diff --git a/library/ctr_drbg.c b/library/ctr_drbg.c
index f5c5e7b..13fa6d4 100644
--- a/library/ctr_drbg.c
+++ b/library/ctr_drbg.c
@@ -41,10 +41,10 @@
 /*
  * CTR_DRBG context initialization
  */
-void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
+void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx)
 {
-    memset( ctx, 0, sizeof( mbedtls_ctr_drbg_context ) );
-    mbedtls_aes_init( &ctx->aes_ctx );
+    memset(ctx, 0, sizeof(mbedtls_ctr_drbg_context));
+    mbedtls_aes_init(&ctx->aes_ctx);
     /* Indicate that the entropy nonce length is not set explicitly.
      * See mbedtls_ctr_drbg_set_nonce_len(). */
     ctx->reseed_counter = -1;
@@ -56,50 +56,55 @@
  *  This function resets CTR_DRBG context to the state immediately
  *  after initial call of mbedtls_ctr_drbg_init().
  */
-void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx )
+void mbedtls_ctr_drbg_free(mbedtls_ctr_drbg_context *ctx)
 {
-    if( ctx == NULL )
+    if (ctx == NULL) {
         return;
+    }
 
 #if defined(MBEDTLS_THREADING_C)
     /* The mutex is initialized iff f_entropy is set. */
-    if( ctx->f_entropy != NULL )
-        mbedtls_mutex_free( &ctx->mutex );
+    if (ctx->f_entropy != NULL) {
+        mbedtls_mutex_free(&ctx->mutex);
+    }
 #endif
-    mbedtls_aes_free( &ctx->aes_ctx );
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ctr_drbg_context ) );
+    mbedtls_aes_free(&ctx->aes_ctx);
+    mbedtls_platform_zeroize(ctx, sizeof(mbedtls_ctr_drbg_context));
     ctx->reseed_interval = MBEDTLS_CTR_DRBG_RESEED_INTERVAL;
     ctx->reseed_counter = -1;
 }
 
-void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx,
-                                                 int resistance )
+void mbedtls_ctr_drbg_set_prediction_resistance(mbedtls_ctr_drbg_context *ctx,
+                                                int resistance)
 {
     ctx->prediction_resistance = resistance;
 }
 
-void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx,
-                                       size_t len )
+void mbedtls_ctr_drbg_set_entropy_len(mbedtls_ctr_drbg_context *ctx,
+                                      size_t len)
 {
     ctx->entropy_len = len;
 }
 
-int mbedtls_ctr_drbg_set_nonce_len( mbedtls_ctr_drbg_context *ctx,
-                                    size_t len )
+int mbedtls_ctr_drbg_set_nonce_len(mbedtls_ctr_drbg_context *ctx,
+                                   size_t len)
 {
     /* If mbedtls_ctr_drbg_seed() has already been called, it's
      * too late. Return the error code that's closest to making sense. */
-    if( ctx->f_entropy != NULL )
-        return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+    if (ctx->f_entropy != NULL) {
+        return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
+    }
 
-    if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+    if (len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
 #if SIZE_MAX > INT_MAX
     /* This shouldn't be an issue because
      * MBEDTLS_CTR_DRBG_MAX_SEED_INPUT < INT_MAX in any sensible
      * configuration, but make sure anyway. */
-    if( len > INT_MAX )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+    if (len > INT_MAX) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
 #endif
 
     /* For backward compatibility with Mbed TLS <= 2.19, store the
@@ -107,17 +112,17 @@
      * used until after the initial seeding. */
     /* Due to the capping of len above, the value fits in an int. */
     ctx->reseed_counter = (int) len;
-    return( 0 );
+    return 0;
 }
 
-void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx,
-                                           int interval )
+void mbedtls_ctr_drbg_set_reseed_interval(mbedtls_ctr_drbg_context *ctx,
+                                          int interval)
 {
     ctx->reseed_interval = interval;
 }
 
-static int block_cipher_df( unsigned char *output,
-                            const unsigned char *data, size_t data_len )
+static int block_cipher_df(unsigned char *output,
+                           const unsigned char *data, size_t data_len)
 {
     unsigned char buf[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
                       MBEDTLS_CTR_DRBG_BLOCKSIZE + 16];
@@ -131,12 +136,13 @@
     int i, j;
     size_t buf_len, use_len;
 
-    if( data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+    if (data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
 
-    memset( buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
-            MBEDTLS_CTR_DRBG_BLOCKSIZE + 16 );
-    mbedtls_aes_init( &aes_ctx );
+    memset(buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
+           MBEDTLS_CTR_DRBG_BLOCKSIZE + 16);
+    mbedtls_aes_init(&aes_ctx);
 
     /*
      * Construct IV (16 bytes) and S in buffer
@@ -146,47 +152,44 @@
      *     (Total is padded to a multiple of 16-bytes with zeroes)
      */
     p = buf + MBEDTLS_CTR_DRBG_BLOCKSIZE;
-    MBEDTLS_PUT_UINT32_BE( data_len, p, 0);
+    MBEDTLS_PUT_UINT32_BE(data_len, p, 0);
     p += 4 + 3;
     *p++ = MBEDTLS_CTR_DRBG_SEEDLEN;
-    memcpy( p, data, data_len );
+    memcpy(p, data, data_len);
     p[data_len] = 0x80;
 
     buf_len = MBEDTLS_CTR_DRBG_BLOCKSIZE + 8 + data_len + 1;
 
-    for( i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++ )
+    for (i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++) {
         key[i] = i;
+    }
 
-    if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, key,
-                                        MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
-    {
+    if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, key,
+                                      MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
         goto exit;
     }
 
     /*
      * Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data
      */
-    for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
-    {
+    for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
         p = buf;
-        memset( chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+        memset(chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE);
         use_len = buf_len;
 
-        while( use_len > 0 )
-        {
-            mbedtls_xor( chain, chain, p, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+        while (use_len > 0) {
+            mbedtls_xor(chain, chain, p, MBEDTLS_CTR_DRBG_BLOCKSIZE);
             p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
-            use_len -= ( use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE ) ?
+            use_len -= (use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE) ?
                        MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len;
 
