diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index 0c2fa141..85b2b17 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -428,21 +428,23 @@
 	$(FAKETIME) '2015-09-01 14:08:43' $(OPENSSL) req -x509 -new -subj "/C=UK/O=mbed TLS/CN=mbed TLS Test intermediate CA 3" -set_serial 77 -config $(test_ca_config_file) -extensions noext_ca -days 3650 -sha256 -key $< -out $@
 all_final += server5-ss-forgeca.crt
 
-server5-othername.crt: server5.key
-	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions othername_san -days 3650 -sha256 -key $< -out $@
+server5-othername.crt.der: server5.key
+	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions othername_san -days 3650 -sha256 -key $< -outform der -out $@
 
-server5-nonprintable_othername.crt: server5.key
-	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS non-printable othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions nonprintable_othername_san -days 3650 -sha256 -key $< -out $@
+server5-nonprintable_othername.crt.der: server5.key
+	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS non-printable othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions nonprintable_othername_san -days 3650 -sha256 -key $< -outform der -out $@
 
-server5-unsupported_othername.crt: server5.key
-	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS unsupported othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions unsupported_othername_san -days 3650 -sha256 -key $< -out $@
+server5-unsupported_othername.crt.der: server5.key
+	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS unsupported othername SAN" -set_serial 77 -config $(test_ca_config_file) -extensions unsupported_othername_san -days 3650 -sha256 -key $< -outform der -out $@
 
-server5-fan.crt: server5.key
-	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS FAN" -set_serial 77 -config $(test_ca_config_file) -extensions fan_cert -days 3650 -sha256 -key server5.key -out $@
+server5-fan.crt.der: server5.key
+	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS FAN" -set_serial 77 -config $(test_ca_config_file) -extensions fan_cert -days 3650 -sha256 -key server5.key -outform der -out $@
 
 server5-tricky-ip-san.crt.der: server5.key
 	$(OPENSSL) req -x509 -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS Tricky IP SAN" -set_serial 77 -config $(test_ca_config_file) -extensions tricky_ip_san -days 3650 -sha256 -key server5.key -outform der -out $@
 
+all_final += server5-tricky-ip-san.crt.der
+
 # malformed IP length
 server5-tricky-ip-san-malformed-len.crt.der: server5-tricky-ip-san.crt.der
 	hexdump -ve '1/1 "%.2X"' $< | sed "s/87046162636487106162/87056162636487106162/" | xxd -r -p > $@
@@ -485,8 +487,6 @@
 server5-second-directoryname-oid-malformed.crt.der: server5-two-directorynames.crt.der
 	hexdump -ve '1/1 "%.2X"' $< | sed "s/0355040A0C0A4D414C464F524D5F4D45/1555040A0C0A4D414C464F524D5F4D45/" | xxd -r -p > $@
 
-all_final += server5-tricky-ip-san.crt
-
 rsa_single_san_uri.crt.der: rsa_single_san_uri.key
 	$(OPENSSL) req -x509 -outform der -nodes -days 7300 -newkey rsa:2048 -key $< -out $@ -addext "subjectAltName = URI:urn:example.com:5ff40f78-9210-494f-8206-c2c082f0609c" -extensions 'v3_req' -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS URI SAN"
 
