diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h
index 5c7b2f6..dec5111 100644
--- a/include/mbedtls/pk.h
+++ b/include/mbedtls/pk.h
@@ -667,6 +667,8 @@
  *                  The empty password is not supported.
  * \param pwdlen    Size of the password in bytes.
  *                  Ignored if \p pwd is \c NULL.
+ * \param f_rng     RNG function, must not be \c NULL. Used for blinding.
+ * \param p_rng     RNG parameter
  *
  * \note            On entry, ctx must be empty, either freshly initialised
  *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a
@@ -677,8 +679,9 @@
  * \return          0 if successful, or a specific PK or PEM error code
  */
 int mbedtls_pk_parse_key( mbedtls_pk_context *ctx,
-                  const unsigned char *key, size_t keylen,
-                  const unsigned char *pwd, size_t pwdlen );
+              const unsigned char *key, size_t keylen,
+              const unsigned char *pwd, size_t pwdlen,
+              int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
 
 /** \ingroup pk_module */
 /**
@@ -718,6 +721,8 @@
  *                  Pass a null-terminated string if expecting an encrypted
  *                  key; a non-encrypted key will also be accepted.
  *                  The empty password is not supported.
+ * \param f_rng     RNG function, must not be \c NULL. Used for blinding.
+ * \param p_rng     RNG parameter
  *
  * \note            On entry, ctx must be empty, either freshly initialised
  *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a
@@ -728,7 +733,8 @@
  * \return          0 if successful, or a specific PK or PEM error code
  */
 int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx,
-                      const char *path, const char *password );
+                  const char *path, const char *password,
+                  int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
 
 /** \ingroup pk_module */
 /**
diff --git a/library/pkparse.c b/library/pkparse.c
index 3222ca2..5438ee4 100644
--- a/library/pkparse.c
+++ b/library/pkparse.c
@@ -123,7 +123,8 @@
  * Load and parse a private key
  */
 int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx,
-                      const char *path, const char *pwd )
+        const char *path, const char *pwd,
+        int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t n;
@@ -136,10 +137,10 @@
         return( ret );
 
     if( pwd == NULL )
-        ret = mbedtls_pk_parse_key( ctx, buf, n, NULL, 0 );
+        ret = mbedtls_pk_parse_key( ctx, buf, n, NULL, 0, f_rng, p_rng );
     else
         ret = mbedtls_pk_parse_key( ctx, buf, n,
-                (const unsigned char *) pwd, strlen( pwd ) );
+                (const unsigned char *) pwd, strlen( pwd ), f_rng, p_rng );
 
     mbedtls_platform_zeroize( buf, n );
     mbedtls_free( buf );
@@ -859,8 +860,8 @@
  * Parse a SEC1 encoded private EC key
  */
 static int pk_parse_key_sec1_der( mbedtls_ecp_keypair *eck,
-                                  const unsigned char *key,
-                                  size_t keylen )
+        const unsigned char *key, size_t keylen,
+        int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int version, pubkey_done;
@@ -967,7 +968,7 @@
 
     if( ! pubkey_done &&
         ( ret = mbedtls_ecp_mul( &eck->grp, &eck->Q, &eck->d, &eck->grp.G,
-                                                      NULL, NULL ) ) != 0 )
+                                 f_rng, p_rng ) ) != 0 )
     {
         mbedtls_ecp_keypair_free( eck );
         return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret ) );
@@ -997,9 +998,9 @@
  *
  */
 static int pk_parse_key_pkcs8_unencrypted_der(
-                                    mbedtls_pk_context *pk,
-                                    const unsigned char* key,
-                                    size_t keylen )
+        mbedtls_pk_context *pk,
+        const unsigned char* key, size_t keylen,
+        int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
 {
     int ret, version;
     size_t len;
@@ -1071,7 +1072,7 @@
     if( pk_alg == MBEDTLS_PK_ECKEY || pk_alg == MBEDTLS_PK_ECKEY_DH )
     {
         if( ( ret = pk_use_ecparams( &params, &mbedtls_pk_ec( *pk )->grp ) ) != 0 ||
-            ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), p, len )  ) != 0 )
+            ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), p, len, f_rng, p_rng ) ) != 0 )
         {
             mbedtls_pk_free( pk );
             return( ret );
@@ -1094,9 +1095,10 @@
  */
 #if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
 static int pk_parse_key_pkcs8_encrypted_der(
-                                    mbedtls_pk_context *pk,
-                                    unsigned char *key, size_t keylen,
-                                    const unsigned char *pwd, size_t pwdlen )
+        mbedtls_pk_context *pk,
+        unsigned char *key, size_t keylen,
+        const unsigned char *pwd, size_t pwdlen,
+        int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
 {
     int ret, decrypted = 0;
     size_t len;
@@ -1206,7 +1208,7 @@
     if( decrypted == 0 )
         return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
 