-            if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
-                                               chain, chain ) ) != 0 )
-            {
+            if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
+                                             chain, chain)) != 0) {
                 goto exit;
             }
         }
 
-        memcpy( tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+        memcpy(tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE);
 
         /*
          * Update IV
@@ -197,42 +200,38 @@
     /*
      * Do final encryption with reduced data
      */
-    if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, tmp,
-                                        MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
-    {
+    if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, tmp,
+                                      MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
         goto exit;
     }
     iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE;
     p = output;
 
-    for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
-    {
-        if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
-                                           iv, iv ) ) != 0 )
-        {
+    for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
+        if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
+                                         iv, iv)) != 0) {
             goto exit;
         }
-        memcpy( p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+        memcpy(p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE);
         p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
     }
 exit:
-    mbedtls_aes_free( &aes_ctx );
+    mbedtls_aes_free(&aes_ctx);
     /*
-    * tidy up the stack
-    */
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-    mbedtls_platform_zeroize( key, sizeof( key ) );
-    mbedtls_platform_zeroize( chain, sizeof( chain ) );
-    if( 0 != ret )
-    {
+     * tidy up the stack
+     */
+    mbedtls_platform_zeroize(buf, sizeof(buf));
+    mbedtls_platform_zeroize(tmp, sizeof(tmp));
+    mbedtls_platform_zeroize(key, sizeof(key));
+    mbedtls_platform_zeroize(chain, sizeof(chain));
+    if (0 != ret) {
         /*
-        * wipe partial seed from memory
-        */
-        mbedtls_platform_zeroize( output, MBEDTLS_CTR_DRBG_SEEDLEN );
+         * wipe partial seed from memory
+         */
+        mbedtls_platform_zeroize(output, MBEDTLS_CTR_DRBG_SEEDLEN);
     }
 
-    return( ret );
+    return ret;
 }
 
 /* CTR_DRBG_Update (SP 800-90A &sect;10.2.1.2)
@@ -243,54 +242,54 @@
  *   ctx->aes_ctx = Key
  *   ctx->counter = V
  */
-static int ctr_drbg_update_internal( mbedtls_ctr_drbg_context *ctx,
-                          const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN] )
+static int ctr_drbg_update_internal(mbedtls_ctr_drbg_context *ctx,
+                                    const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN])
 {
     unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
     unsigned char *p = tmp;
     int i, j;
     int ret = 0;
 
-    memset( tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
+    memset(tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
 
-    for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
-    {
+    for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
         /*
          * Increase counter
          */
-        for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
-            if( ++ctx->counter[i - 1] != 0 )
+        for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
+            if (++ctx->counter[i - 1] != 0) {
                 break;
+            }
+        }
 
         /*
          * Crypt counter block
          */
-        if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
-                                           ctx->counter, p ) ) != 0 )
-        {
+        if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
+                                         ctx->counter, p)) != 0) {
             goto exit;
         }
 
         p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
     }
 
-    for( i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++ )
+    for (i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++) {
         tmp[i] ^= data[i];
+    }
 
     /*
      * Update key and counter
      */
-    if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, tmp,
-                                        MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
-    {
+    if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, tmp,
+                                      MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
         goto exit;
     }
-    memcpy( ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
-            MBEDTLS_CTR_DRBG_BLOCKSIZE );
+    memcpy(ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
+           MBEDTLS_CTR_DRBG_BLOCKSIZE);
 
 exit:
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-    return( ret );
+    mbedtls_platform_zeroize(tmp, sizeof(tmp));
+    return ret;
 }
 
 /* CTR_DRBG_Instantiate with derivation function (SP 800-90A &sect;10.2.1.3.2)
@@ -305,24 +304,27 @@
  * and with outputs
  *   ctx = initial_working_state
  */
-int mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx,
-                                 const unsigned char *additional,
-                                 size_t add_len )
+int mbedtls_ctr_drbg_update(mbedtls_ctr_drbg_context *ctx,
+                            const unsigned char *additional,
+                            size_t add_len)
 {
     unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( add_len == 0 )
-        return( 0 );
+    if (add_len == 0) {
+        return 0;
+    }
 
-    if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
+    if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
         goto exit;
-    if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+    }
+    if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
         goto exit;
+    }
 
 exit:
-    mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
-    return( ret );
+    mbedtls_platform_zeroize(add_input, sizeof(add_input));
+    return ret;
 }
 
 /* CTR_DRBG_Reseed with derivation function (SP 800-90A &sect;10.2.1.4.2)
@@ -338,66 +340,67 @@
  * and with output
  *   ctx contains new_working_state
  */
-static int mbedtls_ctr_drbg_reseed_internal( mbedtls_ctr_drbg_context *ctx,
-                                             const unsigned char *additional,
-                                             size_t len,
-                                             size_t nonce_len )
+static int mbedtls_ctr_drbg_reseed_internal(mbedtls_ctr_drbg_context *ctx,
+                                            const unsigned char *additional,
+                                            size_t len,
+                                            size_t nonce_len)
 {
     unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT];
     size_t seedlen = 0;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
-    if( nonce_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
-    if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len - nonce_len )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+    if (ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
+    if (nonce_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
+    if (len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len - nonce_len) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
 
-    memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT );
+    memset(seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT);
 
     /* Gather entropy_len bytes of entropy to seed state. */
-    if( 0 != ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) )
-    {
-        return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+    if (0 != ctx->f_entropy(ctx->p_entropy, seed, ctx->entropy_len)) {
+        return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
     }
     seedlen += ctx->entropy_len;
 
     /* Gather entropy for a nonce if requested. */
-    if( nonce_len != 0 )
-    {
-        if( 0 != ctx->f_entropy( ctx->p_entropy, seed + seedlen, nonce_len ) )
-        {
-            return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+    if (nonce_len != 0) {
+        if (0 != ctx->f_entropy(ctx->p_entropy, seed + seedlen, nonce_len)) {
+            return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
         }
         seedlen += nonce_len;
     }
 
