diff --git a/library/hmac_drbg.c b/library/hmac_drbg.c
index 159d72e..48d5b48 100644
--- a/library/hmac_drbg.c
+++ b/library/hmac_drbg.c
@@ -26,78 +26,78 @@
  *  References below are based on rev. 1 (January 2012).
  */
 
-#if !defined(POLARSSL_CONFIG_FILE)
+#if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/config.h"
 #else
-#include POLARSSL_CONFIG_FILE
+#include MBEDTLS_CONFIG_FILE
 #endif
 
-#if defined(POLARSSL_HMAC_DRBG_C)
+#if defined(MBEDTLS_HMAC_DRBG_C)
 
 #include "mbedtls/hmac_drbg.h"
 
 #include <string.h>
 
-#if defined(POLARSSL_FS_IO)
+#if defined(MBEDTLS_FS_IO)
 #include <stdio.h>
 #endif
 
-#if defined(POLARSSL_SELF_TEST)
-#if defined(POLARSSL_PLATFORM_C)
+#if defined(MBEDTLS_SELF_TEST)
+#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
 #else
 #include <stdio.h>
-#define polarssl_printf printf
-#endif /* POLARSSL_SELF_TEST */
-#endif /* POLARSSL_PLATFORM_C */
+#define mbedtls_printf printf
+#endif /* MBEDTLS_SELF_TEST */
+#endif /* MBEDTLS_PLATFORM_C */
 
 /* Implementation that should never be optimized out by the compiler */
-static void polarssl_zeroize( void *v, size_t n ) {
+static void mbedtls_zeroize( void *v, size_t n ) {
     volatile unsigned char *p = v; while( n-- ) *p++ = 0;
 }
 
 /*
  * HMAC_DRBG update, using optional additional data (10.1.2.2)
  */
-void hmac_drbg_update( hmac_drbg_context *ctx,
+void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx,
                        const unsigned char *additional, size_t add_len )
 {
-    size_t md_len = md_get_size( ctx->md_ctx.md_info );
+    size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
     unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1;
     unsigned char sep[1];
-    unsigned char K[POLARSSL_MD_MAX_SIZE];
+    unsigned char K[MBEDTLS_MD_MAX_SIZE];
 
     for( sep[0] = 0; sep[0] < rounds; sep[0]++ )
     {
         /* Step 1 or 4 */
-        md_hmac_reset( &ctx->md_ctx );
-        md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
-        md_hmac_update( &ctx->md_ctx, sep, 1 );
+        mbedtls_md_hmac_reset( &ctx->md_ctx );
+        mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
+        mbedtls_md_hmac_update( &ctx->md_ctx, sep, 1 );
         if( rounds == 2 )
-            md_hmac_update( &ctx->md_ctx, additional, add_len );
-        md_hmac_finish( &ctx->md_ctx, K );
+            mbedtls_md_hmac_update( &ctx->md_ctx, additional, add_len );
+        mbedtls_md_hmac_finish( &ctx->md_ctx, K );
 
         /* Step 2 or 5 */
-        md_hmac_starts( &ctx->md_ctx, K, md_len );
-        md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
-        md_hmac_finish( &ctx->md_ctx, ctx->V );
+        mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len );
+        mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
+        mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V );
     }
 }
 
 /*
  * Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA)
  */
-int hmac_drbg_init_buf( hmac_drbg_context *ctx,
-                        const md_info_t * md_info,
+int mbedtls_hmac_drbg_init_buf( mbedtls_hmac_drbg_context *ctx,
+                        const mbedtls_md_info_t * md_info,
                         const unsigned char *data, size_t data_len )
 {
     int ret;
 
-    memset( ctx, 0, sizeof( hmac_drbg_context ) );
+    memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) );
 
-    md_init( &ctx->md_ctx );
+    mbedtls_md_init( &ctx->md_ctx );
 
-    if( ( ret = md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
+    if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
         return( ret );
 
     /*
@@ -105,10 +105,10 @@
      * Use the V memory location, which is currently all 0, to initialize the
      * MD context with an all-zero key. Then set V to its initial value.
      */
-    md_hmac_starts( &ctx->md_ctx, ctx->V, md_get_size( md_info ) );
-    memset( ctx->V, 0x01, md_get_size( md_info ) );
+    mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, mbedtls_md_get_size( md_info ) );
+    memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) );
 
