public class sun.security.util.ECUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: sun.security.util.ECUtil
  super_class: java.lang.Object
{
  public static java.security.spec.ECPoint decodePoint(byte[], java.security.spec.EllipticCurve);
    descriptor: ([BLjava/security/spec/EllipticCurve;)Ljava/security/spec/ECPoint;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=7, locals=5, args_size=2
        start local 0 // byte[] data
        start local 1 // java.security.spec.EllipticCurve curve
         0: .line 41
            aload 0 /* data */
            arraylength
            ifeq 1
            aload 0 /* data */
            iconst_0
            baload
            iconst_4
            if_icmpeq 2
         1: .line 42
      StackMap locals:
      StackMap stack:
            new java.io.IOException
            dup
            ldc "Only uncompressed point format supported"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 46
      StackMap locals:
      StackMap stack:
            aload 0 /* data */
            arraylength
            iconst_1
            isub
            iconst_2
            idiv
            istore 2 /* n */
        start local 2 // int n
         3: .line 47
            iload 2 /* n */
            aload 1 /* curve */
            invokevirtual java.security.spec.EllipticCurve.getField:()Ljava/security/spec/ECField;
            invokeinterface java.security.spec.ECField.getFieldSize:()I
            bipush 7
            iadd
            iconst_3
            ishr
            if_icmpeq 5
         4: .line 48
            new java.io.IOException
            dup
            ldc "Point does not match field size"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 51
      StackMap locals: int
      StackMap stack:
            aload 0 /* data */
            iconst_1
            iconst_1
            iload 2 /* n */
            iadd
            invokestatic java.util.Arrays.copyOfRange:([BII)[B
            astore 3 /* xb */
        start local 3 // byte[] xb
         6: .line 52
            aload 0 /* data */
            iload 2 /* n */
            iconst_1
            iadd
            iload 2 /* n */
            iconst_1
            iadd
            iload 2 /* n */
            iadd
            invokestatic java.util.Arrays.copyOfRange:([BII)[B
            astore 4 /* yb */
        start local 4 // byte[] yb
         7: .line 54
            new java.security.spec.ECPoint
            dup
            new java.math.BigInteger
            dup
            iconst_1
            aload 3 /* xb */
            invokespecial java.math.BigInteger.<init>:(I[B)V
            new java.math.BigInteger
            dup
            iconst_1
            aload 4 /* yb */
            invokespecial java.math.BigInteger.<init>:(I[B)V
            invokespecial java.security.spec.ECPoint.<init>:(Ljava/math/BigInteger;Ljava/math/BigInteger;)V
            areturn
        end local 4 // byte[] yb
        end local 3 // byte[] xb
        end local 2 // int n
        end local 1 // java.security.spec.EllipticCurve curve
        end local 0 // byte[] data
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    8     0   data  [B
            0    8     1  curve  Ljava/security/spec/EllipticCurve;
            3    8     2      n  I
            6    8     3     xb  [B
            7    8     4     yb  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
       Name  Flags
      data   
      curve  

