![](http://www.gnu-darwin.org/hexley-gd-sm.png)
|
Bouncy Castle Cryptography 1.11 API Specification: Interface DSA
org.bouncycastle.crypto
Interface DSA
- All Known Implementing Classes:
- ECDSASigner, DSASigner
- public interface DSA
interface for classes implementing the Digital Signature Algorithm
Method Summary |
java.math.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,
java.math.BigInteger r,
java.math.BigInteger s)
verify the message message against the signature values r and s. |
init
public void init(boolean forSigning,
CipherParameters param)
- initialise the signer for signature generation or signature
verification.
- Parameters:
forSigning - true if we are generating a signature, false
otherwise.param - key parameters for signature generation.
generateSignature
public java.math.BigInteger[] generateSignature(byte[] message)
- sign the passed in message (usually the output of a hash function).
- Parameters:
message - the message to be signed.- Returns:
- two big integers representing the r and s values respectively.
verifySignature
public boolean verifySignature(byte[] message,
java.math.BigInteger r,
java.math.BigInteger s)
- verify the message message against the signature values r and s.
- Parameters:
message - the message that was supposed to have been signed.r - the r signature value.s - the s signature value.
|