-    return( pk_parse_key_pkcs8_unencrypted_der( pk, buf, len ) );
+    return( pk_parse_key_pkcs8_unencrypted_der( pk, buf, len, f_rng, p_rng ) );
 }
 #endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */
 
@@ -1215,7 +1217,8 @@
  */
 int mbedtls_pk_parse_key( mbedtls_pk_context *pk,
                   const unsigned char *key, size_t keylen,
-                  const unsigned char *pwd, size_t pwdlen )
+                  const unsigned char *pwd, size_t pwdlen,
+                  int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const mbedtls_pk_info_t *pk_info;
@@ -1278,7 +1281,8 @@
 
         if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 ||
             ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ),
-                                           pem.buf, pem.buflen ) ) != 0 )
+                                           pem.buf, pem.buflen,
+                                           f_rng, p_rng ) ) != 0 )
         {
             mbedtls_pk_free( pk );
         }
@@ -1305,7 +1309,7 @@
     if( ret == 0 )
     {
         if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk,
-                                                pem.buf, pem.buflen ) ) != 0 )
+                        pem.buf, pem.buflen, f_rng, p_rng ) ) != 0 )
         {
             mbedtls_pk_free( pk );
         }
@@ -1327,9 +1331,8 @@
                                key, NULL, 0, &len );
     if( ret == 0 )
     {
-        if( ( ret = pk_parse_key_pkcs8_encrypted_der( pk,
-                                                      pem.buf, pem.buflen,
-                                                      pwd, pwdlen ) ) != 0 )
+        if( ( ret = pk_parse_key_pkcs8_encrypted_der( pk, pem.buf, pem.buflen,
+                        pwd, pwdlen, f_rng, p_rng ) ) != 0 )
         {
             mbedtls_pk_free( pk );
         }
@@ -1362,7 +1365,7 @@
         memcpy( key_copy, key, keylen );
 
         ret = pk_parse_key_pkcs8_encrypted_der( pk, key_copy, keylen,
-                                                pwd, pwdlen );
+                                                pwd, pwdlen, f_rng, p_rng );
 
         mbedtls_platform_zeroize( key_copy, keylen );
         mbedtls_free( key_copy );
@@ -1380,8 +1383,11 @@
     }
 #endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */
 
-    if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk, key, keylen ) ) == 0 )
+    if( ( ret = pk_parse_key_pkcs8_unencrypted_der(
+                    pk, key, keylen, f_rng, p_rng ) ) == 0 )
+    {
         return( 0 );
+    }
 
