diff --git a/ChangeLog.d/issue4083.txt b/ChangeLog.d/issue4083.txt
new file mode 100644
index 0000000..8457337
--- /dev/null
+++ b/ChangeLog.d/issue4083.txt
@@ -0,0 +1,4 @@
+Removals
+    * Remove the following functions: mbedtls_timing_self_test(),
+      mbedtls_hardclock_poll(), mbedtls_timing_hardclock() and
+      mbedtls_set_alarm(). Fixes #4083.
diff --git a/ChangeLog.d/psa_key_derivation-bad_workflow.txt b/ChangeLog.d/psa_key_derivation-bad_workflow.txt
new file mode 100644
index 0000000..7fd03e6
--- /dev/null
+++ b/ChangeLog.d/psa_key_derivation-bad_workflow.txt
@@ -0,0 +1,3 @@
+Bugfix
+   * Fix PSA_ALG_TLS12_PRF and PSA_ALG_TLS12_PSK_TO_MS being too permissive
+     about missing inputs.
diff --git a/docs/3.0-migration-guide.d/move_part_of_timing_module_out_of_the_library.md b/docs/3.0-migration-guide.d/move_part_of_timing_module_out_of_the_library.md
new file mode 100644
index 0000000..fa61e27
--- /dev/null
+++ b/docs/3.0-migration-guide.d/move_part_of_timing_module_out_of_the_library.md
@@ -0,0 +1,9 @@
+Move part of timing module out of the library
+--
+
+The change affects users who use any of the following functions:
+`mbedtls_timing_self_test()`, `mbedtls_hardclock_poll()`,
+`mbedtls_timing_hardclock()` and `mbedtls_set_alarm()`.
+
+If you were relying on these functions, you'll now need to change to using your
+platform's corresponding functions directly.
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 10370f3..598e59f 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -47,7 +47,6 @@
  *
  * Used in:
  *      library/aria.c
- *      library/timing.c
  *      library/bn_mul.h
  *
  * Required by:
@@ -268,7 +267,7 @@
 /**
  * \def MBEDTLS_TIMING_ALT
  *
- * Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(),
+ * Uncomment to provide your own alternate implementation for
  * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay()
  *
  * Only works if you have MBEDTLS_TIMING_C enabled.
@@ -992,8 +991,7 @@
 /**
  * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
  *
- * Do not add default entropy sources. These are the platform specific
- * or mbedtls_timing_hardclock poll function.
+ * Do not add default entropy sources in mbedtls_entropy_init().
  *
  * This is useful to have more control over the added entropy sources in an
  * application.
diff --git a/include/mbedtls/timing.h b/include/mbedtls/timing.h
index 7669bb9..6ffc812 100644
--- a/include/mbedtls/timing.h
+++ b/include/mbedtls/timing.h
@@ -61,52 +61,10 @@
 #include "timing_alt.h"
 #endif /* MBEDTLS_TIMING_ALT */
 
-extern volatile int mbedtls_timing_alarmed;
-
-/**
- * \brief          Return the CPU cycle counter value
- *
- * \warning        This is only a best effort! Do not rely on this!
- *                 In particular, it is known to be unreliable on virtual
- *                 machines.
- *
- * \note           This value starts at an unspecified origin and
- *                 may wrap around.
- */
-unsigned long mbedtls_timing_hardclock( void );
-
-/**
- * \brief          Return the elapsed time in milliseconds
- *
- * \param val      points to a timer structure
- * \param reset    If 0, query the elapsed time. Otherwise (re)start the timer.
- *
- * \return         Elapsed time since the previous reset in ms. When
- *                 restarting, this is always 0.
- *
- * \note           To initialize a timer, call this function with reset=1.
- *
- *                 Determining the elapsed time and resetting the timer is not
- *                 atomic on all platforms, so after the sequence
- *                 `{ get_timer(1); ...; time1 = get_timer(1); ...; time2 =
- *                 get_timer(0) }` the value time1+time2 is only approximately
- *                 the delay since the first reset.
- */
+/* Internal use */
 unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset );
 
 /**
- * \brief          Setup an alarm clock
- *
- * \param seconds  delay before the "mbedtls_timing_alarmed" flag is set
- *                 (must be >=0)
- *
- * \warning        Only one alarm at a time  is supported. In a threaded
- *                 context, this means one for the whole process, not one per
- *                 thread.
- */
-void mbedtls_set_alarm( int seconds );
-
-/**
  * \brief          Set a pair of delays to watch
  *                 (See \c mbedtls_timing_get_delay().)
  *
@@ -136,15 +94,6 @@
  */
 int mbedtls_timing_get_delay( void *data );
 
