diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 9ec2ffa..c0d8b49 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -6016,7 +6016,6 @@
             0 \
             -c "Ciphersuite is TLS-[EC]*DHE-RSA-WITH-"
 
-
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_2
 run_test    "keyUsage srv: RSA, keyEncipherment -> RSA" \
             "$P_SRV key_file=data_files/server2.key \
@@ -6151,6 +6150,78 @@
             -c "Ciphersuite is TLS-" \
             -c "! Usage does not match the keyUsage extension"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: DigitalSignature+KeyEncipherment, RSA: OK" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server2.key \
+             -cert data_files/server2.ku-ds_ke.crt" \
+            "$P_CLI debug_level=3" \
+            0 \
+            -C "bad certificate (usage extensions)" \
+            -C "Processing of the Certificate handshake message failed" \
+            -c "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: KeyEncipherment, RSA: KO" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server2.key \
+             -cert data_files/server2.ku-ke.crt" \
+            "$P_CLI debug_level=1" \
+            1 \
+            -c "bad certificate (usage extensions)" \
+            -c "Processing of the Certificate handshake message failed" \
+            -C "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: KeyAgreement, RSA: KO" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server2.key \
+             -cert data_files/server2.ku-ka.crt" \
+            "$P_CLI debug_level=1" \
+            1 \
+            -c "bad certificate (usage extensions)" \
+            -c "Processing of the Certificate handshake message failed" \
+            -C "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: DigitalSignature, ECDSA: OK" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.ku-ds.crt" \
+            "$P_CLI debug_level=3" \
+            0 \
+            -C "bad certificate (usage extensions)" \
+            -C "Processing of the Certificate handshake message failed" \
+            -c "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: KeyEncipherment, ECDSA: KO" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.ku-ke.crt" \
+            "$P_CLI debug_level=1" \
+            1 \
+            -c "bad certificate (usage extensions)" \
+            -c "Processing of the Certificate handshake message failed" \
+            -C "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli 1.3: KeyAgreement, ECDSA: KO" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.ku-ka.crt" \
+            "$P_CLI debug_level=1" \
+            1 \
+            -c "bad certificate (usage extensions)" \
+            -c "Processing of the Certificate handshake message failed" \
+            -C "Ciphersuite is"
+
 # Tests for keyUsage in leaf certificates, part 3:
 # server-side checking of client cert
 
@@ -6199,6 +6270,50 @@
             -s "bad certificate (usage extensions)" \
             -S "Processing of the Certificate handshake message failed"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli-auth 1.3: RSA, DigitalSignature: OK" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server2.key \
+             -cert data_files/server2.ku-ds.crt" \
+            0 \
+            -S "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli-auth 1.3: RSA, KeyEncipherment: fail (soft)" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server2.key \
+             -cert data_files/server2.ku-ke.crt" \
+            0 \
+            -s "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli-auth 1.3: ECDSA, DigitalSignature: OK" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.ku-ds.crt" \
+            0 \
+            -S "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "keyUsage cli-auth 1.3: ECDSA, KeyAgreement: fail (soft)" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.ku-ka.crt" \
+            0 \
+            -s "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
 # Tests for extendedKeyUsage, part 1: server-side certificate/suite selection
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_2
@@ -6271,6 +6386,54 @@
             -c "Processing of the Certificate handshake message failed" \
             -C "Ciphersuite is TLS-"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli 1.3: serverAuth -> OK" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.eku-srv.crt" \
+            "$P_CLI debug_level=1" \
+            0 \
+            -C "bad certificate (usage extensions)" \
+            -C "Processing of the Certificate handshake message failed" \
+            -c "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli 1.3: serverAuth,clientAuth -> OK" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.eku-srv_cli.crt" \
+            "$P_CLI debug_level=1" \
+            0 \
+            -C "bad certificate (usage extensions)" \
+            -C "Processing of the Certificate handshake message failed" \
+            -c "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli 1.3: codeSign,anyEKU -> OK" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.eku-cs_any.crt" \
+            "$P_CLI debug_level=1" \
+            0 \
+            -C "bad certificate (usage extensions)" \
+            -C "Processing of the Certificate handshake message failed" \
+            -c "Ciphersuite is"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli 1.3: codeSign -> fail" \
+            "$O_NEXT_SRV_NO_CERT -tls1_3 -num_tickets=0 -key data_files/server5.key \
+             -cert data_files/server5.eku-cs.crt" \
+            "$P_CLI debug_level=1" \
+            1 \
+            -c "bad certificate (usage extensions)" \
+            -c "Processing of the Certificate handshake message failed" \
+            -C "Ciphersuite is"
+
 # Tests for extendedKeyUsage, part 3: server-side checking of client cert
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_2
@@ -6318,6 +6481,50 @@
             -s "bad certificate (usage extensions)" \
             -s "Processing of the Certificate handshake message failed"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli-auth 1.3: clientAuth -> OK" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.eku-cli.crt" \
+            0 \
+            -S "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli-auth 1.3: serverAuth,clientAuth -> OK" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.eku-srv_cli.crt" \
+            0 \
+            -S "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli-auth 1.3: codeSign,anyEKU -> OK" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.eku-cs_any.crt" \
+            0 \
+            -S "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
+requires_openssl_tls1_3
+requires_config_disabled MBEDTLS_SSL_PROTO_TLS1_2
+run_test    "extKeyUsage cli-auth 1.3: codeSign -> fail (soft)" \
+            "$P_SRV debug_level=1 auth_mode=optional" \
+            "$O_NEXT_CLI_NO_CERT -key data_files/server5.key \
+             -cert data_files/server5.eku-cs.crt" \
+            0 \
+            -s "bad certificate (usage extensions)" \
+            -S "Processing of the Certificate handshake message failed"
+
 # Tests for DHM parameters loading
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_2