     mbedtls_pk_free( pk );
     mbedtls_pk_init( pk );
@@ -1403,7 +1409,7 @@
     pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_ECKEY );
     if( mbedtls_pk_setup( pk, pk_info ) == 0 &&
         pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ),
-                               key, keylen ) == 0 )
+                               key, keylen, f_rng, p_rng ) == 0 )
     {
         return( 0 );
     }
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index f2e9a1c..ef2adc1 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -108,7 +108,8 @@
     /* Parse the data. */
     if( PSA_KEY_TYPE_IS_KEY_PAIR( type ) )
         status = mbedtls_to_psa_error(
-            mbedtls_pk_parse_key( &ctx, data, data_length, NULL, 0 ) );
+            mbedtls_pk_parse_key( &ctx, data, data_length, NULL, 0,
+                mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE ) );
     else
         status = mbedtls_to_psa_error(
             mbedtls_pk_parse_public_key( &ctx, data, data_length ) );
diff --git a/programs/fuzz/fuzz_dtlsserver.c b/programs/fuzz/fuzz_dtlsserver.c
index 34ff63e..a64eef9 100644
--- a/programs/fuzz/fuzz_dtlsserver.c
+++ b/programs/fuzz/fuzz_dtlsserver.c
@@ -6,6 +6,7 @@
 #include "common.h"
 #include "mbedtls/ssl.h"
 #include "test/certs.h"
+#include "test/random.h"
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 #include "mbedtls/entropy.h"
 #include "mbedtls/ctr_drbg.h"
@@ -55,7 +56,8 @@
                                    mbedtls_test_cas_pem_len ) != 0)
             return 1;
         if (mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                                 mbedtls_test_srv_key_len, NULL, 0 ) != 0)
+                                 mbedtls_test_srv_key_len, NULL, 0,
+                                 mbedtls_test_rnd_std_rand, NULL ) != 0)
             return 1;
 #endif
         dummy_init();
diff --git a/programs/fuzz/fuzz_privkey.c b/programs/fuzz/fuzz_privkey.c
index f76afd1..a061875 100644
--- a/programs/fuzz/fuzz_privkey.c
+++ b/programs/fuzz/fuzz_privkey.c
@@ -3,6 +3,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include "mbedtls/pk.h"
+#include "test/random.h"
 
 //4 Kb should be enough for every bug ;-)
 #define MAX_LEN 0x1000
@@ -19,7 +20,8 @@
     }
 
     mbedtls_pk_init( &pk );
-    ret = mbedtls_pk_parse_key( &pk, Data, Size, NULL, 0 );
+    ret = mbedtls_pk_parse_key( &pk, Data, Size, NULL, 0,
+                                mbedtls_test_rnd_std_rand, NULL );
     if (ret == 0) {
 #if defined(MBEDTLS_RSA_C)
         if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_RSA )
diff --git a/programs/fuzz/fuzz_server.c b/programs/fuzz/fuzz_server.c
index 5480e3e..d4480c5 100644
--- a/programs/fuzz/fuzz_server.c
+++ b/programs/fuzz/fuzz_server.c
@@ -66,7 +66,8 @@
                                    mbedtls_test_cas_pem_len ) != 0)
             return 1;
         if (mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                                 mbedtls_test_srv_key_len, NULL, 0 ) != 0)
+                                 mbedtls_test_srv_key_len, NULL, 0,
+                                 mbedtls_ctr_drbg_random, &ctr_drbg ) != 0)
             return 1;
 #endif
 
diff --git a/programs/pkey/key_app.c b/programs/pkey/key_app.c
index 7bd93c7..0e30be4 100644
--- a/programs/pkey/key_app.c
+++ b/programs/pkey/key_app.c
@@ -40,6 +40,8 @@
 #include "mbedtls/rsa.h"
 #include "mbedtls/pk.h"
 
+#include "test/random.h"
+
 #include <string.h>
 #endif
 
@@ -181,7 +183,8 @@
         mbedtls_printf( "\n  . Loading the private key ..." );
         fflush( stdout );
 
-        ret = mbedtls_pk_parse_keyfile( &pk, opt.filename, opt.password );
+        ret = mbedtls_pk_parse_keyfile( &pk, opt.filename, opt.password,
+                                        mbedtls_test_rnd_std_rand, NULL );
 
         if( ret != 0 )
         {
diff --git a/programs/pkey/key_app_writer.c b/programs/pkey/key_app_writer.c
index 4b65262..c7f9741 100644
--- a/programs/pkey/key_app_writer.c
+++ b/programs/pkey/key_app_writer.c
@@ -39,6 +39,8 @@
 #include "mbedtls/pk.h"
 #include "mbedtls/error.h"
 
+#include "test/random.h"
+
 #include <stdio.h>
 #include <string.h>
 #endif
@@ -292,8 +294,8 @@
         mbedtls_printf( "\n  . Loading the private key ..." );
         fflush( stdout );
 