-#if defined(MBEDTLS_SELF_TEST)
-/**
- * \brief          Checkup routine
- *
- * \return         0 if successful, or 1 if a test failed
- */
-int mbedtls_timing_self_test( int verbose );
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/library/entropy.c b/library/entropy.c
index f12a239..9e31f84 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -73,11 +73,6 @@
                                 MBEDTLS_ENTROPY_MIN_PLATFORM,
                                 MBEDTLS_ENTROPY_SOURCE_STRONG );
 #endif
-#if defined(MBEDTLS_TIMING_C)
-    mbedtls_entropy_add_source( ctx, mbedtls_hardclock_poll, NULL,
-                                MBEDTLS_ENTROPY_MIN_HARDCLOCK,
-                                MBEDTLS_ENTROPY_SOURCE_WEAK );
-#endif
 #if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
     mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL,
                                 MBEDTLS_ENTROPY_MIN_HARDWARE,
diff --git a/library/entropy_poll.c b/library/entropy_poll.c
index e5d75c5..bccc034 100644
--- a/library/entropy_poll.c
+++ b/library/entropy_poll.c
@@ -211,24 +211,6 @@
 #endif /* _WIN32 && !EFIX64 && !EFI32 */
 #endif /* !MBEDTLS_NO_PLATFORM_ENTROPY */
 
-#if defined(MBEDTLS_TIMING_C)
-int mbedtls_hardclock_poll( void *data,
-                    unsigned char *output, size_t len, size_t *olen )
-{
-    unsigned long timer = mbedtls_timing_hardclock();
-    ((void) data);
-    *olen = 0;
-
-    if( len < sizeof(unsigned long) )
-        return( 0 );
-
-    memcpy( output, &timer, sizeof(unsigned long) );
-    *olen = sizeof(unsigned long);
-
-    return( 0 );
-}
-#endif /* MBEDTLS_TIMING_C */
-
 #if defined(MBEDTLS_ENTROPY_NV_SEED)
 int mbedtls_nv_seed_poll( void *data,
                           unsigned char *output, size_t len, size_t *olen )
diff --git a/library/entropy_poll.h b/library/entropy_poll.h
index 9120fe5..bf26889 100644
--- a/library/entropy_poll.h
+++ b/library/entropy_poll.h
@@ -38,7 +38,6 @@
  * Default thresholds for built-in sources, in bytes
  */
 #define MBEDTLS_ENTROPY_MIN_PLATFORM     32     /**< Minimum for platform source    */
-#define MBEDTLS_ENTROPY_MIN_HARDCLOCK     4     /**< Minimum for mbedtls_timing_hardclock()        */
 #if !defined(MBEDTLS_ENTROPY_MIN_HARDWARE)
 #define MBEDTLS_ENTROPY_MIN_HARDWARE     32     /**< Minimum for the hardware source */
 #endif
@@ -51,14 +50,6 @@
                            unsigned char *output, size_t len, size_t *olen );
 #endif
 
-#if defined(MBEDTLS_TIMING_C)
-/**
- * \brief           mbedtls_timing_hardclock-based entropy poll callback
- */
-int mbedtls_hardclock_poll( void *data,
-                    unsigned char *output, size_t len, size_t *olen );
-#endif
-
 #if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
 /**
  * \brief           Entropy poll callback for a hardware source
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 7921eb2..ba30eb5 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -3730,6 +3730,17 @@
     psa_status_t status;
     uint8_t offset, length;
 
+    switch( tls12_prf->state )
+    {
+        case PSA_TLS12_PRF_STATE_LABEL_SET:
+            tls12_prf->state = PSA_TLS12_PRF_STATE_OUTPUT;
+            break;
+        case PSA_TLS12_PRF_STATE_OUTPUT:
+            break;
+        default:
+            return( PSA_ERROR_BAD_STATE );
+    }
+
     while( output_length != 0 )
     {
         /* Check if we have fully processed the current block. */
diff --git a/library/timing.c b/library/timing.c
index 664fde0..a85ce67 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -19,13 +19,6 @@
 
 #include "common.h"
 
-#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#endif
-
 #if defined(MBEDTLS_TIMING_C)
 
 #include "mbedtls/timing.h"
@@ -38,10 +31,6 @@
 #error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
 #endif
 
-#ifndef asm
-#define asm __asm
-#endif
-
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
 
