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public interface DSA
interface for classes implementing algorithms modeled similar to the Digital Signature Alorithm.
Method Summary | |
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BigInteger[] |
generateSignature(byte[] message)
sign the passed in message (usually the output of a hash function). |
void |
init(boolean forSigning,
CipherParameters param)
initialise the signer for signature generation or signature verification. |
boolean |
verifySignature(byte[] message,
BigInteger r,
BigInteger s)
verify the message message against the signature values r and s. |
Method Detail |
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void init(boolean forSigning, CipherParameters param)
forSigning
- true if we are generating a signature, false
otherwise.param
- key parameters for signature generation.BigInteger[] generateSignature(byte[] message)
message
- the message to be signed.
boolean verifySignature(byte[] message, BigInteger r, BigInteger s)
message
- the message that was supposed to have been signed.r
- the r signature value.s
- the s signature value.
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