     /* Add additional data if provided. */
-    if( additional != NULL && len != 0 )
-    {
-        memcpy( seed + seedlen, additional, len );
+    if (additional != NULL && len != 0) {
+        memcpy(seed + seedlen, additional, len);
         seedlen += len;
     }
 
     /* Reduce to 384 bits. */
-    if( ( ret = block_cipher_df( seed, seed, seedlen ) ) != 0 )
+    if ((ret = block_cipher_df(seed, seed, seedlen)) != 0) {
         goto exit;
+    }
 
     /* Update state. */
-    if( ( ret = ctr_drbg_update_internal( ctx, seed ) ) != 0 )
+    if ((ret = ctr_drbg_update_internal(ctx, seed)) != 0) {
         goto exit;
+    }
     ctx->reseed_counter = 1;
 
 exit:
-    mbedtls_platform_zeroize( seed, sizeof( seed ) );
-    return( ret );
+    mbedtls_platform_zeroize(seed, sizeof(seed));
+    return ret;
 }
 
-int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx,
-                             const unsigned char *additional, size_t len )
+int mbedtls_ctr_drbg_reseed(mbedtls_ctr_drbg_context *ctx,
+                            const unsigned char *additional, size_t len)
 {
-    return( mbedtls_ctr_drbg_reseed_internal( ctx, additional, len, 0 ) );
+    return mbedtls_ctr_drbg_reseed_internal(ctx, additional, len, 0);
 }
 
 /* Return a "good" nonce length for CTR_DRBG. The chosen nonce length
@@ -405,12 +408,13 @@
  * size and entropy length. If there is enough entropy in the initial
  * call to the entropy function to serve as both the entropy input and
  * the nonce, don't make a second call to get a nonce. */
-static size_t good_nonce_len( size_t entropy_len )
+static size_t good_nonce_len(size_t entropy_len)
 {
-    if( entropy_len >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2 )
-        return( 0 );
-    else
-        return( ( entropy_len + 1 ) / 2 );
+    if (entropy_len >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2) {
+        return 0;
+    } else {
+        return (entropy_len + 1) / 2;
+    }
 }
 
 /* CTR_DRBG_Instantiate with derivation function (SP 800-90A &sect;10.2.1.3.2)
@@ -424,50 +428,49 @@
  * and with outputs
  *   ctx = initial_working_state
  */
-int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx,
-                           int (*f_entropy)(void *, unsigned char *, size_t),
-                           void *p_entropy,
-                           const unsigned char *custom,
-                           size_t len )
+int mbedtls_ctr_drbg_seed(mbedtls_ctr_drbg_context *ctx,
+                          int (*f_entropy)(void *, unsigned char *, size_t),
+                          void *p_entropy,
+                          const unsigned char *custom,
+                          size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
     size_t nonce_len;
 
-    memset( key, 0, MBEDTLS_CTR_DRBG_KEYSIZE );
+    memset(key, 0, MBEDTLS_CTR_DRBG_KEYSIZE);
 
     /* The mutex is initialized iff f_entropy is set. */
 #if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &ctx->mutex );
+    mbedtls_mutex_init(&ctx->mutex);
 #endif
 
     ctx->f_entropy = f_entropy;
     ctx->p_entropy = p_entropy;
 
-    if( ctx->entropy_len == 0 )
+    if (ctx->entropy_len == 0) {
         ctx->entropy_len = MBEDTLS_CTR_DRBG_ENTROPY_LEN;
+    }
     /* ctx->reseed_counter contains the desired amount of entropy to
      * grab for a nonce (see mbedtls_ctr_drbg_set_nonce_len()).
      * If it's -1, indicating that the entropy nonce length was not set
      * explicitly, use a sufficiently large nonce for security. */
-    nonce_len = ( ctx->reseed_counter >= 0 ?
-                  (size_t) ctx->reseed_counter :
-                  good_nonce_len( ctx->entropy_len ) );
+    nonce_len = (ctx->reseed_counter >= 0 ?
+                 (size_t) ctx->reseed_counter :
+                 good_nonce_len(ctx->entropy_len));
 
     /* Initialize with an empty key. */
-    if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, key,
-                                        MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
-    {
-        return( ret );
+    if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, key,
+                                      MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
+        return ret;
     }
 
     /* Do the initial seeding. */
-    if( ( ret = mbedtls_ctr_drbg_reseed_internal( ctx, custom, len,
-                                                  nonce_len ) ) != 0 )
-    {
-        return( ret );
+    if ((ret = mbedtls_ctr_drbg_reseed_internal(ctx, custom, len,
+                                                nonce_len)) != 0) {
+        return ret;
     }
-    return( 0 );
+    return 0;
 }
 
 /* CTR_DRBG_Generate with derivation function (SP 800-90A &sect;10.2.1.5.2)
@@ -489,9 +492,9 @@
  *   returned_bits = output[:output_len]
  *   ctx contains new_working_state
  */
-int mbedtls_ctr_drbg_random_with_add( void *p_rng,
-                              unsigned char *output, size_t output_len,
-                              const unsigned char *additional, size_t add_len )
+int mbedtls_ctr_drbg_random_with_add(void *p_rng,
+                                     unsigned char *output, size_t output_len,
+                                     const unsigned char *additional, size_t add_len)
 {
     int ret = 0;
     mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
@@ -501,165 +504,169 @@
     int i;
     size_t use_len;
 
-    if( output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST )
-        return( MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG );
+    if (output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST) {
+        return MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG;
+    }
 
-    if( add_len > MBEDTLS_CTR_DRBG_MAX_INPUT )
-        return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+    if (add_len > MBEDTLS_CTR_DRBG_MAX_INPUT) {
+        return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+    }
 
-    memset( add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
+    memset(add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
 
-    if( ctx->reseed_counter > ctx->reseed_interval ||
-        ctx->prediction_resistance )
-    {
-        if( ( ret = mbedtls_ctr_drbg_reseed( ctx, additional, add_len ) ) != 0 )
-        {
-            return( ret );
+    if (ctx->reseed_counter > ctx->reseed_interval ||
+        ctx->prediction_resistance) {
+        if ((ret = mbedtls_ctr_drbg_reseed(ctx, additional, add_len)) != 0) {
+            return ret;
         }
         add_len = 0;
     }
 