 #include <windows.h>
@@ -67,174 +56,25 @@
 
 #endif /* _WIN32 && !EFIX64 && !EFI32 */
 
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    ( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__)
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long tsc;
-    __asm   rdtsc
-    __asm   mov  [tsc], eax
-    return( tsc );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          ( _MSC_VER && _M_IX86 ) || __WATCOMC__ */
-
-/* some versions of mingw-64 have 32-bit longs even on x84_64 */
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    defined(__GNUC__) && ( defined(__i386__) || (                       \
-    ( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) )
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long lo, hi;
-    asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
-    return( lo );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && __i386__ */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) )
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long lo, hi;
-    asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
-    return( lo | ( hi << 32 ) );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && ( __amd64__ || __x86_64__ ) */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) )
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long tbl, tbu0, tbu1;
-
-    do
-    {
-        asm volatile( "mftbu %0" : "=r" (tbu0) );
-        asm volatile( "mftb  %0" : "=r" (tbl ) );
-        asm volatile( "mftbu %0" : "=r" (tbu1) );
-    }
-    while( tbu0 != tbu1 );
-
-    return( tbl );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && ( __powerpc__ || __ppc__ ) */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    defined(__GNUC__) && defined(__sparc64__)
-
-#if defined(__OpenBSD__)
-#warning OpenBSD does not allow access to tick register using software version instead
-#else
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long tick;
-    asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) );
-    return( tick );
-}
-#endif /* __OpenBSD__ */
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && __sparc64__ */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
-    defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__)
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long tick;
-    asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" );
-    asm volatile( "mov   %%g1, %0" : "=r" (tick) );
-    return( tick );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && __sparc__ && !__sparc64__ */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&      \
-    defined(__GNUC__) && defined(__alpha__)
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long cc;
-    asm volatile( "rpcc %0" : "=r" (cc) );
-    return( cc & 0xFFFFFFFF );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && __alpha__ */
-
-#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&      \
-    defined(__GNUC__) && defined(__ia64__)
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    unsigned long itc;
-    asm volatile( "mov %0 = ar.itc" : "=r" (itc) );
-    return( itc );
-}
-#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
-          __GNUC__ && __ia64__ */
-
-#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \
-    !defined(EFIX64) && !defined(EFI32)
-
-#define HAVE_HARDCLOCK
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    LARGE_INTEGER offset;
-
-    QueryPerformanceCounter( &offset );
-
-    return( (unsigned long)( offset.QuadPart ) );
-}
-#endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */
-
-#if !defined(HAVE_HARDCLOCK)
-
-#define HAVE_HARDCLOCK
-
-static int hardclock_init = 0;
-static struct timeval tv_init;
-
-unsigned long mbedtls_timing_hardclock( void )
-{
-    struct timeval tv_cur;
-
-    if( hardclock_init == 0 )
-    {
-        gettimeofday( &tv_init, NULL );
-        hardclock_init = 1;
-    }
-
-    gettimeofday( &tv_cur, NULL );
-    return( ( tv_cur.tv_sec  - tv_init.tv_sec  ) * 1000000
-          + ( tv_cur.tv_usec - tv_init.tv_usec ) );
-}
-#endif /* !HAVE_HARDCLOCK */
-
-volatile int mbedtls_timing_alarmed = 0;
-
+/**
+ * \brief          Return the elapsed time in milliseconds
+ *
+ * \warning        May change without notice
+ *
+ * \param val      points to a timer structure
+ * \param reset    If 0, query the elapsed time. Otherwise (re)start the timer.
+ *
+ * \return         Elapsed time since the previous reset in ms. When
+ *                 restarting, this is always 0.
+ *
+ * \note           To initialize a timer, call this function with reset=1.
+ *
+ *                 Determining the elapsed time and resetting the timer is not
+ *                 atomic on all platforms, so after the sequence
+ *                 `{ get_timer(1); ...; time1 = get_timer(1); ...; time2 =
+ *                 get_timer(0) }` the value time1+time2 is only approximately
+ *                 the delay since the first reset.
+ */
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
 
 unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
@@ -258,33 +98,6 @@
     }
 }
 
-/* It's OK to use a global because alarm() is supposed to be global anyway */
-static DWORD alarmMs;
-
-static void TimerProc( void *TimerContext )
-{
-    (void) TimerContext;
-    Sleep( alarmMs );
-    mbedtls_timing_alarmed = 1;
-    /* _endthread will be called implicitly on return
-     * That ensures execution of thread funcition's epilogue */
-}
-
-void mbedtls_set_alarm( int seconds )
-{
-    if( seconds == 0 )
-    {
-        /* No need to create a thread for this simple case.
-         * Also, this shorcut is more reliable at least on MinGW32 */
-        mbedtls_timing_alarmed = 1;
-        return;
-    }
-
-    mbedtls_timing_alarmed = 0;
-    alarmMs = seconds * 1000;
-    (void) _beginthread( TimerProc, 0, NULL );
-}
-
 #else /* _WIN32 && !EFIX64 && !EFI32 */
 
 unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
@@ -307,25 +120,6 @@
     }
 }
 
