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by Brian Thomason
Initial import |
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package org.bouncycastle.crypto.tls; |
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import org.bouncycastle.crypto.Digest; |
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import org.bouncycastle.crypto.digests.MD5Digest; |
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import org.bouncycastle.crypto.digests.SHA1Digest; |
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/**
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* A combined hash, which implements md5(m) || sha1(m).
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*/
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class CombinedHash implements Digest |
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{
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private MD5Digest md5; |
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private SHA1Digest sha1; |
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CombinedHash() |
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{
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this.md5 = new MD5Digest(); |
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this.sha1 = new SHA1Digest(); |
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}
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CombinedHash(CombinedHash t) |
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{
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this.md5 = new MD5Digest(t.md5); |
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this.sha1 = new SHA1Digest(t.sha1); |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#getAlgorithmName()
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*/
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public String getAlgorithmName() |
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{
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return md5.getAlgorithmName() + " and " + sha1.getAlgorithmName() + " for TLS 1.0"; |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#getDigestSize()
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*/
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public int getDigestSize() |
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{
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return 16 + 20; |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#update(byte)
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*/
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public void update(byte in) |
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{
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md5.update(in); |
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sha1.update(in); |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#update(byte[],int,int)
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*/
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public void update(byte[] in, int inOff, int len) |
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{
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md5.update(in, inOff, len); |
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sha1.update(in, inOff, len); |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#doFinal(byte[],int)
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*/
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public int doFinal(byte[] out, int outOff) |
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{
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int i1 = md5.doFinal(out, outOff); |
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int i2 = sha1.doFinal(out, outOff + 16); |
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return i1 + i2; |
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}
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/**
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* @see org.bouncycastle.crypto.Digest#reset()
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*/
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public void reset() |
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{
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md5.reset(); |
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sha1.reset(); |
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}
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}
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