diff --git a/tests/data_files/parse_input/server5-fan.crt b/tests/data_files/parse_input/server5-fan.crt
deleted file mode 100644
index dc1eb38..0000000
--- a/tests/data_files/parse_input/server5-fan.crt
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBdTCCARugAwIBAgIBTTAKBggqhkjOPQQDAjA3MQswCQYDVQQGEwJVSzERMA8G
-A1UECgwITWJlZCBUTFMxFTATBgNVBAMMDE1iZWQgVExTIEZBTjAeFw0xOTAzMjUw
-OTAzNDZaFw0yOTAzMjIwOTAzNDZaMDcxCzAJBgNVBAYTAlVLMREwDwYDVQQKDAhN
-YmVkIFRMUzEVMBMGA1UEAwwMTWJlZCBUTFMgRkFOMFkwEwYHKoZIzj0CAQYIKoZI
-zj0DAQcDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/
-6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/6MYMBYwFAYDVR0lBA0wCwYJKwYBBAGC
-5CUBMAoGCCqGSM49BAMCA0gAMEUCIQDp/Q5FaVy3YNeJflQKLGycQZoH6V3FQnLq
-ERUCeimLIAIgdyiA4KdHxkpQhC1L1KfmxG8YJqu31FBjmNw00Sv8J9k=
------END CERTIFICATE-----
diff --git a/tests/data_files/parse_input/server5-fan.crt.der b/tests/data_files/parse_input/server5-fan.crt.der
new file mode 100644
index 0000000..db4e5bd
--- /dev/null
+++ b/tests/data_files/parse_input/server5-fan.crt.der
Binary files differ
diff --git a/tests/data_files/parse_input/server5-nonprintable_othername.crt b/tests/data_files/parse_input/server5-nonprintable_othername.crt
deleted file mode 100644
index 9470bbe..0000000
--- a/tests/data_files/parse_input/server5-nonprintable_othername.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBwTCCAWagAwIBAgIBTTAKBggqhkjOPQQDAjBPMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwITWJlZCBUTFMxLTArBgNVBAMMJE1iZWQgVExTIG5vbi1wcmludGFibGUg
-b3RoZXJuYW1lIFNBTjAeFw0yMjA5MDYxNTU2NDdaFw0zMjA5MDMxNTU2NDdaME8x
-CzAJBgNVBAYTAlVLMREwDwYDVQQKDAhNYmVkIFRMUzEtMCsGA1UEAwwkTWJlZCBU
-TFMgbm9uLXByaW50YWJsZSBvdGhlcm5hbWUgU0FOMFkwEwYHKoZIzj0CAQYIKoZI
-zj0DAQcDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/
-6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/6MzMDEwLwYDVR0RBCgwJqAkBggrBgEF
-BQcIBKAYMBYGBysGAQQBEQMECzEyM4CBAIGAMzIxMAoGCCqGSM49BAMCA0kAMEYC
-IQDATir07PTj5gtf+HAyI+nd27AH9+bdaWdOI2t2bAwUWgIhAO7kvdcsa++yfJdT
-3vnWdvcHRIAdXA0kh+mcBMaXk9B0
------END CERTIFICATE-----
diff --git a/tests/data_files/parse_input/server5-nonprintable_othername.crt.der b/tests/data_files/parse_input/server5-nonprintable_othername.crt.der
new file mode 100644
index 0000000..dd0fc7e
--- /dev/null
+++ b/tests/data_files/parse_input/server5-nonprintable_othername.crt.der
Binary files differ
diff --git a/tests/data_files/parse_input/server5-othername.crt b/tests/data_files/parse_input/server5-othername.crt
deleted file mode 100644
index 3be1a77..0000000
--- a/tests/data_files/parse_input/server5-othername.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBnzCCAUWgAwIBAgIBTTAKBggqhkjOPQQDAjBBMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwITWJlZCBUTFMxHzAdBgNVBAMMFk1iZWQgVExTIG90aGVybmFtZSBTQU4w
