org.apache.sshd.common.signature

Class SignatureECDSA

java.lang.Object

org.apache.sshd.common.signature.AbstractSignature

org.apache.sshd.common.signature.SignatureECDSA

All Implemented Interfaces:

AlgorithmNameProvider, Signature

Direct Known Subclasses:

SignatureECDSA.SignatureECDSA256, SignatureECDSA.SignatureECDSA384, SignatureECDSA.SignatureECDSA521

public class SignatureECDSA
extends AbstractSignature

Signature algorithm for EC keys using ECDSA.

Author:

Apache MINA SSHD Project

See Also:

RFC3278 section 8.2

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SignatureECDSA.SignatureECDSA256
static class	SignatureECDSA.SignatureECDSA384
static class	SignatureECDSA.SignatureECDSA521

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SignatureECDSA(String algo)

Method Summary

Modifier and Type	Method and Description
byte[]	sign(SessionContext session) Compute the signature
boolean	verify(SessionContext session, byte[] sig) Verify against the given signature

Methods inherited from class org.apache.sshd.common.signature.AbstractSignature

doInitSignature, doVerify, extractEncodedSignature, extractEncodedSignature, getAlgorithm, getSignature, initSigner, initVerifier, toString, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.sshd.common.signature.Signature

getSshAlgorithmName, update

Constructor Detail

SignatureECDSA

protected SignatureECDSA(String algo)

Method Detail

sign

public byte[] sign(SessionContext session)
            throws Exception

Description copied from interface: Signature

Compute the signature

Specified by:

sign in interface Signature

Overrides:

sign in class AbstractSignature

Parameters:

session - The SessionContext for calling this method - may be null if not called within a session context

Returns:

The signature value

Throws:

Exception - If failed to calculate the signature

verify

public boolean verify(SessionContext session,
                      byte[] sig)
               throws Exception

Description copied from interface: Signature

Verify against the given signature

Parameters:

session - The SessionContext for calling this method - may be null if not called within a session context

sig - The signed data

Returns:

true if signature is valid

Throws:

Exception - If failed to extract signed data for validation