/lms.c
+++ b/library/lms.c
@@ -70,8 +70,8 @@
 #define MERKLE_TREE_INTERNAL_NODE_AM(type) ((size_t) 1 << MBEDTLS_LMS_H_TREE_HEIGHT(type))
 
 #define D_CONST_LEN           (2)
-static const unsigned char D_LEAF_CONSTANT_BYTES[D_CONST_LEN] = {0x82, 0x82};
-static const unsigned char D_INTR_CONSTANT_BYTES[D_CONST_LEN] = {0x83, 0x83};
+static const unsigned char D_LEAF_CONSTANT_BYTES[D_CONST_LEN] = { 0x82, 0x82 };
+static const unsigned char D_INTR_CONSTANT_BYTES[D_CONST_LEN] = { 0x83, 0x83 };
 
 
 /* Calculate the value of a leaf node of the Merkle tree (which is a hash of a
@@ -92,49 +92,55 @@
  *
  *  out                 The output node value, which is a hash output.
  */
-static int create_merkle_leaf_value( const mbedtls_lms_parameters_t *params,
-                                     unsigned char *pub_key,
-                                     unsigned int r_node_idx,
-                                     unsigned char *out )
+static int create_merkle_leaf_value(const mbedtls_lms_parameters_t *params,
+                                    unsigned char *pub_key,
+                                    unsigned int r_node_idx,
+                                    unsigned char *out)
 {
     psa_hash_operation_t op;
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     size_t output_hash_len;
     unsigned char r_node_idx_bytes[4];
 
-    op = psa_hash_operation_init( );
-    status = psa_hash_setup( &op, PSA_ALG_SHA_256 );
-    if( status != PSA_SUCCESS )
+    op = psa_hash_operation_init();
+    status = psa_hash_setup(&op, PSA_ALG_SHA_256);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, params->I_key_identifier,
-                              MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, params->I_key_identifier,
+                             MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    mbedtls_lms_unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
-    status = psa_hash_update( &op, r_node_idx_bytes, 4 );
-    if( status != PSA_SUCCESS )
+    mbedtls_lms_unsigned_int_to_network_bytes(r_node_idx, 4, r_node_idx_bytes);
+    status = psa_hash_update(&op, r_node_idx_bytes, 4);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, D_LEAF_CONSTANT_BYTES, D_CONST_LEN );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, D_LEAF_CONSTANT_BYTES, D_CONST_LEN);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, pub_key,
-                              MBEDTLS_LMOTS_N_HASH_LEN(params->otstype) );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, pub_key,
+                             MBEDTLS_LMOTS_N_HASH_LEN(params->otstype));
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_finish( &op, out, MBEDTLS_LMS_M_NODE_BYTES(params->type),
-                              &output_hash_len );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_finish(&op, out, MBEDTLS_LMS_M_NODE_BYTES(params->type),
+                             &output_hash_len);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
 exit:
-    psa_hash_abort( &op );
+    psa_hash_abort(&op);
 
-    return ( mbedtls_lms_error_from_psa( status ) );
+    return mbedtls_lms_error_from_psa(status);
 }
 
 /* Calculate the value of an internal node of the Merkle tree (which is a hash
@@ -159,143 +165,144 @@
  *
  *  out                 The output node value, which is a hash output.
  */
-static int create_merkle_internal_value( const mbedtls_lms_parameters_t *params,
-                                         const unsigned char *left_node,
-                                         const unsigned char *right_node,
-                                         unsigned int r_node_idx,
-                                         unsigned char *out )
+static int create_merkle_internal_value(const mbedtls_lms_parameters_t *params,
+                                        const unsigned char *left_node,
+                                        const unsigned char *right_node,
+                                        unsigned int r_node_idx,
+                                        unsigned char *out)
 {
     psa_hash_operation_t op;
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     size_t output_hash_len;
     unsigned char r_node_idx_bytes[4];
 