-static void sighandler( int signum )
-{
-    mbedtls_timing_alarmed = 1;
-    signal( signum, sighandler );
-}
-
-void mbedtls_set_alarm( int seconds )
-{
-    mbedtls_timing_alarmed = 0;
-    signal( SIGALRM, sighandler );
-    alarm( seconds );
-    if( seconds == 0 )
-    {
-        /* alarm(0) cancelled any previous pending alarm, but the
-           handler won't fire, so raise the flag straight away. */
-        mbedtls_timing_alarmed = 1;
-    }
-}
-
 #endif /* _WIN32 && !EFIX64 && !EFI32 */
 
 /*
@@ -365,178 +159,4 @@
 }
 
 #endif /* !MBEDTLS_TIMING_ALT */
-
-#if defined(MBEDTLS_SELF_TEST)
-
-/*
- * Busy-waits for the given number of milliseconds.
- * Used for testing mbedtls_timing_hardclock.
- */
-static void busy_msleep( unsigned long msec )
-{
-    struct mbedtls_timing_hr_time hires;
-    unsigned long i = 0; /* for busy-waiting */
-    volatile unsigned long j; /* to prevent optimisation */
-
-    (void) mbedtls_timing_get_timer( &hires, 1 );
-
-    while( mbedtls_timing_get_timer( &hires, 0 ) < msec )
-        i++;
-
-    j = i;
-    (void) j;
-}
-
-static void print_timers( struct mbedtls_timing_hr_time *hires,
-                          mbedtls_timing_delay_context *ctx )
-{
-#if defined(MBEDTLS_TIMING_ALT)
-    mbedtls_printf( " elapsed(hires)=%lu elapsed(ctx)=?? status(ctx)=%d\n",
-                    mbedtls_timing_get_timer( hires, 0 ),
-                    mbedtls_timing_get_delay( ctx ) );
-#else
-    mbedtls_printf( " elapsed(hires)=%lu elapsed(ctx)=%lu status(ctx)=%d\n",
-                    mbedtls_timing_get_timer( hires, 0 ),
-                    mbedtls_timing_get_timer( &ctx->timer, 0 ),
-                    mbedtls_timing_get_delay( ctx ) );
-#endif
-}
-
-#define FAIL    do                                                      \
-    {                                                                   \
-        if( verbose != 0 )                                              \
-        {                                                               \
-            mbedtls_printf( "failed at line %d\n", __LINE__ );          \
-            mbedtls_printf( " cycles=%lu ratio=%lu millisecs=%lu secs=%lu hardfail=%d a=%lu b=%lu\n", \
-                            cycles, ratio, millisecs, secs, hardfail,   \
-                            (unsigned long) a, (unsigned long) b );     \
-            print_timers( &hires, &ctx );                               \
-        }                                                               \
-        return( 1 );                                                    \
-    } while( 0 )
-
-/*
- * Checkup routine
- *
- * Warning: this is work in progress, some tests may not be reliable enough
- * yet! False positives may happen.
- */
-int mbedtls_timing_self_test( int verbose )
-{
-    unsigned long cycles = 0, ratio = 0;
-    unsigned long millisecs = 0, secs = 0;
-    int hardfail = 0;
-    struct mbedtls_timing_hr_time hires;
-    uint32_t a = 0, b = 0;
-    mbedtls_timing_delay_context ctx;
-
-    if( verbose != 0 )
-        mbedtls_printf( "  TIMING tests note: will take some time!\n" );