-    hmac_drbg_update( ctx, data, data_len );
+    mbedtls_hmac_drbg_update( ctx, data, data_len );
 
     return( 0 );
 }
@@ -116,24 +116,24 @@
 /*
  * HMAC_DRBG reseeding: 10.1.2.4 (arabic) + 9.2 (Roman)
  */
-int hmac_drbg_reseed( hmac_drbg_context *ctx,
+int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx,
                       const unsigned char *additional, size_t len )
 {
-    unsigned char seed[POLARSSL_HMAC_DRBG_MAX_SEED_INPUT];
+    unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT];
     size_t seedlen;
 
     /* III. Check input length */
-    if( len > POLARSSL_HMAC_DRBG_MAX_INPUT ||
-        ctx->entropy_len + len > POLARSSL_HMAC_DRBG_MAX_SEED_INPUT )
+    if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT ||
+        ctx->entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT )
     {
-        return( POLARSSL_ERR_HMAC_DRBG_INPUT_TOO_BIG );
+        return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
     }
 
-    memset( seed, 0, POLARSSL_HMAC_DRBG_MAX_SEED_INPUT );
+    memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT );
 
     /* IV. Gather entropy_len bytes of entropy for the seed */
     if( ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) != 0 )
-        return( POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
+        return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
 
     seedlen = ctx->entropy_len;
 
@@ -145,7 +145,7 @@
     }
 
     /* 2. Update state */
-    hmac_drbg_update( ctx, seed, seedlen );
+    mbedtls_hmac_drbg_update( ctx, seed, seedlen );
 
     /* 3. Reset reseed_counter */
     ctx->reseed_counter = 1;
@@ -157,8 +157,8 @@
 /*
  * HMAC_DRBG initialisation (10.1.2.3 + 9.1)
  */
-int hmac_drbg_init( hmac_drbg_context *ctx,
-                    const md_info_t * md_info,
+int mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx,
+                    const mbedtls_md_info_t * md_info,
                     int (*f_entropy)(void *, unsigned char *, size_t),
                     void *p_entropy,
                     const unsigned char *custom,
@@ -167,27 +167,27 @@
     int ret;
     size_t entropy_len, md_size;
 
-    memset( ctx, 0, sizeof( hmac_drbg_context ) );
+    memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) );
 
-    md_init( &ctx->md_ctx );
+    mbedtls_md_init( &ctx->md_ctx );
 
-    if( ( ret = md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
+    if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
         return( ret );
 
-    md_size = md_get_size( md_info );
+    md_size = mbedtls_md_get_size( md_info );
 
     /*
      * Set initial working state.
      * Use the V memory location, which is currently all 0, to initialize the
      * MD context with an all-zero key. Then set V to its initial value.
      */
-    md_hmac_starts( &ctx->md_ctx, ctx->V, md_size );
+    mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size );
     memset( ctx->V, 0x01, md_size );
 
     ctx->f_entropy = f_entropy;
     ctx->p_entropy = p_entropy;
 
-    ctx->reseed_interval = POLARSSL_HMAC_DRBG_RESEED_INTERVAL;
+    ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL;
 
     /*
      * See SP800-57 5.6.1 (p. 65-66) for the security strength provided by
@@ -206,7 +206,7 @@
      */
     ctx->entropy_len = entropy_len * 3 / 2;
 
-    if( ( ret = hmac_drbg_reseed( ctx, custom, len ) ) != 0 )
+    if( ( ret = mbedtls_hmac_drbg_reseed( ctx, custom, len ) ) != 0 )
         return( ret );
 
     ctx->entropy_len = entropy_len;
@@ -217,7 +217,7 @@
 /*
  * Set prediction resistance
  */
-void hmac_drbg_set_prediction_resistance( hmac_drbg_context *ctx,
+void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx,
                                           int resistance )
 {
     ctx->prediction_resistance = resistance;
@@ -226,7 +226,7 @@
 /*
  * Set entropy length grabbed for reseeds
  */
-void hmac_drbg_set_entropy_len( hmac_drbg_context *ctx, size_t len )
+void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len )
 {
     ctx->entropy_len = len;
 }
@@ -234,7 +234,7 @@
 /*
  * Set reseed interval
  */
-void hmac_drbg_set_reseed_interval( hmac_drbg_context *ctx, int interval )
+void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval )
 {
     ctx->reseed_interval = interval;
 }
@@ -243,30 +243,30 @@
  * HMAC_DRBG random function with optional additional data:
  * 10.1.2.5 (arabic) + 9.3 (Roman)
  */
-int hmac_drbg_random_with_add( void *p_rng,
+int mbedtls_hmac_drbg_random_with_add( void *p_rng,
                                unsigned char *output, size_t out_len,
                                const unsigned char *additional, size_t add_len )
 {
     int ret;
-    hmac_drbg_context *ctx = (hmac_drbg_context *) p_rng;
-    size_t md_len = md_get_size( ctx->md_ctx.md_info );
+    mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
+    size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
     size_t left = out_len;
     unsigned char *out = output;
 