-    op = psa_hash_operation_init( );
-    status = psa_hash_setup( &op, PSA_ALG_SHA_256 );
-    if( status != PSA_SUCCESS )
+    op = psa_hash_operation_init();
+    status = psa_hash_setup(&op, PSA_ALG_SHA_256);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, params->I_key_identifier,
-                              MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, params->I_key_identifier,
+                             MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    mbedtls_lms_unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
-    status = psa_hash_update( &op, r_node_idx_bytes, 4 );
-    if( status != PSA_SUCCESS )
+    mbedtls_lms_unsigned_int_to_network_bytes(r_node_idx, 4, r_node_idx_bytes);
+    status = psa_hash_update(&op, r_node_idx_bytes, 4);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, D_INTR_CONSTANT_BYTES, D_CONST_LEN );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, D_INTR_CONSTANT_BYTES, D_CONST_LEN);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, left_node,
-                              MBEDTLS_LMS_M_NODE_BYTES(params->type) );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, left_node,
+                             MBEDTLS_LMS_M_NODE_BYTES(params->type));
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_update( &op, right_node,
-                              MBEDTLS_LMS_M_NODE_BYTES(params->type) );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_update(&op, right_node,
+                             MBEDTLS_LMS_M_NODE_BYTES(params->type));
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
-    status = psa_hash_finish( &op, out, MBEDTLS_LMS_M_NODE_BYTES(params->type),
-                           &output_hash_len );
-    if( status != PSA_SUCCESS )
+    status = psa_hash_finish(&op, out, MBEDTLS_LMS_M_NODE_BYTES(params->type),
+                             &output_hash_len);
+    if (status != PSA_SUCCESS) {
         goto exit;
+    }
 
 exit:
-    psa_hash_abort( &op );
+    psa_hash_abort(&op);
 
-    return( mbedtls_lms_error_from_psa( status ) );
+    return mbedtls_lms_error_from_psa(status);
 }
 
-void mbedtls_lms_public_init( mbedtls_lms_public_t *ctx )
+void mbedtls_lms_public_init(mbedtls_lms_public_t *ctx)
 {
-    memset( ctx, 0, sizeof( *ctx ) ) ;
+    memset(ctx, 0, sizeof(*ctx));
 }
 
-void mbedtls_lms_public_free( mbedtls_lms_public_t *ctx )
+void mbedtls_lms_public_free(mbedtls_lms_public_t *ctx)
 {
-    mbedtls_platform_zeroize( ctx, sizeof( *ctx ) );
+    mbedtls_platform_zeroize(ctx, sizeof(*ctx));
 }
 
-int mbedtls_lms_import_public_key( mbedtls_lms_public_t *ctx,
-                               const unsigned char *key, size_t key_size )
+int mbedtls_lms_import_public_key(mbedtls_lms_public_t *ctx,
+                                  const unsigned char *key, size_t key_size)
 {
     mbedtls_lms_algorithm_type_t type;
     mbedtls_lmots_algorithm_type_t otstype;
 
-    type = mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
-            key + PUBLIC_KEY_TYPE_OFFSET );
-    if( type != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    type = mbedtls_lms_network_bytes_to_unsigned_int(MBEDTLS_LMS_TYPE_LEN,
+                                                     key + PUBLIC_KEY_TYPE_OFFSET);
+    if (type != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
     ctx->params.type = type;
 
-    if( key_size != MBEDTLS_LMS_PUBLIC_KEY_LEN(ctx->params.type) )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (key_size != MBEDTLS_LMS_PUBLIC_KEY_LEN(ctx->params.type)) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    otstype = mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
-            key + PUBLIC_KEY_OTSTYPE_OFFSET );
-    if( otstype != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    otstype = mbedtls_lms_network_bytes_to_unsigned_int(MBEDTLS_LMOTS_TYPE_LEN,
+                                                        key + PUBLIC_KEY_OTSTYPE_OFFSET);
+    if (otstype != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
     ctx->params.otstype = otstype;
 
-    memcpy( ctx->params.I_key_identifier,
-            key + PUBLIC_KEY_I_KEY_ID_OFFSET,
-            MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    memcpy( ctx->T_1_pub_key, key + PUBLIC_KEY_ROOT_NODE_OFFSET,
-            MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type) );
+    memcpy(ctx->params.I_key_identifier,
+           key + PUBLIC_KEY_I_KEY_ID_OFFSET,
+           MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    memcpy(ctx->T_1_pub_key, key + PUBLIC_KEY_ROOT_NODE_OFFSET,
+           MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type));
 
     ctx->have_public_key = 1;
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_lms_export_public_key( const mbedtls_lms_public_t *ctx,
-                                   unsigned char *key,
-                                   size_t key_size, size_t *key_len )
+int mbedtls_lms_export_public_key(const mbedtls_lms_public_t *ctx,
+                                  unsigned char *key,
+                                  size_t key_size, size_t *key_len)
 {
-    if( key_size < MBEDTLS_LMS_PUBLIC_KEY_LEN(ctx->params.type) )
-    {
-        return( MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL );
+    if (key_size < MBEDTLS_LMS_PUBLIC_KEY_LEN(ctx->params.type)) {
+        return MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL;
     }
 
