diff --git a/ChangeLog.d/programs_psa_fix.txt b/ChangeLog.d/programs_psa_fix.txt
new file mode 100644
index 0000000..fe2099e
--- /dev/null
+++ b/ChangeLog.d/programs_psa_fix.txt
@@ -0,0 +1,3 @@
+Bugfix
+   * Fix missing PSA initialization in sample programs when
+     MBEDTLS_USE_PSA_CRYPTO is enabled.
diff --git a/programs/fuzz/fuzz_client.c b/programs/fuzz/fuzz_client.c
index 56a5efe..d4e1d74 100644
--- a/programs/fuzz/fuzz_client.c
+++ b/programs/fuzz/fuzz_client.c
@@ -78,6 +78,13 @@
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_entropy_init(&entropy);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
         goto exit;
@@ -175,6 +182,9 @@
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ssl_free(&ssl);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_dtlsclient.c b/programs/fuzz/fuzz_dtlsclient.c
index a58f6f4..3659026 100644
--- a/programs/fuzz/fuzz_dtlsclient.c
+++ b/programs/fuzz/fuzz_dtlsclient.c
@@ -61,6 +61,13 @@
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_entropy_init(&entropy);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     srand(1);
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
@@ -119,6 +126,9 @@
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ssl_free(&ssl);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_dtlsserver.c b/programs/fuzz/fuzz_dtlsserver.c
index cdd69c0..1632e9d 100644
--- a/programs/fuzz/fuzz_dtlsserver.c
+++ b/programs/fuzz/fuzz_dtlsserver.c
@@ -50,6 +50,20 @@
 
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_entropy_init(&entropy);
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    mbedtls_x509_crt_init(&srvcert);
+    mbedtls_pk_init(&pkey);
+#endif
+    mbedtls_ssl_init(&ssl);
+    mbedtls_ssl_config_init(&conf);
+    mbedtls_ssl_cookie_init(&cookie_ctx);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
@@ -58,8 +72,7 @@
 
     if (initialized == 0) {
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
-        mbedtls_x509_crt_init(&srvcert);
-        mbedtls_pk_init(&pkey);
+
         if (mbedtls_x509_crt_parse(&srvcert, (const unsigned char *) mbedtls_test_srv_crt,
                                    mbedtls_test_srv_crt_len) != 0) {
             return 1;
@@ -78,9 +91,6 @@
 
         initialized = 1;
     }
-    mbedtls_ssl_init(&ssl);
-    mbedtls_ssl_config_init(&conf);
-    mbedtls_ssl_cookie_init(&cookie_ctx);
 
     if (mbedtls_ssl_config_defaults(&conf,
                                     MBEDTLS_SSL_IS_SERVER,
@@ -154,9 +164,16 @@
 exit:
     mbedtls_ssl_cookie_free(&cookie_ctx);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    mbedtls_pk_free(&pkey);
+    mbedtls_x509_crt_free(&srvcert);
+#endif
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ssl_free(&ssl);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_privkey.c b/programs/fuzz/fuzz_privkey.c
index 39c23e2..ce75624 100644
--- a/programs/fuzz/fuzz_privkey.c
+++ b/programs/fuzz/fuzz_privkey.c
@@ -30,13 +30,20 @@
 
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_entropy_init(&entropy);
+    mbedtls_pk_init(&pk);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
-        return 1;
+        goto exit;
     }
 
-    mbedtls_pk_init(&pk);
     ret = mbedtls_pk_parse_key(&pk, Data, Size, NULL, 0,
                                dummy_random, &ctr_drbg);
     if (ret == 0) {
@@ -83,7 +90,13 @@
             abort();
         }
     }
+exit:
+    mbedtls_entropy_free(&entropy);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_pk_free(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 #else
     (void) Data;
     (void) Size;
diff --git a/programs/fuzz/fuzz_pubkey.c b/programs/fuzz/fuzz_pubkey.c
index 7f5e4aa..9203b4e 100644
--- a/programs/fuzz/fuzz_pubkey.c
+++ b/programs/fuzz/fuzz_pubkey.c
@@ -11,6 +11,12 @@
     mbedtls_pk_context pk;
 
