diff --git a/library/pem.c b/library/pem.c
index c722282..c97e800 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -20,13 +20,13 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#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_PEM_PARSE_C) || defined(POLARSSL_PEM_WRITE_C)
+#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
 
 #include "mbedtls/pem.h"
 #include "mbedtls/base64.h"
@@ -37,27 +37,27 @@
 
 #include <string.h>
 
-#if defined(POLARSSL_PLATFORM_C)
+#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
 #else
 #include <stdlib.h>
-#define polarssl_malloc     malloc
-#define polarssl_free       free
+#define mbedtls_malloc     malloc
+#define mbedtls_free       free
 #endif
 
 /* 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;
 }
 
-#if defined(POLARSSL_PEM_PARSE_C)
-void pem_init( pem_context *ctx )
+#if defined(MBEDTLS_PEM_PARSE_C)
+void mbedtls_pem_init( mbedtls_pem_context *ctx )
 {
-    memset( ctx, 0, sizeof( pem_context ) );
+    memset( ctx, 0, sizeof( mbedtls_pem_context ) );
 }
 
-#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) &&         \
-    ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )
+#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+    ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
 /*
  * Read a 16-byte hex string and convert it to binary
  */
@@ -73,7 +73,7 @@
         if( *s >= '0' && *s <= '9' ) j = *s - '0'; else
         if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else
         if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else
-            return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+            return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
 
         k = ( ( i & 1 ) != 0 ) ? j : j << 4;
 
@@ -87,26 +87,26 @@
                         unsigned char *iv,
                         const unsigned char *pwd, size_t pwdlen )
 {
-    md5_context md5_ctx;
+    mbedtls_md5_context md5_ctx;
     unsigned char md5sum[16];
     size_t use_len;
 
-    md5_init( &md5_ctx );
+    mbedtls_md5_init( &md5_ctx );
 
     /*
      * key[ 0..15] = MD5(pwd || IV)
      */
-    md5_starts( &md5_ctx );
-    md5_update( &md5_ctx, pwd, pwdlen );
-    md5_update( &md5_ctx, iv,  8 );
-    md5_finish( &md5_ctx, md5sum );
+    mbedtls_md5_starts( &md5_ctx );
+    mbedtls_md5_update( &md5_ctx, pwd, pwdlen );
+    mbedtls_md5_update( &md5_ctx, iv,  8 );
+    mbedtls_md5_finish( &md5_ctx, md5sum );
 
     if( keylen <= 16 )
     {
         memcpy( key, md5sum, keylen );
 
-        md5_free( &md5_ctx );
-        polarssl_zeroize( md5sum, 16 );
+        mbedtls_md5_free( &md5_ctx );
+        mbedtls_zeroize( md5sum, 16 );
         return;
     }
 
@@ -115,11 +115,11 @@
     /*
      * key[16..23] = MD5(key[ 0..15] || pwd || IV])
      */
-    md5_starts( &md5_ctx );
-    md5_update( &md5_ctx, md5sum,  16 );
-    md5_update( &md5_ctx, pwd, pwdlen );
-    md5_update( &md5_ctx, iv,  8 );
-    md5_finish( &md5_ctx, md5sum );
+    mbedtls_md5_starts( &md5_ctx );
+    mbedtls_md5_update( &md5_ctx, md5sum,  16 );
+    mbedtls_md5_update( &md5_ctx, pwd, pwdlen );
+    mbedtls_md5_update( &md5_ctx, iv,  8 );
+    mbedtls_md5_finish( &md5_ctx, md5sum );
 
     use_len = 16;
     if( keylen < 32 )
@@ -127,11 +127,11 @@
 
     memcpy( key + 16, md5sum, use_len );
 
-    md5_free( &md5_ctx );
-    polarssl_zeroize( md5sum, 16 );
+    mbedtls_md5_free( &md5_ctx );
+    mbedtls_zeroize( md5sum, 16 );
 }
 
-#if defined(POLARSSL_DES_C)
+#if defined(MBEDTLS_DES_C)
 /*
  * Decrypt with DES-CBC, using PBKDF1 for key derivation
  */
@@ -139,19 +139,19 @@
                                unsigned char *buf, size_t buflen,
                                const unsigned char *pwd, size_t pwdlen )
 {
-    des_context des_ctx;
+    mbedtls_des_context des_ctx;
     unsigned char des_key[8];
 
-    des_init( &des_ctx );
+    mbedtls_des_init( &des_ctx );
 
     pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen );
 