-    if( add_len > 0 )
-    {
-        if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
+    if (add_len > 0) {
+        if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
             goto exit;
-        if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+        }
+        if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
             goto exit;
+        }
     }
 
-    while( output_len > 0 )
-    {
+    while (output_len > 0) {
         /*
          * Increase counter
          */
-        for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
-            if( ++ctx->counter[i - 1] != 0 )
+        for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
+            if (++ctx->counter[i - 1] != 0) {
                 break;
+            }
+        }
 
         /*
          * Crypt counter block
          */
-        if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
-                                           ctx->counter, tmp ) ) != 0 )
-        {
+        if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
+                                         ctx->counter, tmp)) != 0) {
             goto exit;
         }
 
-        use_len = ( output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE )
+        use_len = (output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE)
             ? MBEDTLS_CTR_DRBG_BLOCKSIZE : output_len;
         /*
          * Copy random block to destination
          */
-        memcpy( p, tmp, use_len );
+        memcpy(p, tmp, use_len);
         p += use_len;
         output_len -= use_len;
     }
 
-    if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+    if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
         goto exit;
+    }
 
     ctx->reseed_counter++;
 
 exit:
-    mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-    return( ret );
+    mbedtls_platform_zeroize(add_input, sizeof(add_input));
+    mbedtls_platform_zeroize(tmp, sizeof(tmp));
+    return ret;
 }
 
-int mbedtls_ctr_drbg_random( void *p_rng, unsigned char *output,
-                             size_t output_len )
+int mbedtls_ctr_drbg_random(void *p_rng, unsigned char *output,
+                            size_t output_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
 
 #if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_mutex_lock(&ctx->mutex)) != 0) {
+        return ret;
+    }
 #endif
 
-    ret = mbedtls_ctr_drbg_random_with_add( ctx, output, output_len, NULL, 0 );
+    ret = mbedtls_ctr_drbg_random_with_add(ctx, output, output_len, NULL, 0);
 
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+    if (mbedtls_mutex_unlock(&ctx->mutex) != 0) {
+        return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
 #endif
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_FS_IO)
-int mbedtls_ctr_drbg_write_seed_file( mbedtls_ctr_drbg_context *ctx,
-                                      const char *path )
+int mbedtls_ctr_drbg_write_seed_file(mbedtls_ctr_drbg_context *ctx,
+                                     const char *path)
 {
     int ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
     FILE *f;
-    unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
+    unsigned char buf[MBEDTLS_CTR_DRBG_MAX_INPUT];
 
-    if( ( f = fopen( path, "wb" ) ) == NULL )
-        return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
+    if ((f = fopen(path, "wb")) == NULL) {
+        return MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+    }
 
     /* Ensure no stdio buffering of secrets, as such buffers cannot be wiped. */
-    mbedtls_setbuf( f, NULL );
+    mbedtls_setbuf(f, NULL);
 
-    if( ( ret = mbedtls_ctr_drbg_random( ctx, buf,
-                                         MBEDTLS_CTR_DRBG_MAX_INPUT ) ) != 0 )
+    if ((ret = mbedtls_ctr_drbg_random(ctx, buf,
+                                       MBEDTLS_CTR_DRBG_MAX_INPUT)) != 0) {
         goto exit;
-
-    if( fwrite( buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f ) !=
-        MBEDTLS_CTR_DRBG_MAX_INPUT )
-    {
-        ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
     }
-    else
-    {
+
+    if (fwrite(buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f) !=
+        MBEDTLS_CTR_DRBG_MAX_INPUT) {
+        ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+    } else {
         ret = 0;
     }
 
 exit:
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
+    mbedtls_platform_zeroize(buf, sizeof(buf));
 
-    fclose( f );
-    return( ret );
+    fclose(f);
+    return ret;
 }
 
-int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx,
-                                       const char *path )
+int mbedtls_ctr_drbg_update_seed_file(mbedtls_ctr_drbg_context *ctx,
+                                      const char *path)
 {
     int ret = 0;
     FILE *f = NULL;
     size_t n;
-    unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
+    unsigned char buf[MBEDTLS_CTR_DRBG_MAX_INPUT];
     unsigned char c;
 
-    if( ( f = fopen( path, "rb" ) ) == NULL )
-        return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
+    if ((f = fopen(path, "rb")) == NULL) {
+        return MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+    }
 
     /* Ensure no stdio buffering of secrets, as such buffers cannot be wiped. */
-    mbedtls_setbuf( f, NULL );
+    mbedtls_setbuf(f, NULL);
 
-    n = fread( buf, 1, sizeof( buf ), f );
-    if( fread( &c, 1, 1, f ) != 0 )
-    {
+    n = fread(buf, 1, sizeof(buf), f);
+    if (fread(&c, 1, 1, f) != 0) {
         ret = MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
         goto exit;
     }
-    if( n == 0 || ferror( f ) )
-    {
+    if (n == 0 || ferror(f)) {
         ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
         goto exit;
     }
-    fclose( f );
+    fclose(f);
     f = NULL;
 
-    ret = mbedtls_ctr_drbg_update( ctx, buf, n );
+    ret = mbedtls_ctr_drbg_update(ctx, buf, n);
 
 exit:
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-    if( f != NULL )
-        fclose( f );
-    if( ret != 0 )
-        return( ret );
-    return( mbedtls_ctr_drbg_write_seed_file( ctx, path ) );
+    mbedtls_platform_zeroize(buf, sizeof(buf));
+    if (f != NULL) {
+        fclose(f);
+    }
+    if (ret != 0) {
+        return ret;
+    }
+    return mbedtls_ctr_drbg_write_seed_file(ctx, path);
 }
 #endif /* MBEDTLS_FS_IO */
 
