diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index f35abf2..f577fcc 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -56,130 +56,138 @@
 #include <stdint.h>
 
 #if defined(MBEDTLS_RSA_C)
-static int rsa_can_do( mbedtls_pk_type_t type )
+static int rsa_can_do(mbedtls_pk_type_t type)
 {
-    return( type == MBEDTLS_PK_RSA ||
-            type == MBEDTLS_PK_RSASSA_PSS );
+    return type == MBEDTLS_PK_RSA ||
+           type == MBEDTLS_PK_RSASSA_PSS;
 }
 
-static size_t rsa_get_bitlen( const void *ctx )
+static size_t rsa_get_bitlen(const void *ctx)
 {
-    const mbedtls_rsa_context * rsa = (const mbedtls_rsa_context *) ctx;
-    return( 8 * mbedtls_rsa_get_len( rsa ) );
+    const mbedtls_rsa_context *rsa = (const mbedtls_rsa_context *) ctx;
+    return 8 * mbedtls_rsa_get_len(rsa);
 }
 
-static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   const unsigned char *sig, size_t sig_len )
+static int rsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                           const unsigned char *hash, size_t hash_len,
+                           const unsigned char *sig, size_t sig_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
-    size_t rsa_len = mbedtls_rsa_get_len( rsa );
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    size_t rsa_len = mbedtls_rsa_get_len(rsa);
 
 #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( sig_len < rsa_len )
-        return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
+    if (sig_len < rsa_len) {
+        return MBEDTLS_ERR_RSA_VERIFY_FAILED;
+    }
 
-    if( ( ret = mbedtls_rsa_pkcs1_verify( rsa, NULL, NULL,
-                                  MBEDTLS_RSA_PUBLIC, md_alg,
-                                  (unsigned int) hash_len, hash, sig ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_rsa_pkcs1_verify(rsa, NULL, NULL,
+                                        MBEDTLS_RSA_PUBLIC, md_alg,
+                                        (unsigned int) hash_len, hash, sig)) != 0) {
+        return ret;
+    }
 
     /* The buffer contains a valid signature followed by extra data.
      * We have a special error code for that so that so that callers can
      * use mbedtls_pk_verify() to check "Does the buffer start with a
      * valid signature?" and not just "Does the buffer contain a valid
      * signature?". */
-    if( sig_len > rsa_len )
-        return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
+    if (sig_len > rsa_len) {
+        return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
+    }
 
-    return( 0 );
+    return 0;
 }
 
-static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int rsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                         const unsigned char *hash, size_t hash_len,
+                         unsigned char *sig, size_t *sig_len,
+                         int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
 
 #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 */
 
-    *sig_len = mbedtls_rsa_get_len( rsa );
+    *sig_len = mbedtls_rsa_get_len(rsa);
 
-    return( mbedtls_rsa_pkcs1_sign( rsa, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
-                md_alg, (unsigned int) hash_len, hash, sig ) );
+    return mbedtls_rsa_pkcs1_sign(rsa, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
+                                  md_alg, (unsigned int) hash_len, hash, sig);
 }
 
-static int rsa_decrypt_wrap( void *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 )
+static int rsa_decrypt_wrap(void *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)
 {
-    mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
 
-    if( ilen != mbedtls_rsa_get_len( rsa ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen != mbedtls_rsa_get_len(rsa)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    return( mbedtls_rsa_pkcs1_decrypt( rsa, f_rng, p_rng,
-                MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
+    return mbedtls_rsa_pkcs1_decrypt(rsa, f_rng, p_rng,
+                                     MBEDTLS_RSA_PRIVATE, olen, input, output, osize);
 }
 
-static int rsa_encrypt_wrap( void *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 )
+static int rsa_encrypt_wrap(void *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)
 {
-    mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
-    *olen = mbedtls_rsa_get_len( rsa );
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    *olen = mbedtls_rsa_get_len(rsa);
 
-    if( *olen > osize )
-        return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
+    if (*olen > osize) {
+        return MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE;
+    }
 
-    return( mbedtls_rsa_pkcs1_encrypt( rsa, f_rng, p_rng, MBEDTLS_RSA_PUBLIC,
-                                       ilen, input, output ) );
+    return mbedtls_rsa_pkcs1_encrypt(rsa, f_rng, p_rng, MBEDTLS_RSA_PUBLIC,
+                                     ilen, input, output);
 }
 
-static int rsa_check_pair_wrap( const void *pub, const void *prv )
+static int rsa_check_pair_wrap(const void *pub, const void *prv)
 {
-    return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub,
-                                (const mbedtls_rsa_context *) prv ) );
+    return mbedtls_rsa_check_pub_priv((const mbedtls_rsa_context *) pub,
+                                      (const mbedtls_rsa_context *) prv);
 }
 
-static void *rsa_alloc_wrap( void )
+static void *rsa_alloc_wrap(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) );
+    void *ctx = mbedtls_calloc(1, sizeof(mbedtls_rsa_context));
 