  public static byte[] encodePoint(java.security.spec.ECPoint, java.security.spec.EllipticCurve);
    descriptor: (Ljava/security/spec/ECPoint;Ljava/security/spec/EllipticCurve;)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=6, args_size=2
        start local 0 // java.security.spec.ECPoint point
        start local 1 // java.security.spec.EllipticCurve curve
         0: .line 60
            aload 1 /* curve */
            invokevirtual java.security.spec.EllipticCurve.getField:()Ljava/security/spec/ECField;
            invokeinterface java.security.spec.ECField.getFieldSize:()I
            bipush 7
            iadd
            iconst_3
            ishr
            istore 2 /* n */
        start local 2 // int n
         1: .line 61
            aload 0 /* point */
            invokevirtual java.security.spec.ECPoint.getAffineX:()Ljava/math/BigInteger;
            invokevirtual java.math.BigInteger.toByteArray:()[B
            invokestatic sun.security.util.ECUtil.trimZeroes:([B)[B
            astore 3 /* xb */
        start local 3 // byte[] xb
         2: .line 62
            aload 0 /* point */
            invokevirtual java.security.spec.ECPoint.getAffineY:()Ljava/math/BigInteger;
            invokevirtual java.math.BigInteger.toByteArray:()[B
            invokestatic sun.security.util.ECUtil.trimZeroes:([B)[B
            astore 4 /* yb */
        start local 4 // byte[] yb
         3: .line 63
            aload 3 /* xb */
            arraylength
            iload 2 /* n */
            if_icmpgt 4
            aload 4 /* yb */
            arraylength
            iload 2 /* n */
            if_icmple 7
         4: .line 64
      StackMap locals: int byte[] byte[]
      StackMap stack:
            new java.lang.RuntimeException
            dup
         5: .line 65
            ldc "Point coordinates do not match field size"
         6: .line 64
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         7: .line 67
      StackMap locals:
      StackMap stack:
            iconst_1
            iload 2 /* n */
            iconst_1
            ishl
            iadd
            newarray 8
            astore 5 /* b */
        start local 5 // byte[] b
         8: .line 68
            aload 5 /* b */
            iconst_0
            iconst_4
            bastore
         9: .line 69
            aload 3 /* xb */
            iconst_0
            aload 5 /* b */
            iload 2 /* n */
            aload 3 /* xb */
            arraylength
            isub
            iconst_1
            iadd
            aload 3 /* xb */
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        10: .line 70
            aload 4 /* yb */
            iconst_0
            aload 5 /* b */
            aload 5 /* b */
            arraylength
            aload 4 /* yb */
            arraylength
            isub
            aload 4 /* yb */
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        11: .line 71
            aload 5 /* b */
            areturn
        end local 5 // byte[] b
        end local 4 // byte[] yb
        end local 3 // byte[] xb
        end local 2 // int n
        end local 1 // java.security.spec.EllipticCurve curve
        end local 0 // java.security.spec.ECPoint point
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   12     0  point  Ljava/security/spec/ECPoint;
            0   12     1  curve  Ljava/security/spec/EllipticCurve;
            1   12     2      n  I
            2   12     3     xb  [B
            3   12     4     yb  [B
            8   12     5      b  [B
    MethodParameters:
       Name  Flags
      point  
      curve  

  public static byte[] trimZeroes(byte[]);
    descriptor: ([B)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // byte[] b
         0: .line 75
            iconst_0
            istore 1 /* i */
        start local 1 // int i
         1: .line 76
            goto 3
         2: .line 77
      StackMap locals: int
      StackMap stack:
            iinc 1 /* i */ 1
         3: .line 76
      StackMap locals:
      StackMap stack:
            iload 1 /* i */
            aload 0 /* b */
            arraylength
            iconst_1
            isub
            if_icmpge 4
            aload 0 /* b */
            iload 1 /* i */
            baload
            ifeq 2
         4: .line 79
      StackMap locals:
      StackMap stack:
            iload 1 /* i */
            ifne 6
         5: .line 80
            aload 0 /* b */
            areturn
         6: .line 83
      StackMap locals:
      StackMap stack:
            aload 0 /* b */
            iload 1 /* i */
            aload 0 /* b */
            arraylength
            invokestatic java.util.Arrays.copyOfRange:([BII)[B
            areturn
        end local 1 // int i
        end local 0 // byte[] b
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0     b  [B
            1    7     1     i  I
    MethodParameters:
      Name  Flags
      b     

