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Class w3c.www.dsig.SigSuiteECDSS

java.lang.Object
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   +----w3c.www.dsig.SignatureSuite
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           +----w3c.www.dsig.SigSuiteECDSS

public final class SigSuiteECDSS

extends SignatureSuite

Application programmers should never access this class via its name w3c.www.dsig.SigSuiteECDSS. You should use SigSuiteRegistry.getInstance(), sigblock.getSigSuite(), etc.

ECDSSURL

The string defined to indentify the ECDSS (Elliptic Curve with Digital Signature Standard) signature suite implemented by this class, http://www.w3.org/PICS/DSig/ECDSS-1_0.html.

SigSuiteECDSS()

Constructor for use by w3c.www.dsig.SigSuiteRegistry.getInstance().

getBy()

Return the contents of the ByX field.

getByType()

Return the type of the 'By' information used in this signature suite object.

getKeyLength()

Return the length of the key used to generate this signature.

setBy(String, Object)

Set the By information in the label.

sign(DSigLabelInterface, PrivateKey)

Sign the given label using the given private key, which needs to be an instance of a DSAPublicKey.

verify(DSigLabelInterface, PublicKey)

Verify if this signature suite object correctly signs the given label with the given public key.

 public static final String ECDSSURL

The string defined to indentify the ECDSS (Elliptic Curve with Digital Signature Standard) signature suite implemented by this class, http://www.w3.org/PICS/DSig/ECDSS-1_0.html.

 public SigSuiteECDSS() throws NoSuchAlgorithmException

Constructor for use by w3c.www.dsig.SigSuiteRegistry.getInstance(). Application programmers should not need to access this constructor directly.

Throws: NoSuchAlgorithmException

if either ECC or DSS algorithms cannot be found.

 public int getKeyLength()

Return the length of the key used to generate this signature. To be more precise, return the length of the number p, which is only one part of the key. Note that the keylength will only be available after sign() or verify() has been called, otherwise this method will return -1.

Overrides:

getKeyLength in class SignatureSuite

 public DSigLabelInterface sign(DSigLabelInterface label,
                                PrivateKey privkey)

Sign the given label using the given private key, which needs to be an instance of a DSAPublicKey. Signing automatically sets the ByName property to "[anonymous]", that should be set appropriately after signing. If this signature suite object already contains a signature, it will be replaced by the new one.

Overrides:

sign in class SignatureSuite

 public Trivalue verify(DSigLabelInterface label,
                        PublicKey pubkey)

Verify if this signature suite object correctly signs the given label with the given public key. pubkey must either be an instance of DSAPublicKey or null. In that case the public key will be extracted from the signature suite if it is specified either as ByKey or as ByName (trying a certificate lookup). If no valid public key can be found, verify returns unknown. Else the signature will be verified using that public key returning unknown if there was any other problem verifying the signature or one of true/ false to indicate the result.

Overrides:

verify in class SignatureSuite

 public String getByType()

Return the type of the 'By' information used in this signature suite object.

Overrides:

getByType in class SignatureSuite

 public Object getBy()

Return the contents of the ByX field.

Overrides:

getBy in class SignatureSuite

 public SignatureSuite setBy(String type,
                             Object signer)

Set the By information in the label.

Overrides:

setBy in class SignatureSuite

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