public class HashCommitter extends java.lang.Object implements Committer
Use this class if you can enforce fixed length for messages. If you need something more general, use the GeneralHashCommitter.
Constructor and Description |
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HashCommitter(ExtendedDigest digest,
java.security.SecureRandom random)
Base Constructor.
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Modifier and Type | Method and Description |
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Commitment |
commit(byte[] message)
Generate a commitment for the passed in message.
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boolean |
isRevealed(Commitment commitment,
byte[] message)
Return true if the passed in commitment represents a commitment to the passed in message.
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public HashCommitter(ExtendedDigest digest, java.security.SecureRandom random)
digest
- digest to use for creating commitments.random
- source of randomness for generating secrets.public Commitment commit(byte[] message)
public boolean isRevealed(Commitment commitment, byte[] message)
isRevealed
in interface Committer
commitment
- a commitment previously generated.message
- the message that was expected to have been committed to.