  private static java.security.KeyFactory getKeyFactory();
    descriptor: ()Ljava/security/KeyFactory;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=0
         0: .line 88
            ldc "EC"
            ldc "SunEC"
            invokestatic java.security.KeyFactory.getInstance:(Ljava/lang/String;Ljava/lang/String;)Ljava/security/KeyFactory;
         1: areturn
         2: .line 89
      StackMap locals:
      StackMap stack: java.security.GeneralSecurityException
            astore 0 /* e */
        start local 0 // java.security.GeneralSecurityException e
         3: .line 90
            new java.lang.RuntimeException
            dup
            aload 0 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 0 // java.security.GeneralSecurityException e
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            3    4     0     e  Ljava/security/GeneralSecurityException;
      Exception table:
        from    to  target  type
           0     1       2  Class java.security.NoSuchAlgorithmException
           0     1       2  Class java.security.NoSuchProviderException

  public static java.security.interfaces.ECPublicKey decodeX509ECPublicKey(byte[]);
    descriptor: ([B)Ljava/security/interfaces/ECPublicKey;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // byte[] encoded
         0: .line 96
            invokestatic sun.security.util.ECUtil.getKeyFactory:()Ljava/security/KeyFactory;
            astore 1 /* keyFactory */
        start local 1 // java.security.KeyFactory keyFactory
         1: .line 97
            new java.security.spec.X509EncodedKeySpec
            dup
            aload 0 /* encoded */
            invokespecial java.security.spec.X509EncodedKeySpec.<init>:([B)V
            astore 2 /* keySpec */
        start local 2 // java.security.spec.X509EncodedKeySpec keySpec
         2: .line 99
            aload 1 /* keyFactory */
            aload 2 /* keySpec */
            invokevirtual java.security.KeyFactory.generatePublic:(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;
            checkcast java.security.interfaces.ECPublicKey
            areturn
        end local 2 // java.security.spec.X509EncodedKeySpec keySpec
        end local 1 // java.security.KeyFactory keyFactory
        end local 0 // byte[] encoded
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0     encoded  [B
            1    3     1  keyFactory  Ljava/security/KeyFactory;
            2    3     2     keySpec  Ljava/security/spec/X509EncodedKeySpec;
    Exceptions:
      throws java.security.spec.InvalidKeySpecException
    MethodParameters:
         Name  Flags
      encoded  

  public static byte[] x509EncodeECPublicKey(java.security.spec.ECPoint, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/security/spec/ECPoint;Ljava/security/spec/ECParameterSpec;)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=5, args_size=2
        start local 0 // java.security.spec.ECPoint w
        start local 1 // java.security.spec.ECParameterSpec params
         0: .line 104
            invokestatic sun.security.util.ECUtil.getKeyFactory:()Ljava/security/KeyFactory;
            astore 2 /* keyFactory */
        start local 2 // java.security.KeyFactory keyFactory
         1: .line 105
            new java.security.spec.ECPublicKeySpec
            dup
            aload 0 /* w */
            aload 1 /* params */
            invokespecial java.security.spec.ECPublicKeySpec.<init>:(Ljava/security/spec/ECPoint;Ljava/security/spec/ECParameterSpec;)V
            astore 3 /* keySpec */
        start local 3 // java.security.spec.ECPublicKeySpec keySpec
         2: .line 106
            aload 2 /* keyFactory */
            aload 3 /* keySpec */
            invokevirtual java.security.KeyFactory.generatePublic:(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;
            checkcast sun.security.x509.X509Key
            astore 4 /* key */
        start local 4 // sun.security.x509.X509Key key
         3: .line 108
            aload 4 /* key */
            invokevirtual sun.security.x509.X509Key.getEncoded:()[B
            areturn
        end local 4 // sun.security.x509.X509Key key
        end local 3 // java.security.spec.ECPublicKeySpec keySpec
        end local 2 // java.security.KeyFactory keyFactory
        end local 1 // java.security.spec.ECParameterSpec params
        end local 0 // java.security.spec.ECPoint w
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0           w  Ljava/security/spec/ECPoint;
            0    4     1      params  Ljava/security/spec/ECParameterSpec;
            1    4     2  keyFactory  Ljava/security/KeyFactory;
            2    4     3     keySpec  Ljava/security/spec/ECPublicKeySpec;
            3    4     4         key  Lsun/security/x509/X509Key;
    Exceptions:
      throws java.security.spec.InvalidKeySpecException
    MethodParameters:
        Name  Flags
      w       
      params  