-    des_setkey_dec( &des_ctx, des_key );
-    des_crypt_cbc( &des_ctx, DES_DECRYPT, buflen,
+    mbedtls_des_setkey_dec( &des_ctx, des_key );
+    mbedtls_des_crypt_cbc( &des_ctx, MBEDTLS_DES_DECRYPT, buflen,
                      des_iv, buf, buf );
 
-    des_free( &des_ctx );
-    polarssl_zeroize( des_key, 8 );
+    mbedtls_des_free( &des_ctx );
+    mbedtls_zeroize( des_key, 8 );
 }
 
 /*
@@ -161,23 +161,23 @@
                                unsigned char *buf, size_t buflen,
                                const unsigned char *pwd, size_t pwdlen )
 {
-    des3_context des3_ctx;
+    mbedtls_des3_context des3_ctx;
     unsigned char des3_key[24];
 
-    des3_init( &des3_ctx );
+    mbedtls_des3_init( &des3_ctx );
 
     pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen );
 
-    des3_set3key_dec( &des3_ctx, des3_key );
-    des3_crypt_cbc( &des3_ctx, DES_DECRYPT, buflen,
+    mbedtls_des3_set3key_dec( &des3_ctx, des3_key );
+    mbedtls_des3_crypt_cbc( &des3_ctx, MBEDTLS_DES_DECRYPT, buflen,
                      des3_iv, buf, buf );
 
-    des3_free( &des3_ctx );
-    polarssl_zeroize( des3_key, 24 );
+    mbedtls_des3_free( &des3_ctx );
+    mbedtls_zeroize( des3_key, 24 );
 }
-#endif /* POLARSSL_DES_C */
+#endif /* MBEDTLS_DES_C */
 
-#if defined(POLARSSL_AES_C)
+#if defined(MBEDTLS_AES_C)
 /*
  * Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation
  */
@@ -185,26 +185,26 @@
                                unsigned char *buf, size_t buflen,
                                const unsigned char *pwd, size_t pwdlen )
 {
-    aes_context aes_ctx;
+    mbedtls_aes_context aes_ctx;
     unsigned char aes_key[32];
 
-    aes_init( &aes_ctx );
+    mbedtls_aes_init( &aes_ctx );
 
     pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen );
 
-    aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 );
-    aes_crypt_cbc( &aes_ctx, AES_DECRYPT, buflen,
+    mbedtls_aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 );
+    mbedtls_aes_crypt_cbc( &aes_ctx, MBEDTLS_AES_DECRYPT, buflen,
                      aes_iv, buf, buf );
 
-    aes_free( &aes_ctx );
-    polarssl_zeroize( aes_key, keylen );
+    mbedtls_aes_free( &aes_ctx );
+    mbedtls_zeroize( aes_key, keylen );
 }
-#endif /* POLARSSL_AES_C */
+#endif /* MBEDTLS_AES_C */
 
-#endif /* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&
-          ( POLARSSL_AES_C || POLARSSL_DES_C ) */
+#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
+          ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
 
-int pem_read_buffer( pem_context *ctx, const char *header, const char *footer,
+int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
                      const unsigned char *data, const unsigned char *pwd,
                      size_t pwdlen, size_t *use_len )
 {
@@ -212,33 +212,33 @@
     size_t len;
     unsigned char *buf;
     const unsigned char *s1, *s2, *end;
-#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) &&         \
-    ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )
+#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+    ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
     unsigned char pem_iv[16];
-    cipher_type_t enc_alg = POLARSSL_CIPHER_NONE;
+    mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE;
 #else
     ((void) pwd);
     ((void) pwdlen);
-#endif /* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&
-          ( POLARSSL_AES_C || POLARSSL_DES_C ) */
+#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
+          ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
 
     if( ctx == NULL )
-        return( POLARSSL_ERR_PEM_BAD_INPUT_DATA );
+        return( MBEDTLS_ERR_PEM_BAD_INPUT_DATA );
 
     s1 = (unsigned char *) strstr( (const char *) data, header );
 
     if( s1 == NULL )
-        return( POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+        return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
 
     s2 = (unsigned char *) strstr( (const char *) data, footer );
 
     if( s2 == NULL || s2 <= s1 )
-        return( POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+        return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
 
     s1 += strlen( header );
     if( *s1 == '\r' ) s1++;
     if( *s1 == '\n' ) s1++;
-    else return( POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+    else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
 
     end = s2;
     end += strlen( footer );
@@ -250,111 +250,111 @@
 
     if( memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
     {
-#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) &&         \
-    ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )
+#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+    ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
         enc++;
 
         s1 += 22;
         if( *s1 == '\r' ) s1++;
         if( *s1 == '\n' ) s1++;
-        else return( POLARSSL_ERR_PEM_INVALID_DATA );
+        else return( MBEDTLS_ERR_PEM_INVALID_DATA );
 