@@ -690,192 +697,197 @@
 
 #if defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY)
 static const unsigned char entropy_source_pr[] =
-    { 0x04, 0xd9, 0x49, 0xa6, 0xdc, 0xe8, 0x6e, 0xbb,
-      0xf1, 0x08, 0x77, 0x2b, 0x9e, 0x08, 0xca, 0x92,
-      0x65, 0x16, 0xda, 0x99, 0xa2, 0x59, 0xf3, 0xe8,
-      0x38, 0x7e, 0x3f, 0x6b, 0x51, 0x70, 0x7b, 0x20,
-      0xec, 0x53, 0xd0, 0x66, 0xc3, 0x0f, 0xe3, 0xb0,
-      0xe0, 0x86, 0xa6, 0xaa, 0x5f, 0x72, 0x2f, 0xad,
-      0xf7, 0xef, 0x06, 0xb8, 0xd6, 0x9c, 0x9d, 0xe8 };
+{ 0x04, 0xd9, 0x49, 0xa6, 0xdc, 0xe8, 0x6e, 0xbb,
+  0xf1, 0x08, 0x77, 0x2b, 0x9e, 0x08, 0xca, 0x92,
+  0x65, 0x16, 0xda, 0x99, 0xa2, 0x59, 0xf3, 0xe8,
+  0x38, 0x7e, 0x3f, 0x6b, 0x51, 0x70, 0x7b, 0x20,
+  0xec, 0x53, 0xd0, 0x66, 0xc3, 0x0f, 0xe3, 0xb0,
+  0xe0, 0x86, 0xa6, 0xaa, 0x5f, 0x72, 0x2f, 0xad,
+  0xf7, 0xef, 0x06, 0xb8, 0xd6, 0x9c, 0x9d, 0xe8 };
 
 static const unsigned char entropy_source_nopr[] =
-    { 0x07, 0x0d, 0x59, 0x63, 0x98, 0x73, 0xa5, 0x45,
-      0x27, 0x38, 0x22, 0x7b, 0x76, 0x85, 0xd1, 0xa9,
-      0x74, 0x18, 0x1f, 0x3c, 0x22, 0xf6, 0x49, 0x20,
-      0x4a, 0x47, 0xc2, 0xf3, 0x85, 0x16, 0xb4, 0x6f,
-      0x00, 0x2e, 0x71, 0xda, 0xed, 0x16, 0x9b, 0x5c };
+{ 0x07, 0x0d, 0x59, 0x63, 0x98, 0x73, 0xa5, 0x45,
+  0x27, 0x38, 0x22, 0x7b, 0x76, 0x85, 0xd1, 0xa9,
+  0x74, 0x18, 0x1f, 0x3c, 0x22, 0xf6, 0x49, 0x20,
+  0x4a, 0x47, 0xc2, 0xf3, 0x85, 0x16, 0xb4, 0x6f,
+  0x00, 0x2e, 0x71, 0xda, 0xed, 0x16, 0x9b, 0x5c };
 
 static const unsigned char pers_pr[] =
-    { 0xbf, 0xa4, 0x9a, 0x8f, 0x7b, 0xd8, 0xb1, 0x7a,
-      0x9d, 0xfa, 0x45, 0xed, 0x21, 0x52, 0xb3, 0xad };
+{ 0xbf, 0xa4, 0x9a, 0x8f, 0x7b, 0xd8, 0xb1, 0x7a,
+  0x9d, 0xfa, 0x45, 0xed, 0x21, 0x52, 0xb3, 0xad };
 
 static const unsigned char pers_nopr[] =
-    { 0x4e, 0x61, 0x79, 0xd4, 0xc2, 0x72, 0xa1, 0x4c,
-      0xf1, 0x3d, 0xf6, 0x5e, 0xa3, 0xa6, 0xe5, 0x0f };
+{ 0x4e, 0x61, 0x79, 0xd4, 0xc2, 0x72, 0xa1, 0x4c,
+  0xf1, 0x3d, 0xf6, 0x5e, 0xa3, 0xa6, 0xe5, 0x0f };
 
 static const unsigned char result_pr[] =
-    { 0xc9, 0x0a, 0xaf, 0x85, 0x89, 0x71, 0x44, 0x66,
-      0x4f, 0x25, 0x0b, 0x2b, 0xde, 0xd8, 0xfa, 0xff,
-      0x52, 0x5a, 0x1b, 0x32, 0x5e, 0x41, 0x7a, 0x10,
-      0x1f, 0xef, 0x1e, 0x62, 0x23, 0xe9, 0x20, 0x30,
-      0xc9, 0x0d, 0xad, 0x69, 0xb4, 0x9c, 0x5b, 0xf4,
-      0x87, 0x42, 0xd5, 0xae, 0x5e, 0x5e, 0x43, 0xcc,
-      0xd9, 0xfd, 0x0b, 0x93, 0x4a, 0xe3, 0xd4, 0x06,
-      0x37, 0x36, 0x0f, 0x3f, 0x72, 0x82, 0x0c, 0xcf };
+{ 0xc9, 0x0a, 0xaf, 0x85, 0x89, 0x71, 0x44, 0x66,
+  0x4f, 0x25, 0x0b, 0x2b, 0xde, 0xd8, 0xfa, 0xff,
+  0x52, 0x5a, 0x1b, 0x32, 0x5e, 0x41, 0x7a, 0x10,
+  0x1f, 0xef, 0x1e, 0x62, 0x23, 0xe9, 0x20, 0x30,
+  0xc9, 0x0d, 0xad, 0x69, 0xb4, 0x9c, 0x5b, 0xf4,
+  0x87, 0x42, 0xd5, 0xae, 0x5e, 0x5e, 0x43, 0xcc,
+  0xd9, 0xfd, 0x0b, 0x93, 0x4a, 0xe3, 0xd4, 0x06,
+  0x37, 0x36, 0x0f, 0x3f, 0x72, 0x82, 0x0c, 0xcf };
 