-HhcNMTkwMzI0MDkwNjAyWhcNMjkwMzIxMDkwNjAyWjBBMQswCQYDVQQGEwJVSzER
-MA8GA1UECgwITWJlZCBUTFMxHzAdBgNVBAMMFk1iZWQgVExTIG90aGVybmFtZSBT
-QU4wWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ3zFbZdgkeWnI+x1kt/yBu7nz5
-BpF00K0UtfdoIllikk7lANgjEf/qL9I0XV0WvYqIwmt3DVXNiioO+gHItO3/oy4w
-LDAqBgNVHREEIzAhoB8GCCsGAQUFBwgEoBMwEQYHKwYBBAERAwQGMTIzNDU2MAoG
-CCqGSM49BAMCA0gAMEUCIQCijdm1AfArx2p4cLCVciHCTE8UXRiTm8f85k4aNzzf
-sgIgCdmLyfZB9jsSPH3A3O1GATAR3O9OTtEDC+YSc+lvxSw=
------END CERTIFICATE-----
diff --git a/tests/data_files/parse_input/server5-othername.crt.der b/tests/data_files/parse_input/server5-othername.crt.der
new file mode 100644
index 0000000..0ef31cf
--- /dev/null
+++ b/tests/data_files/parse_input/server5-othername.crt.der
Binary files differ
diff --git a/tests/data_files/parse_input/server5-unsupported_othername.crt b/tests/data_files/parse_input/server5-unsupported_othername.crt
deleted file mode 100644
index b46fc2d..0000000
--- a/tests/data_files/parse_input/server5-unsupported_othername.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBtjCCAVygAwIBAgIBTTAKBggqhkjOPQQDAjBNMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwITWJlZCBUTFMxKzApBgNVBAMMIk1iZWQgVExTIHVuc3VwcG9ydGVkIG90
-aGVybmFtZSBTQU4wHhcNMTkwNTAxMDkxMDM1WhcNMjkwNDI4MDkxMDM1WjBNMQsw
-CQYDVQQGEwJVSzERMA8GA1UECgwITWJlZCBUTFMxKzApBgNVBAMMIk1iZWQgVExT
-IHVuc3VwcG9ydGVkIG90aGVybmFtZSBTQU4wWTATBgcqhkjOPQIBBggqhkjOPQMB
-BwNCAAQ3zFbZdgkeWnI+x1kt/yBu7nz5BpF00K0UtfdoIllikk7lANgjEf/qL9I0
-XV0WvYqIwmt3DVXNiioO+gHItO3/oy0wKzApBgNVHREEIjAgoB4GAyoDBKAXDBVz
-b21lIG90aGVyIGlkZW50aWZpZXIwCgYIKoZIzj0EAwIDSAAwRQIhANkj6n9qHYVi
-FLfb0IRZpIsvvuNCjSgT8yBLVjJYQj3nAiBffQKZ7y/F6rfon6L1GZU0BBja8BLX
-rXp8WpY7Bc8myQ==
------END CERTIFICATE-----
diff --git a/tests/data_files/parse_input/server5-unsupported_othername.crt.der b/tests/data_files/parse_input/server5-unsupported_othername.crt.der
new file mode 100644
index 0000000..1d9c205
--- /dev/null
+++ b/tests/data_files/parse_input/server5-unsupported_othername.crt.der
Binary files differ
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index edb7824..e14075b 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -87,12 +87,12 @@
 x509_cert_info:"data_files/parse_input/server5-sha512.crt":"cert. version     \: 3\nserial number     \: 15\nissuer name       \: C=NL, O=PolarSSL, CN=Polarssl Test EC CA\nsubject name      \: C=NL, O=PolarSSL, CN=localhost\nissued  on        \: 2013-09-24 16\:21\:27\nexpires on        \: 2023-09-22 16\:21\:27\nsigned using      \: ECDSA with SHA512\nEC key size       \: 256 bits\nbasic constraints \: CA=false\n"
 