 
-#if defined(POLARSSL_DES_C)
+#if defined(MBEDTLS_DES_C)
         if( memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 )
         {
-            enc_alg = POLARSSL_CIPHER_DES_EDE3_CBC;
+            enc_alg = MBEDTLS_CIPHER_DES_EDE3_CBC;
 
             s1 += 23;
             if( pem_get_iv( s1, pem_iv, 8 ) != 0 )
-                return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+                return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
 
             s1 += 16;
         }
         else if( memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 )
         {
-            enc_alg = POLARSSL_CIPHER_DES_CBC;
+            enc_alg = MBEDTLS_CIPHER_DES_CBC;
 
             s1 += 18;
             if( pem_get_iv( s1, pem_iv, 8) != 0 )
-                return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+                return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
 
             s1 += 16;
         }
-#endif /* POLARSSL_DES_C */
+#endif /* MBEDTLS_DES_C */
 
-#if defined(POLARSSL_AES_C)
+#if defined(MBEDTLS_AES_C)
         if( memcmp( s1, "DEK-Info: AES-", 14 ) == 0 )
         {
             if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 )
-                enc_alg = POLARSSL_CIPHER_AES_128_CBC;
+                enc_alg = MBEDTLS_CIPHER_AES_128_CBC;
             else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 )
-                enc_alg = POLARSSL_CIPHER_AES_192_CBC;
+                enc_alg = MBEDTLS_CIPHER_AES_192_CBC;
             else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 )
-                enc_alg = POLARSSL_CIPHER_AES_256_CBC;
+                enc_alg = MBEDTLS_CIPHER_AES_256_CBC;
             else
-                return( POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG );
+                return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
 
             s1 += 22;
             if( pem_get_iv( s1, pem_iv, 16 ) != 0 )
-                return( POLARSSL_ERR_PEM_INVALID_ENC_IV );
+                return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
 
             s1 += 32;
         }
-#endif /* POLARSSL_AES_C */
+#endif /* MBEDTLS_AES_C */
 
-        if( enc_alg == POLARSSL_CIPHER_NONE )
-            return( POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG );
+        if( enc_alg == MBEDTLS_CIPHER_NONE )
+            return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
 
         if( *s1 == '\r' ) s1++;
         if( *s1 == '\n' ) s1++;
-        else return( POLARSSL_ERR_PEM_INVALID_DATA );
+        else return( MBEDTLS_ERR_PEM_INVALID_DATA );
 #else
-        return( POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE );
-#endif /* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&
-          ( POLARSSL_AES_C || POLARSSL_DES_C ) */
+        return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
+#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
+          ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
     }
 
     len = 0;
-    ret = base64_decode( NULL, &len, s1, s2 - s1 );
+    ret = mbedtls_base64_decode( NULL, &len, s1, s2 - s1 );
 
-    if( ret == POLARSSL_ERR_BASE64_INVALID_CHARACTER )
-        return( POLARSSL_ERR_PEM_INVALID_DATA + ret );
+    if( ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER )
+        return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
 
-    if( ( buf = polarssl_malloc( len ) ) == NULL )
-        return( POLARSSL_ERR_PEM_MALLOC_FAILED );
+    if( ( buf = mbedtls_malloc( len ) ) == NULL )
+        return( MBEDTLS_ERR_PEM_MALLOC_FAILED );
 
-    if( ( ret = base64_decode( buf, &len, s1, s2 - s1 ) ) != 0 )
+    if( ( ret = mbedtls_base64_decode( buf, &len, s1, s2 - s1 ) ) != 0 )
     {
-        polarssl_free( buf );
-        return( POLARSSL_ERR_PEM_INVALID_DATA + ret );
+        mbedtls_free( buf );
+        return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
     }
 
     if( enc != 0 )
     {
-#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) &&         \
-    ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )
+#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+    ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
         if( pwd == NULL )
         {
-            polarssl_free( buf );
-            return( POLARSSL_ERR_PEM_PASSWORD_REQUIRED );
+            mbedtls_free( buf );
+            return( MBEDTLS_ERR_PEM_PASSWORD_REQUIRED );
         }
 