-
-    if( verbose != 0 )
-        mbedtls_printf( "  TIMING test #1 (set_alarm / get_timer): " );
-
-    {
-        secs = 1;
-
-        (void) mbedtls_timing_get_timer( &hires, 1 );
-
-        mbedtls_set_alarm( (int) secs );
-        while( !mbedtls_timing_alarmed )
-            ;
-
-        millisecs = mbedtls_timing_get_timer( &hires, 0 );
-
-        /* For some reason on Windows it looks like alarm has an extra delay
-         * (maybe related to creating a new thread). Allow some room here. */
-        if( millisecs < 800 * secs || millisecs > 1200 * secs + 300 )
-            FAIL;
-    }
-
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
-
-    if( verbose != 0 )
-        mbedtls_printf( "  TIMING test #2 (set/get_delay        ): " );
-
-    {
-        a = 800;
-        b = 400;
-        mbedtls_timing_set_delay( &ctx, a, a + b );          /* T = 0 */
-
-        busy_msleep( a - a / 4 );                      /* T = a - a/4 */
-        if( mbedtls_timing_get_delay( &ctx ) != 0 )
-            FAIL;
-
-        busy_msleep( a / 4 + b / 4 );                  /* T = a + b/4 */
-        if( mbedtls_timing_get_delay( &ctx ) != 1 )
-            FAIL;
-
-        busy_msleep( b );                          /* T = a + b + b/4 */
-        if( mbedtls_timing_get_delay( &ctx ) != 2 )
-            FAIL;
-    }
-
-    mbedtls_timing_set_delay( &ctx, 0, 0 );
-    busy_msleep( 200 );
-    if( mbedtls_timing_get_delay( &ctx ) != -1 )
-        FAIL;
-
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
-
-    if( verbose != 0 )
-        mbedtls_printf( "  TIMING test #3 (hardclock / get_timer): " );
-
-    /*
-     * Allow one failure for possible counter wrapping.
-     * On a 4Ghz 32-bit machine the cycle counter wraps about once per second;
-     * since the whole test is about 10ms, it shouldn't happen twice in a row.
-     */
-
-hard_test:
-    if( hardfail > 1 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed (ignored)\n" );
-
-        goto hard_test_done;
-    }
-
-    /* Get a reference ratio cycles/ms */
-    millisecs = 1;
-    cycles = mbedtls_timing_hardclock();
-    busy_msleep( millisecs );
-    cycles = mbedtls_timing_hardclock() - cycles;
-    ratio = cycles / millisecs;
-
-    /* Check that the ratio is mostly constant */
-    for( millisecs = 2; millisecs <= 4; millisecs++ )
-    {
-        cycles = mbedtls_timing_hardclock();
-        busy_msleep( millisecs );
-        cycles = mbedtls_timing_hardclock() - cycles;
-
-        /* Allow variation up to 20% */
-        if( cycles / millisecs < ratio - ratio / 5 ||
-            cycles / millisecs > ratio + ratio / 5 )
-        {
-            hardfail++;
-            goto hard_test;
-        }
-    }
-
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
-
-hard_test_done:
-
-    if( verbose != 0 )
-        mbedtls_printf( "\n" );
-
-    return( 0 );
-}
-
-#endif /* MBEDTLS_SELF_TEST */
-
 #endif /* MBEDTLS_TIMING_C */
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 1c5caa6..ff78274 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -77,10 +77,41 @@
 