 static const unsigned char result_nopr[] =
-    { 0x31, 0xc9, 0x91, 0x09, 0xf8, 0xc5, 0x10, 0x13,
-      0x3c, 0xd3, 0x96, 0xf9, 0xbc, 0x2c, 0x12, 0xc0,
-      0x7c, 0xc1, 0x61, 0x5f, 0xa3, 0x09, 0x99, 0xaf,
-      0xd7, 0xf2, 0x36, 0xfd, 0x40, 0x1a, 0x8b, 0xf2,
-      0x33, 0x38, 0xee, 0x1d, 0x03, 0x5f, 0x83, 0xb7,
-      0xa2, 0x53, 0xdc, 0xee, 0x18, 0xfc, 0xa7, 0xf2,
-      0xee, 0x96, 0xc6, 0xc2, 0xcd, 0x0c, 0xff, 0x02,
-      0x76, 0x70, 0x69, 0xaa, 0x69, 0xd1, 0x3b, 0xe8 };
+{ 0x31, 0xc9, 0x91, 0x09, 0xf8, 0xc5, 0x10, 0x13,
+  0x3c, 0xd3, 0x96, 0xf9, 0xbc, 0x2c, 0x12, 0xc0,
+  0x7c, 0xc1, 0x61, 0x5f, 0xa3, 0x09, 0x99, 0xaf,
+  0xd7, 0xf2, 0x36, 0xfd, 0x40, 0x1a, 0x8b, 0xf2,
+  0x33, 0x38, 0xee, 0x1d, 0x03, 0x5f, 0x83, 0xb7,
+  0xa2, 0x53, 0xdc, 0xee, 0x18, 0xfc, 0xa7, 0xf2,
+  0xee, 0x96, 0xc6, 0xc2, 0xcd, 0x0c, 0xff, 0x02,
+  0x76, 0x70, 0x69, 0xaa, 0x69, 0xd1, 0x3b, 0xe8 };
 #else /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
 
 static const unsigned char entropy_source_pr[] =
-    { 0xca, 0x58, 0xfd, 0xf2, 0xb9, 0x77, 0xcb, 0x49,
-      0xd4, 0xe0, 0x5b, 0xe2, 0x39, 0x50, 0xd9, 0x8a,
-      0x6a, 0xb3, 0xc5, 0x2f, 0xdf, 0x74, 0xd5, 0x85,
-      0x8f, 0xd1, 0xba, 0x64, 0x54, 0x7b, 0xdb, 0x1e,
-      0xc5, 0xea, 0x24, 0xc0, 0xfa, 0x0c, 0x90, 0x15,
-      0x09, 0x20, 0x92, 0x42, 0x32, 0x36, 0x45, 0x45,
-      0x7d, 0x20, 0x76, 0x6b, 0xcf, 0xa2, 0x15, 0xc8,
-      0x2f, 0x9f, 0xbc, 0x88, 0x3f, 0x80, 0xd1, 0x2c,
-      0xb7, 0x16, 0xd1, 0x80, 0x9e, 0xe1, 0xc9, 0xb3,
-      0x88, 0x1b, 0x21, 0x45, 0xef, 0xa1, 0x7f, 0xce,
-      0xc8, 0x92, 0x35, 0x55, 0x2a, 0xd9, 0x1d, 0x8e,
-      0x12, 0x38, 0xac, 0x01, 0x4e, 0x38, 0x18, 0x76,
-      0x9c, 0xf2, 0xb6, 0xd4, 0x13, 0xb6, 0x2c, 0x77,
-      0xc0, 0xe7, 0xe6, 0x0c, 0x47, 0x44, 0x95, 0xbe };
+{ 0xca, 0x58, 0xfd, 0xf2, 0xb9, 0x77, 0xcb, 0x49,
+  0xd4, 0xe0, 0x5b, 0xe2, 0x39, 0x50, 0xd9, 0x8a,
+  0x6a, 0xb3, 0xc5, 0x2f, 0xdf, 0x74, 0xd5, 0x85,
+  0x8f, 0xd1, 0xba, 0x64, 0x54, 0x7b, 0xdb, 0x1e,
+  0xc5, 0xea, 0x24, 0xc0, 0xfa, 0x0c, 0x90, 0x15,
+  0x09, 0x20, 0x92, 0x42, 0x32, 0x36, 0x45, 0x45,
+  0x7d, 0x20, 0x76, 0x6b, 0xcf, 0xa2, 0x15, 0xc8,
+  0x2f, 0x9f, 0xbc, 0x88, 0x3f, 0x80, 0xd1, 0x2c,
+  0xb7, 0x16, 0xd1, 0x80, 0x9e, 0xe1, 0xc9, 0xb3,
+  0x88, 0x1b, 0x21, 0x45, 0xef, 0xa1, 0x7f, 0xce,
+  0xc8, 0x92, 0x35, 0x55, 0x2a, 0xd9, 0x1d, 0x8e,
+  0x12, 0x38, 0xac, 0x01, 0x4e, 0x38, 0x18, 0x76,
+  0x9c, 0xf2, 0xb6, 0xd4, 0x13, 0xb6, 0x2c, 0x77,
+  0xc0, 0xe7, 0xe6, 0x0c, 0x47, 0x44, 0x95, 0xbe };
 
 static const unsigned char entropy_source_nopr[] =
-    { 0x4c, 0xfb, 0x21, 0x86, 0x73, 0x34, 0x6d, 0x9d,
-      0x50, 0xc9, 0x22, 0xe4, 0x9b, 0x0d, 0xfc, 0xd0,
-      0x90, 0xad, 0xf0, 0x4f, 0x5c, 0x3b, 0xa4, 0x73,
-      0x27, 0xdf, 0xcd, 0x6f, 0xa6, 0x3a, 0x78, 0x5c,
-      0x01, 0x69, 0x62, 0xa7, 0xfd, 0x27, 0x87, 0xa2,
-      0x4b, 0xf6, 0xbe, 0x47, 0xef, 0x37, 0x83, 0xf1,
-      0xb7, 0xec, 0x46, 0x07, 0x23, 0x63, 0x83, 0x4a,
-      0x1b, 0x01, 0x33, 0xf2, 0xc2, 0x38, 0x91, 0xdb,
-      0x4f, 0x11, 0xa6, 0x86, 0x51, 0xf2, 0x3e, 0x3a,
-      0x8b, 0x1f, 0xdc, 0x03, 0xb1, 0x92, 0xc7, 0xe7 };
+{ 0x4c, 0xfb, 0x21, 0x86, 0x73, 0x34, 0x6d, 0x9d,
+  0x50, 0xc9, 0x22, 0xe4, 0x9b, 0x0d, 0xfc, 0xd0,
+  0x90, 0xad, 0xf0, 0x4f, 0x5c, 0x3b, 0xa4, 0x73,
+  0x27, 0xdf, 0xcd, 0x6f, 0xa6, 0x3a, 0x78, 0x5c,
+  0x01, 0x69, 0x62, 0xa7, 0xfd, 0x27, 0x87, 0xa2,
+  0x4b, 0xf6, 0xbe, 0x47, 0xef, 0x37, 0x83, 0xf1,
+  0xb7, 0xec, 0x46, 0x07, 0x23, 0x63, 0x83, 0x4a,
+  0x1b, 0x01, 0x33, 0xf2, 0xc2, 0x38, 0x91, 0xdb,
+  0x4f, 0x11, 0xa6, 0x86, 0x51, 0xf2, 0x3e, 0x3a,
+  0x8b, 0x1f, 0xdc, 0x03, 0xb1, 0x92, 0xc7, 0xe7 };
 
