addCounterSigners
public static SignerInformation addCounterSigners(SignerInformation signerInformation,
SignerInformationStore counterSigners)
Return a signer information object with passed in SignerInformationStore representing counter
signatures attached as an unsigned attribute.
signerInformation
- the signerInfo to be used as the basis.counterSigners
- signer info objects carrying counter signature.
- a copy of the original SignerInformationObject with the changed attributes.
getContentDigest
public byte[] getContentDigest()
return the content digest that was calculated during verification.
getCounterSignatures
public SignerInformationStore getCounterSignatures()
Return a SignerInformationStore containing the counter signatures attached to this
signer. If no counter signatures are present an empty store is returned.
getDigestAlgOID
public String getDigestAlgOID()
return the object identifier for the signature.
getDigestAlgParams
public byte[] getDigestAlgParams()
return the signature parameters, or null if there aren't any.
getEncodedSignedAttributes
public byte[] getEncodedSignedAttributes()
throws IOException
return the DER encoding of the signed attributes.
getEncryptionAlgOID
public String getEncryptionAlgOID()
return the object identifier for the signature.
getEncryptionAlgParams
public byte[] getEncryptionAlgParams()
return the signature/encyrption algorithm parameters, or null if
there aren't any.
getSignature
public byte[] getSignature()
return the encoded signature
getSignedAttributes
public AttributeTable getSignedAttributes()
return a table of the signed attributes - indexed by
the OID of the attribute.
getUnsignedAttributes
public AttributeTable getUnsignedAttributes()
return a table of the unsigned attributes indexed by
the OID of the attribute.
getVersion
public int getVersion()
return the version number for this objects underlying SignerInfo structure.
replaceUnsignedAttributes
public static SignerInformation replaceUnsignedAttributes(SignerInformation signerInformation,
AttributeTable unsignedAttributes)
Return a signer information object with the passed in unsigned
attributes replacing the ones that are current associated with
the object passed in.
signerInformation
- the signerInfo to be used as the basis.unsignedAttributes
- the unsigned attributes to add.
- a copy of the original SignerInformationObject with the changed attributes.
toSignerInfo
public SignerInfo toSignerInfo()
Return the base ASN.1 CMS structure that this object contains.
- an object containing a CMS SignerInfo structure.
verify
public boolean verify(PublicKey key,
String sigProvider)
throws NoSuchAlgorithmException,
NoSuchProviderException,
CMSException
verify that the given public key succesfully handles and confirms the
signature associated with this signer.
verify
public boolean verify(X509Certificate cert,
String sigProvider)
throws NoSuchAlgorithmException,
NoSuchProviderException,
CertificateExpiredException,
CertificateNotYetValidException,
CMSException
verify that the given certificate successfully handles and confirms
the signature associated with this signer and, if a signingTime
attribute is available, that the certificate was valid at the time the
signature was generated.