-    if( ctx != NULL )
-        mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 );
+    if (ctx != NULL) {
+        mbedtls_rsa_init((mbedtls_rsa_context *) ctx, 0, 0);
+    }
 
-    return( ctx );
+    return ctx;
 }
 
-static void rsa_free_wrap( void *ctx )
+static void rsa_free_wrap(void *ctx)
 {
-    mbedtls_rsa_free( (mbedtls_rsa_context *) ctx );
-    mbedtls_free( ctx );
+    mbedtls_rsa_free((mbedtls_rsa_context *) ctx);
+    mbedtls_free(ctx);
 }
 
-static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items )
+static void rsa_debug(const void *ctx, mbedtls_pk_debug_item *items)
 {
     items->type = MBEDTLS_PK_DEBUG_MPI;
     items->name = "rsa.N";
-    items->value = &( ((mbedtls_rsa_context *) ctx)->N );
+    items->value = &(((mbedtls_rsa_context *) ctx)->N);
 
     items++;
 
     items->type = MBEDTLS_PK_DEBUG_MPI;
     items->name = "rsa.E";
-    items->value = &( ((mbedtls_rsa_context *) ctx)->E );
+    items->value = &(((mbedtls_rsa_context *) ctx)->E);
 }
 
 const mbedtls_pk_info_t mbedtls_rsa_info = {
@@ -210,77 +218,79 @@
 /*
  * Generic EC key
  */
-static int eckey_can_do( mbedtls_pk_type_t type )
+static int eckey_can_do(mbedtls_pk_type_t type)
 {
-    return( type == MBEDTLS_PK_ECKEY ||
-            type == MBEDTLS_PK_ECKEY_DH ||
-            type == MBEDTLS_PK_ECDSA );
+    return type == MBEDTLS_PK_ECKEY ||
+           type == MBEDTLS_PK_ECKEY_DH ||
+           type == MBEDTLS_PK_ECDSA;
 }
 
-static size_t eckey_get_bitlen( const void *ctx )
+static size_t eckey_get_bitlen(const void *ctx)
 {
-    return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits );
+    return ((mbedtls_ecp_keypair *) ctx)->grp.pbits;
 }
 
 #if defined(MBEDTLS_ECDSA_C)
 /* Forward declarations */
-static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len );
+static int ecdsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                             const unsigned char *hash, size_t hash_len,
+                             const unsigned char *sig, size_t sig_len);
 
-static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
+static int ecdsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                           const unsigned char *hash, size_t hash_len,
+                           unsigned char *sig, size_t *sig_len,
+                           int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
 
-static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len )
+static int eckey_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                             const unsigned char *hash, size_t hash_len,
+                             const unsigned char *sig, size_t sig_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ecdsa_context ecdsa;
 
-    mbedtls_ecdsa_init( &ecdsa );
+    mbedtls_ecdsa_init(&ecdsa);
 
-    if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
-        ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len );
+    if ((ret = mbedtls_ecdsa_from_keypair(&ecdsa, ctx)) == 0) {
+        ret = ecdsa_verify_wrap(&ecdsa, md_alg, hash, hash_len, sig, sig_len);
+    }
 
-    mbedtls_ecdsa_free( &ecdsa );
+    mbedtls_ecdsa_free(&ecdsa);
 
-    return( ret );
+    return ret;
 }
 
-static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int eckey_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                           const unsigned char *hash, size_t hash_len,
+                           unsigned char *sig, size_t *sig_len,
+                           int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ecdsa_context ecdsa;
 
-    mbedtls_ecdsa_init( &ecdsa );
+    mbedtls_ecdsa_init(&ecdsa);
 
-    if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
-        ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len,
-                               f_rng, p_rng );
+    if ((ret = mbedtls_ecdsa_from_keypair(&ecdsa, ctx)) == 0) {
+        ret = ecdsa_sign_wrap(&ecdsa, md_alg, hash, hash_len, sig, sig_len,
+                              f_rng, p_rng);
+    }
 
-    mbedtls_ecdsa_free( &ecdsa );
+    mbedtls_ecdsa_free(&ecdsa);
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)
 /* Forward declarations */
-static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len,
-                       void *rs_ctx );
+static int ecdsa_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                                const unsigned char *hash, size_t hash_len,
+                                const unsigned char *sig, size_t sig_len,
+                                void *rs_ctx);
 
-static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-                   void *rs_ctx );
+static int ecdsa_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                              const unsigned char *hash, size_t hash_len,
+                              unsigned char *sig, size_t *sig_len,
+                              int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+                              void *rs_ctx);
 
 /*
  * Restart context for ECDSA operations with ECKEY context
@@ -288,120 +298,124 @@
  * We need to store an actual ECDSA context, as we need to pass the same to
  * the underlying ecdsa function, so we can't create it on the fly every time.
  */
-typedef struct
-{
+typedef struct {
     mbedtls_ecdsa_restart_ctx ecdsa_rs;
     mbedtls_ecdsa_context ecdsa_ctx;
 } eckey_restart_ctx;
 
