Good morning, I'm testing a routine that verify the validity of an intermediate certificate, against my root certificate. Both certificates are generated on my machine.

The code to do this is here: https://wtools.io/paste-code/b4OL

I can do the verify with openSSL and works fine.

When I pass certificates tombedTLS it returns these errors:

The certificate is signed with an unacceptable hash. The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). The certificate is signed with an unacceptable key (eg bad curve, RSA too short).

Can someone help me to find the mistakes?

Thanks for your help.

ROOT CERTIFICATE:

-----BEGIN CERTIFICATE----- MIIB8TCCAXagAwIBAgIBATAMBggqhkjOPQQDAgUAMDkxCzAJBgNVBAMMAkNBMR0w GwYDVQQKDBRDb21lbGl0IEdyb3VwIFMucC5BLjELMAkGA1UEBhMCSVQwHhcNMDEw MTAxMDAwMDAwWhcNMzAxMjMxMjM1OTU5WjA5MQswCQYDVQQDDAJDQTEdMBsGA1UE CgwUQ29tZWxpdCBHcm91cCBTLnAuQS4xCzAJBgNVBAYTAklUMHYwEAYHKoZIzj0C AQYFK4EEACIDYgAE/u9D/9E9S8kmJ5W75GwaZxUuXYuCYfszCsjNEuylVMj8N1r6 Ce+FJ3eSKQGgh2/H2Pd5Ck7TENQSuVBZIVsUcUv5q/MGGJWUNLCSZm2b5kadVKXQ 6Cn6t7RDFQ0IvRoLo1AwTjAMBgNVHRMEBTADAQH/MB8GA1UdIwQYMBaAFOzrPv2f Rkotop0JzDEg/9CtjcRjMB0GA1UdDgQWBBTs6z79n0ZKLaKdCcwxIP/QrY3EYzAM BggqhkjOPQQDAgUAA2cAMGQCMAxEjQOUP2hC3yhGIkz04Y9fFR6WWH8kUqQEutfb 57Q9ADRFsmAVtJgOZEsVhnZ6ugIwcRK7dngvNozV9Uu4ifhDCLF7qQhAH4XyQ/WI GgKtCIBIps/H+JQNqjpwsVs8zlER -----END CERTIFICATE-----

INTERMEDIATE CERTIFICATE:

-----BEGIN CERTIFICATE----- MIIDDDCCAo+gAwIBAgIBATAMBggqhkjOPQQDAgUAMDkxCzAJBgNVBAMMAkNBMR0w GwYDVQQKDBRDb21lbGl0IEdyb3VwIFMucC5BLjELMAkGA1UEBhMCSVQwHhcNMDEw MTAxMDAwMDAwWhcNMzAxMjMxMjM1OTU5WjCBozE+MDwGA1UEAww1Q29tZWxpdCBD bG91ZCBBcyBEZXYgS2ZHWUFjWHg5U3NvMnlic3plcDRQTjZjR295R1BMaTAxJjAk BgNVBAsMHUNvbWVsaXQgR3JvdXAgU3BhIC0gQ2xvdWQgTGFiMRowGAYDVQQKDBFD b21lbGl0IEdyb3VwIFNwYTEQMA4GA1UECAwHQmVyZ2FtbzELMAkGA1UEBhMCSVQw ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCfGrKbFRgC5o8REbcYdRzW FXS772+CC15nXCJR67gWL1wmKzrCekkFNlOnQrsPhe4iYnkhLuBYNWaVvSaHt9dS X/ZBbJ3bRnGAarw7QnirLZJFYSRRBhMw6xi91nt8kIvcA6kACFcooaRmg/jQzCyb eXO1skJhDv13TxwDB8UTtRkfOTFl23FekMPWmJpqU1YxjAAYRtcY4jGAtV4D7T3V 3WjZ0eaIjl9n2g9/slG6p3ZSjONIRmyTiBRQNynKCxy1Q9Px1ohDCcS2SsK0smy6 0EzCghEz8QjAWs7U9Ilh3OTCdCpV9clp1DQrjbDZky1rMEd7mRmTp8Fmd2c3ld0F AgMBAAGjUDBOMB0GA1UdDgQWBBT3OOc7ZPbeOBTkeYPBFQcQTLhECDAfBgNVHSME GDAWgBTs6z79n0ZKLaKdCcwxIP/QrY3EYzAMBgNVHRMEBTADAQH/MAwGCCqGSM49 BAMCBQADaQAwZgIxAJvrL0kIeB4mvRJT1MRA0Kc/mw5ZVVv0ErOQqLhQShECw6+K s5DL9V/tHf72iCCivAIxANfBJ2IMLzSZCOrSmr9fOCQktM6mFC5PyAuZX+3OGPfU UuJwph7GaoWW+fw1IxQm2Q== -----END CERTIFICATE-----

Thanks a lot, Stefano