ScCertificateExts unit implements the following classes:
TScSignatureAlgorithmIdentifier
TScCertAlternativeNameExtension
TScCertAuthorityInfoAccessExtension
TScCertAuthorityKeyIdExtension
TScCertBasicConstraintsExtension
TScCertCRLDistributionPointsExtension
TScCertExtendedKeyUsageExtension
TScCertPolicyMappingsExtension
TScCertSubjectDirectoryAttributesExtension
TScCertSubjectInfoAccessExtension
TScCRLCertificateIssuerExtension
TScCRLIssuingDistributionPointExtension