-static void *eckey_rs_alloc( void )
+static void *eckey_rs_alloc(void)
 {
     eckey_restart_ctx *rs_ctx;
 
-    void *ctx = mbedtls_calloc( 1, sizeof( eckey_restart_ctx ) );
+    void *ctx = mbedtls_calloc(1, sizeof(eckey_restart_ctx));
 
-    if( ctx != NULL )
-    {
+    if (ctx != NULL) {
         rs_ctx = ctx;
-        mbedtls_ecdsa_restart_init( &rs_ctx->ecdsa_rs );
-        mbedtls_ecdsa_init( &rs_ctx->ecdsa_ctx );
+        mbedtls_ecdsa_restart_init(&rs_ctx->ecdsa_rs);
+        mbedtls_ecdsa_init(&rs_ctx->ecdsa_ctx);
     }
 
-    return( ctx );
+    return ctx;
 }
 
-static void eckey_rs_free( void *ctx )
+static void eckey_rs_free(void *ctx)
 {
     eckey_restart_ctx *rs_ctx;
 
-    if( ctx == NULL)
+    if (ctx == NULL) {
         return;
+    }
 
     rs_ctx = ctx;
-    mbedtls_ecdsa_restart_free( &rs_ctx->ecdsa_rs );
-    mbedtls_ecdsa_free( &rs_ctx->ecdsa_ctx );
+    mbedtls_ecdsa_restart_free(&rs_ctx->ecdsa_rs);
+    mbedtls_ecdsa_free(&rs_ctx->ecdsa_ctx);
 
-    mbedtls_free( ctx );
+    mbedtls_free(ctx);
 }
 
-static int eckey_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len,
-                       void *rs_ctx )
+static int eckey_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                                const unsigned char *hash, size_t hash_len,
+                                const unsigned char *sig, size_t sig_len,
+                                void *rs_ctx)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     eckey_restart_ctx *rs = rs_ctx;
 
     /* Should never happen */
-    if( rs == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (rs == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
     /* set up our own sub-context if needed (that is, on first run) */
-    if( rs->ecdsa_ctx.grp.pbits == 0 )
-        MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
+    if (rs->ecdsa_ctx.grp.pbits == 0) {
+        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, ctx));
+    }
 
-    MBEDTLS_MPI_CHK( ecdsa_verify_rs_wrap( &rs->ecdsa_ctx,
-                                           md_alg, hash, hash_len,
-                                           sig, sig_len, &rs->ecdsa_rs ) );
+    MBEDTLS_MPI_CHK(ecdsa_verify_rs_wrap(&rs->ecdsa_ctx,
+                                         md_alg, hash, hash_len,
+                                         sig, sig_len, &rs->ecdsa_rs));
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
-static int eckey_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-                       void *rs_ctx )
+static int eckey_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                              const unsigned char *hash, size_t hash_len,
+                              unsigned char *sig, size_t *sig_len,
+                              int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+                              void *rs_ctx)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     eckey_restart_ctx *rs = rs_ctx;
 
     /* Should never happen */
-    if( rs == NULL )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (rs == NULL) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
     /* set up our own sub-context if needed (that is, on first run) */
-    if( rs->ecdsa_ctx.grp.pbits == 0 )
-        MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
+    if (rs->ecdsa_ctx.grp.pbits == 0) {
+        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, ctx));
+    }
 
-    MBEDTLS_MPI_CHK( ecdsa_sign_rs_wrap( &rs->ecdsa_ctx, md_alg,
-                                         hash, hash_len, sig, sig_len,
-                                         f_rng, p_rng, &rs->ecdsa_rs ) );
+    MBEDTLS_MPI_CHK(ecdsa_sign_rs_wrap(&rs->ecdsa_ctx, md_alg,
+                                       hash, hash_len, sig, sig_len,
+                                       f_rng, p_rng, &rs->ecdsa_rs));
 
 cleanup:
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 #endif /* MBEDTLS_ECDSA_C */
 
-static int eckey_check_pair( const void *pub, const void *prv )
+static int eckey_check_pair(const void *pub, const void *prv)
 {
-    return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub,
-                                (const mbedtls_ecp_keypair *) prv ) );
+    return mbedtls_ecp_check_pub_priv((const mbedtls_ecp_keypair *) pub,
+                                      (const mbedtls_ecp_keypair *) prv);
 }
 
-static void *eckey_alloc_wrap( void )
+static void *eckey_alloc_wrap(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) );
+    void *ctx = mbedtls_calloc(1, sizeof(mbedtls_ecp_keypair));
 
-    if( ctx != NULL )
-        mbedtls_ecp_keypair_init( ctx );
+    if (ctx != NULL) {
+        mbedtls_ecp_keypair_init(ctx);
+    }
 
-    return( ctx );
+    return ctx;
 }
 
-static void eckey_free_wrap( void *ctx )
+static void eckey_free_wrap(void *ctx)
 {
-    mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx );
-    mbedtls_free( ctx );
+    mbedtls_ecp_keypair_free((mbedtls_ecp_keypair *) ctx);
+    mbedtls_free(ctx);
 }
 