-    if( ! ctx->have_public_key )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (!ctx->have_public_key) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
     mbedtls_lms_unsigned_int_to_network_bytes(
-            ctx->params.type,
-            MBEDTLS_LMS_TYPE_LEN, key + PUBLIC_KEY_TYPE_OFFSET );
-    mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.otstype,
-                                   MBEDTLS_LMOTS_TYPE_LEN,
-                                   key + PUBLIC_KEY_OTSTYPE_OFFSET );
-    memcpy( key + PUBLIC_KEY_I_KEY_ID_OFFSET,
-            ctx->params.I_key_identifier,
-            MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    memcpy( key +PUBLIC_KEY_ROOT_NODE_OFFSET,
-            ctx->T_1_pub_key,
-            MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type) );
+        ctx->params.type,
+        MBEDTLS_LMS_TYPE_LEN, key + PUBLIC_KEY_TYPE_OFFSET);
+    mbedtls_lms_unsigned_int_to_network_bytes(ctx->params.otstype,
+                                              MBEDTLS_LMOTS_TYPE_LEN,
+                                              key + PUBLIC_KEY_OTSTYPE_OFFSET);
+    memcpy(key + PUBLIC_KEY_I_KEY_ID_OFFSET,
+           ctx->params.I_key_identifier,
+           MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    memcpy(key +PUBLIC_KEY_ROOT_NODE_OFFSET,
+           ctx->T_1_pub_key,
+           MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type));
 
-    if( key_len != NULL )
-    {
+    if (key_len != NULL) {
         *key_len = MBEDTLS_LMS_PUBLIC_KEY_LEN(ctx->params.type);
     }
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_lms_verify( const mbedtls_lms_public_t *ctx,
-                        const unsigned char *msg, size_t msg_size,
-                        const unsigned char *sig, size_t sig_size )
+int mbedtls_lms_verify(const mbedtls_lms_public_t *ctx,
+                       const unsigned char *msg, size_t msg_size,
+                       const unsigned char *sig, size_t sig_size)
 {
     unsigned int q_leaf_identifier;
     unsigned char Kc_candidate_ots_pub_key[MBEDTLS_LMOTS_N_HASH_LEN_MAX];
@@ -303,124 +310,114 @@
     unsigned int height;
     unsigned int curr_node_id;
     unsigned int parent_node_id;
-    const unsigned char* left_node;
-    const unsigned char* right_node;
+    const unsigned char *left_node;
+    const unsigned char *right_node;
     mbedtls_lmots_parameters_t ots_params;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ! ctx->have_public_key )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (!ctx->have_public_key) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( ctx->params.type
-        != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (ctx->params.type
+        != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( ctx->params.otstype
-        != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (ctx->params.otstype
+        != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( sig_size != MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype) )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (sig_size != MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype)) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    if( sig_size < SIG_OTS_SIG_OFFSET + MBEDTLS_LMOTS_TYPE_LEN )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (sig_size < SIG_OTS_SIG_OFFSET + MBEDTLS_LMOTS_TYPE_LEN) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    if( mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
-            sig + SIG_OTS_SIG_OFFSET + MBEDTLS_LMOTS_SIG_TYPE_OFFSET )
-        != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (mbedtls_lms_network_bytes_to_unsigned_int(MBEDTLS_LMOTS_TYPE_LEN,
+                                                  sig + SIG_OTS_SIG_OFFSET +
+                                                  MBEDTLS_LMOTS_SIG_TYPE_OFFSET)
+        != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    if( sig_size < SIG_TYPE_OFFSET(ctx->params.otstype) + MBEDTLS_LMS_TYPE_LEN )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (sig_size < SIG_TYPE_OFFSET(ctx->params.otstype) + MBEDTLS_LMS_TYPE_LEN) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    if( mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
-            sig + SIG_TYPE_OFFSET(ctx->params.otstype))
-        != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (mbedtls_lms_network_bytes_to_unsigned_int(MBEDTLS_LMS_TYPE_LEN,
+                                                  sig + SIG_TYPE_OFFSET(ctx->params.otstype))
+        != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
 
     q_leaf_identifier = mbedtls_lms_network_bytes_to_unsigned_int(
-            MBEDTLS_LMOTS_Q_LEAF_ID_LEN, sig + SIG_Q_LEAF_ID_OFFSET );
+        MBEDTLS_LMOTS_Q_LEAF_ID_LEN, sig + SIG_Q_LEAF_ID_OFFSET);
 
-    if( q_leaf_identifier >= MERKLE_TREE_LEAF_NODE_AM(ctx->params.type) )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (q_leaf_identifier >= MERKLE_TREE_LEAF_NODE_AM(ctx->params.type)) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    memcpy( ots_params.I_key_identifier,
-            ctx->params.I_key_identifier,
-            MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    mbedtls_lms_unsigned_int_to_network_bytes( q_leaf_identifier,
+    memcpy(ots_params.I_key_identifier,
+           ctx->params.I_key_identifier,
+           MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    mbedtls_lms_unsigned_int_to_network_bytes(q_leaf_identifier,
                                               MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
-                                              ots_params.q_leaf_identifier );
+                                              ots_params.q_leaf_identifier);
     ots_params.type = ctx->params.otstype;
 
-    ret = mbedtls_lmots_calculate_public_key_candidate( &ots_params, msg,
-            msg_size, sig + SIG_OTS_SIG_OFFSET,
-            MBEDTLS_LMOTS_SIG_LEN(ctx->params.otstype), Kc_candidate_ots_pub_key,
-            sizeof( Kc_candidate_ots_pub_key ), NULL );
-    if( ret != 0 )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    ret = mbedtls_lmots_calculate_public_key_candidate(&ots_params,
+                                                       msg,
+                                                       msg_size,
+                                                       sig + SIG_OTS_SIG_OFFSET,
+                                                       MBEDTLS_LMOTS_SIG_LEN(ctx->params.otstype),
+                                                       Kc_candidate_ots_pub_key,
+                                                       sizeof(Kc_candidate_ots_pub_key),
+                                                       NULL);
+    if (ret != 0) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
     create_merkle_leaf_value(
-            &ctx->params,
-            Kc_candidate_ots_pub_key,
-            MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + q_leaf_identifier,
-            Tc_candidate_root_node );
+        &ctx->params,
+        Kc_candidate_ots_pub_key,
+        MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + q_leaf_identifier,
+        Tc_candidate_root_node);
 
     curr_node_id = MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) +
                    q_leaf_identifier;
 
-    for( height = 0; height < MBEDTLS_LMS_H_TREE_HEIGHT(ctx->params.type);
-         height++ )
-    {
+    for (height = 0; height < MBEDTLS_LMS_H_TREE_HEIGHT(ctx->params.type);
+         height++) {
         parent_node_id = curr_node_id / 2;
 
         /* Left/right node ordering matters for the hash */
-        if( curr_node_id & 1 )
-        {
+        if (curr_node_id & 1) {
             left_node = sig + SIG_PATH_OFFSET(ctx->params.otstype) +
                         height * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type);
             right_node = Tc_candidate_root_node;
-        }
-        else
-        {
+        } else {
             left_node = Tc_candidate_root_node;
             right_node = sig + SIG_PATH_OFFSET(ctx->params.otstype) +
                          height * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type);
         }
 
-        create_merkle_internal_value( &ctx->params, left_node, right_node,
-                                      parent_node_id, Tc_candidate_root_node);
+        create_merkle_internal_value(&ctx->params, left_node, right_node,
+                                     parent_node_id, Tc_candidate_root_node);
 
         curr_node_id /= 2;
     }
 
-    if( memcmp( Tc_candidate_root_node, ctx->T_1_pub_key,
-                MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)) )
-    {
-        return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
+    if (memcmp(Tc_candidate_root_node, ctx->T_1_pub_key,
+               MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type))) {
+        return MBEDTLS_ERR_LMS_VERIFY_FAILED;
     }
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_LMS_PRIVATE)
@@ -439,47 +436,48 @@
  *                      because the Merkle tree root is 1-indexed, the 0
  *                      index tree node is never used.
  */
-static int calculate_merkle_tree( const mbedtls_lms_private_t *ctx,
-                                  unsigned char *tree )
+static int calculate_merkle_tree(const mbedtls_lms_private_t *ctx,
+                                 unsigned char *tree)
 {
     unsigned int priv_key_idx;
     unsigned int r_node_idx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
     /* First create the leaf nodes, in ascending order */
-    for( priv_key_idx = 0;
+    for (priv_key_idx = 0;
          priv_key_idx < MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type);
-         priv_key_idx++ )
-    {
+         priv_key_idx++) {
         r_node_idx = MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + priv_key_idx;
 
-        ret = create_merkle_leaf_value( &ctx->params,
-                ctx->ots_public_keys[priv_key_idx].public_key, r_node_idx,
-                &tree[r_node_idx * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)] );
-        if( ret != 0 )
-        {
-            return( ret );
+        ret = create_merkle_leaf_value(&ctx->params,
+                                       ctx->ots_public_keys[priv_key_idx].public_key,
+                                       r_node_idx,
+                                       &tree[r_node_idx * MBEDTLS_LMS_M_NODE_BYTES(
+                                                 ctx->params.type)]);
+        if (ret != 0) {
+            return ret;
         }
     }
 
     /* Then the internal nodes, in reverse order so that we can guarantee the
      * parent has been created */
-    for( r_node_idx = MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) - 1;
+    for (r_node_idx = MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) - 1;
          r_node_idx > 0;
-         r_node_idx-- )
-    {
-        ret = create_merkle_internal_value( &ctx->params,
-                &tree[( r_node_idx * 2 ) * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)],
-                &tree[( r_node_idx * 2 + 1 ) * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)],
-                r_node_idx,
-                &tree[r_node_idx * MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)] );
-        if( ret != 0 )
-        {
-            return( ret );
+         r_node_idx--) {
+        ret = create_merkle_internal_value(&ctx->params,
+                                           &tree[(r_node_idx * 2) *
+                                                 MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)],
+                                           &tree[(r_node_idx * 2 + 1) *
+                                                 MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)],
+                                           r_node_idx,
+                                           &tree[r_node_idx *
+                                                 MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type)]);
+        if (ret != 0) {
+            return ret;
         }
     }
 
-    return( 0 );
+    return 0;
 }
 
 /* Calculate a path from a leaf node of the Merkle tree to the root of the tree,
@@ -494,9 +492,9 @@
  *
  *  path                The output path, which is H hash outputs.
  */
-static int get_merkle_path( mbedtls_lms_private_t *ctx,
-                            unsigned int leaf_node_id,
-                            unsigned char *path )
+static int get_merkle_path(mbedtls_lms_private_t *ctx,
+                           unsigned int leaf_node_id,
+                           unsigned char *path)
 {
     const size_t node_bytes = MBEDTLS_LMS_M_NODE_BYTES(ctx->params.type);
     unsigned int curr_node_id = leaf_node_id;
@@ -505,254 +503,229 @@
     unsigned int height;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    tree = mbedtls_calloc( MERKLE_TREE_NODE_AM(ctx->params.type),
-        node_bytes );
-    if ( tree == NULL )
-    {
+    tree = mbedtls_calloc(MERKLE_TREE_NODE_AM(ctx->params.type),
+                          node_bytes);
+    if (tree == NULL) {
         return MBEDTLS_ERR_LMS_ALLOC_FAILED;
     }
 
-    ret = calculate_merkle_tree( ctx, tree );
-    if( ret != 0 )
-    {
+    ret = calculate_merkle_tree(ctx, tree);
+    if (ret != 0) {
         goto exit;
     }
 
-    for( height = 0; height < MBEDTLS_LMS_H_TREE_HEIGHT(ctx->params.type);
-         height++ )
-    {
+    for (height = 0; height < MBEDTLS_LMS_H_TREE_HEIGHT(ctx->params.type);
+         height++) {
         adjacent_node_id = curr_node_id ^ 1;
 
-        memcpy( &path[height * node_bytes],
-                &tree[adjacent_node_id * node_bytes], node_bytes );
+        memcpy(&path[height * node_bytes],
+               &tree[adjacent_node_id * node_bytes], node_bytes);
 
-        curr_node_id >>=1;
+        curr_node_id >>= 1;
     }
 
     ret = 0;
 
 exit:
-    mbedtls_platform_zeroize( tree, node_bytes *
-        MERKLE_TREE_NODE_AM(ctx->params.type) );
-    mbedtls_free ( tree );
+    mbedtls_platform_zeroize(tree, node_bytes *
+                             MERKLE_TREE_NODE_AM(ctx->params.type));
+    mbedtls_free(tree);
 
