X509_MakeCert - Creates an X.509 certificate.X509_MakeCertSelf - Creates a self-signed X.509 certificate.X509_CertRequest - Creates a PKCS-10 certification signing request (CSR).X509_VerifyCert - Verifies that an X.509 certificate has been signed by its issuer.X509_CertThumb - Calculates the message digest thumbprint of an X.509 certificate.X509_CertIsValidNow - Verifies that an X.509 certificate is currently valid.X509_CertIssuedOn - Returns string containing date and time certificate was issued on.X509_CertExpiresOn - Returns string containing date and time certificate expires.X509_CertSerialNumber - Extracts serial number of X.509 certificate.X509_CertIssuerName - Extracts issuer's name from X.509 certificate.X509_CertSubjectName - Extracts subject's name from X.509 certificate.X509_HashIssuerAndSN - Calculates the message digest hash of the issuer-and-serial-number value of an X.509 certificate.X509_GetCertFromP7Chain - Extracts an X.509 certificate file from a PKCS-7 "certs-only" certificate chain file.X509_GetCertFromPFX* - Extracts an X.509 certificate file from a PKCS-12 PFX/.p12 file.X509_KeyUsageFlags - Returns a bitfield containing the keyUsage flags.X509_QueryCert - Queries a X.509 certificate file for selected information.X509_ReadStringFromFile - Creates a base64 string of the X.509 certificate file.X509_SaveFileFromString - Creates a new X.509 certificate file from a base64 string.X509_TextDump - Dumps details of X.509 certificate (or CRL or CSR) to a text file.X509_ValidatePath - Validates a certificate path.