-#if defined(POLARSSL_DES_C)
-        if( enc_alg == POLARSSL_CIPHER_DES_EDE3_CBC )
+#if defined(MBEDTLS_DES_C)
+        if( enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC )
             pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );
-        else if( enc_alg == POLARSSL_CIPHER_DES_CBC )
+        else if( enc_alg == MBEDTLS_CIPHER_DES_CBC )
             pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );
-#endif /* POLARSSL_DES_C */
+#endif /* MBEDTLS_DES_C */
 
-#if defined(POLARSSL_AES_C)
-        if( enc_alg == POLARSSL_CIPHER_AES_128_CBC )
+#if defined(MBEDTLS_AES_C)
+        if( enc_alg == MBEDTLS_CIPHER_AES_128_CBC )
             pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );
-        else if( enc_alg == POLARSSL_CIPHER_AES_192_CBC )
+        else if( enc_alg == MBEDTLS_CIPHER_AES_192_CBC )
             pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );
-        else if( enc_alg == POLARSSL_CIPHER_AES_256_CBC )
+        else if( enc_alg == MBEDTLS_CIPHER_AES_256_CBC )
             pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );
-#endif /* POLARSSL_AES_C */
+#endif /* MBEDTLS_AES_C */
 
         /*
          * The result will be ASN.1 starting with a SEQUENCE tag, with 1 to 3
@@ -364,14 +364,14 @@
          */
         if( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 )
         {
-            polarssl_free( buf );
-            return( POLARSSL_ERR_PEM_PASSWORD_MISMATCH );
+            mbedtls_free( buf );
+            return( MBEDTLS_ERR_PEM_PASSWORD_MISMATCH );
         }
 #else
-        polarssl_free( buf );
-        return( POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE );
-#endif /* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&
-          ( POLARSSL_AES_C || POLARSSL_DES_C ) */
+        mbedtls_free( buf );
+        return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
+#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
+          ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
     }
 
     ctx->buf = buf;
@@ -380,17 +380,17 @@
     return( 0 );
 }
 
-void pem_free( pem_context *ctx )
+void mbedtls_pem_free( mbedtls_pem_context *ctx )
 {
-    polarssl_free( ctx->buf );
-    polarssl_free( ctx->info );
+    mbedtls_free( ctx->buf );
+    mbedtls_free( ctx->info );
 
-    polarssl_zeroize( ctx, sizeof( pem_context ) );
+    mbedtls_zeroize( ctx, sizeof( mbedtls_pem_context ) );
 }
-#endif /* POLARSSL_PEM_PARSE_C */
+#endif /* MBEDTLS_PEM_PARSE_C */
 
-#if defined(POLARSSL_PEM_WRITE_C)
-int pem_write_buffer( const char *header, const char *footer,
+#if defined(MBEDTLS_PEM_WRITE_C)
+int mbedtls_pem_write_buffer( const char *header, const char *footer,
                       const unsigned char *der_data, size_t der_len,
                       unsigned char *buf, size_t buf_len, size_t *olen )
 {
@@ -398,22 +398,22 @@
     unsigned char *encode_buf, *c, *p = buf;
     size_t len = 0, use_len = 0, add_len = 0;
 
-    base64_encode( NULL, &use_len, der_data, der_len );
+    mbedtls_base64_encode( NULL, &use_len, der_data, der_len );
     add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1;
 
     if( use_len + add_len > buf_len )
     {
         *olen = use_len + add_len;
-        return( POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL );
+        return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
     }
 
-    if( ( encode_buf = polarssl_malloc( use_len ) ) == NULL )
-        return( POLARSSL_ERR_PEM_MALLOC_FAILED );
+    if( ( encode_buf = mbedtls_malloc( use_len ) ) == NULL )
+        return( MBEDTLS_ERR_PEM_MALLOC_FAILED );
 
-    if( ( ret = base64_encode( encode_buf, &use_len, der_data,
+    if( ( ret = mbedtls_base64_encode( encode_buf, &use_len, der_data,
                                der_len ) ) != 0 )
     {
-        polarssl_free( encode_buf );
+        mbedtls_free( encode_buf );
         return( ret );
     }
 
@@ -437,8 +437,8 @@
     *p++ = '\0';
     *olen = p - buf;
 
-    polarssl_free( encode_buf );
+    mbedtls_free( encode_buf );
     return( 0 );
 }
-#endif /* POLARSSL_PEM_WRITE_C */
-#endif /* POLARSSL_PEM_PARSE_C || POLARSSL_PEM_WRITE_C */
+#endif /* MBEDTLS_PEM_WRITE_C */
+#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */