diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index d7ab50d..2ffb706 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -39,8 +39,12 @@
 test_ca_config_file = test-ca.opensslconf
 
 test-ca.csr: $(test_ca_key_file_rsa) $(test_ca_config_file)
-	$(OPENSSL) req -new -config $(test_ca_config_file) -key $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -subj "/C=NL/O=PolarSSL/CN=PolarSSL Test CA" -out $@
+	$(MBEDTLS_CERT_REQ) filename=$(test_ca_key_file_rsa) password=$(test_ca_pwd_rsa) subject_name="C=NL,O=PolarSSL,CN=PolarSSL Test CA" output_file=$@
 all_intermediate += test-ca.csr
+test-ca.crt: $(test_ca_key_file_rsa)
+	$(MBEDTLS_CERT_WRITE) is_ca=1 serial=3 selfsign=1 issuer_name="C=NL,O=PolarSSL,CN=PolarSSL Test CA" issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) not_before=20190210144400 not_after=20290210144400 md=SHA1 version=3 output_file=$@
+all_final += test-ca.crt
+
 test-ca-sha1.crt: $(test_ca_key_file_rsa) $(test_ca_config_file) test-ca.csr
 	$(OPENSSL) req -x509 -config $(test_ca_config_file) -key $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -set_serial 0 -days 3653 -sha1 -in test-ca.csr -out $@
 all_final += test-ca-sha1.crt
@@ -124,8 +128,8 @@
 	$(OPENSSL) req -new -key server2.key -passin "pass:$(test_ca_pwd_rsa)" -subj "/C=NL/O=PolarSSL/CN=localhost" -out $@
 all_intermediate += server2-rsa.csr
 server2.crt: server2-rsa.csr
-	$(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA test-ca-sha256.crt -CAkey $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -set_serial 4 -days 3653 -sha1 -in server2-rsa.csr -out $@
-all_final += server2-sha256.crt
+	$(MBEDTLS_CERT_WRITE) request_file=server2-rsa.csr issuer_crt=test-ca-sha256.crt issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) serial=4 not_before=20190410141727 not_after=20290410141727 md=SHA1 version=3 output_file=$@
+all_final += server2.crt
 server2-sha256.crt: server2-rsa.csr
 	$(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA test-ca-sha256.crt -CAkey $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -set_serial 4 -days 3653 -sha256 -in server2-rsa.csr -out $@
 all_final += server2-sha256.crt
diff --git a/tests/data_files/server2.crt b/tests/data_files/server2.crt
index 69c95c5..d5a3ca1 100644
--- a/tests/data_files/server2.crt
+++ b/tests/data_files/server2.crt
@@ -1,21 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIIDfTCCAmWgAwIBAgIBBDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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 owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz
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 hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya
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-BgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwYwYDVR0jBFwwWoAUtFrkpbPe
-0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNVBAYTAk5MMREwDwYDVQQKDAhQb2xh
-clNTTDEZMBcGA1UEAwwQUG9sYXJTU0wgVGVzdCBDQYIBAzAJBgNVHRMEAjAAMA0G
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-x/eDnoI9/gNO8K8pLFmNkcXBdr/QxVR+Ao/kPWHoWQtxnzfyusZlbYNvFlchORCw
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-WBKL+sRYcWvNwEUnwbOii6N895YciSZUnzCo53uhJq6/
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+gyo6Qo35SIy+Fuw=
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-ca.crt b/tests/data_files/test-ca.crt
index 7a17822..561d0e2 100644
--- a/tests/data_files/test-ca.crt
+++ b/tests/data_files/test-ca.crt
@@ -1,21 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-A1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
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+A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
 CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
 mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
 50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
 YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
 R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
 KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwHQYDVR0OBBYEFLRa5KWz3tJS9rnVppUP6z68x/3/MGMGA1UdIwRcMFqA
-FLRa5KWz3tJS9rnVppUP6z68x/3/oT+kPTA7MQswCQYDVQQGEwJOTDERMA8GA1UE
-CgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0GCAQAwDAYDVR0T
-BAUwAwEB/zANBgkqhkiG9w0BAQUFAAOCAQEAYDDFsUzrjOj/QoyuUeW1s1O/30pl
-HjDAbIroaTR4xUYQEjL6GCOMV9q51Sq5epTMk4ElbGZckMZvtnsKdDqzc1io9Ke+
-+NeKyhXpCx34FVAzBl8ywfwLt20qbzAlTeqHQiOeCUldRqZet4qLmae8bivCCP0V
-0rt7xaV6nxQWmyqX2eCSNexMFDUdhCMo6rXXKvh7CwFhEwIENtRsOeUO2iFViXL1
-Iq0myvt3Fg9nsVfrcVJmlalXxvBjaz/bO4l77E6gJE1Zk9FdbjvALnkUJZwpo+yE
-Flue8ljNjMTVMbGZBHSJHjnBLp3bbasETkUOt8NRbAwI43M4E8upX17V6g==
+UDBOMAwGA1UdEwQFMAMBAf8wHQYDVR0OBBYEFLRa5KWz3tJS9rnVppUP6z68x/3/
+MB8GA1UdIwQYMBaAFLRa5KWz3tJS9rnVppUP6z68x/3/MA0GCSqGSIb3DQEBBQUA
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+OFN1vIQOhRiINmQDz4UbOC0hPPLIARNddjs+ZJOsNJzI3KRaWOrPUpJZcf2IKn9u
+A61mn4MPgfvvZ+fomagdzbIxP1xI8nxr6EVGEutmCU/HiQGI+0BEBP0EnaOitUxc
+4rEoqaJ3VFyzhZ/TaHbjSSL/1wFOK4YzinNeaAdPJW8Acab7TkBBQxfX3Q/xZn6D
+hIVjoMD4kqgJ68//A6dPFKTH1R+QlBmKNSEw69/wHUEvpqFnvvmxO+uhCjnE/tcp
+YEgyXlCL2lv0XP3cq1OMTGyxHK/Y
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-ca_cat12.crt b/tests/data_files/test-ca_cat12.crt
index f6c36c4..2d1d882 100644
--- a/tests/data_files/test-ca_cat12.crt
+++ b/tests/data_files/test-ca_cat12.crt
@@ -1,23 +1,22 @@
 -----BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTkwMzEyMTIwNDU5WhcNMjkwMzEyMTIwNDU5WjA7MQswCQYDVQQGEwJOTDERMA8G
-A1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
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 CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
 mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
 50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
 YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
 R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
 KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwHQYDVR0OBBYEFLRa5KWz3tJS9rnVppUP6z68x/3/MGMGA1UdIwRcMFqA
-FLRa5KWz3tJS9rnVppUP6z68x/3/oT+kPTA7MQswCQYDVQQGEwJOTDERMA8GA1UE
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-BAUwAwEB/zANBgkqhkiG9w0BAQUFAAOCAQEAYDDFsUzrjOj/QoyuUeW1s1O/30pl
-HjDAbIroaTR4xUYQEjL6GCOMV9q51Sq5epTMk4ElbGZckMZvtnsKdDqzc1io9Ke+
-+NeKyhXpCx34FVAzBl8ywfwLt20qbzAlTeqHQiOeCUldRqZet4qLmae8bivCCP0V
-0rt7xaV6nxQWmyqX2eCSNexMFDUdhCMo6rXXKvh7CwFhEwIENtRsOeUO2iFViXL1
-Iq0myvt3Fg9nsVfrcVJmlalXxvBjaz/bO4l77E6gJE1Zk9FdbjvALnkUJZwpo+yE
-Flue8ljNjMTVMbGZBHSJHjnBLp3bbasETkUOt8NRbAwI43M4E8upX17V6g==
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+MB8GA1UdIwQYMBaAFLRa5KWz3tJS9rnVppUP6z68x/3/MA0GCSqGSIb3DQEBBQUA
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+hIVjoMD4kqgJ68//A6dPFKTH1R+QlBmKNSEw69/wHUEvpqFnvvmxO+uhCjnE/tcp
+YEgyXlCL2lv0XP3cq1OMTGyxHK/Y
 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
 MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
diff --git a/tests/data_files/test-ca_cat21.crt b/tests/data_files/test-ca_cat21.crt
index 1ef4057..d7020cf 100644
--- a/tests/data_files/test-ca_cat21.crt
+++ b/tests/data_files/test-ca_cat21.crt
@@ -14,23 +14,22 @@
 uCjn8pwUOkABXK8Mss90fzCfCEOtIA==
 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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-Iq0myvt3Fg9nsVfrcVJmlalXxvBjaz/bO4l77E6gJE1Zk9FdbjvALnkUJZwpo+yE
-Flue8ljNjMTVMbGZBHSJHjnBLp3bbasETkUOt8NRbAwI43M4E8upX17V6g==
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 -----END CERTIFICATE-----
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 391524b..8bca39a 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -4,11 +4,11 @@
 