     /* II. Check request length */
-    if( out_len > POLARSSL_HMAC_DRBG_MAX_REQUEST )
-        return( POLARSSL_ERR_HMAC_DRBG_REQUEST_TOO_BIG );
+    if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST )
+        return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG );
 
     /* III. Check input length */
-    if( add_len > POLARSSL_HMAC_DRBG_MAX_INPUT )
-        return( POLARSSL_ERR_HMAC_DRBG_INPUT_TOO_BIG );
+    if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT )
+        return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
 
     /* 1. (aka VII and IX) Check reseed counter and PR */
     if( ctx->f_entropy != NULL && /* For no-reseeding instances */
-        ( ctx->prediction_resistance == POLARSSL_HMAC_DRBG_PR_ON ||
+        ( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON ||
           ctx->reseed_counter > ctx->reseed_interval ) )
     {
-        if( ( ret = hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 )
+        if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 )
             return( ret );
 
         add_len = 0; /* VII.4 */
@@ -274,16 +274,16 @@
 
     /* 2. Use additional data if any */
     if( additional != NULL && add_len != 0 )
-        hmac_drbg_update( ctx, additional, add_len );
+        mbedtls_hmac_drbg_update( ctx, additional, add_len );
 
     /* 3, 4, 5. Generate bytes */
     while( left != 0 )
     {
         size_t use_len = left > md_len ? md_len : left;
 
-        md_hmac_reset( &ctx->md_ctx );
-        md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
-        md_hmac_finish( &ctx->md_ctx, ctx->V );
+        mbedtls_md_hmac_reset( &ctx->md_ctx );
+        mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
+        mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V );
 
         memcpy( out, ctx->V, use_len );
         out += use_len;
@@ -291,7 +291,7 @@
     }
 
     /* 6. Update */
-    hmac_drbg_update( ctx, additional, add_len );
+    mbedtls_hmac_drbg_update( ctx, additional, add_len );
 
     /* 7. Update reseed counter */
     ctx->reseed_counter++;
@@ -303,40 +303,40 @@
 /*
  * HMAC_DRBG random function
  */
-int hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len )
+int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len )
 {
-    return( hmac_drbg_random_with_add( p_rng, output, out_len, NULL, 0 ) );
+    return( mbedtls_hmac_drbg_random_with_add( p_rng, output, out_len, NULL, 0 ) );
 }
 
 /*
  * Free an HMAC_DRBG context
  */
-void hmac_drbg_free( hmac_drbg_context *ctx )
+void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx )
 {
     if( ctx == NULL )
         return;
 
-    md_free( &ctx->md_ctx );
+    mbedtls_md_free( &ctx->md_ctx );
 
-    polarssl_zeroize( ctx, sizeof( hmac_drbg_context ) );
+    mbedtls_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) );
 }
 
-#if defined(POLARSSL_FS_IO)
-int hmac_drbg_write_seed_file( hmac_drbg_context *ctx, const char *path )
+#if defined(MBEDTLS_FS_IO)
+int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
 {
     int ret;
     FILE *f;
-    unsigned char buf[ POLARSSL_HMAC_DRBG_MAX_INPUT ];
+    unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
 
     if( ( f = fopen( path, "wb" ) ) == NULL )
-        return( POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR );
+        return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
 
-    if( ( ret = hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 )
+    if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 )
         goto exit;
 
     if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) )
     {
-        ret = POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR;
+        ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
         goto exit;
     }
 
@@ -347,49 +347,49 @@
     return( ret );
 }
 
-int hmac_drbg_update_seed_file( hmac_drbg_context *ctx, const char *path )
+int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
 {
     FILE *f;
     size_t n;
-    unsigned char buf[ POLARSSL_HMAC_DRBG_MAX_INPUT ];
+    unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
 
     if( ( f = fopen( path, "rb" ) ) == NULL )
-        return( POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR );
+        return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
 
     fseek( f, 0, SEEK_END );
     n = (size_t) ftell( f );
     fseek( f, 0, SEEK_SET );
 
