diff --git a/programs/hash/hello.c b/programs/hash/hello.c
index df420f2..a69154f 100644
--- a/programs/hash/hello.c
+++ b/programs/hash/hello.c
@@ -29,7 +29,9 @@
 #include "mbedtls/platform.h"
 #else
 #include <stdio.h>
-#define mbedtls_printf     printf
+#define mbedtls_printf       printf
+#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
+#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
 #endif
 
 #if defined(MBEDTLS_MD5_C)
@@ -45,13 +47,14 @@
 #else
 int main( void )
 {
-    int i;
+    int i, ret;
     unsigned char digest[16];
     char str[] = "Hello, world!";
 
     mbedtls_printf( "\n  MD5('%s') = ", str );
 
-    mbedtls_md5( (unsigned char *) str, 13, digest );
+    if( ( ret = mbedtls_md5_ext( (unsigned char *) str, 13, digest ) ) != 0 )
+        return( MBEDTLS_EXIT_FAILURE );
 
     for( i = 0; i < 16; i++ )
         mbedtls_printf( "%02x", digest[i] );
@@ -63,6 +66,6 @@
     fflush( stdout ); getchar();
 #endif
 
-    return( 0 );
+    return( MBEDTLS_EXIT_SUCCESS );
 }
 #endif /* MBEDTLS_MD5_C */
diff --git a/programs/pkey/dh_client.c b/programs/pkey/dh_client.c
index 875d0b0..21c4a81 100644
--- a/programs/pkey/dh_client.c
+++ b/programs/pkey/dh_client.c
@@ -212,7 +212,11 @@
         goto exit;
     }
 
-    mbedtls_sha1( buf, (int)( p - 2 - buf ), hash );
+    if( ( ret = mbedtls_sha1_ext( buf, (int)( p - 2 - buf ), hash ) ) != 0 )
+    {
+        mbedtls_printf( " failed\n  ! mbedtls_sha1_ext returned %d\n\n", ret );
+        goto exit;
+    }
 
     if( ( ret = mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL, MBEDTLS_RSA_PUBLIC,
                                   MBEDTLS_MD_SHA256, 0, hash, p ) ) != 0 )
diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index 8bf2b1b..daa96e6 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -203,7 +203,11 @@
     /*
      * 5. Sign the parameters and send them
      */
-    mbedtls_sha1( buf, n, hash );
+    if( ( ret = mbedtls_sha1_ext( buf, n, hash ) ) != 0 )
+    {
+        mbedtls_printf( " failed\n  ! mbedtls_sha1_ext returned %d\n\n", ret );
+        goto exit;
+    }
 
     buf[n    ] = (unsigned char)( rsa.len >> 8 );
     buf[n + 1] = (unsigned char)( rsa.len      );
diff --git a/programs/pkey/ecdsa.c b/programs/pkey/ecdsa.c
index c3ce56a..ecb6c22 100644
--- a/programs/pkey/ecdsa.c
+++ b/programs/pkey/ecdsa.c
@@ -102,7 +102,6 @@
     mbedtls_ecdsa_context ctx_sign, ctx_verify;
     mbedtls_entropy_context entropy;
     mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_sha256_context sha256_ctx;
     unsigned char message[100];
     unsigned char hash[32];
     unsigned char sig[MBEDTLS_ECDSA_MAX_LEN];
@@ -113,7 +112,6 @@
     mbedtls_ecdsa_init( &ctx_sign );
     mbedtls_ecdsa_init( &ctx_verify );
     mbedtls_ctr_drbg_init( &ctr_drbg );
-    mbedtls_sha256_init( &sha256_ctx );
 
     memset( sig, 0, sizeof( sig ) );
     memset( message, 0x25, sizeof( message ) );
@@ -165,9 +163,11 @@
     mbedtls_printf( "  . Computing message hash..." );
     fflush( stdout );
 
-    mbedtls_sha256_starts( &sha256_ctx, 0 );
-    mbedtls_sha256_update( &sha256_ctx, message, sizeof( message ) );
-    mbedtls_sha256_finish( &sha256_ctx, hash );
+    if( ( ret = mbedtls_sha256_ext( message, sizeof( message ), hash, 0 ) ) != 0 )
+    {
+        mbedtls_printf( " failed\n  ! mbedtls_sha256_ext returned %d\n", ret );
+        goto exit;
+    }
 
     mbedtls_printf( " ok\n" );
 
@@ -242,7 +242,6 @@
     mbedtls_ecdsa_free( &ctx_sign );
     mbedtls_ctr_drbg_free( &ctr_drbg );
     mbedtls_entropy_free( &entropy );
-    mbedtls_sha256_free( &sha256_ctx );
 
     return( ret );
 }
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index eb578e7..6ec7cf5 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -327,32 +327,32 @@
 
 #if defined(MBEDTLS_MD4_C)
     if( todo.md4 )
-        TIME_AND_TSC( "MD4", mbedtls_md4( buf, BUFSIZE, tmp ) );
+        TIME_AND_TSC( "MD4", mbedtls_md4_ext( buf, BUFSIZE, tmp ) );
 #endif
 
 #if defined(MBEDTLS_MD5_C)
     if( todo.md5 )
-        TIME_AND_TSC( "MD5", mbedtls_md5( buf, BUFSIZE, tmp ) );
+        TIME_AND_TSC( "MD5", mbedtls_md5_ext( buf, BUFSIZE, tmp ) );
 #endif
 
 #if defined(MBEDTLS_RIPEMD160_C)
     if( todo.ripemd160 )
-        TIME_AND_TSC( "RIPEMD160", mbedtls_ripemd160( buf, BUFSIZE, tmp ) );
+        TIME_AND_TSC( "RIPEMD160", mbedtls_ripemd160_ext( buf, BUFSIZE, tmp ) );
 #endif
 
 #if defined(MBEDTLS_SHA1_C)
     if( todo.sha1 )
-        TIME_AND_TSC( "SHA-1", mbedtls_sha1( buf, BUFSIZE, tmp ) );
+        TIME_AND_TSC( "SHA-1", mbedtls_sha1_ext( buf, BUFSIZE, tmp ) );
 #endif
 
 #if defined(MBEDTLS_SHA256_C)
     if( todo.sha256 )
-        TIME_AND_TSC( "SHA-256", mbedtls_sha256( buf, BUFSIZE, tmp, 0 ) );
+        TIME_AND_TSC( "SHA-256", mbedtls_sha256_ext( buf, BUFSIZE, tmp, 0 ) );
 #endif
 
 #if defined(MBEDTLS_SHA512_C)
     if( todo.sha512 )
-        TIME_AND_TSC( "SHA-512", mbedtls_sha512( buf, BUFSIZE, tmp, 0 ) );
+        TIME_AND_TSC( "SHA-512", mbedtls_sha512_ext( buf, BUFSIZE, tmp, 0 ) );
 #endif
 
 #if defined(MBEDTLS_ARC4_C)