-static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items )
+static void eckey_debug(const void *ctx, mbedtls_pk_debug_item *items)
 {
     items->type = MBEDTLS_PK_DEBUG_ECP;
     items->name = "eckey.Q";
-    items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q );
+    items->value = &(((mbedtls_ecp_keypair *) ctx)->Q);
 }
 
 const mbedtls_pk_info_t mbedtls_eckey_info = {
@@ -435,10 +449,10 @@
 /*
  * EC key restricted to ECDH
  */
-static int eckeydh_can_do( mbedtls_pk_type_t type )
+static int eckeydh_can_do(mbedtls_pk_type_t type)
 {
-    return( type == MBEDTLS_PK_ECKEY ||
-            type == MBEDTLS_PK_ECKEY_DH );
+    return type == MBEDTLS_PK_ECKEY ||
+           type == MBEDTLS_PK_ECKEY_DH;
 }
 
 const mbedtls_pk_info_t mbedtls_eckeydh_info = {
@@ -466,9 +480,9 @@
 #endif /* MBEDTLS_ECP_C */
 
 #if defined(MBEDTLS_ECDSA_C)
-static int ecdsa_can_do( mbedtls_pk_type_t type )
+static int ecdsa_can_do(mbedtls_pk_type_t type)
 {
-    return( type == MBEDTLS_PK_ECDSA );
+    return type == MBEDTLS_PK_ECDSA;
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -476,33 +490,32 @@
  * An ASN.1 encoded signature is a sequence of two ASN.1 integers. Parse one of
  * those integers and convert it to the fixed-length encoding expected by PSA.
  */
-static int extract_ecdsa_sig_int( unsigned char **from, const unsigned char *end,
-                                  unsigned char *to, size_t to_len )
+static int extract_ecdsa_sig_int(unsigned char **from, const unsigned char *end,
+                                 unsigned char *to, size_t to_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t unpadded_len, padding_len;
 
-    if( ( ret = mbedtls_asn1_get_tag( from, end, &unpadded_len,
-                                      MBEDTLS_ASN1_INTEGER ) ) != 0 )
-    {
-        return( ret );
+    if ((ret = mbedtls_asn1_get_tag(from, end, &unpadded_len,
+                                    MBEDTLS_ASN1_INTEGER)) != 0) {
+        return ret;
     }
 
-    while( unpadded_len > 0 && **from == 0x00 )
-    {
-        ( *from )++;
+    while (unpadded_len > 0 && **from == 0x00) {
+        (*from)++;
         unpadded_len--;
     }
 
-    if( unpadded_len > to_len || unpadded_len == 0 )
-        return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
+    if (unpadded_len > to_len || unpadded_len == 0) {
+        return MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
+    }
 
     padding_len = to_len - unpadded_len;
-    memset( to, 0x00, padding_len );
-    memcpy( to + padding_len, *from, unpadded_len );
-    ( *from ) += unpadded_len;
+    memset(to, 0x00, padding_len);
+    memcpy(to + padding_len, *from, unpadded_len);
+    (*from) += unpadded_len;
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -510,29 +523,32 @@
  * to a raw {r,s} buffer. Note: the provided sig buffer must be at least
  * twice as big as int_size.
  */
-static int extract_ecdsa_sig( unsigned char **p, const unsigned char *end,
-                              unsigned char *sig, size_t int_size )
+static int extract_ecdsa_sig(unsigned char **p, const unsigned char *end,
+                             unsigned char *sig, size_t int_size)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t tmp_size;
 
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &tmp_size,
-                MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_asn1_get_tag(p, end, &tmp_size,
+                                    MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
+        return ret;
+    }
 
     /* Extract r */
-    if( ( ret = extract_ecdsa_sig_int( p, end, sig, int_size ) ) != 0 )
-        return( ret );
+    if ((ret = extract_ecdsa_sig_int(p, end, sig, int_size)) != 0) {
+        return ret;
+    }
     /* Extract s */
-    if( ( ret = extract_ecdsa_sig_int( p, end, sig + int_size, int_size ) ) != 0 )
-        return( ret );
+    if ((ret = extract_ecdsa_sig_int(p, end, sig + int_size, int_size)) != 0) {
+        return ret;
+    }
 
-    return( 0 );
+    return 0;
 }
 
-static int ecdsa_verify_wrap( void *ctx_arg, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len )
+static int ecdsa_verify_wrap(void *ctx_arg, mbedtls_md_type_t md_alg,
+                             const unsigned char *hash, size_t hash_len,
+                             const unsigned char *sig, size_t sig_len)
 {
     mbedtls_ecdsa_context *ctx = ctx_arg;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -548,162 +564,163 @@
     psa_algorithm_t psa_sig_md = PSA_ALG_ECDSA_ANY;
     size_t curve_bits;
     psa_ecc_family_t curve =
-        mbedtls_ecc_group_to_psa( ctx->grp.id, &curve_bits );
-    const size_t signature_part_size = ( ctx->grp.nbits + 7 ) / 8;
+        mbedtls_ecc_group_to_psa(ctx->grp.id, &curve_bits);
+    const size_t signature_part_size = (ctx->grp.nbits + 7) / 8;
     ((void) md_alg);
 
-    if( curve == 0 )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (curve == 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
     /* mbedtls_pk_write_pubkey() expects a full PK context;
      * re-construct one to make it happy */
     key.pk_info = &pk_info;
     key.pk_ctx = ctx;
-    p = buf + sizeof( buf );
-    key_len = mbedtls_pk_write_pubkey( &p, buf, &key );
-    if( key_len <= 0 )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    p = buf + sizeof(buf);
+    key_len = mbedtls_pk_write_pubkey(&p, buf, &key);
+    if (key_len <= 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    psa_set_key_type( &attributes, PSA_KEY_TYPE_ECC_PUBLIC_KEY( curve ) );
-    psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_VERIFY_HASH );
-    psa_set_key_algorithm( &attributes, psa_sig_md );
+    psa_set_key_type(&attributes, PSA_KEY_TYPE_ECC_PUBLIC_KEY(curve));
+    psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_VERIFY_HASH);
+    psa_set_key_algorithm(&attributes, psa_sig_md);
 
-    status = psa_import_key( &attributes,
-                             buf + sizeof( buf ) - key_len, key_len,
-                             &key_id );
-    if( status != PSA_SUCCESS )
-    {
-        ret = mbedtls_psa_err_translate_pk( status );
+    status = psa_import_key(&attributes,
+                            buf + sizeof(buf) - key_len, key_len,
+                            &key_id);
+    if (status != PSA_SUCCESS) {
+        ret = mbedtls_psa_err_translate_pk(status);
         goto cleanup;
     }
 
     /* We don't need the exported key anymore and can
      * reuse its buffer for signature extraction. */
-    if( 2 * signature_part_size > sizeof( buf ) )
-    {
+    if (2 * signature_part_size > sizeof(buf)) {
         ret = MBEDTLS_ERR_PK_BAD_INPUT_DATA;
         goto cleanup;
     }
 
-    p = (unsigned char*) sig;
-    if( ( ret = extract_ecdsa_sig( &p, sig + sig_len, buf,
-                                   signature_part_size ) ) != 0 )
-    {
+    p = (unsigned char *) sig;
+    if ((ret = extract_ecdsa_sig(&p, sig + sig_len, buf,
+                                 signature_part_size)) != 0) {
         goto cleanup;
     }
 
-    if( psa_verify_hash( key_id, psa_sig_md,
-                         hash, hash_len,
-                         buf, 2 * signature_part_size )
-         != PSA_SUCCESS )
-    {
-         ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
-         goto cleanup;
+    if (psa_verify_hash(key_id, psa_sig_md,
+                        hash, hash_len,
+                        buf, 2 * signature_part_size)
+        != PSA_SUCCESS) {
+        ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
+        goto cleanup;
     }
 
-    if( p != sig + sig_len )
-    {
+    if (p != sig + sig_len) {
         ret = MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
         goto cleanup;
     }
     ret = 0;
 
 cleanup:
-    psa_destroy_key( key_id );
-    return( ret );
+    psa_destroy_key(key_id);
+    return ret;
 }
 #else /* MBEDTLS_USE_PSA_CRYPTO */
-static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len )
+static int ecdsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                             const unsigned char *hash, size_t hash_len,
+                             const unsigned char *sig, size_t sig_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     ((void) md_alg);
 
-    ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx,
-                                hash, hash_len, sig, sig_len );
+    ret = mbedtls_ecdsa_read_signature((mbedtls_ecdsa_context *) ctx,
+                                       hash, hash_len, sig, sig_len);
 
-    if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
-        return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
+    if (ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) {
+        return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
+    }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int ecdsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                           const unsigned char *hash, size_t hash_len,
+                           unsigned char *sig, size_t *sig_len,
+                           int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx,
-                md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) );
+    return mbedtls_ecdsa_write_signature((mbedtls_ecdsa_context *) ctx,
+                                         md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng);
 }
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)
-static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                       const unsigned char *hash, size_t hash_len,
-                       const unsigned char *sig, size_t sig_len,
-                       void *rs_ctx )
+static int ecdsa_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                                const unsigned char *hash, size_t hash_len,
+                                const unsigned char *sig, size_t sig_len,
+                                void *rs_ctx)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     ((void) md_alg);
 
     ret = mbedtls_ecdsa_read_signature_restartable(
-            (mbedtls_ecdsa_context *) ctx,
-            hash, hash_len, sig, sig_len,
-            (mbedtls_ecdsa_restart_ctx *) rs_ctx );
+        (mbedtls_ecdsa_context *) ctx,
+        hash, hash_len, sig, sig_len,
+        (mbedtls_ecdsa_restart_ctx *) rs_ctx);
 
-    if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
-        return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
+    if (ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) {
+        return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
+    }
 
-    return( ret );
+    return ret;
 }
 
-static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-                   void *rs_ctx )
+static int ecdsa_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                              const unsigned char *hash, size_t hash_len,
+                              unsigned char *sig, size_t *sig_len,
+                              int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+                              void *rs_ctx)
 {
-    return( mbedtls_ecdsa_write_signature_restartable(
-                (mbedtls_ecdsa_context *) ctx,
-                md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng,
-                (mbedtls_ecdsa_restart_ctx *) rs_ctx ) );
+    return mbedtls_ecdsa_write_signature_restartable(
+        (mbedtls_ecdsa_context *) ctx,
+        md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng,
+        (mbedtls_ecdsa_restart_ctx *) rs_ctx);
 
 }
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
-static void *ecdsa_alloc_wrap( void )
+static void *ecdsa_alloc_wrap(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) );
+    void *ctx = mbedtls_calloc(1, sizeof(mbedtls_ecdsa_context));
 
-    if( ctx != NULL )
-        mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx );
+    if (ctx != NULL) {
+        mbedtls_ecdsa_init((mbedtls_ecdsa_context *) ctx);
+    }
 
-    return( ctx );
+    return ctx;
 }
 
-static void ecdsa_free_wrap( void *ctx )
+static void ecdsa_free_wrap(void *ctx)
 {
-    mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx );
-    mbedtls_free( ctx );
+    mbedtls_ecdsa_free((mbedtls_ecdsa_context *) ctx);
+    mbedtls_free(ctx);
 }
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)
-static void *ecdsa_rs_alloc( void )
+static void *ecdsa_rs_alloc(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_restart_ctx ) );
+    void *ctx = mbedtls_calloc(1, sizeof(mbedtls_ecdsa_restart_ctx));
 
-    if( ctx != NULL )
-        mbedtls_ecdsa_restart_init( ctx );
+    if (ctx != NULL) {
+        mbedtls_ecdsa_restart_init(ctx);
+    }
 
-    return( ctx );
+    return ctx;
 }
 
-static void ecdsa_rs_free( void *ctx )
+static void ecdsa_rs_free(void *ctx)
 {
-    mbedtls_ecdsa_restart_free( ctx );
-    mbedtls_free( ctx );
+    mbedtls_ecdsa_restart_free(ctx);
+    mbedtls_free(ctx);
 }
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
@@ -736,99 +753,102 @@
  * Support for alternative RSA-private implementations
  */
 
-static int rsa_alt_can_do( mbedtls_pk_type_t type )
+static int rsa_alt_can_do(mbedtls_pk_type_t type)
 {
-    return( type == MBEDTLS_PK_RSA );
+    return type == MBEDTLS_PK_RSA;
 }
 
-static size_t rsa_alt_get_bitlen( const void *ctx )
+static size_t rsa_alt_get_bitlen(const void *ctx)
 {
     const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx;
 
-    return( 8 * rsa_alt->key_len_func( rsa_alt->key ) );
+    return 8 * rsa_alt->key_len_func(rsa_alt->key);
 }
 
-static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int rsa_alt_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                             const unsigned char *hash, size_t hash_len,
+                             unsigned char *sig, size_t *sig_len,
+                             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
     mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
 
 #if SIZE_MAX > UINT_MAX
-    if( UINT_MAX < hash_len )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    if (UINT_MAX < hash_len) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 #endif /* SIZE_MAX > UINT_MAX */
 
-    *sig_len = rsa_alt->key_len_func( rsa_alt->key );
-    if( *sig_len > MBEDTLS_PK_SIGNATURE_MAX_SIZE )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    *sig_len = rsa_alt->key_len_func(rsa_alt->key);
+    if (*sig_len > MBEDTLS_PK_SIGNATURE_MAX_SIZE) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
-    return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
-                md_alg, (unsigned int) hash_len, hash, sig ) );
+    return rsa_alt->sign_func(rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
+                              md_alg, (unsigned int) hash_len, hash, sig);
 }
 
-static int rsa_alt_decrypt_wrap( void *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 )
+static int rsa_alt_decrypt_wrap(void *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)
 {
     mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
 
     ((void) f_rng);
     ((void) p_rng);
 
-    if( ilen != rsa_alt->key_len_func( rsa_alt->key ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen != rsa_alt->key_len_func(rsa_alt->key)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    return( rsa_alt->decrypt_func( rsa_alt->key,
-                MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
+    return rsa_alt->decrypt_func(rsa_alt->key,
+                                 MBEDTLS_RSA_PRIVATE, olen, input, output, osize);
 }
 
 #if defined(MBEDTLS_RSA_C)
-static int rsa_alt_check_pair( const void *pub, const void *prv )
+static int rsa_alt_check_pair(const void *pub, const void *prv)
 {
     unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
     unsigned char hash[32];
     size_t sig_len = 0;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) )
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
-
-    memset( hash, 0x2a, sizeof( hash ) );
-
-    if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE,
-                                   hash, sizeof( hash ),
-                                   sig, &sig_len, NULL, NULL ) ) != 0 )
-    {
-        return( ret );
+    if (rsa_alt_get_bitlen(prv) != rsa_get_bitlen(pub)) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE,
-                         hash, sizeof( hash ), sig, sig_len ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    memset(hash, 0x2a, sizeof(hash));
+
+    if ((ret = rsa_alt_sign_wrap((void *) prv, MBEDTLS_MD_NONE,
+                                 hash, sizeof(hash),
+                                 sig, &sig_len, NULL, NULL)) != 0) {
+        return ret;
     }
 