 X509 CRT information EC, SHA256 Digest, hardware module name SAN
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_cert_info:"data_files/parse_input/server5-othername.crt":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS othername SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS othername SAN\nissued  on        \: 2019-03-24 09\:06\:02\nexpires on        \: 2029-03-21 09\:06\:02\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    otherName \:\n        hardware module name \:\n            hardware type          \: 1.3.6.1.4.1.17.3\n            hardware serial number \: 313233343536\n"
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_cert_info:"data_files/parse_input/server5-othername.crt.der":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS othername SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS othername SAN\nissued  on        \: 2023-06-20 09\:04\:43\nexpires on        \: 2033-06-17 09\:04\:43\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    otherName \:\n        hardware module name \:\n            hardware type          \: 1.3.6.1.4.1.17.3\n            hardware serial number \: 313233343536\n"
 
 X509 CRT information EC, SHA256 Digest, binary hardware module name SAN
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_cert_info:"data_files/parse_input/server5-nonprintable_othername.crt":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS non-printable othername SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS non-printable othername SAN\nissued  on        \: 2022-09-06 15\:56\:47\nexpires on        \: 2032-09-03 15\:56\:47\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    otherName \:\n        hardware module name \:\n            hardware type          \: 1.3.6.1.4.1.17.3\n            hardware serial number \: 3132338081008180333231\n"
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_cert_info:"data_files/parse_input/server5-nonprintable_othername.crt.der":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS non-printable othername SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS non-printable othername SAN\nissued  on        \: 2023-06-20 09\:49\:20\nexpires on        \: 2033-06-17 09\:49\:20\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    otherName \:\n        hardware module name \:\n            hardware type          \: 1.3.6.1.4.1.17.3\n            hardware serial number \: 3132338081008180333231\n"
 
 X509 CRT information EC, SHA256 Digest, directoryName SAN
 depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
@@ -103,8 +103,8 @@
 x509_cert_info:"data_files/parse_input/server5-two-directorynames.crt.der":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS directoryName SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS directoryName SAN\nissued  on        \: 2023-01-12 10\:34\:11\nexpires on        \: 2033-01-09 10\:34\:11\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    directoryName \: C=UK, O=Mbed TLS, CN=Mbed TLS directoryName SAN\n    directoryName \: O=MALFORM_ME\n"
 
 X509 CRT information EC, SHA256 Digest, Wisun Fan device
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_cert_info:"data_files/parse_input/server5-fan.crt":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS FAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS FAN\nissued  on        \: 2019-03-25 09\:03\:46\nexpires on        \: 2029-03-22 09\:03\:46\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\next key usage     \: Wi-SUN Alliance Field Area Network (FAN)\n"
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_cert_info:"data_files/parse_input/server5-fan.crt.der":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS FAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS FAN\nissued  on        \: 2023-06-20 09\:49\:35\nexpires on        \: 2033-06-17 09\:49\:35\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\next key usage     \: Wi-SUN Alliance Field Area Network (FAN)\n"
 
 X509 CRT information, NS Cert Type
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_MD_CAN_SHA1
@@ -195,12 +195,12 @@
 x509_cert_info:"data_files/server5-tricky-ip-san.crt.der":"cert. version     \: 3\nserial number     \: 4D\nissuer name       \: C=UK, O=Mbed TLS, CN=Mbed TLS Tricky IP SAN\nsubject name      \: C=UK, O=Mbed TLS, CN=Mbed TLS Tricky IP SAN\nissued  on        \: 2023-06-05 11\:30\:36\nexpires on        \: 2033-06-02 11\:30\:36\nsigned using      \: ECDSA with SHA256\nEC key size       \: 256 bits\nsubject alt name  \:\n    iPAddress \: 97.98.99.100\n    iPAddress \: 6162\:6364\:2E65\:7861\:6D70\:6C65\:2E63\:6F6D\n"
 
 X509 SAN parsing otherName
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_parse_san:"data_files/parse_input/server5-othername.crt":"type \: 0\notherName \: hardware module name \: hardware type \: 1.3.6.1.4.1.17.3, hardware serial number \: 313233343536\n":0
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_parse_san:"data_files/parse_input/server5-othername.crt.der":"type \: 0\notherName \: hardware module name \: hardware type \: 1.3.6.1.4.1.17.3, hardware serial number \: 313233343536\n":0
 
 X509 SAN parsing binary otherName
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_parse_san:"data_files/parse_input/server5-nonprintable_othername.crt":"type \: 0\notherName \: hardware module name \: hardware type \: 1.3.6.1.4.1.17.3, hardware serial number \: 3132338081008180333231\n":0
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_parse_san:"data_files/parse_input/server5-nonprintable_othername.crt.der":"type \: 0\notherName \: hardware module name \: hardware type \: 1.3.6.1.4.1.17.3, hardware serial number \: 3132338081008180333231\n":0
 
 X509 SAN parsing directoryName
 depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
@@ -227,8 +227,8 @@
 x509_parse_san:"data_files/parse_input/server4.crt":"":0
 
 X509 SAN parsing, unsupported otherName name
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
-x509_parse_san:"data_files/parse_input/server5-unsupported_othername.crt":"":0
+depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_CAN_SHA256
+x509_parse_san:"data_files/parse_input/server5-unsupported_othername.crt.der":"":0
 
 X509 SAN parsing rfc822Name
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_MD_CAN_SHA256