However, this certificate is at “zero depth,” i.e., it does not form a certificate chain. Self-signed certificates usually serve as the root of trust in certificate chains belonging to the Certificate Authorities (CA). The provided certificate is self-signed (the issuer and subject fields are the same). The provided certificate is self-signed and it is not present in the list of trusted certificates. UNABLE_TO_FIND_VALID_CERTIFICATION_PATH, GNUTLS_CERT_SIGNER_CONSTRAINTS_FAILURE, What validation errors do other libraries give for certificates causing X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY in OpenSSL? Below, you can see the basic overview based on the example certificates from the previous section.

If you are interested in generating these certificates yourself, see the corresponding generating script for each case on the project Github.

The issuer certificate could not be found: this occurs if the issuer certificate of an untrusted certificate cannot be found.īelow you can download one or more example malformed certificates causing X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY in OpenSSL. What validation errors do other libraries give for certificates causing X509_V_ERR_CERT_HAS_EXPIRED in OpenSSL? Below, you can see the basic overview based on the example certificates from the previous section. The certificate has expired: that is the notAfter date is before the current time.īelow you can download one or more example malformed certificates causing X509_V_ERR_CERT_HAS_EXPIRED in OpenSSL. If the time settings are correct, you should get a new valid certificate from the CA. Next stepsįirst, ensure that the date, time and time zone are set correctly on your device to eliminate the possibility of local misconfiguration. Thus, the server presenting this certificate may not be who it claims. That means the certificate might have been revoked in the past (e.g., because of a leaked private key), but we cannot check anymore. Moreover, expired certificates are removed from Certificate Revocation Lists (CRLs). That means the issuing Certificate Authority (CA) does guarantee the information in it is still correct. Therefore, the certificate is no longer valid. The current time seems to be past the notAfter value. ExplanationĮvery certificate is issued for a specific time period (determined by notBefore and notAfter fields in the certificate). The certificate has expired (its validity period passed).

Certificate is not yet valid