 #include "mbedtls/error.h"
 
+#ifndef asm
+#define asm __asm
+#endif
+
+#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
+
+#include <windows.h>
+#include <process.h>
+
+struct _hr_time
+{
+    LARGE_INTEGER start;
+};
+
+#else
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <signal.h>
+#include <time.h>
+
+struct _hr_time
+{
+    struct timeval start;
+};
+
+#endif /* _WIN32 && !EFIX64 && !EFI32 */
+
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
 #include "mbedtls/memory_buffer_alloc.h"
 #endif
 
+static void mbedtls_set_alarm( int seconds );
+
 /*
  * For heap usage estimates, we need an estimate of the overhead per allocated
  * block. ptmalloc2/3 (used in gnu libc for instance) uses 2 size_t per block,
@@ -212,6 +243,226 @@
     }                                                                   \
 } while( 0 )
 
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    ( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__)
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long tsc;
+    __asm   rdtsc
+    __asm   mov  [tsc], eax
+    return( tsc );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          ( _MSC_VER && _M_IX86 ) || __WATCOMC__ */
+
+/* some versions of mingw-64 have 32-bit longs even on x84_64 */
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    defined(__GNUC__) && ( defined(__i386__) || (                       \
+    ( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) )
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long lo, hi;
+    asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
+    return( lo );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && __i386__ */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) )
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long lo, hi;
+    asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
+    return( lo | ( hi << 32 ) );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && ( __amd64__ || __x86_64__ ) */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) )
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long tbl, tbu0, tbu1;
+
+    do
+    {
+        asm volatile( "mftbu %0" : "=r" (tbu0) );
+        asm volatile( "mftb  %0" : "=r" (tbl ) );
+        asm volatile( "mftbu %0" : "=r" (tbu1) );
+    }
+    while( tbu0 != tbu1 );
+
+    return( tbl );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && ( __powerpc__ || __ppc__ ) */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    defined(__GNUC__) && defined(__sparc64__)
+
+#if defined(__OpenBSD__)
+#warning OpenBSD does not allow access to tick register using software version instead
+#else
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long tick;
+    asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) );
+    return( tick );
+}
+#endif /* __OpenBSD__ */
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && __sparc64__ */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&  \
+    defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__)
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long tick;
+    asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" );
+    asm volatile( "mov   %%g1, %0" : "=r" (tick) );
+    return( tick );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && __sparc__ && !__sparc64__ */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&      \
+    defined(__GNUC__) && defined(__alpha__)
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long cc;
+    asm volatile( "rpcc %0" : "=r" (cc) );
+    return( cc & 0xFFFFFFFF );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && __alpha__ */
+
+#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) &&      \
+    defined(__GNUC__) && defined(__ia64__)
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    unsigned long itc;
+    asm volatile( "mov %0 = ar.itc" : "=r" (itc) );
+    return( itc );
+}
+#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
+          __GNUC__ && __ia64__ */
+
+#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \
+    !defined(EFIX64) && !defined(EFI32)
+
+#define HAVE_HARDCLOCK
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    LARGE_INTEGER offset;
+
+    QueryPerformanceCounter( &offset );
+
+    return( (unsigned long)( offset.QuadPart ) );
+}
+#endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */
+
+#if !defined(HAVE_HARDCLOCK)
+
+#define HAVE_HARDCLOCK
+
+static int hardclock_init = 0;
+static struct timeval tv_init;
+
+static unsigned long mbedtls_timing_hardclock( void )
+{
+    struct timeval tv_cur;
+
+    if( hardclock_init == 0 )
+    {
+        gettimeofday( &tv_init, NULL );
+        hardclock_init = 1;
+    }
+
+    gettimeofday( &tv_cur, NULL );
+    return( ( tv_cur.tv_sec  - tv_init.tv_sec  ) * 1000000
+          + ( tv_cur.tv_usec - tv_init.tv_usec ) );
+}
+#endif /* !HAVE_HARDCLOCK */
+
+volatile int mbedtls_timing_alarmed = 0;
+
+#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
+
+/* It's OK to use a global because alarm() is supposed to be global anyway */
+static DWORD alarmMs;
+
+static void TimerProc( void *TimerContext )
+{
+    (void) TimerContext;
+    Sleep( alarmMs );
+    mbedtls_timing_alarmed = 1;
+    /* _endthread will be called implicitly on return
+     * That ensures execution of thread funcition's epilogue */
+}
+
+static void mbedtls_set_alarm( int seconds )
+{
+    if( seconds == 0 )
+    {
+        /* No need to create a thread for this simple case.
+         * Also, this shorcut is more reliable at least on MinGW32 */
+        mbedtls_timing_alarmed = 1;
+        return;
+    }
+
+    mbedtls_timing_alarmed = 0;
+    alarmMs = seconds * 1000;
+    (void) _beginthread( TimerProc, 0, NULL );
+}
+
+#else /* _WIN32 && !EFIX64 && !EFI32 */
+
+static void sighandler( int signum )
+{
+    mbedtls_timing_alarmed = 1;
+    signal( signum, sighandler );
+}
+
+static void mbedtls_set_alarm( int seconds )
+{
+    mbedtls_timing_alarmed = 0;
+    signal( SIGALRM, sighandler );
+    alarm( seconds );
+    if( seconds == 0 )
+    {
+        /* alarm(0) cancelled any previous pending alarm, but the
+           handler won't fire, so raise the flag straight away. */
+        mbedtls_timing_alarmed = 1;
+    }
+}
+
+#endif /* _WIN32 && !EFIX64 && !EFI32 */
+
 static int myrand( void *rng_state, unsigned char *output, size_t len )
 {
     size_t use_len;
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index a3e306c..5e7eddf 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -346,10 +346,6 @@
 #if defined(MBEDTLS_PKCS5_C)
     {"pkcs5", mbedtls_pkcs5_self_test},
 #endif
-/* Slower test after the faster ones */
-#if defined(MBEDTLS_TIMING_C)
-    {"timing", mbedtls_timing_self_test},
-#endif
 /* Heap test comes last */
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
     {"memory_buffer_alloc", mbedtls_memory_buffer_alloc_free_and_self_test},
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 4d9c7b6..b58c486 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -2777,6 +2777,22 @@
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
 