     mbedtls_pk_init(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     ret = mbedtls_pk_parse_public_key(&pk, Data, Size);
     if (ret == 0) {
 #if defined(MBEDTLS_RSA_C)
@@ -66,6 +72,10 @@
             abort();
         }
     }
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+exit:
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_pk_free(&pk);
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_server.c b/programs/fuzz/fuzz_server.c
index cd021e1..e767859 100644
--- a/programs/fuzz/fuzz_server.c
+++ b/programs/fuzz/fuzz_server.c
@@ -58,6 +58,21 @@
 
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_entropy_init(&entropy);
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    mbedtls_x509_crt_init(&srvcert);
+    mbedtls_pk_init(&pkey);
+#endif
+    mbedtls_ssl_init(&ssl);
+    mbedtls_ssl_config_init(&conf);
+#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_TICKET_C)
+    mbedtls_ssl_ticket_init(&ticket_ctx);
+#endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
@@ -67,8 +82,6 @@
     if (initialized == 0) {
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
-        mbedtls_x509_crt_init(&srvcert);
-        mbedtls_pk_init(&pkey);
         if (mbedtls_x509_crt_parse(&srvcert, (const unsigned char *) mbedtls_test_srv_crt,
                                    mbedtls_test_srv_crt_len) != 0) {
             return 1;
@@ -92,11 +105,6 @@
 
         initialized = 1;
     }
-    mbedtls_ssl_init(&ssl);
-    mbedtls_ssl_config_init(&conf);
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_TICKET_C)
-    mbedtls_ssl_ticket_init(&ticket_ctx);
-#endif
 
     if (mbedtls_ssl_config_defaults(&conf,
                                     MBEDTLS_SSL_IS_SERVER,
@@ -193,8 +201,14 @@
     mbedtls_entropy_free(&entropy);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_ssl_config_free(&conf);
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    mbedtls_x509_crt_free(&srvcert);
+    mbedtls_pk_free(&pkey);
+#endif
     mbedtls_ssl_free(&ssl);
-
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif
 #else
     (void) Data;
     (void) Size;
diff --git a/programs/fuzz/fuzz_x509crl.c b/programs/fuzz/fuzz_x509crl.c
index 6ff0c05..313540d 100644
--- a/programs/fuzz/fuzz_x509crl.c
+++ b/programs/fuzz/fuzz_x509crl.c
@@ -11,6 +11,12 @@
     unsigned char buf[4096];
 
     mbedtls_x509_crl_init(&crl);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     ret = mbedtls_x509_crl_parse(&crl, Data, Size);
 #if !defined(MBEDTLS_X509_REMOVE_INFO)
     if (ret == 0) {
@@ -20,6 +26,11 @@
     ((void) ret);
     ((void) buf);
 #endif /* !MBEDTLS_X509_REMOVE_INFO */
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+exit:
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_x509_crl_free(&crl);
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_x509crt.c b/programs/fuzz/fuzz_x509crt.c
index 858c1ff..8442090 100644
--- a/programs/fuzz/fuzz_x509crt.c
+++ b/programs/fuzz/fuzz_x509crt.c
@@ -11,6 +11,12 @@
     unsigned char buf[4096];
 
     mbedtls_x509_crt_init(&crt);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     ret = mbedtls_x509_crt_parse(&crt, Data, Size);
 #if !defined(MBEDTLS_X509_REMOVE_INFO)
     if (ret == 0) {
@@ -20,6 +26,11 @@
     ((void) ret);
     ((void) buf);
 #endif /* !MBEDTLS_X509_REMOVE_INFO */
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+exit:
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_x509_crt_free(&crt);
 #else
     (void) Data;
diff --git a/programs/fuzz/fuzz_x509csr.c b/programs/fuzz/fuzz_x509csr.c
index 39fb4cb..395d3c2 100644
--- a/programs/fuzz/fuzz_x509csr.c
+++ b/programs/fuzz/fuzz_x509csr.c
@@ -11,6 +11,12 @@
     unsigned char buf[4096];
 
