Package cn.sinozg.applet.common.core.model

Class StandardSm2Engine

java.lang.Object
cn.sinozg.applet.common.core.model.StandardSm2Engine
public class StandardSm2Engine extends Object
Since:
2024-12-03 13:55
Author:
xieyubin

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private int
    curveLength
     
    private final org.bouncycastle.crypto.Digest
    digest
     
    private org.bouncycastle.crypto.params.ECKeyParameters
    ecKey
     
    private org.bouncycastle.crypto.params.ECDomainParameters
    ecParams
     
    private boolean
    forEncryption
     
    private final org.bouncycastle.crypto.engines.SM2Engine.Mode
    mode
     
    private SecureRandom
    random
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    StandardSm2Engine()
     
    StandardSm2Engine(org.bouncycastle.crypto.Digest digest)
     
    StandardSm2Engine(org.bouncycastle.crypto.Digest digest, org.bouncycastle.crypto.engines.SM2Engine.Mode mode)
     
    StandardSm2Engine(org.bouncycastle.crypto.engines.SM2Engine.Mode mode)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    private void
    addFieldElement(org.bouncycastle.crypto.Digest digest, org.bouncycastle.math.ec.ECFieldElement v)
     
    private byte[]
    convertToAsn1(org.bouncycastle.math.ec.ECPoint c1P, byte[] c2, byte[] c3)
     
    protected org.bouncycastle.math.ec.ECMultiplier
    createBasePointMultiplier()
     
    private byte[]
    decrypt(byte[] in, int inOff, int inLen)
    解密
    private byte[]
    encrypt(byte[] in, int inOff, int inLen)
    加密
    int
    getOutputSize(int inputLen)
     
    void
    init(boolean forEncryption, org.bouncycastle.crypto.CipherParameters param)
     
    private void
    kdf(org.bouncycastle.crypto.Digest digest, org.bouncycastle.math.ec.ECPoint c1, byte[] encData)
     
    private BigInteger
    nextK()
     
    private boolean
    notEncrypted(byte[] encData, byte[] in, int inOff)
     
    byte[]
    processBlock(byte[] in, int inOff, int inLen)
     
    private void
    xor(byte[] data, byte[] kdfOut, int dOff, int dRemaining)
     

    Methods inherited from class java.lang.Object

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

  • Field Details

    • digest

      private final org.bouncycastle.crypto.Digest digest

    • mode

      private final org.bouncycastle.crypto.engines.SM2Engine.Mode mode

    • forEncryption

      private boolean forEncryption

    • ecKey

      private org.bouncycastle.crypto.params.ECKeyParameters ecKey

    • ecParams

      private org.bouncycastle.crypto.params.ECDomainParameters ecParams

    • curveLength

      private int curveLength

    • random

      private SecureRandom random

  • Constructor Details

    • StandardSm2Engine

      public StandardSm2Engine()

    • StandardSm2Engine

      public StandardSm2Engine(org.bouncycastle.crypto.engines.SM2Engine.Mode mode)

    • StandardSm2Engine

      public StandardSm2Engine(org.bouncycastle.crypto.Digest digest)

    • StandardSm2Engine

      public StandardSm2Engine(org.bouncycastle.crypto.Digest digest, org.bouncycastle.crypto.engines.SM2Engine.Mode mode)

  • Method Details

    • init

      public void init(boolean forEncryption, org.bouncycastle.crypto.CipherParameters param)

    • processBlock

      public byte[] processBlock(byte[] in, int inOff, int inLen) throws org.bouncycastle.crypto.InvalidCipherTextException
      Throws:
      org.bouncycastle.crypto.InvalidCipherTextException

    • getOutputSize

      public int getOutputSize(int inputLen)

    • createBasePointMultiplier

      protected org.bouncycastle.math.ec.ECMultiplier createBasePointMultiplier()

    • encrypt

      private byte[] encrypt(byte[] in, int inOff, int inLen)
      加密
      Parameters:
      in -
      inOff -
      inLen -
      Returns:

    • decrypt

      private byte[] decrypt(byte[] in, int inOff, int inLen) throws org.bouncycastle.crypto.InvalidCipherTextException
      解密
      Parameters:
      in -
      inOff -
      inLen -
      Returns:
      Throws:
      org.bouncycastle.crypto.InvalidCipherTextException

    • notEncrypted

      private boolean notEncrypted(byte[] encData, byte[] in, int inOff)

    • kdf

      private void kdf(org.bouncycastle.crypto.Digest digest, org.bouncycastle.math.ec.ECPoint c1, byte[] encData)

    • xor

      private void xor(byte[] data, byte[] kdfOut, int dOff, int dRemaining)

    • nextK

      private BigInteger nextK()

    • addFieldElement

      private void addFieldElement(org.bouncycastle.crypto.Digest digest, org.bouncycastle.math.ec.ECFieldElement v)

    • convertToAsn1

      private byte[] convertToAsn1(org.bouncycastle.math.ec.ECPoint c1P, byte[] c2, byte[] c3)