 static const unsigned char pers_pr[] =
-    { 0x5a, 0x70, 0x95, 0xe9, 0x81, 0x40, 0x52, 0x33,
-      0x91, 0x53, 0x7e, 0x75, 0xd6, 0x19, 0x9d, 0x1e,
-      0xad, 0x0d, 0xc6, 0xa7, 0xde, 0x6c, 0x1f, 0xe0,
-      0xea, 0x18, 0x33, 0xa8, 0x7e, 0x06, 0x20, 0xe9 };
+{ 0x5a, 0x70, 0x95, 0xe9, 0x81, 0x40, 0x52, 0x33,
+  0x91, 0x53, 0x7e, 0x75, 0xd6, 0x19, 0x9d, 0x1e,
+  0xad, 0x0d, 0xc6, 0xa7, 0xde, 0x6c, 0x1f, 0xe0,
+  0xea, 0x18, 0x33, 0xa8, 0x7e, 0x06, 0x20, 0xe9 };
 
 static const unsigned char pers_nopr[] =
-    { 0x88, 0xee, 0xb8, 0xe0, 0xe8, 0x3b, 0xf3, 0x29,
-      0x4b, 0xda, 0xcd, 0x60, 0x99, 0xeb, 0xe4, 0xbf,
-      0x55, 0xec, 0xd9, 0x11, 0x3f, 0x71, 0xe5, 0xeb,
-      0xcb, 0x45, 0x75, 0xf3, 0xd6, 0xa6, 0x8a, 0x6b };
+{ 0x88, 0xee, 0xb8, 0xe0, 0xe8, 0x3b, 0xf3, 0x29,
+  0x4b, 0xda, 0xcd, 0x60, 0x99, 0xeb, 0xe4, 0xbf,
+  0x55, 0xec, 0xd9, 0x11, 0x3f, 0x71, 0xe5, 0xeb,
+  0xcb, 0x45, 0x75, 0xf3, 0xd6, 0xa6, 0x8a, 0x6b };
 
 static const unsigned char result_pr[] =
-    { 0xce, 0x2f, 0xdb, 0xb6, 0xd9, 0xb7, 0x39, 0x85,
-      0x04, 0xc5, 0xc0, 0x42, 0xc2, 0x31, 0xc6, 0x1d,
-      0x9b, 0x5a, 0x59, 0xf8, 0x7e, 0x0d, 0xcc, 0x62,
-      0x7b, 0x65, 0x11, 0x55, 0x10, 0xeb, 0x9e, 0x3d,
-      0xa4, 0xfb, 0x1c, 0x6a, 0x18, 0xc0, 0x74, 0xdb,
-      0xdd, 0xe7, 0x02, 0x23, 0x63, 0x21, 0xd0, 0x39,
-      0xf9, 0xa7, 0xc4, 0x52, 0x84, 0x3b, 0x49, 0x40,
-      0x72, 0x2b, 0xb0, 0x6c, 0x9c, 0xdb, 0xc3, 0x43 };
+{ 0xce, 0x2f, 0xdb, 0xb6, 0xd9, 0xb7, 0x39, 0x85,
+  0x04, 0xc5, 0xc0, 0x42, 0xc2, 0x31, 0xc6, 0x1d,
+  0x9b, 0x5a, 0x59, 0xf8, 0x7e, 0x0d, 0xcc, 0x62,
+  0x7b, 0x65, 0x11, 0x55, 0x10, 0xeb, 0x9e, 0x3d,
+  0xa4, 0xfb, 0x1c, 0x6a, 0x18, 0xc0, 0x74, 0xdb,
+  0xdd, 0xe7, 0x02, 0x23, 0x63, 0x21, 0xd0, 0x39,
+  0xf9, 0xa7, 0xc4, 0x52, 0x84, 0x3b, 0x49, 0x40,
+  0x72, 0x2b, 0xb0, 0x6c, 0x9c, 0xdb, 0xc3, 0x43 };
 
 static const unsigned char result_nopr[] =
-    { 0xa5, 0x51, 0x80, 0xa1, 0x90, 0xbe, 0xf3, 0xad,
-      0xaf, 0x28, 0xf6, 0xb7, 0x95, 0xe9, 0xf1, 0xf3,
-      0xd6, 0xdf, 0xa1, 0xb2, 0x7d, 0xd0, 0x46, 0x7b,
-      0x0c, 0x75, 0xf5, 0xfa, 0x93, 0x1e, 0x97, 0x14,
-      0x75, 0xb2, 0x7c, 0xae, 0x03, 0xa2, 0x96, 0x54,
-      0xe2, 0xf4, 0x09, 0x66, 0xea, 0x33, 0x64, 0x30,
-      0x40, 0xd1, 0x40, 0x0f, 0xe6, 0x77, 0x87, 0x3a,
-      0xf8, 0x09, 0x7c, 0x1f, 0xe9, 0xf0, 0x02, 0x98 };
+{ 0xa5, 0x51, 0x80, 0xa1, 0x90, 0xbe, 0xf3, 0xad,
+  0xaf, 0x28, 0xf6, 0xb7, 0x95, 0xe9, 0xf1, 0xf3,
+  0xd6, 0xdf, 0xa1, 0xb2, 0x7d, 0xd0, 0x46, 0x7b,
+  0x0c, 0x75, 0xf5, 0xfa, 0x93, 0x1e, 0x97, 0x14,
+  0x75, 0xb2, 0x7c, 0xae, 0x03, 0xa2, 0x96, 0x54,
+  0xe2, 0xf4, 0x09, 0x66, 0xea, 0x33, 0x64, 0x30,
+  0x40, 0xd1, 0x40, 0x0f, 0xe6, 0x77, 0x87, 0x3a,
+  0xf8, 0x09, 0x7c, 0x1f, 0xe9, 0xf0, 0x02, 0x98 };
 #endif /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
 