-    return( 0 );
+    if (rsa_verify_wrap((void *) pub, MBEDTLS_MD_NONE,
+                        hash, sizeof(hash), sig, sig_len) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
+    }
+
+    return 0;
 }
 #endif /* MBEDTLS_RSA_C */
 
-static void *rsa_alt_alloc_wrap( void )
+static void *rsa_alt_alloc_wrap(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) );
+    void *ctx = mbedtls_calloc(1, sizeof(mbedtls_rsa_alt_context));
 
-    if( ctx != NULL )
-        memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) );
+    if (ctx != NULL) {
+        memset(ctx, 0, sizeof(mbedtls_rsa_alt_context));
+    }
 
-    return( ctx );
+    return ctx;
 }
 
-static void rsa_alt_free_wrap( void *ctx )
+static void rsa_alt_free_wrap(void *ctx)
 {
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) );
-    mbedtls_free( ctx );
+    mbedtls_platform_zeroize(ctx, sizeof(mbedtls_rsa_alt_context));
+    mbedtls_free(ctx);
 }
 
 const mbedtls_pk_info_t mbedtls_rsa_alt_info = {
@@ -862,42 +882,43 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 
-static void *pk_opaque_alloc_wrap( void )
+static void *pk_opaque_alloc_wrap(void)
 {
-    void *ctx = mbedtls_calloc( 1, sizeof( psa_key_id_t ) );
+    void *ctx = mbedtls_calloc(1, sizeof(psa_key_id_t));
 
     /* no _init() function to call, as calloc() already zeroized */
 
-    return( ctx );
+    return ctx;
 }
 
-static void pk_opaque_free_wrap( void *ctx )
+static void pk_opaque_free_wrap(void *ctx)
 {
-    mbedtls_platform_zeroize( ctx, sizeof( psa_key_id_t ) );
-    mbedtls_free( ctx );
+    mbedtls_platform_zeroize(ctx, sizeof(psa_key_id_t));
+    mbedtls_free(ctx);
 }
 
-static size_t pk_opaque_get_bitlen( const void *ctx )
+static size_t pk_opaque_get_bitlen(const void *ctx)
 {
     const psa_key_id_t *key = (const psa_key_id_t *) ctx;
     size_t bits;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 
-    if( PSA_SUCCESS != psa_get_key_attributes( *key, &attributes ) )
-        return( 0 );
+    if (PSA_SUCCESS != psa_get_key_attributes(*key, &attributes)) {
+        return 0;
+    }
 
-    bits = psa_get_key_bits( &attributes );
-    psa_reset_key_attributes( &attributes );
-    return( bits );
+    bits = psa_get_key_bits(&attributes);
+    psa_reset_key_attributes(&attributes);
+    return bits;
 }
 
-static int pk_opaque_can_do( mbedtls_pk_type_t type )
+static int pk_opaque_can_do(mbedtls_pk_type_t type)
 {
     /* For now opaque PSA keys can only wrap ECC keypairs,
      * as checked by setup_psa().
      * Also, ECKEY_DH does not really make sense with the current API. */
-    return( type == MBEDTLS_PK_ECKEY ||
-            type == MBEDTLS_PK_ECDSA );
+    return type == MBEDTLS_PK_ECKEY ||
+           type == MBEDTLS_PK_ECDSA;
 }
 
 #if defined(MBEDTLS_ECDSA_C)
@@ -911,48 +932,49 @@
  * start: start of the output buffer, and also of the mpi to write at the end
  * n_len: length of the mpi to read from start
  */
-static int asn1_write_mpibuf( unsigned char **p, unsigned char *start,
-                              size_t n_len )
+static int asn1_write_mpibuf(unsigned char **p, unsigned char *start,
+                             size_t n_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len = 0;
 
-    if( (size_t)( *p - start ) < n_len )
-        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
+    if ((size_t) (*p - start) < n_len) {
+        return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL;
+    }
 
     len = n_len;
     *p -= len;
-    memmove( *p, start, len );
+    memmove(*p, start, len);
 
     /* ASN.1 DER encoding requires minimal length, so skip leading 0s.
      * Neither r nor s should be 0, but as a failsafe measure, still detect
      * that rather than overflowing the buffer in case of a PSA error. */
-    while( len > 0 && **p == 0x00 )
-    {
+    while (len > 0 && **p == 0x00) {
         ++(*p);
         --len;
     }
 
     /* this is only reached if the signature was invalid */
-    if( len == 0 )
-        return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
+    if (len == 0) {
+        return MBEDTLS_ERR_PK_HW_ACCEL_FAILED;
+    }
 
     /* if the msb is 1, ASN.1 requires that we prepend a 0.
      * Neither r nor s can be 0, so we can assume len > 0 at all times. */
-    if( **p & 0x80 )
-    {
-        if( *p - start < 1 )
-            return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
+    if (**p & 0x80) {
+        if (*p - start < 1) {
+            return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL;
+        }
 
         *--(*p) = 0x00;
         len += 1;
     }
 
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
-                                                MBEDTLS_ASN1_INTEGER ) );
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(p, start, len));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(p, start,
+                                                     MBEDTLS_ASN1_INTEGER));
 
-    return( (int) len );
+    return (int) len;
 }
 
 /* Transcode signature from PSA format to ASN.1 sequence.
@@ -963,33 +985,34 @@
  * [in/out] sig_len: signature length pre- and post-transcoding
  * [int] buf_len: the available size the in/out buffer
  */
-static int pk_ecdsa_sig_asn1_from_psa( unsigned char *sig, size_t *sig_len,
-                                       size_t buf_len )
+static int pk_ecdsa_sig_asn1_from_psa(unsigned char *sig, size_t *sig_len,
+                                      size_t buf_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len = 0;
     const size_t rs_len = *sig_len / 2;
     unsigned char *p = sig + buf_len;
 
-    MBEDTLS_ASN1_CHK_ADD( len, asn1_write_mpibuf( &p, sig + rs_len, rs_len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, asn1_write_mpibuf( &p, sig, rs_len ) );
+    MBEDTLS_ASN1_CHK_ADD(len, asn1_write_mpibuf(&p, sig + rs_len, rs_len));
+    MBEDTLS_ASN1_CHK_ADD(len, asn1_write_mpibuf(&p, sig, rs_len));
 
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &p, sig, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &p, sig,
-                          MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&p, sig, len));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&p, sig,
+                                                     MBEDTLS_ASN1_CONSTRUCTED |
+                                                     MBEDTLS_ASN1_SEQUENCE));
 
-    memmove( sig, p, len );
+    memmove(sig, p, len);
     *sig_len = len;
 
-    return( 0 );
+    return 0;
 }
 
 #endif /* MBEDTLS_ECDSA_C */
 
-static int pk_opaque_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
-                   const unsigned char *hash, size_t hash_len,
-                   unsigned char *sig, size_t *sig_len,
-                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int pk_opaque_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+                               const unsigned char *hash, size_t hash_len,
+                               unsigned char *sig, size_t *sig_len,
+                               int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
 #if !defined(MBEDTLS_ECDSA_C)
     ((void) ctx);
@@ -1000,11 +1023,11 @@
     ((void) sig_len);
     ((void) f_rng);
     ((void) p_rng);
-    return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
+    return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
 #else /* !MBEDTLS_ECDSA_C */
     const psa_key_id_t *key = (const psa_key_id_t *) ctx;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-    psa_algorithm_t alg = PSA_ALG_ECDSA( mbedtls_psa_translate_md( md_alg ) );
+    psa_algorithm_t alg = PSA_ALG_ECDSA(mbedtls_psa_translate_md(md_alg));
     size_t buf_len;
     psa_status_t status;
 
@@ -1016,22 +1039,25 @@
      * that information. Assume that the buffer is large enough for a
      * maximal-length signature with that key (otherwise the application is
      * buggy anyway). */
-    status = psa_get_key_attributes( *key, &attributes );
-    if( status != PSA_SUCCESS )
-        return( mbedtls_psa_err_translate_pk( status ) );
-    buf_len = MBEDTLS_ECDSA_MAX_SIG_LEN( psa_get_key_bits( &attributes ) );
-    psa_reset_key_attributes( &attributes );
-    if( buf_len > MBEDTLS_PK_SIGNATURE_MAX_SIZE )
-        return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
+    status = psa_get_key_attributes(*key, &attributes);
+    if (status != PSA_SUCCESS) {
+        return mbedtls_psa_err_translate_pk(status);
+    }
+    buf_len = MBEDTLS_ECDSA_MAX_SIG_LEN(psa_get_key_bits(&attributes));
+    psa_reset_key_attributes(&attributes);
+    if (buf_len > MBEDTLS_PK_SIGNATURE_MAX_SIZE) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
 
     /* make the signature */
-    status = psa_sign_hash( *key, alg, hash, hash_len,
-                            sig, buf_len, sig_len );
-    if( status != PSA_SUCCESS )
-        return( mbedtls_psa_err_translate_pk( status ) );
+    status = psa_sign_hash(*key, alg, hash, hash_len,
+                           sig, buf_len, sig_len);
+    if (status != PSA_SUCCESS) {
+        return mbedtls_psa_err_translate_pk(status);
+    }
 
     /* transcode it to ASN.1 sequence */
-    return( pk_ecdsa_sig_asn1_from_psa( sig, sig_len, buf_len ) );
+    return pk_ecdsa_sig_asn1_from_psa(sig, sig_len, buf_len);
 #endif /* !MBEDTLS_ECDSA_C */
 }