-        ret = mbedtls_pk_parse_keyfile( &key, opt.filename, NULL );
-
+        ret = mbedtls_pk_parse_keyfile( &key, opt.filename, NULL,
+                                        mbedtls_test_rnd_std_rand, NULL );
         if( ret != 0 )
         {
             mbedtls_strerror( ret, (char *) buf, sizeof(buf) );
diff --git a/programs/pkey/pk_decrypt.c b/programs/pkey/pk_decrypt.c
index 810d6fb..e01f5d5 100644
--- a/programs/pkey/pk_decrypt.c
+++ b/programs/pkey/pk_decrypt.c
@@ -106,7 +106,8 @@
     mbedtls_printf( "\n  . Reading private key from '%s'", argv[1] );
     fflush( stdout );
 
-    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
+    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "",
+                    mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_pk_parse_keyfile returned -0x%04x\n", (unsigned int) -ret );
         goto exit;
diff --git a/programs/pkey/pk_sign.c b/programs/pkey/pk_sign.c
index 451e3de..422fa25 100644
--- a/programs/pkey/pk_sign.c
+++ b/programs/pkey/pk_sign.c
@@ -101,7 +101,8 @@
     mbedtls_printf( "\n  . Reading private key from '%s'", argv[1] );
     fflush( stdout );
 
-    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
+    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "",
+                    mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! Could not parse '%s'\n", argv[1] );
         goto exit;
diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index 26056dd..bbbe0a9 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -102,7 +102,8 @@
     mbedtls_printf( "\n  . Reading private key from '%s'", argv[1] );
     fflush( stdout );
 
-    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
+    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "",
+                    mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! Could not read key from '%s'\n", argv[1] );
         mbedtls_printf( "  ! mbedtls_pk_parse_public_keyfile returned %d\n\n", ret );
diff --git a/programs/ssl/dtls_server.c b/programs/ssl/dtls_server.c
index de47aab..857671f 100644
--- a/programs/ssl/dtls_server.c
+++ b/programs/ssl/dtls_server.c
@@ -79,7 +79,9 @@
 #include "mbedtls/error.h"
 #include "mbedtls/debug.h"
 #include "mbedtls/timing.h"
+
 #include "test/certs.h"
+#include "test/random.h"
 
 #if defined(MBEDTLS_SSL_CACHE_C)
 #include "mbedtls/ssl_cache.h"
@@ -138,7 +140,23 @@
 #endif
 
     /*
-     * 1. Load the certificates and private RSA key
+     * 1. Seed the RNG
+     */
+    printf( "  . Seeding the random number generator..." );
+    fflush( stdout );
+
+    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
+                               (const unsigned char *) pers,
+                               strlen( pers ) ) ) != 0 )
+    {
+        printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
+        goto exit;
+    }
+
+    printf( " ok\n" );
+
+    /*
+     * 2. Load the certificates and private RSA key
      */
     printf( "\n  . Loading the server cert. and key..." );
     fflush( stdout );
@@ -165,7 +183,7 @@
     }
 
     ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
+                         mbedtls_test_srv_key_len, NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
         printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
@@ -175,7 +193,7 @@
     printf( " ok\n" );
 
     /*
-     * 2. Setup the "listening" UDP socket
+     * 3. Setup the "listening" UDP socket
      */
     printf( "  . Bind on udp/*/4433 ..." );
     fflush( stdout );
@@ -189,22 +207,6 @@
     printf( " ok\n" );
 
     /*
-     * 3. Seed the RNG
-     */
-    printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    printf( " ok\n" );
-
-    /*
      * 4. Setup stuff
      */
     printf( "  . Setting up the DTLS data..." );
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 98a3048..6501c49 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -1548,12 +1548,12 @@
     else
 #if defined(MBEDTLS_FS_IO)
     if( strlen( opt.key_file ) )
-        ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, opt.key_pwd );
+        ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, opt.key_pwd, rng_get, &rng );
     else
 #endif
         ret = mbedtls_pk_parse_key( &pkey,
                 (const unsigned char *) mbedtls_test_cli_key,
-                mbedtls_test_cli_key_len, NULL, 0 );
+                mbedtls_test_cli_key_len, NULL, 0, rng_get, &rng );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned -0x%x\n\n",
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
index 5732108..7419010 100644
--- a/programs/ssl/ssl_fork_server.c
+++ b/programs/ssl/ssl_fork_server.c
@@ -166,7 +166,8 @@
     }
 
     ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                          mbedtls_test_srv_key_len, NULL, 0 );
+                          mbedtls_test_srv_key_len, NULL, 0,
+                          mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
         mbedtls_printf( " failed!  mbedtls_pk_parse_key returned %d\n\n", ret );
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 09bbc3d..f223977 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -556,12 +556,17 @@
 
 #if defined(MBEDTLS_FS_IO)
     if( strlen( opt.key_file ) )
-        ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" );
+    {
+        ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "",
+                mbedtls_ctr_drbg_random, &ctr_drbg );
+    }
     else
 #endif
 #if defined(MBEDTLS_PEM_PARSE_C)
+    {
         ret = mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_cli_key,
-                mbedtls_test_cli_key_len, NULL, 0 );
+                mbedtls_test_cli_key_len, NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg );
+    }
 #else
     {
         mbedtls_printf("MBEDTLS_PEM_PARSE_C not defined.");
diff --git a/programs/ssl/ssl_pthread_server.c b/programs/ssl/ssl_pthread_server.c
index 93eab46..a083e4b 100644
--- a/programs/ssl/ssl_pthread_server.c
+++ b/programs/ssl/ssl_pthread_server.c
@@ -360,7 +360,23 @@
     mbedtls_entropy_init( &entropy );
 
     /*
-     * 1. Load the certificates and private RSA key
+     * 1a. Seed the random number generator
+     */
+    mbedtls_printf( "  . Seeding the random number generator..." );
+
+    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
+                               (const unsigned char *) pers,
+                               strlen( pers ) ) ) != 0 )
+    {
+        mbedtls_printf( " failed: mbedtls_ctr_drbg_seed returned -0x%04x\n",
+                ( unsigned int ) -ret );
+        goto exit;
+    }
+
+    mbedtls_printf( " ok\n" );
+
+    /*
+     * 1b. Load the certificates and private RSA key
      */
     mbedtls_printf( "\n  . Loading the server cert. and key..." );
     fflush( stdout );
@@ -388,7 +404,8 @@
 
     mbedtls_pk_init( &pkey );
     ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
+                         mbedtls_test_srv_key_len, NULL, 0,
+                         mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
@@ -398,22 +415,6 @@
     mbedtls_printf( " ok\n" );
 
     /*
-     * 1b. Seed the random number generator
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed: mbedtls_ctr_drbg_seed returned -0x%04x\n",
-                ( unsigned int ) -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
      * 1c. Prepare SSL configuration
      */
     mbedtls_printf( "  . Setting up the SSL data...." );
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index 42196ff..aaccb58 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -125,7 +125,23 @@
 #endif
 
     /*
-     * 1. Load the certificates and private RSA key
+     * 1. Seed the RNG
+     */
+    mbedtls_printf( "  . Seeding the random number generator..." );
+    fflush( stdout );
+
+    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
+                               (const unsigned char *) pers,
+                               strlen( pers ) ) ) != 0 )
+    {
+        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
+        goto exit;
+    }
+
+    mbedtls_printf( " ok\n" );
+
+    /*
+     * 2. Load the certificates and private RSA key
      */
     mbedtls_printf( "\n  . Loading the server cert. and key..." );
     fflush( stdout );
@@ -152,7 +168,8 @@
     }
 
     ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
+                         mbedtls_test_srv_key_len, NULL, 0,
+                         mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
@@ -162,7 +179,7 @@
     mbedtls_printf( " ok\n" );
 
     /*
-     * 2. Setup the listening TCP socket
+     * 3. Setup the listening TCP socket
      */
     mbedtls_printf( "  . Bind on https://localhost:4433/ ..." );
     fflush( stdout );
@@ -176,22 +193,6 @@
     mbedtls_printf( " ok\n" );
 
