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Viewing changes to src/org/bouncycastle/cert/crmf/ProofOfPossessionSigningKeyBuilder.java

  • Committer: Brian Thomason
  • Date: 2011-12-20 17:20:32 UTC
  • Revision ID: brian.thomason@canonical.com-20111220172032-rdtm13jgdxtksacr
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src/org/bouncycastle/cert/crmf/ProofOfPossessionSigningKeyBuilder.java
 
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package org.bouncycastle.cert.crmf;
 
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import org.bouncycastle.asn1.DERBitString;
 
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import org.bouncycastle.asn1.crmf.PKMACValue;
 
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import org.bouncycastle.asn1.crmf.POPOSigningKey;
 
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import org.bouncycastle.asn1.crmf.POPOSigningKeyInput;
 
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import org.bouncycastle.asn1.x509.GeneralName;
 
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import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
 
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import org.bouncycastle.operator.ContentSigner;
 
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public class ProofOfPossessionSigningKeyBuilder
 
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{
 
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    private SubjectPublicKeyInfo pubKeyInfo;
 
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    private GeneralName name;
 
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    private PKMACValue publicKeyMAC;
 
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    public ProofOfPossessionSigningKeyBuilder(SubjectPublicKeyInfo pubKeyInfo)
 
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    {
 
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        this.pubKeyInfo = pubKeyInfo;
 
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    }
 
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    public ProofOfPossessionSigningKeyBuilder setSender(GeneralName name)
 
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    {
 
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        this.name = name;
 
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        return this;
 
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    }
 
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    public ProofOfPossessionSigningKeyBuilder setPublicKeyMac(PKMACValueGenerator generator, char[] password)
 
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        throws CRMFException
 
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    {
 
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        this.publicKeyMAC = generator.generate(password, pubKeyInfo);
 
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        return this;
 
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    }
 
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    public POPOSigningKey build(ContentSigner signer)
 
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    {
 
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        if (name != null && publicKeyMAC != null)
 
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        {
 
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            throw new IllegalStateException("name and publicKeyMAC cannot both be set.");
 
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        }
 
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        POPOSigningKeyInput popo;
 
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        if (name != null)
 
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        {
 
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            popo = new POPOSigningKeyInput(name, pubKeyInfo);
 
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        }
 
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        else
 
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        {
 
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            popo = new POPOSigningKeyInput(publicKeyMAC, pubKeyInfo);
 
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        }
 
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        CRMFUtil.derEncodeToStream(popo, signer.getOutputStream());
 
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        return new POPOSigningKey(popo, signer.getAlgorithmIdentifier(), new DERBitString(signer.getSignature()));
 
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    }
 
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}