     mbedtls_x509_csr_init(&csr);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     ret = mbedtls_x509_csr_parse(&csr, Data, Size);
 #if !defined(MBEDTLS_X509_REMOVE_INFO)
     if (ret == 0) {
@@ -20,6 +26,11 @@
     ((void) ret);
     ((void) buf);
 #endif /* !MBEDTLS_X509_REMOVE_INFO */
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+exit:
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_x509_csr_free(&csr);
 #else
     (void) Data;
diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index 029558d..9bee275 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -200,6 +200,15 @@
     mbedtls_ctr_drbg_init(&ctr_drbg);
     memset(buf, 0, sizeof(buf));
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc < 2) {
 usage:
         mbedtls_printf(USAGE);
@@ -407,6 +416,9 @@
     mbedtls_pk_free(&key);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/pkey/key_app.c b/programs/pkey/key_app.c
index c80dcd0..cd16e33 100644
--- a/programs/pkey/key_app.c
+++ b/programs/pkey/key_app.c
@@ -99,6 +99,15 @@
     mbedtls_pk_init(&pk);
     memset(buf, 0, sizeof(buf));
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto cleanup;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     mbedtls_mpi_init(&N); mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
     mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP);
     mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP);
@@ -305,8 +314,10 @@
 
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
-
     mbedtls_pk_free(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_mpi_free(&N); mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
     mbedtls_mpi_free(&D); mbedtls_mpi_free(&E); mbedtls_mpi_free(&DP);
     mbedtls_mpi_free(&DQ); mbedtls_mpi_free(&QP);
diff --git a/programs/pkey/key_app_writer.c b/programs/pkey/key_app_writer.c
index 862c93f..e8f3e85 100644
--- a/programs/pkey/key_app_writer.c
+++ b/programs/pkey/key_app_writer.c
@@ -216,6 +216,15 @@
     memset(buf, 0, sizeof(buf));
 #endif
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     mbedtls_mpi_init(&N); mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
     mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP);
     mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP);
@@ -422,6 +431,9 @@
 
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/pkey/pk_decrypt.c b/programs/pkey/pk_decrypt.c
index 8862636..f60c946 100644
--- a/programs/pkey/pk_decrypt.c
+++ b/programs/pkey/pk_decrypt.c
@@ -67,6 +67,15 @@
 
     memset(result, 0, sizeof(result));
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 2) {
         mbedtls_printf("usage: mbedtls_pk_decrypt <key_file>\n");
 
@@ -139,6 +148,9 @@
     mbedtls_pk_free(&pk);
     mbedtls_entropy_free(&entropy);
     mbedtls_ctr_drbg_free(&ctr_drbg);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_ERROR_C)
     if (exit_code != MBEDTLS_EXIT_SUCCESS) {
diff --git a/programs/pkey/pk_encrypt.c b/programs/pkey/pk_encrypt.c
index eab3f08..04e5cc7 100644
--- a/programs/pkey/pk_encrypt.c
+++ b/programs/pkey/pk_encrypt.c
@@ -63,6 +63,15 @@
     mbedtls_entropy_init(&entropy);
     mbedtls_pk_init(&pk);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 3) {
         mbedtls_printf("usage: mbedtls_pk_encrypt <key_file> <string of max 100 characters>\n");
 
@@ -140,6 +149,9 @@
     mbedtls_pk_free(&pk);
     mbedtls_entropy_free(&entropy);
     mbedtls_ctr_drbg_free(&ctr_drbg);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_ERROR_C)
     if (exit_code != MBEDTLS_EXIT_SUCCESS) {
diff --git a/programs/pkey/pk_sign.c b/programs/pkey/pk_sign.c
index 82cb6a1..57bd796 100644
--- a/programs/pkey/pk_sign.c
+++ b/programs/pkey/pk_sign.c
@@ -63,6 +63,15 @@
     mbedtls_ctr_drbg_init(&ctr_drbg);
     mbedtls_pk_init(&pk);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 3) {
         mbedtls_printf("usage: mbedtls_pk_sign <key_file> <filename>\n");
 