+PSA key derivation: HKDF-SHA-256, good case, omitted salt
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):0:UNUSED:"":UNUSED:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
+PSA key derivation: HKDF-SHA-256, good case, info first
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
+PSA key derivation: HKDF-SHA-256, good case, info after salt
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
+PSA key derivation: HKDF-SHA-256, good case, omitted salt, info first
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
 PSA key derivation: HKDF-SHA-256, good case, key output
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_DERIVE:PSA_SUCCESS
@@ -2811,6 +2827,10 @@
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_RAW_DATA:PSA_ERROR_NOT_PERMITTED
 
+PSA key derivation: HKDF-SHA-256, missing secret, key output
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_RAW_DATA:PSA_ERROR_NOT_PERMITTED
+
 PSA key derivation: HKDF-SHA-256, RAW_DATA key as salt
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_RAW_DATA:"412073616c74":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_DERIVE:PSA_SUCCESS
@@ -2833,14 +2853,94 @@
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_DERIVE:"4120696e666f":PSA_ERROR_INVALID_ARGUMENT:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
 
+PSA key derivation: HKDF-SHA-256, salt after secret
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, missing secret
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, missing info
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate salt step
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate secret step (direct, direct)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate secret step (direct, key)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate secret step (key, direct)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0a0a0a0a":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_NONE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate secret step (key, key)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0a0a0a0a":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate info step (non-consecutive)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, duplicate info step (consecutive)
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, reject label step
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_ERROR_INVALID_ARGUMENT:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: HKDF-SHA-256, reject seed step
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
+derive_input:PSA_ALG_HKDF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_ERROR_INVALID_ARGUMENT:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
 PSA key derivation: TLS 1.2 PRF SHA-256, good case
 depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
 derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_DERIVE:PSA_SUCCESS
 
+PSA key derivation: ECDH with TLS 1.2 PRF SHA-256, good case
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
+PSA key derivation: TLS 1.2 PRF SHA-256, missing label
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
+derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: ECDH with TLS 1.2 PRF SHA-256, missing label
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: TLS 1.2 PRF SHA-256, missing label and secret
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
+derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: ECDH with TLS 1.2 PRF SHA-256, missing label and secret
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: TLS 1.2 PRF SHA-256, no inputs
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
+derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: ECDH with TLS 1.2 PRF SHA-256, no inputs
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)):0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
 PSA key derivation: TLS 1.2 PRF SHA-256, key first
 depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
 derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
 
+PSA key derivation: ECDH with TLS 1.2 PRF SHA-256, key first
+depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
 PSA key derivation: TLS 1.2 PRF SHA-256, label first
 depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
 derive_input:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256):PSA_KEY_DERIVATION_INPUT_LABEL:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_DERIVE:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_SEED:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
@@ -2893,20 +2993,36 @@
 depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
 derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
 
+PSA key derivation: ECDH on P256 with HKDF-SHA256, omitted salt
+depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):0:UNUSED:"":UNUSED:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
+PSA key derivation: ECDH on P256 with HKDF-SHA256, info first
+depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_TYPE_NONE:PSA_SUCCESS
+
 PSA key derivation: ECDH on P256 with HKDF-SHA256, key output
 depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
 derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_TYPE_RAW_DATA:PSA_SUCCESS
 
-PSA key derivation: HKDF invalid state (double generate + read past capacity)
+PSA key derivation: ECDH on P256 with HKDF-SHA256, salt after secret
+depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_DERIVATION_INPUT_INFO:PSA_KEY_TYPE_NONE:"":PSA_ERROR_BAD_STATE:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation: ECDH on P256 with HKDF-SHA256, missing info
+depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:PSA_WANT_ECC_SECP_R1_256
+derive_input:PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256)):PSA_KEY_DERIVATION_INPUT_SALT:PSA_KEY_TYPE_NONE:"":PSA_SUCCESS:PSA_KEY_DERIVATION_INPUT_SECRET:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433":PSA_SUCCESS:0:UNUSED:"":UNUSED:PSA_KEY_TYPE_NONE:PSA_ERROR_BAD_STATE
+
+PSA key derivation over capacity: HKDF
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
-test_derive_invalid_key_derivation_state:PSA_ALG_HKDF(PSA_ALG_SHA_256)
+derive_over_capacity:PSA_ALG_HKDF(PSA_ALG_SHA_256)
 
-PSA key derivation: TLS 1.2 PRF invalid state (double generate + read past capacity)
+PSA key derivation over capacity: TLS 1.2 PRF
 depends_on:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_TLS12_PRF
-test_derive_invalid_key_derivation_state:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)
+derive_over_capacity:PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)
 