     /*
-     * 3. Seed the RNG
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
      * 4. Setup stuff
      */
     mbedtls_printf( "  . Setting up the SSL data...." );
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index de4eb6d..37f4348 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -20,6 +20,7 @@
 #define MBEDTLS_ALLOW_PRIVATE_ACCESS
 
 #include "ssl_test_lib.h"
+#include "test/random.h"
 
 #if defined(MBEDTLS_SSL_TEST_IMPOSSIBLE)
 int main( void )
@@ -727,7 +728,8 @@
         mbedtls_pk_init( new->key );
 
         if( mbedtls_x509_crt_parse_file( new->cert, crt_file ) != 0 ||
-            mbedtls_pk_parse_keyfile( new->key, key_file, "" ) != 0 )
+            mbedtls_pk_parse_keyfile( new->key, key_file, "",
+                mbedtls_test_rnd_std_rand, NULL ) != 0 )
             goto error;
 
         if( strcmp( ca_file, "-" ) != 0 )
@@ -2257,7 +2259,7 @@
     {
         key_cert_init++;
         if( ( ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file,
-                                              opt.key_pwd ) ) != 0 )
+                                              opt.key_pwd, rng_get, &rng ) ) != 0 )
         {
             mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile returned -0x%x\n\n", (unsigned int) -ret );
             goto exit;
@@ -2283,7 +2285,7 @@
     {
         key_cert_init2++;
         if( ( ret = mbedtls_pk_parse_keyfile( &pkey2, opt.key_file2,
-                                              opt.key_pwd2 ) ) != 0 )
+                                              opt.key_pwd2, rng_get, &rng ) ) != 0 )
         {
             mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile(2) returned -0x%x\n\n",
                             (unsigned int) -ret );
@@ -2314,7 +2316,8 @@
         }
         if( ( ret = mbedtls_pk_parse_key( &pkey,
                                   (const unsigned char *) mbedtls_test_srv_key_rsa,
-                                  mbedtls_test_srv_key_rsa_len, NULL, 0 ) ) != 0 )
+                                  mbedtls_test_srv_key_rsa_len, NULL, 0,
+                                  rng_get, &rng ) ) != 0 )
         {
             mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned -0x%x\n\n",
                             (unsigned int) -ret );
@@ -2333,7 +2336,8 @@
         }
         if( ( ret = mbedtls_pk_parse_key( &pkey2,
                                   (const unsigned char *) mbedtls_test_srv_key_ec,
-                                  mbedtls_test_srv_key_ec_len, NULL, 0 ) ) != 0 )
+                                  mbedtls_test_srv_key_ec_len, NULL, 0,
+                                  rng_get, &rng ) ) != 0 )
         {
             mbedtls_printf( " failed\n  !  pk_parse_key2 returned -0x%x\n\n",
                             (unsigned int) -ret );
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index e8241a3..0941458 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -346,7 +346,8 @@
     mbedtls_printf( "  . Loading the private key ..." );
     fflush( stdout );
 
-    ret = mbedtls_pk_parse_keyfile( &key, opt.filename, opt.password );
+    ret = mbedtls_pk_parse_keyfile( &key, opt.filename, opt.password,
+                                    mbedtls_ctr_drbg_random, &ctr_drbg );
 
     if( ret != 0 )
     {
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index 041f459..4b8fba9 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -577,7 +577,7 @@
         fflush( stdout );
 
         ret = mbedtls_pk_parse_keyfile( &loaded_subject_key, opt.subject_key,
-                                 opt.subject_pwd );
+                opt.subject_pwd, mbedtls_ctr_drbg_random, &ctr_drbg );
         if( ret != 0 )
         {
             mbedtls_strerror( ret, buf, 1024 );
@@ -593,7 +593,7 @@
     fflush( stdout );
 
     ret = mbedtls_pk_parse_keyfile( &loaded_issuer_key, opt.issuer_key,
-                             opt.issuer_pwd );
+            opt.issuer_pwd, mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
         mbedtls_strerror( ret, buf, 1024 );
diff --git a/tests/suites/test_suite_pk.function b/tests/suites/test_suite_pk.function
index b46cf05..5ccb072 100644
--- a/tests/suites/test_suite_pk.function
+++ b/tests/suites/test_suite_pk.function
@@ -279,7 +279,8 @@
                  MBEDTLS_ERR_PK_BAD_INPUT_DATA );
 
