| Interface | Description | 
|---|---|
| KeyProvider | 
| Class | Description | 
|---|---|
| KeyInfo | 
 KeyInfo is an optional element that enables the recipient(s) to obtain the
  key needed to validate the signature. 
 | 
| KeyPurpose | |
| KeyResolver | |
| KeyResult | |
| KeyValue | |
| X509Data | |
| X509IssuerSerial | 
| Exception | Description | 
|---|---|
| KeyInfoException | |
| KeyInfoValidationException | |
| KeyResolverException |