-PSA key derivation: invalid state (call read/get_capacity after init and abort)
-test_derive_invalid_key_derivation_tests:
+PSA key derivation: actions without setup
+derive_actions_without_setup:
 
 PSA key derivation: HKDF SHA-256, RFC5869 #1, output 42+0
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 5b5531f..7a774e5 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -16,6 +16,9 @@
 #include "test/psa_crypto_helpers.h"
 #include "test/psa_exercise_key.h"
 
+/* If this comes up, it's a bug in the test code or in the test data. */
+#define UNUSED 0xdeadbeef
+
 /** An invalid export length that will never be set by psa_export_key(). */
 static const size_t INVALID_EXPORT_LENGTH = ~0U;
 
@@ -4027,7 +4030,12 @@
 
     for( i = 0; i < ARRAY_LENGTH( steps ); i++ )
     {
-        if( key_types[i] != PSA_KEY_TYPE_NONE )
+        mbedtls_test_set_step( i );
+        if( steps[i] == 0 )
+        {
+            /* Skip this step */
+        }
+        else if( key_types[i] != PSA_KEY_TYPE_NONE )
         {
             psa_set_key_type( &attributes, key_types[i] );
             PSA_ASSERT( psa_import_key( &attributes,
@@ -4086,7 +4094,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void test_derive_invalid_key_derivation_state( int alg_arg )
+void derive_over_capacity( int alg_arg )
 {
     psa_algorithm_t alg = alg_arg;
     mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
@@ -4137,7 +4145,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void test_derive_invalid_key_derivation_tests( )
+void derive_actions_without_setup( )
 {
     uint8_t output_buffer[16];
     size_t buffer_size = 16;
diff --git a/tests/suites/test_suite_psa_crypto_init.function b/tests/suites/test_suite_psa_crypto_init.function
index d612548..9f72b47 100644
--- a/tests/suites/test_suite_psa_crypto_init.function
+++ b/tests/suites/test_suite_psa_crypto_init.function
@@ -85,12 +85,6 @@
                                     MBEDTLS_ENTROPY_MIN_PLATFORM,
                                     MBEDTLS_ENTROPY_SOURCE_STRONG );
 #endif
-#if defined(MBEDTLS_TIMING_C)
-    if( custom_entropy_sources_mask & ENTROPY_SOURCE_TIMING )
-        mbedtls_entropy_add_source( ctx, mbedtls_hardclock_poll, NULL,
-                                    MBEDTLS_ENTROPY_MIN_HARDCLOCK,
-                                    MBEDTLS_ENTROPY_SOURCE_WEAK );
-#endif
 #if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
     if( custom_entropy_sources_mask & ENTROPY_SOURCE_HARDWARE )
         mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL,
diff --git a/tests/suites/test_suite_timing.data b/tests/suites/test_suite_timing.data
index 2522da1..de89239 100644
--- a/tests/suites/test_suite_timing.data
+++ b/tests/suites/test_suite_timing.data
@@ -1,15 +1,6 @@
-Timing: hardclock
-timing_hardclock:
-
 Timing: get timer
 timing_get_timer:
 
-Timing: set alarm with no delay
-timing_set_alarm:0:
-
-Timing: set alarm with 1s delay
-timing_set_alarm:1:
-
 Timing: delay 0ms
 timing_delay:0:
 
diff --git a/tests/suites/test_suite_timing.function b/tests/suites/test_suite_timing.function
index 74dc823..3483d85 100644
--- a/tests/suites/test_suite_timing.function
+++ b/tests/suites/test_suite_timing.function
@@ -17,15 +17,6 @@
  */
 
 /* BEGIN_CASE */
-void timing_hardclock( )
-{
-    (void) mbedtls_timing_hardclock();
-    /* This goto is added to avoid warnings from the generated code. */
-    goto exit;
-}
-/* END_CASE */
-
-/* BEGIN_CASE */
 void timing_get_timer( )
 {
     struct mbedtls_timing_hr_time time;
@@ -37,23 +28,6 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void timing_set_alarm( int seconds )
-{
-    if( seconds == 0 )
-    {
-        mbedtls_set_alarm( seconds );
-        TEST_ASSERT( mbedtls_timing_alarmed == 1 );
-    }
-    else
-    {
-        mbedtls_set_alarm( seconds );
-        TEST_ASSERT( mbedtls_timing_alarmed == 0 ||
-                     mbedtls_timing_alarmed == 1 );
-    }
-}
-/* END_CASE */
-
-/* BEGIN_CASE */
 void timing_delay( int fin_ms )
 {
     mbedtls_timing_delay_context ctx;