@@ -140,6 +149,9 @@
     mbedtls_pk_free(&pk);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_ERROR_C)
     if (exit_code != MBEDTLS_EXIT_SUCCESS) {
diff --git a/programs/pkey/pk_verify.c b/programs/pkey/pk_verify.c
index 0c549e0..bca985b 100644
--- a/programs/pkey/pk_verify.c
+++ b/programs/pkey/pk_verify.c
@@ -55,6 +55,15 @@
 
     mbedtls_pk_init(&pk);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 3) {
         mbedtls_printf("usage: mbedtls_pk_verify <key_file> <filename>\n");
 
@@ -114,6 +123,9 @@
 
 exit:
     mbedtls_pk_free(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_ERROR_C)
     if (exit_code != MBEDTLS_EXIT_SUCCESS) {
diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index 03882cd..999669e 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -64,6 +64,15 @@
     mbedtls_pk_init(&pk);
     mbedtls_ctr_drbg_init(&ctr_drbg);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 3) {
         mbedtls_printf("usage: rsa_sign_pss <key_file> <filename>\n");
 
@@ -153,6 +162,9 @@
     mbedtls_pk_free(&pk);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/pkey/rsa_verify_pss.c b/programs/pkey/rsa_verify_pss.c
index e21e927..8a1fb59 100644
--- a/programs/pkey/rsa_verify_pss.c
+++ b/programs/pkey/rsa_verify_pss.c
@@ -58,6 +58,15 @@
 
     mbedtls_pk_init(&pk);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc != 3) {
         mbedtls_printf("usage: rsa_verify_pss <key_file> <filename>\n");
 
@@ -129,6 +138,9 @@
 
 exit:
     mbedtls_pk_free(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/ssl/dtls_client.c b/programs/ssl/dtls_client.c
index 44a135f..e47715c 100644
--- a/programs/ssl/dtls_client.c
+++ b/programs/ssl/dtls_client.c
@@ -109,11 +109,21 @@
     mbedtls_ssl_config_init(&conf);
     mbedtls_x509_crt_init(&cacert);
     mbedtls_ctr_drbg_init(&ctr_drbg);
+    mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_printf("\n  . Seeding the random number generator...");
     fflush(stdout);
 
-    mbedtls_entropy_init(&entropy);
     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                                      (const unsigned char *) pers,
                                      strlen(pers))) != 0) {
@@ -324,12 +334,14 @@
 #endif
 
     mbedtls_net_free(&server_fd);
-
     mbedtls_x509_crt_free(&cacert);
     mbedtls_ssl_free(&ssl);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     /* Shell can not handle large exit numbers -> 1 for errors */
     if (ret < 0) {
diff --git a/programs/ssl/dtls_server.c b/programs/ssl/dtls_server.c
index 6f8c841..f218130 100644
--- a/programs/ssl/dtls_server.c
+++ b/programs/ssl/dtls_server.c
@@ -119,6 +119,16 @@
     mbedtls_entropy_init(&entropy);
     mbedtls_ctr_drbg_init(&ctr_drbg);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
 #if defined(MBEDTLS_DEBUG_C)
     mbedtls_debug_set_threshold(DEBUG_LEVEL);
 #endif
@@ -394,6 +404,9 @@
 #endif
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     /* Shell can not handle large exit numbers -> 1 for errors */
     if (ret < 0) {
diff --git a/programs/ssl/mini_client.c b/programs/ssl/mini_client.c
index 6dbbc6d..e8f4797 100644
--- a/programs/ssl/mini_client.c
+++ b/programs/ssl/mini_client.c
@@ -175,8 +175,16 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
     mbedtls_x509_crt_init(&ca);
 #endif
-
     mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                               (const unsigned char *) pers, strlen(pers)) != 0) {
         ret = ctr_drbg_seed_failed;
@@ -262,7 +270,6 @@
 
 exit:
     mbedtls_net_free(&server_fd);
-
     mbedtls_ssl_free(&ssl);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ctr_drbg_free(&ctr_drbg);
@@ -270,6 +277,9 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
     mbedtls_x509_crt_free(&ca);
 #endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(ret);
 }
diff --git a/programs/ssl/ssl_client1.c b/programs/ssl/ssl_client1.c
index ea96a4d..259b8f9 100644
--- a/programs/ssl/ssl_client1.c
+++ b/programs/ssl/ssl_client1.c
@@ -91,11 +91,21 @@
     mbedtls_ssl_config_init(&conf);
     mbedtls_x509_crt_init(&cacert);
     mbedtls_ctr_drbg_init(&ctr_drbg);
+    mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_printf("\n  . Seeding the random number generator...");
     fflush(stdout);
 
