Package org.kapott.cryptalgs

Class PKCS1_15

java.lang.Object

java.security.SignatureSpi

org.kapott.cryptalgs.PKCS1_15

public class PKCS1_15
extends java.security.SignatureSpi

Field Summary

Fields

Modifier and Type	Field	Description
private SignatureParamSpec	param
private java.io.ByteArrayOutputStream	plainmsg
private java.security.PrivateKey	privKey
private java.security.interfaces.RSAPublicKey	pubKey

Fields inherited from class java.security.SignatureSpi

appRandom

Constructor Summary

Constructors

Constructor	Description
PKCS1_15()

Method Summary

Modifier and Type	Method	Description
static byte[]	createDigestInfo(SignatureParamSpec spec, byte[] hash)
private static byte[]	emsa_encode(SignatureParamSpec spec, byte[] msg, int emLen)
protected java.lang.Object	engineGetParameter(java.lang.String param1)	Deprecated.
protected void	engineInitSign(java.security.PrivateKey privateKey)
protected void	engineInitVerify(java.security.PublicKey publicKey)
protected void	engineSetParameter(java.lang.String param1, java.lang.Object value)	Deprecated.
protected void	engineSetParameter(java.security.spec.AlgorithmParameterSpec params)
protected byte[]	engineSign()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] b, int off, int len)
protected boolean	engineVerify(byte[] sigBytes)
private static byte[]	getHashAlgOID(SignatureParamSpec spec)
static java.security.MessageDigest	getMessageDigest(SignatureParamSpec spec)
private static byte[]	hash(SignatureParamSpec spec, byte[] msg)
private static byte[]	i2osp(java.math.BigInteger x, int len)
private static java.math.BigInteger	os2ip(byte[] bytes)
private static byte[]	sign(SignatureParamSpec spec, java.security.PrivateKey privKey, byte[] msg)
private static java.math.BigInteger	sp1(java.security.PrivateKey key, java.math.BigInteger m)
private static boolean	verify(SignatureParamSpec spec, java.security.PublicKey pubKey, byte[] msg, byte[] signature)
private static java.math.BigInteger	vp1(java.security.interfaces.RSAPublicKey key, java.math.BigInteger s)

Methods inherited from class java.security.SignatureSpi

clone, engineGetParameters, engineInitSign, engineSign, engineUpdate, engineVerify

Methods inherited from class java.lang.Object

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

Field Detail

pubKey

private java.security.interfaces.RSAPublicKey pubKey

privKey

private java.security.PrivateKey privKey

param

private SignatureParamSpec param

plainmsg

private java.io.ByteArrayOutputStream plainmsg

Constructor Detail

PKCS1_15

public PKCS1_15()

Method Detail

engineSetParameter

@Deprecated
protected void engineSetParameter(java.lang.String param1,
                                  java.lang.Object value)
                           throws java.security.InvalidParameterException

Deprecated.

Specified by:

engineSetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

engineSetParameter

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

Overrides:

engineSetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidAlgorithmParameterException

engineGetParameter

@Deprecated
protected java.lang.Object engineGetParameter(java.lang.String param1)
                                       throws java.security.InvalidParameterException

Deprecated.

Specified by:

engineGetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

getMessageDigest

public static java.security.MessageDigest getMessageDigest(SignatureParamSpec spec)

engineInitSign

protected void engineInitSign(java.security.PrivateKey privateKey)

Specified by:

engineInitSign in class java.security.SignatureSpi

engineInitVerify

protected void engineInitVerify(java.security.PublicKey publicKey)

Specified by:

engineInitVerify in class java.security.SignatureSpi

engineUpdate

protected void engineUpdate(byte b)

Specified by:

engineUpdate in class java.security.SignatureSpi

engineUpdate

protected void engineUpdate(byte[] b,
                            int off,
                            int len)

Specified by:

engineUpdate in class java.security.SignatureSpi

engineSign

protected byte[] engineSign()

Specified by:

engineSign in class java.security.SignatureSpi

engineVerify

protected boolean engineVerify(byte[] sigBytes)

Specified by:

engineVerify in class java.security.SignatureSpi

i2osp

private static byte[] i2osp(java.math.BigInteger x,
                            int len)

os2ip

private static java.math.BigInteger os2ip(byte[] bytes)

sp1

private static java.math.BigInteger sp1(java.security.PrivateKey key,
                                        java.math.BigInteger m)

vp1

private static java.math.BigInteger vp1(java.security.interfaces.RSAPublicKey key,
                                        java.math.BigInteger s)

sign

private static byte[] sign(SignatureParamSpec spec,
                           java.security.PrivateKey privKey,
                           byte[] msg)

verify

private static boolean verify(SignatureParamSpec spec,
                              java.security.PublicKey pubKey,
                              byte[] msg,
                              byte[] signature)

hash

private static byte[] hash(SignatureParamSpec spec,
                           byte[] msg)

getHashAlgOID

private static byte[] getHashAlgOID(SignatureParamSpec spec)

createDigestInfo

public static byte[] createDigestInfo(SignatureParamSpec spec,
                                      byte[] hash)

emsa_encode

private static byte[] emsa_encode(SignatureParamSpec spec,
                                  byte[] msg,
                                  int emLen)