org.bouncycastle.jcajce.provider.asymmetric.edec

Class SignatureSpi

java.lang.Object

java.security.SignatureSpi

org.bouncycastle.jcajce.provider.asymmetric.edec.SignatureSpi

Direct Known Subclasses:

SignatureSpi.Ed25519, SignatureSpi.Ed448, SignatureSpi.EdDSA

public class SignatureSpi
extends java.security.SignatureSpi

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SignatureSpi.Ed25519
static class	SignatureSpi.Ed448
static class	SignatureSpi.EdDSA

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	context
protected boolean	parametersSet
protected boolean	prehash

Fields inherited from class java.security.SignatureSpi

appRandom

Method Summary

Modifier and Type	Method and Description
protected void	applyParams(boolean prehash, byte[] context) Apply the RFC 8032 instance selectors.
protected void	checkCurve(java.lang.String curveName) When the spec names a curve, reject it if it cannot match a single-algorithm SPI (the per-curve Ed25519 / Ed448 SignatureSpi subclasses).
protected java.lang.Object	engineGetParameter(java.lang.String s)
protected java.security.AlgorithmParameters	engineGetParameters()
protected void	engineInitSign(java.security.PrivateKey privateKey)
protected void	engineInitVerify(java.security.PublicKey publicKey)
protected void	engineSetParameter(java.security.spec.AlgorithmParameterSpec params)
protected void	engineSetParameter(java.lang.String s, java.lang.Object o)
protected byte[]	engineSign()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] bytes, int off, int len)
protected boolean	engineVerify(byte[] signature)

Methods inherited from class java.security.SignatureSpi

clone, engineInitSign, engineSign, engineUpdate, engineVerify

Methods inherited from class java.lang.Object

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

Field Detail

prehash

protected boolean prehash

context

protected byte[] context

parametersSet

protected boolean parametersSet

Method Detail

engineInitVerify

protected void engineInitVerify(java.security.PublicKey publicKey)
                         throws java.security.InvalidKeyException

Specified by:

engineInitVerify in class java.security.SignatureSpi

Throws:

java.security.InvalidKeyException

engineInitSign

protected void engineInitSign(java.security.PrivateKey privateKey)
                       throws java.security.InvalidKeyException

Specified by:

engineInitSign in class java.security.SignatureSpi

Throws:

java.security.InvalidKeyException

engineUpdate

protected void engineUpdate(byte b)
                     throws java.security.SignatureException

Specified by:

engineUpdate in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineUpdate

protected void engineUpdate(byte[] bytes,
                            int off,
                            int len)
                     throws java.security.SignatureException

Specified by:

engineUpdate in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineSign

protected byte[] engineSign()
                     throws java.security.SignatureException

Specified by:

engineSign in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineVerify

protected boolean engineVerify(byte[] signature)
                        throws java.security.SignatureException

Specified by:

engineVerify in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineSetParameter

protected void engineSetParameter(java.security.spec.AlgorithmParameterSpec params)
                           throws java.security.InvalidAlgorithmParameterException

Overrides:

engineSetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidAlgorithmParameterException

applyParams

protected final void applyParams(boolean prehash,
                                 byte[] context)
                          throws java.security.InvalidAlgorithmParameterException

Apply the RFC 8032 instance selectors. Parameters must be set before initSign / initVerify (the signer that consumes them is built at init time), matching the SunEC EdDSA behaviour.

Throws:

java.security.InvalidAlgorithmParameterException

checkCurve

protected final void checkCurve(java.lang.String curveName)
                         throws java.security.InvalidAlgorithmParameterException

When the spec names a curve, reject it if it cannot match a single-algorithm SPI (the per-curve Ed25519 / Ed448 SignatureSpi subclasses). The generic EdDSA SPI (algorithm == null) defers the curve to the key.

Throws:

java.security.InvalidAlgorithmParameterException

engineSetParameter

protected void engineSetParameter(java.lang.String s,
                                  java.lang.Object o)
                           throws java.security.InvalidParameterException

Specified by:

engineSetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

engineGetParameter

protected java.lang.Object engineGetParameter(java.lang.String s)
                                       throws java.security.InvalidParameterException

Specified by:

engineGetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

engineGetParameters

protected java.security.AlgorithmParameters engineGetParameters()

Overrides:

engineGetParameters in class java.security.SignatureSpi