-    mbedtls_entropy_init(&entropy);
+
     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                                      (const unsigned char *) pers,
                                      strlen(pers))) != 0) {
@@ -274,12 +284,14 @@
 #endif
 
     mbedtls_net_free(&server_fd);
-
     mbedtls_x509_crt_free(&cacert);
     mbedtls_ssl_free(&ssl);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/ssl/ssl_context_info.c b/programs/ssl/ssl_context_info.c
index 0ba0d2c..a5f0650 100644
--- a/programs/ssl/ssl_context_info.c
+++ b/programs/ssl/ssl_context_info.c
@@ -21,6 +21,7 @@
 
 #include "mbedtls/build_info.h"
 #include "mbedtls/debug.h"
+#include "mbedtls/platform.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -933,6 +934,15 @@
     size_t ssl_max_len = SSL_INIT_LEN;
     size_t ssl_len = 0;
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     /* The 'b64_file' is opened when parsing arguments to check that the
      * file name is correct */
     parse_arguments(argc, argv);
@@ -1001,6 +1011,10 @@
         printf("Finished. No valid base64 code found\n");
     }
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     return 0;
 }
 
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
index 7ee880d..4777ee0 100644
--- a/programs/ssl/ssl_fork_server.c
+++ b/programs/ssl/ssl_fork_server.c
@@ -105,6 +105,15 @@
     mbedtls_x509_crt_init(&srvcert);
     mbedtls_ctr_drbg_init(&ctr_drbg);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     signal(SIGCHLD, SIG_IGN);
 
     /*
@@ -366,13 +375,15 @@
 exit:
     mbedtls_net_free(&client_fd);
     mbedtls_net_free(&listen_fd);
-
     mbedtls_x509_crt_free(&srvcert);
     mbedtls_pk_free(&pkey);
     mbedtls_ssl_free(&ssl);
     mbedtls_ssl_config_free(&conf);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 3b040aa..fb6f371 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -369,6 +369,16 @@
     mbedtls_x509_crt_init(&clicert);
     mbedtls_pk_init(&pkey);
     mbedtls_ctr_drbg_init(&ctr_drbg);
+    mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     if (argc < 2) {
 usage:
@@ -458,7 +468,6 @@
     mbedtls_printf("\n  . Seeding the random number generator...");
     fflush(stdout);
 
-    mbedtls_entropy_init(&entropy);
     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                                      (const unsigned char *) pers,
                                      strlen(pers))) != 0) {
@@ -796,6 +805,9 @@
     mbedtls_ssl_config_free(&conf);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/ssl/ssl_pthread_server.c b/programs/ssl/ssl_pthread_server.c
index 2b3baff..9416c3c 100644
--- a/programs/ssl/ssl_pthread_server.c
+++ b/programs/ssl/ssl_pthread_server.c
@@ -332,6 +332,16 @@
      */
     mbedtls_entropy_init(&entropy);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     /*
      * 1a. Seed the random number generator
      */
@@ -473,14 +483,14 @@
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
     mbedtls_ssl_config_free(&conf);
-
     mbedtls_net_free(&listen_fd);
-
     mbedtls_mutex_free(&debug_mutex);
-
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
     mbedtls_memory_buffer_alloc_free();
 #endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(ret);
 }
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index 7dabda8..bb49155 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -104,6 +104,16 @@
     mbedtls_entropy_init(&entropy);
     mbedtls_ctr_drbg_init(&ctr_drbg);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
 #if defined(MBEDTLS_DEBUG_C)
     mbedtls_debug_set_threshold(DEBUG_LEVEL);
 #endif
@@ -343,7 +353,6 @@
 