-    return( ret );
+    return ret;
 }
 
-void mbedtls_lms_private_init( mbedtls_lms_private_t *ctx )
+void mbedtls_lms_private_init(mbedtls_lms_private_t *ctx)
 {
-    memset( ctx, 0, sizeof( *ctx ) ) ;
+    memset(ctx, 0, sizeof(*ctx));
 }
 
-void mbedtls_lms_private_free( mbedtls_lms_private_t *ctx )
+void mbedtls_lms_private_free(mbedtls_lms_private_t *ctx)
 {
     unsigned int idx;
 
-    if( ctx->have_private_key )
-    {
-        if( ctx->ots_private_keys != NULL )
-        {
-            for( idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++ )
-            {
-                mbedtls_lmots_private_free( &ctx->ots_private_keys[idx] );
+    if (ctx->have_private_key) {
+        if (ctx->ots_private_keys != NULL) {
+            for (idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++) {
+                mbedtls_lmots_private_free(&ctx->ots_private_keys[idx]);
             }
         }
 
-        if( ctx->ots_public_keys != NULL )
-        {
-        for( idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++ )
-            {
-                mbedtls_lmots_public_free( &ctx->ots_public_keys[idx] );
+        if (ctx->ots_public_keys != NULL) {
+            for (idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++) {
+                mbedtls_lmots_public_free(&ctx->ots_public_keys[idx]);
             }
         }
 
-        mbedtls_free( ctx->ots_private_keys );
-        mbedtls_free( ctx->ots_public_keys );
+        mbedtls_free(ctx->ots_private_keys);
+        mbedtls_free(ctx->ots_public_keys);
     }
 
-    mbedtls_platform_zeroize( ctx, sizeof( *ctx ) );
+    mbedtls_platform_zeroize(ctx, sizeof(*ctx));
 }
 
 
-int mbedtls_lms_generate_private_key( mbedtls_lms_private_t *ctx,
-                                      mbedtls_lms_algorithm_type_t type,
-                                      mbedtls_lmots_algorithm_type_t otstype,
-                                      int (*f_rng)(void *, unsigned char *, size_t),
-                                      void* p_rng, const unsigned char *seed,
-                                      size_t seed_size )
+int mbedtls_lms_generate_private_key(mbedtls_lms_private_t *ctx,
+                                     mbedtls_lms_algorithm_type_t type,
+                                     mbedtls_lmots_algorithm_type_t otstype,
+                                     int (*f_rng)(void *, unsigned char *, size_t),
+                                     void *p_rng, const unsigned char *seed,
+                                     size_t seed_size)
 {
     unsigned int idx = 0;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( type != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (type != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( otstype != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (otstype != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( ctx->have_private_key )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (ctx->have_private_key) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
     ctx->params.type = type;
     ctx->params.otstype = otstype;
     ctx->have_private_key = 1;
 
-    ret = f_rng( p_rng,
-                 ctx->params.I_key_identifier,
-                 MBEDTLS_LMOTS_I_KEY_ID_LEN );
-    if( ret != 0 )
-    {
+    ret = f_rng(p_rng,
+                ctx->params.I_key_identifier,
+                MBEDTLS_LMOTS_I_KEY_ID_LEN);
+    if (ret != 0) {
         goto exit;
     }
 
     /* Requires a cast to size_t to avoid an implicit cast warning on certain
      * platforms (particularly Windows) */
-    ctx->ots_private_keys = mbedtls_calloc( ( size_t )MERKLE_TREE_LEAF_NODE_AM(ctx->params.type),
-                                            sizeof( *ctx->ots_private_keys ) );
-    if( ctx->ots_private_keys == NULL )
-    {
+    ctx->ots_private_keys = mbedtls_calloc((size_t) MERKLE_TREE_LEAF_NODE_AM(ctx->params.type),
+                                           sizeof(*ctx->ots_private_keys));
+    if (ctx->ots_private_keys == NULL) {
         ret = MBEDTLS_ERR_LMS_ALLOC_FAILED;
         goto exit;
     }
 
     /* Requires a cast to size_t to avoid an implicit cast warning on certain
      * platforms (particularly Windows) */
-    ctx->ots_public_keys = mbedtls_calloc( ( size_t )MERKLE_TREE_LEAF_NODE_AM(ctx->params.type),
-                                           sizeof( *ctx->ots_public_keys ) );
-    if( ctx->ots_public_keys == NULL )
-    {
+    ctx->ots_public_keys = mbedtls_calloc((size_t) MERKLE_TREE_LEAF_NODE_AM(ctx->params.type),
+                                          sizeof(*ctx->ots_public_keys));
+    if (ctx->ots_public_keys == NULL) {
         ret = MBEDTLS_ERR_LMS_ALLOC_FAILED;
         goto exit;
     }
 
