Package netscape.security.x509
Class X500Signer
- java.lang.Object
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- netscape.security.x509.X500Signer
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public final class X500Signer extends java.lang.Object
This class provides a binding between a Signature object and an authenticated X.500 name (from an X.509 certificate chain), which is needed in many public key signing applications.The name of the signer is important, both because knowing it is the whole point of the signature, and because the associated X.509 certificate is always used to verify the signature.
The X.509 certificate chain is temporarily not associated with the signer, but this omission will be resolved.
- Version:
- 1.18
- Author:
- David Brownell, Amit Kapoor, Hemma Prafullchandra
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Constructor Summary
Constructors Constructor Description X500Signer(java.security.Signature sig, X500Name agent)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AlgorithmId
getAlgorithmId()
Returns the algorithm used to sign.X500Name
getSigner()
Returns the name of the signing agent.byte[]
sign()
Produces the signature for the data processed by update().void
update(byte[] buf, int offset, int len)
Called for each chunk of the data being signed.
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Constructor Detail
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X500Signer
public X500Signer(java.security.Signature sig, X500Name agent)
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Method Detail
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update
public void update(byte[] buf, int offset, int len) throws java.security.SignatureException
Called for each chunk of the data being signed. That is, you can present the data in many chunks, so that it doesn't need to be in a single sequential buffer.- Parameters:
buf
- buffer holding the next chunk of the data to be signedoffset
- starting point of to-be-signed datalen
- how many bytes of data are to be signed- Throws:
java.security.SignatureException
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sign
public byte[] sign() throws java.security.SignatureException
Produces the signature for the data processed by update().- Throws:
java.security.SignatureException
- on errors.
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getAlgorithmId
public AlgorithmId getAlgorithmId()
Returns the algorithm used to sign.
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getSigner
public X500Name getSigner()
Returns the name of the signing agent.
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