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Viewing changes to src/org/bouncycastle/cert/crmf/PKMACValueGenerator.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/PKMACValueGenerator.java
 
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package org.bouncycastle.cert.crmf;
 
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import java.io.IOException;
 
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import java.io.OutputStream;
 
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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.x509.SubjectPublicKeyInfo;
 
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import org.bouncycastle.operator.MacCalculator;
 
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class PKMACValueGenerator
 
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{
 
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    private PKMACBuilder builder;
 
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    public PKMACValueGenerator(PKMACBuilder builder)
 
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    {
 
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        this.builder = builder;
 
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    }
 
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    public PKMACValue generate(char[] password, SubjectPublicKeyInfo keyInfo)
 
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        throws CRMFException
 
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    {
 
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        MacCalculator calculator = builder.build(password);
 
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        OutputStream macOut = calculator.getOutputStream();
 
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        try
 
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        {
 
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            macOut.write(keyInfo.getDEREncoded());
 
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            macOut.close();
 
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        }
 
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        catch (IOException e)
 
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        {
 
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            throw new CRMFException("exception encoding mac input: " + e.getMessage(), e);
 
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        }
 
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        return new PKMACValue(calculator.getAlgorithmIdentifier(), new DERBitString(calculator.getMac()));
 
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    }
 
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}