     mbedtls_net_free(&client_fd);
     mbedtls_net_free(&listen_fd);
-
     mbedtls_x509_crt_free(&srvcert);
     mbedtls_pk_free(&pkey);
     mbedtls_ssl_free(&ssl);
@@ -353,6 +362,9 @@
 #endif
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(ret);
 }
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index a9656c6..51a79ec 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -153,6 +153,7 @@
     mbedtls_ssl_init(&ssl);
     mbedtls_ssl_config_init(&conf);
     mbedtls_x509_crt_init(&cacert);
+    mbedtls_entropy_init(&entropy);
 #if defined(MBEDTLS_X509_CRL_PARSE_C)
     mbedtls_x509_crl_init(&cacrl);
 #else
@@ -161,6 +162,15 @@
     memset(&cacrl, 0, sizeof(mbedtls_x509_crl));
 #endif
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc < 2) {
 usage:
         mbedtls_printf(USAGE);
@@ -338,7 +348,6 @@
         mbedtls_printf("\n  . Seeding the random number generator...");
         fflush(stdout);
 
-        mbedtls_entropy_init(&entropy);
         if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                                          (const unsigned char *) pers,
                                          strlen(pers))) != 0) {
@@ -448,6 +457,9 @@
 #endif
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index 396aaf3..1772f87 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -179,6 +179,16 @@
     mbedtls_pk_init(&key);
     mbedtls_ctr_drbg_init(&ctr_drbg);
     memset(buf, 0, sizeof(buf));
+    mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     if (argc < 2) {
 usage:
@@ -388,7 +398,6 @@
     mbedtls_printf("  . Seeding the random number generator...");
     fflush(stdout);
 
-    mbedtls_entropy_init(&entropy);
     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
                                      (const unsigned char *) pers,
                                      strlen(pers))) != 0) {
@@ -460,6 +469,9 @@
     mbedtls_pk_free(&key);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     cur = opt.san_list;
     while (cur != NULL) {
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index a822684..51b09f3 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -330,6 +330,15 @@
     memset(buf, 0, sizeof(buf));
     memset(serial, 0, sizeof(serial));
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc < 2) {
 usage:
         mbedtls_printf(USAGE);
@@ -885,6 +894,9 @@
     mbedtls_pk_free(&loaded_issuer_key);
     mbedtls_ctr_drbg_free(&ctr_drbg);
     mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/x509/crl_app.c b/programs/x509/crl_app.c
index d74a488..6c671ff 100644
--- a/programs/x509/crl_app.c
+++ b/programs/x509/crl_app.c
@@ -70,6 +70,15 @@
      */
     mbedtls_x509_crl_init(&crl);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc < 2) {
 usage:
         mbedtls_printf(USAGE);
@@ -125,6 +134,9 @@
 
 exit:
     mbedtls_x509_crl_free(&crl);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }
diff --git a/programs/x509/load_roots.c b/programs/x509/load_roots.c
index 237bd7c..d024e98 100644
--- a/programs/x509/load_roots.c
+++ b/programs/x509/load_roots.c
@@ -123,6 +123,15 @@
     struct mbedtls_timing_hr_time timer;
     unsigned long ms;
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc <= 1) {
         mbedtls_printf(USAGE);
         goto exit;
@@ -187,6 +196,9 @@
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     mbedtls_exit(exit_code);
 }
 #endif /* necessary configuration */
diff --git a/programs/x509/req_app.c b/programs/x509/req_app.c
index 83e2546..64b9f0b 100644
--- a/programs/x509/req_app.c
+++ b/programs/x509/req_app.c
@@ -70,6 +70,15 @@
      */
     mbedtls_x509_csr_init(&csr);
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+                        (int) status);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
     if (argc < 2) {
 usage:
         mbedtls_printf(USAGE);
@@ -125,6 +134,9 @@
 
 exit:
     mbedtls_x509_csr_free(&csr);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_exit(exit_code);
 }