 #if defined(MBEDTLS_PK_PARSE_C)
-    TEST_ASSERT( mbedtls_pk_parse_key( &pk, NULL, 0, NULL, 1 ) ==
+    TEST_ASSERT( mbedtls_pk_parse_key( &pk, NULL, 0, NULL, 1,
+                                       mbedtls_test_rnd_std_rand, NULL ) ==
                  MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
 
     TEST_ASSERT( mbedtls_pk_parse_public_key( &pk, NULL, 0 ) ==
@@ -296,8 +297,8 @@
     /* For the write tests to be effective, we need a valid key pair. */
     mbedtls_pk_init( &pk );
     TEST_ASSERT( mbedtls_pk_parse_key( &pk,
-                                       key_data->x, key_data->len,
-                                       NULL, 0 ) == 0 );
+                key_data->x, key_data->len, NULL, 0,
+                mbedtls_test_rnd_std_rand, NULL ) == 0 );
 
     TEST_ASSERT( mbedtls_pk_write_key_der( &pk, NULL, 0 ) ==
                  MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
@@ -349,7 +350,9 @@
     mbedtls_pk_init( &alt );
 
     TEST_ASSERT( mbedtls_pk_parse_public_keyfile( &pub, pub_file ) == 0 );
-    TEST_ASSERT( mbedtls_pk_parse_keyfile( &prv, prv_file, NULL ) == 0 );
+    TEST_ASSERT( mbedtls_pk_parse_keyfile( &prv, prv_file, NULL,
+                                           mbedtls_test_rnd_std_rand, NULL )
+                 == 0 );
 
     TEST_ASSERT( mbedtls_pk_check_pair( &pub, &prv,
                                         mbedtls_test_rnd_std_rand, NULL )
diff --git a/tests/suites/test_suite_pkparse.function b/tests/suites/test_suite_pkparse.function
index 4650d33..4c7f3d2 100644
--- a/tests/suites/test_suite_pkparse.function
+++ b/tests/suites/test_suite_pkparse.function
@@ -21,7 +21,8 @@
     if( strcmp( pwd, "NULL" ) == 0 )
         pwd = NULL;
 
-    res = mbedtls_pk_parse_keyfile( &ctx, key_file, pwd );
+    res = mbedtls_pk_parse_keyfile( &ctx, key_file, pwd,
+            mbedtls_test_rnd_std_rand, NULL );
 
     TEST_ASSERT( res == result );
 
@@ -96,7 +97,8 @@
 
     mbedtls_pk_init( &ctx );
 
-    res = mbedtls_pk_parse_keyfile( &ctx, key_file, password );
+    res = mbedtls_pk_parse_keyfile( &ctx, key_file, password,
+            mbedtls_test_rnd_std_rand, NULL );
 
     TEST_ASSERT( res == result );
 
@@ -120,7 +122,8 @@
 
     mbedtls_pk_init( &pk );
 
-    TEST_ASSERT( mbedtls_pk_parse_key( &pk, buf->x, buf->len, NULL, 0 ) == result );
+    TEST_ASSERT( mbedtls_pk_parse_key( &pk, buf->x, buf->len, NULL, 0,
+                        mbedtls_test_rnd_std_rand, NULL ) == result );
 
 exit:
     mbedtls_pk_free( &pk );
diff --git a/tests/suites/test_suite_pkwrite.function b/tests/suites/test_suite_pkwrite.function
index 2bad4ed..d1e029a 100644
--- a/tests/suites/test_suite_pkwrite.function
+++ b/tests/suites/test_suite_pkwrite.function
@@ -63,7 +63,8 @@
     memset( check_buf, 0, sizeof( check_buf ) );
 
     mbedtls_pk_init( &key );
-    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
+    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL,
+                        mbedtls_test_rnd_std_rand, NULL ) == 0 );
 
     ret = mbedtls_pk_write_key_pem( &key, buf, sizeof( buf ));
     TEST_ASSERT( ret == 0 );
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index c555d74..d4aad60 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -800,7 +800,8 @@
 
             ret = mbedtls_pk_parse_key( &( cert->pkey ),
                             (const unsigned char*) mbedtls_test_srv_key_rsa_der,
-                            mbedtls_test_srv_key_rsa_der_len, NULL, 0 );
+                            mbedtls_test_srv_key_rsa_der_len, NULL, 0,
+                            mbedtls_test_rnd_std_rand, NULL );
             TEST_ASSERT( ret == 0 );
         }
         else
@@ -812,7 +813,8 @@
 
             ret = mbedtls_pk_parse_key( &( cert->pkey ),
                             (const unsigned char*) mbedtls_test_srv_key_ec_der,
-                            mbedtls_test_srv_key_ec_der_len, NULL, 0 );
+                            mbedtls_test_srv_key_ec_der_len, NULL, 0,
+                            mbedtls_test_rnd_std_rand, NULL );
             TEST_ASSERT( ret == 0 );
         }
     }
@@ -827,7 +829,8 @@
 
             ret = mbedtls_pk_parse_key( &( cert->pkey ),
                           (const unsigned char *) mbedtls_test_cli_key_rsa_der,
-                          mbedtls_test_cli_key_rsa_der_len, NULL, 0 );
+                          mbedtls_test_cli_key_rsa_der_len, NULL, 0,
+                          mbedtls_test_rnd_std_rand, NULL );
             TEST_ASSERT( ret == 0 );
         }
         else
@@ -839,7 +842,8 @@
 
             ret = mbedtls_pk_parse_key( &( cert->pkey ),
                           (const unsigned char *) mbedtls_test_cli_key_ec_der,
-                          mbedtls_test_cli_key_ec_der_len, NULL, 0 );
+                          mbedtls_test_cli_key_ec_der_len, NULL, 0,
+                          mbedtls_test_rnd_std_rand, NULL );
             TEST_ASSERT( ret == 0 );
         }
     }
diff --git a/tests/suites/test_suite_x509write.function b/tests/suites/test_suite_x509write.function
index 44f846f..c9b7cf9 100644
--- a/tests/suites/test_suite_x509write.function
+++ b/tests/suites/test_suite_x509write.function
@@ -94,7 +94,8 @@
     memset( &rnd_info, 0x2a, sizeof( mbedtls_test_rnd_pseudo_info ) );
 
     mbedtls_pk_init( &key );
-    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
+    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL,
+                        mbedtls_test_rnd_std_rand, NULL ) == 0 );
 
     mbedtls_x509write_csr_init( &req );
     mbedtls_x509write_csr_set_md_alg( &req, md_type );
@@ -163,7 +164,8 @@
     TEST_ASSERT( md_alg_psa != MBEDTLS_MD_NONE );
 
     mbedtls_pk_init( &key );
-    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
+    TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL,
+                        mbedtls_test_rnd_std_rand, NULL ) == 0 );
     TEST_ASSERT( mbedtls_pk_wrap_as_opaque( &key, &key_id, md_alg_psa ) == 0 );
 
     mbedtls_x509write_csr_init( &req );
@@ -225,10 +227,10 @@
     mbedtls_x509write_crt_init( &crt );
 
     TEST_ASSERT( mbedtls_pk_parse_keyfile( &subject_key, subject_key_file,
-                                         subject_pwd ) == 0 );
+                    subject_pwd, mbedtls_test_rnd_std_rand, NULL ) == 0 );
 
     TEST_ASSERT( mbedtls_pk_parse_keyfile( &issuer_key, issuer_key_file,
-                                         issuer_pwd ) == 0 );
+                    issuer_pwd, mbedtls_test_rnd_std_rand, NULL ) == 0 );
 
 #if defined(MBEDTLS_RSA_C)
     /* For RSA PK contexts, create a copy as an alternative RSA context. */