 X509 Certificate information #2
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
-x509_cert_info:"data_files/server2.crt":"cert. version     \: 3\nserial number     \: 04\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=localhost\nissued  on        \: 2019-03-12 10\:06\:06\nexpires on        \: 2029-03-12 10\:06\:06\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\n"
+x509_cert_info:"data_files/server2.crt":"cert. version     \: 3\nserial number     \: 04\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=localhost\nissued  on        \: 2019-04-10 14\:17\:27\nexpires on        \: 2029-04-10 14\:17\:27\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\n"
 
 X509 Certificate information #3
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
-x509_cert_info:"data_files/test-ca.crt":"cert. version     \: 3\nserial number     \: 00\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nissued  on        \: 2019-03-12 12\:04\:59\nexpires on        \: 2029-03-12 12\:04\:59\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=true\n"
+x509_cert_info:"data_files/test-ca.crt":"cert. version     \: 3\nserial number     \: 03\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nissued  on        \: 2019-02-10 14\:44\:00\nexpires on        \: 2029-02-10 14\:44\:00\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=true\n"
 
 X509 Certificate information MD2 Digest
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_MD2_C
@@ -845,7 +845,7 @@
 
 X509 Certificate verification callback: simple
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca.crt":"NULL":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca.crt":"NULL":0:"depth 1 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
 
 X509 Certificate verification callback: simple, EE expired
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_HAVE_TIME_DATE
@@ -857,15 +857,15 @@
 
 X509 Certificate verification callback: two trusted roots
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat12.crt":"NULL":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat12.crt":"NULL":0:"depth 1 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
 
 X509 Certificate verification callback: two trusted roots, reversed order
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 1 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
 
 X509 Certificate verification callback: root included
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1_ca.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
+x509_verify_callback:"data_files/server1_ca.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 1 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x00000000\n"
 
 X509 Certificate verification callback: intermediate ca
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
@@ -893,11 +893,11 @@
 
 X509 Certificate verification callback: two intermediates
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x00000000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x00000000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x00000000\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 3 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x00000000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x00000000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x00000000\n"
 
 X509 Certificate verification callback: two intermediates, root included
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x00000000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x00000000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x00000000\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-ca_cat21.crt":"NULL":0:"depth 3 - serial 03 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x00000000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x00000000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x00000000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x00000000\n"
 
 X509 Certificate verification callback: two intermediates, top int trusted
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C