-    for( idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++ )
-    {
-        mbedtls_lmots_private_init( &ctx->ots_private_keys[idx] );
-        mbedtls_lmots_public_init( &ctx->ots_public_keys[idx] );
+    for (idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++) {
+        mbedtls_lmots_private_init(&ctx->ots_private_keys[idx]);
+        mbedtls_lmots_public_init(&ctx->ots_public_keys[idx]);
     }
 
 
-    for( idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++ )
-    {
-        ret = mbedtls_lmots_generate_private_key( &ctx->ots_private_keys[idx],
-                                                  otstype,
-                                                  ctx->params.I_key_identifier,
-                                                  idx, seed, seed_size );
-        if( ret != 0 )
+    for (idx = 0; idx < MERKLE_TREE_LEAF_NODE_AM(ctx->params.type); idx++) {
+        ret = mbedtls_lmots_generate_private_key(&ctx->ots_private_keys[idx],
+                                                 otstype,
+                                                 ctx->params.I_key_identifier,
+                                                 idx, seed, seed_size);
+        if (ret != 0) {
             goto exit;
+        }
 
-        ret = mbedtls_lmots_calculate_public_key( &ctx->ots_public_keys[idx],
-                                                  &ctx->ots_private_keys[idx] );
-        if( ret != 0 )
+        ret = mbedtls_lmots_calculate_public_key(&ctx->ots_public_keys[idx],
+                                                 &ctx->ots_private_keys[idx]);
+        if (ret != 0) {
             goto exit;
+        }
     }
 
     ctx->q_next_usable_key = 0;
 
 exit:
-    if( ret != 0 )
-    {
+    if (ret != 0) {
         mbedtls_lms_private_free(ctx);
     }
 
-    return( ret );
+    return ret;
 }
 
-int mbedtls_lms_calculate_public_key( mbedtls_lms_public_t *ctx,
-                                      const mbedtls_lms_private_t *priv_ctx )
+int mbedtls_lms_calculate_public_key(mbedtls_lms_public_t *ctx,
+                                     const mbedtls_lms_private_t *priv_ctx)
 {
     const size_t node_bytes = MBEDTLS_LMS_M_NODE_BYTES(priv_ctx->params.type);
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *tree = NULL;
 
-    if( ! priv_ctx->have_private_key )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (!priv_ctx->have_private_key) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( priv_ctx->params.type
-        != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (priv_ctx->params.type
+        != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( priv_ctx->params.otstype
-        != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (priv_ctx->params.otstype
+        != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    tree = mbedtls_calloc( MERKLE_TREE_NODE_AM(priv_ctx->params.type),
-        node_bytes );
-    if ( tree == NULL )
-    {
+    tree = mbedtls_calloc(MERKLE_TREE_NODE_AM(priv_ctx->params.type),
+                          node_bytes);
+    if (tree == NULL) {
         return MBEDTLS_ERR_LMS_ALLOC_FAILED;
     }
 
-    memcpy( &ctx->params, &priv_ctx->params,
-            sizeof( mbedtls_lmots_parameters_t ) );
+    memcpy(&ctx->params, &priv_ctx->params,
+           sizeof(mbedtls_lmots_parameters_t));
 
-    ret = calculate_merkle_tree( priv_ctx, tree );
-    if( ret != 0 )
-    {
+    ret = calculate_merkle_tree(priv_ctx, tree);
+    if (ret != 0) {
         goto exit;
     }
 
     /* Root node is always at position 1, due to 1-based indexing */
-    memcpy( ctx->T_1_pub_key, &tree[node_bytes], node_bytes );
+    memcpy(ctx->T_1_pub_key, &tree[node_bytes], node_bytes);
 
     ctx->have_public_key = 1;
 
     ret = 0;
 
 exit:
-    mbedtls_platform_zeroize( tree, node_bytes *
-        MERKLE_TREE_NODE_AM(priv_ctx->params.type) );
-    mbedtls_free ( tree );
+    mbedtls_platform_zeroize(tree, node_bytes *
+                             MERKLE_TREE_NODE_AM(priv_ctx->params.type));
+    mbedtls_free(tree);
 