-    if( n > POLARSSL_HMAC_DRBG_MAX_INPUT )
+    if( n > MBEDTLS_HMAC_DRBG_MAX_INPUT )
     {
         fclose( f );
-        return( POLARSSL_ERR_HMAC_DRBG_INPUT_TOO_BIG );
+        return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
     }
 
     if( fread( buf, 1, n, f ) != n )
     {
         fclose( f );
-        return( POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR );
+        return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
     }
 
     fclose( f );
 
-    hmac_drbg_update( ctx, buf, n );
+    mbedtls_hmac_drbg_update( ctx, buf, n );
 
-    return( hmac_drbg_write_seed_file( ctx, path ) );
+    return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) );
 }
-#endif /* POLARSSL_FS_IO */
+#endif /* MBEDTLS_FS_IO */
 
 
-#if defined(POLARSSL_SELF_TEST)
+#if defined(MBEDTLS_SELF_TEST)
 
-#if !defined(POLARSSL_SHA1_C)
+#if !defined(MBEDTLS_SHA1_C)
 /* Dummy checkup routine */
-int hmac_drbg_self_test( int verbose )
+int mbedtls_hmac_drbg_self_test( int verbose )
 {
 
     if( verbose != 0 )
-        polarssl_printf( "\n" );
+        mbedtls_printf( "\n" );
 
     return( 0 );
 }
@@ -442,63 +442,63 @@
 #define CHK( c )    if( (c) != 0 )                          \
                     {                                       \
                         if( verbose != 0 )                  \
-                            polarssl_printf( "failed\n" );  \
+                            mbedtls_printf( "failed\n" );  \
                         return( 1 );                        \
                     }
 
 /*
  * Checkup routine for HMAC_DRBG with SHA-1
  */
-int hmac_drbg_self_test( int verbose )
+int mbedtls_hmac_drbg_self_test( int verbose )
 {
-    hmac_drbg_context ctx;
+    mbedtls_hmac_drbg_context ctx;
     unsigned char buf[OUTPUT_LEN];
-    const md_info_t *md_info = md_info_from_type( POLARSSL_MD_SHA1 );
+    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
 
     /*
      * PR = True
      */
     if( verbose != 0 )
-        polarssl_printf( "  HMAC_DRBG (PR = True) : " );
+        mbedtls_printf( "  HMAC_DRBG (PR = True) : " );
 
     test_offset = 0;
-    CHK( hmac_drbg_init( &ctx, md_info,
+    CHK( mbedtls_hmac_drbg_init( &ctx, md_info,
                          hmac_drbg_self_test_entropy, (void *) entropy_pr,
                          NULL, 0 ) );
-    hmac_drbg_set_prediction_resistance( &ctx, POLARSSL_HMAC_DRBG_PR_ON );
-    CHK( hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
-    CHK( hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
+    mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON );
+    CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
+    CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
     CHK( memcmp( buf, result_pr, OUTPUT_LEN ) );
-    hmac_drbg_free( &ctx );
+    mbedtls_hmac_drbg_free( &ctx );
 
     if( verbose != 0 )
-        polarssl_printf( "passed\n" );
+        mbedtls_printf( "passed\n" );
 
     /*
      * PR = False
      */
     if( verbose != 0 )
-        polarssl_printf( "  HMAC_DRBG (PR = False) : " );
+        mbedtls_printf( "  HMAC_DRBG (PR = False) : " );
 
     test_offset = 0;
-    CHK( hmac_drbg_init( &ctx, md_info,
+    CHK( mbedtls_hmac_drbg_init( &ctx, md_info,
                          hmac_drbg_self_test_entropy, (void *) entropy_nopr,
                          NULL, 0 ) );
-    CHK( hmac_drbg_reseed( &ctx, NULL, 0 ) );
-    CHK( hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
-    CHK( hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
+    CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) );
+    CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
+    CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
     CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) );
-    hmac_drbg_free( &ctx );
+    mbedtls_hmac_drbg_free( &ctx );
 
     if( verbose != 0 )
-        polarssl_printf( "passed\n" );
+        mbedtls_printf( "passed\n" );
 
     if( verbose != 0 )
-        polarssl_printf( "\n" );
+        mbedtls_printf( "\n" );
 
     return( 0 );
 }
-#endif /* POLARSSL_SHA1_C */
-#endif /* POLARSSL_SELF_TEST */
+#endif /* MBEDTLS_SHA1_C */
+#endif /* MBEDTLS_SELF_TEST */
 
-#endif /* POLARSSL_HMAC_DRBG_C */
+#endif /* MBEDTLS_HMAC_DRBG_C */