com.mindbright.ssh2

Class SSH2ECDSASHA2NIST

java.lang.Object

com.mindbright.ssh2.SSH2Signature

com.mindbright.ssh2.SSH2SimpleSignature

com.mindbright.ssh2.SSH2ECDSASHA2NIST

All Implemented Interfaces:

SSH2PKISigner

Direct Known Subclasses:

SSH2ECDSASHA2NIST.P256, SSH2ECDSASHA2NIST.P384, SSH2ECDSASHA2NIST.P521

public abstract class SSH2ECDSASHA2NIST
extends SSH2SimpleSignature

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SSH2ECDSASHA2NIST.P256
static class	SSH2ECDSASHA2NIST.P384
static class	SSH2ECDSASHA2NIST.P521

Field Summary

Fields inherited from class com.mindbright.ssh2.SSH2SimpleSignature

draftIncompatibleSignature, signatureAlgorithm, ssh2KeyFormat

Fields inherited from class com.mindbright.ssh2.SSH2Signature

algorithm, pubKeyBlob, publicKey, signature

Constructor Summary

Constructors

Constructor and Description
SSH2ECDSASHA2NIST(java.lang.String algo, java.lang.String sshname, java.lang.String curve)

Method Summary

Methods

Modifier and Type	Method and Description
protected java.security.PublicKey	decodePublicKey(byte[] pubKeyBlob) Decode a public key blob.
protected byte[]	encodePublicKey(java.security.PublicKey publicKey) Encode the given public key into a public key blob.
static java.security.spec.ECParameterSpec	getParamsForCurve(java.lang.String curve)
byte[]	sign(byte[] data) Sign the given data.
boolean	verify(byte[] sigBlob, byte[] data) Verify that the given signature matches the given data and the public key.

Methods inherited from class com.mindbright.ssh2.SSH2SimpleSignature

decodeSignature, encodeSignature, getKeyFormat, getSignatureAlgorithm, getVerifyInstance, setIncompatibility

Methods inherited from class com.mindbright.ssh2.SSH2Signature

clearSensitiveData, getAlgorithmName, getEncodingInstance, getInstance, getPublicKey, getPublicKeyBlob, initSign, initVerify, initVerify, setPublicKey

Methods inherited from class java.lang.Object

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

Constructor Detail

SSH2ECDSASHA2NIST

public SSH2ECDSASHA2NIST(java.lang.String algo,
                 java.lang.String sshname,
                 java.lang.String curve)

Method Detail

sign

public byte[] sign(byte[] data)
            throws SSH2SignatureException

Description copied from class: SSH2Signature

Sign the given data. The object must have been initialized for signing first.

Specified by:

sign in interface SSH2PKISigner

Overrides:

sign in class SSH2Signature

Parameters:

data - Data to sign.

Returns:

A signature blob encoded in the ssh format.

Throws:

SSH2SignatureException

verify

public boolean verify(byte[] sigBlob,
             byte[] data)
               throws SSH2SignatureException

Description copied from class: SSH2Signature

Verify that the given signature matches the given data and the public key. The public key is given in the initialization call.

Overrides:

verify in class SSH2Signature

Parameters:

sigBlob - Signature blob encoded in the ssh format.

data - Signed data.

Returns:

True if the signature matches.

Throws:

SSH2SignatureException

encodePublicKey

protected byte[] encodePublicKey(java.security.PublicKey publicKey)
                          throws SSH2Exception

Description copied from class: SSH2Signature

Encode the given public key into a public key blob.

Specified by:

encodePublicKey in class SSH2Signature

Parameters:

publicKey - The public key to encode. Must be an instance of DSAPublicKey.

Returns:

A byte array containing the key suitably encoded.

Throws:

SSH2Exception

getParamsForCurve

public static java.security.spec.ECParameterSpec getParamsForCurve(java.lang.String curve)

decodePublicKey

protected java.security.PublicKey decodePublicKey(byte[] pubKeyBlob)
                                           throws SSH2Exception

Description copied from class: SSH2Signature

Decode a public key blob.

Specified by:

decodePublicKey in class SSH2Signature

Parameters:

pubKeyBlob - A byte array containing a public key blob.

Returns:

A Publickey instance.

Throws:

SSH2Exception