-    return( ret );
+    return ret;
 }
 
 
-int mbedtls_lms_sign( mbedtls_lms_private_t *ctx,
-                      int (*f_rng)(void *, unsigned char *, size_t),
-                      void* p_rng, const unsigned char *msg,
-                      unsigned int msg_size, unsigned char *sig, size_t sig_size,
-                      size_t *sig_len )
+int mbedtls_lms_sign(mbedtls_lms_private_t *ctx,
+                     int (*f_rng)(void *, unsigned char *, size_t),
+                     void *p_rng, const unsigned char *msg,
+                     unsigned int msg_size, unsigned char *sig, size_t sig_size,
+                     size_t *sig_len)
 {
     uint32_t q_leaf_identifier;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ! ctx->have_private_key )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (!ctx->have_private_key) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( sig_size < MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype) )
-    {
-        return( MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL );
+    if (sig_size < MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype)) {
+        return MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL;
     }
 
-    if( ctx->params.type != MBEDTLS_LMS_SHA256_M32_H10 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (ctx->params.type != MBEDTLS_LMS_SHA256_M32_H10) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( ctx->params.otstype
-        != MBEDTLS_LMOTS_SHA256_N32_W8 )
-    {
-        return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (ctx->params.otstype
+        != MBEDTLS_LMOTS_SHA256_N32_W8) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    if( ctx->q_next_usable_key >= MERKLE_TREE_LEAF_NODE_AM(ctx->params.type) )
-    {
-        return( MBEDTLS_ERR_LMS_OUT_OF_PRIVATE_KEYS );
+    if (ctx->q_next_usable_key >= MERKLE_TREE_LEAF_NODE_AM(ctx->params.type)) {
+        return MBEDTLS_ERR_LMS_OUT_OF_PRIVATE_KEYS;
     }
 
 
@@ -762,44 +735,44 @@
      */
     ctx->q_next_usable_key += 1;
 
-    if ( MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype)
-         < SIG_OTS_SIG_OFFSET )
-    {
-        return ( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
+    if (MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype)
+        < SIG_OTS_SIG_OFFSET) {
+        return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
     }
 
-    ret = mbedtls_lmots_sign( &ctx->ots_private_keys[q_leaf_identifier],
-                              f_rng, p_rng, msg, msg_size,
-                              sig + SIG_OTS_SIG_OFFSET,
-                              MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype) - SIG_OTS_SIG_OFFSET,
-                              NULL );
-    if( ret != 0 )
-    {
-        return( ret );
+    ret = mbedtls_lmots_sign(&ctx->ots_private_keys[q_leaf_identifier],
+                             f_rng,
+                             p_rng,
+                             msg,
+                             msg_size,
+                             sig + SIG_OTS_SIG_OFFSET,
+                             MBEDTLS_LMS_SIG_LEN(ctx->params.type,
+                                                 ctx->params.otstype) - SIG_OTS_SIG_OFFSET,
+                             NULL);
+    if (ret != 0) {
+        return ret;
     }
 
-    mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.type,
-            MBEDTLS_LMS_TYPE_LEN,
-            sig + SIG_TYPE_OFFSET(ctx->params.otstype) );
-    mbedtls_lms_unsigned_int_to_network_bytes( q_leaf_identifier,
-            MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
-            sig + SIG_Q_LEAF_ID_OFFSET );
+    mbedtls_lms_unsigned_int_to_network_bytes(ctx->params.type,
+                                              MBEDTLS_LMS_TYPE_LEN,
+                                              sig + SIG_TYPE_OFFSET(ctx->params.otstype));
+    mbedtls_lms_unsigned_int_to_network_bytes(q_leaf_identifier,
+                                              MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
+                                              sig + SIG_Q_LEAF_ID_OFFSET);
 
-    ret = get_merkle_path( ctx,
-            MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + q_leaf_identifier,
-            sig + SIG_PATH_OFFSET(ctx->params.otstype) );
-    if( ret != 0 )
-    {
-        return( ret );
+    ret = get_merkle_path(ctx,
+                          MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + q_leaf_identifier,
+                          sig + SIG_PATH_OFFSET(ctx->params.otstype));
+    if (ret != 0) {
+        return ret;
     }
 
-    if( sig_len != NULL )
-    {
+    if (sig_len != NULL) {
         *sig_len = MBEDTLS_LMS_SIG_LEN(ctx->params.type, ctx->params.otstype);
     }
 
 
-    return( 0 );
+    return 0;
 }
 
 #endif /* defined(MBEDTLS_LMS_PRIVATE) */