org.openeuler

类 SM2SignatureSpi

java.lang.Object

java.security.SignatureSpi

org.openeuler.SM2SignatureSpi

直接已知子类:

SM2SignatureSpi.sm3WithSM2

public class SM2SignatureSpi
extends SignatureSpi

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	SM2SignatureSpi.sm3WithSM2

字段概要

字段

限定符和类型	字段和说明
private ByteArrayOutputStream	byteBuf
private MessageDigest	digest
private ECPrivateKey	privateKey
private ECPublicKey	publicKey
private ECPoint	pubPoint
private SM2ParameterSpec	sigParams
private byte[]	z

从类继承的字段 java.security.SignatureSpi

appRandom

构造器概要

构造器

构造器和说明
SM2SignatureSpi()
SM2SignatureSpi(MessageDigest digest)

方法概要

限定符和类型	方法和说明
private BigInteger[]	decodeSignature(BigInteger n, byte[] sig)
private byte[]	encodeSignature(BigInteger n, BigInteger r, BigInteger s)
protected Object	engineGetParameter(String param) 已过时。
protected AlgorithmParameters	engineGetParameters()
protected void	engineInitSign(PrivateKey privateKey) Initializes this signature object with the specified private key for signing operations.
protected void	engineInitVerify(PublicKey publicKey) Initializes this signature object with the specified public key for verification operations.
protected void	engineSetParameter(AlgorithmParameterSpec params)
protected void	engineSetParameter(String param, Object value) 已过时。
protected byte[]	engineSign() Returns the signature bytes of all the data updated so far.
protected void	engineUpdate(byte b) Updates the data to be signed or verified using the specified byte.
protected void	engineUpdate(byte[] b, int off, int len) Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.
protected boolean	engineVerify(byte[] sigBytes) Verifies the passed-in signature.
protected byte[]	getID() Get user ID
private byte[]	getZ(ECParameterSpec ecParams, byte[] entLen, byte[] ID)
private static boolean	isCompatible(SM2ParameterSpec sigParams, ECParameterSpec keyParams)

从类继承的方法 java.security.SignatureSpi

clone, engineInitSign, engineSign, engineUpdate, engineVerify

从类继承的方法 java.lang.Object

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

字段详细资料

digest

private final MessageDigest digest

privateKey

private ECPrivateKey privateKey

publicKey

private ECPublicKey publicKey

sigParams

private SM2ParameterSpec sigParams

pubPoint

private ECPoint pubPoint

byteBuf

private ByteArrayOutputStream byteBuf

z

private byte[] z

构造器详细资料

SM2SignatureSpi

public SM2SignatureSpi()
                throws NoSuchAlgorithmException

抛出:

NoSuchAlgorithmException

SM2SignatureSpi

public SM2SignatureSpi(MessageDigest digest)

方法详细资料

engineInitVerify

protected void engineInitVerify(PublicKey publicKey)
                         throws InvalidKeyException

Initializes this signature object with the specified public key for verification operations.

指定者:

engineInitVerify 在类中 SignatureSpi

参数:

publicKey - the public key of the identity whose signature is going to be verified.

抛出:

InvalidKeyException

engineInitSign

protected void engineInitSign(PrivateKey privateKey)
                       throws InvalidKeyException

Initializes this signature object with the specified private key for signing operations.

指定者:

engineInitSign 在类中 SignatureSpi

参数:

privateKey - the private key of the identity whose signature will be generated.

抛出:

InvalidKeyException

getID

protected byte[] getID()

Get user ID

返回:

ID

engineUpdate

protected void engineUpdate(byte b)
                     throws SignatureException

Updates the data to be signed or verified using the specified byte.

指定者:

engineUpdate 在类中 SignatureSpi

参数:

b - the byte to use for the update.

抛出:

SignatureException - if the engine is not initialized properly.

engineUpdate

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

Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.

指定者:

engineUpdate 在类中 SignatureSpi

参数:

b - the array of bytes

off - the offset to start from in the array of bytes

len - the number of bytes to use, starting at offset

抛出:

SignatureException - if the engine is not initialized properly

engineSign

protected byte[] engineSign()
                     throws SignatureException

Returns the signature bytes of all the data updated so far. The format of the signature depends on the underlying signature scheme.

指定者:

engineSign 在类中 SignatureSpi

返回:

the signature bytes of the signing operation's result.

抛出:

SignatureException - if the engine is not initialized properly or if this signature algorithm is unable to process the input data provided.

engineVerify

protected boolean engineVerify(byte[] sigBytes)
                        throws SignatureException

Verifies the passed-in signature.

指定者:

engineVerify 在类中 SignatureSpi

参数:

sigBytes - the signature bytes to be verified.

返回:

true if the signature was verified, false if not.

抛出:

SignatureException - if the engine is not initialized properly, the passed-in signature is improperly encoded or of the wrong type, if this signature algorithm is unable to process the input data provided, etc.

engineSetParameter

@Deprecated
protected void engineSetParameter(String param,
                                               Object value)
                                        throws InvalidParameterException

已过时。

指定者:

engineSetParameter 在类中 SignatureSpi

抛出:

InvalidParameterException

engineSetParameter

protected void engineSetParameter(AlgorithmParameterSpec params)
                           throws InvalidAlgorithmParameterException

覆盖:

engineSetParameter 在类中 SignatureSpi

抛出:

InvalidAlgorithmParameterException

engineGetParameter

@Deprecated
protected Object engineGetParameter(String param)
                                          throws InvalidParameterException

已过时。

指定者:

engineGetParameter 在类中 SignatureSpi

抛出:

InvalidParameterException

engineGetParameters

protected AlgorithmParameters engineGetParameters()

覆盖:

engineGetParameters 在类中 SignatureSpi

getZ

private byte[] getZ(ECParameterSpec ecParams,
                    byte[] entLen,
                    byte[] ID)

encodeSignature

private byte[] encodeSignature(BigInteger n,
                               BigInteger r,
                               BigInteger s)
                        throws IOException

抛出:

IOException

decodeSignature

private BigInteger[] decodeSignature(BigInteger n,
                                     byte[] sig)
                              throws SignatureException

抛出:

SignatureException

isCompatible

private static boolean isCompatible(SM2ParameterSpec sigParams,
                                    ECParameterSpec keyParams)