 static size_t test_offset;
-static int ctr_drbg_self_test_entropy( void *data, unsigned char *buf,
-                                       size_t len )
+static int ctr_drbg_self_test_entropy(void *data, unsigned char *buf,
+                                      size_t len)
 {
     const unsigned char *p = data;
-    memcpy( buf, p + test_offset, len );
+    memcpy(buf, p + test_offset, len);
     test_offset += len;
-    return( 0 );
+    return 0;
 }
 
-#define CHK( c )    if( (c) != 0 )                          \
-                    {                                       \
-                        if( verbose != 0 )                  \
-                            mbedtls_printf( "failed\n" );  \
-                        return( 1 );                        \
-                    }
+#define CHK(c)    if ((c) != 0)                          \
+    {                                       \
+        if (verbose != 0)                  \
+        mbedtls_printf("failed\n");  \
+        return 1;                        \
+    }
 
 #define SELF_TEST_OUTPUT_DISCARD_LENGTH 64
 
 /*
  * Checkup routine
  */
-int mbedtls_ctr_drbg_self_test( int verbose )
+int mbedtls_ctr_drbg_self_test(int verbose)
 {
     mbedtls_ctr_drbg_context ctx;
-    unsigned char buf[ sizeof( result_pr ) ];
+    unsigned char buf[sizeof(result_pr)];
 
-    mbedtls_ctr_drbg_init( &ctx );
+    mbedtls_ctr_drbg_init(&ctx);
 
     /*
      * Based on a NIST CTR_DRBG test vector (PR = True)
      */
-    if( verbose != 0 )
-        mbedtls_printf( "  CTR_DRBG (PR = TRUE) : " );
+    if (verbose != 0) {
+        mbedtls_printf("  CTR_DRBG (PR = TRUE) : ");
+    }
 
     test_offset = 0;
-    mbedtls_ctr_drbg_set_entropy_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE );
-    mbedtls_ctr_drbg_set_nonce_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2 );
-    CHK( mbedtls_ctr_drbg_seed( &ctx,
-                                ctr_drbg_self_test_entropy,
-                                (void *) entropy_source_pr,
-                                pers_pr, MBEDTLS_CTR_DRBG_KEYSIZE ) );
-    mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON );
-    CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) );
-    CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_pr ) ) );
-    CHK( memcmp( buf, result_pr, sizeof( result_pr ) ) );
+    mbedtls_ctr_drbg_set_entropy_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
+    mbedtls_ctr_drbg_set_nonce_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2);
+    CHK(mbedtls_ctr_drbg_seed(&ctx,
+                              ctr_drbg_self_test_entropy,
+                              (void *) entropy_source_pr,
+                              pers_pr, MBEDTLS_CTR_DRBG_KEYSIZE));
+    mbedtls_ctr_drbg_set_prediction_resistance(&ctx, MBEDTLS_CTR_DRBG_PR_ON);
+    CHK(mbedtls_ctr_drbg_random(&ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH));
+    CHK(mbedtls_ctr_drbg_random(&ctx, buf, sizeof(result_pr)));
+    CHK(memcmp(buf, result_pr, sizeof(result_pr)));
 
-    mbedtls_ctr_drbg_free( &ctx );
+    mbedtls_ctr_drbg_free(&ctx);
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n");
+    }
 
     /*
      * Based on a NIST CTR_DRBG test vector (PR = FALSE)
      */
-    if( verbose != 0 )
-        mbedtls_printf( "  CTR_DRBG (PR = FALSE): " );
+    if (verbose != 0) {
+        mbedtls_printf("  CTR_DRBG (PR = FALSE): ");
+    }
 
-    mbedtls_ctr_drbg_init( &ctx );
+    mbedtls_ctr_drbg_init(&ctx);
 
     test_offset = 0;
-    mbedtls_ctr_drbg_set_entropy_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
-    mbedtls_ctr_drbg_set_nonce_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2 );
-    CHK( mbedtls_ctr_drbg_seed( &ctx,
-                                ctr_drbg_self_test_entropy,
-                                (void *) entropy_source_nopr,
-                                pers_nopr, MBEDTLS_CTR_DRBG_KEYSIZE ) );
-    CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) );
-    CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) );
-    CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_nopr ) ) );
-    CHK( memcmp( buf, result_nopr, sizeof( result_nopr ) ) );
+    mbedtls_ctr_drbg_set_entropy_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
+    mbedtls_ctr_drbg_set_nonce_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2);
+    CHK(mbedtls_ctr_drbg_seed(&ctx,
+                              ctr_drbg_self_test_entropy,
+                              (void *) entropy_source_nopr,
+                              pers_nopr, MBEDTLS_CTR_DRBG_KEYSIZE));
+    CHK(mbedtls_ctr_drbg_reseed(&ctx, NULL, 0));
+    CHK(mbedtls_ctr_drbg_random(&ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH));
+    CHK(mbedtls_ctr_drbg_random(&ctx, buf, sizeof(result_nopr)));
+    CHK(memcmp(buf, result_nopr, sizeof(result_nopr)));
 
-    mbedtls_ctr_drbg_free( &ctx );
+    mbedtls_ctr_drbg_free(&ctx);
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n");
+    }
 
-    if( verbose != 0 )
-            mbedtls_printf( "\n" );
+    if (verbose != 0) {
+        mbedtls_printf("\n");
+    }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SELF_TEST */