  public static java.security.interfaces.ECPrivateKey decodePKCS8ECPrivateKey(byte[]);
    descriptor: ([B)Ljava/security/interfaces/ECPrivateKey;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // byte[] encoded
         0: .line 113
            invokestatic sun.security.util.ECUtil.getKeyFactory:()Ljava/security/KeyFactory;
            astore 1 /* keyFactory */
        start local 1 // java.security.KeyFactory keyFactory
         1: .line 114
            new java.security.spec.PKCS8EncodedKeySpec
            dup
            aload 0 /* encoded */
            invokespecial java.security.spec.PKCS8EncodedKeySpec.<init>:([B)V
            astore 2 /* keySpec */
        start local 2 // java.security.spec.PKCS8EncodedKeySpec keySpec
         2: .line 116
            aload 1 /* keyFactory */
            aload 2 /* keySpec */
            invokevirtual java.security.KeyFactory.generatePrivate:(Ljava/security/spec/KeySpec;)Ljava/security/PrivateKey;
            checkcast java.security.interfaces.ECPrivateKey
            areturn
        end local 2 // java.security.spec.PKCS8EncodedKeySpec keySpec
        end local 1 // java.security.KeyFactory keyFactory
        end local 0 // byte[] encoded
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0     encoded  [B
            1    3     1  keyFactory  Ljava/security/KeyFactory;
            2    3     2     keySpec  Ljava/security/spec/PKCS8EncodedKeySpec;
    Exceptions:
      throws java.security.spec.InvalidKeySpecException
    MethodParameters:
         Name  Flags
      encoded  

  public static java.security.interfaces.ECPrivateKey generateECPrivateKey(java.math.BigInteger, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/math/BigInteger;Ljava/security/spec/ECParameterSpec;)Ljava/security/interfaces/ECPrivateKey;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // java.math.BigInteger s
        start local 1 // java.security.spec.ECParameterSpec params
         0: .line 121
            invokestatic sun.security.util.ECUtil.getKeyFactory:()Ljava/security/KeyFactory;
            astore 2 /* keyFactory */
        start local 2 // java.security.KeyFactory keyFactory
         1: .line 122
            new java.security.spec.ECPrivateKeySpec
            dup
            aload 0 /* s */
            aload 1 /* params */
            invokespecial java.security.spec.ECPrivateKeySpec.<init>:(Ljava/math/BigInteger;Ljava/security/spec/ECParameterSpec;)V
            astore 3 /* keySpec */
        start local 3 // java.security.spec.ECPrivateKeySpec keySpec
         2: .line 124
            aload 2 /* keyFactory */
            aload 3 /* keySpec */
            invokevirtual java.security.KeyFactory.generatePrivate:(Ljava/security/spec/KeySpec;)Ljava/security/PrivateKey;
            checkcast java.security.interfaces.ECPrivateKey
            areturn
        end local 3 // java.security.spec.ECPrivateKeySpec keySpec
        end local 2 // java.security.KeyFactory keyFactory
        end local 1 // java.security.spec.ECParameterSpec params
        end local 0 // java.math.BigInteger s
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0           s  Ljava/math/BigInteger;
            0    3     1      params  Ljava/security/spec/ECParameterSpec;
            1    3     2  keyFactory  Ljava/security/KeyFactory;
            2    3     3     keySpec  Ljava/security/spec/ECPrivateKeySpec;
    Exceptions:
      throws java.security.spec.InvalidKeySpecException
    MethodParameters:
        Name  Flags
      s       
      params  

  public static java.security.AlgorithmParameters getECParameters(java.security.Provider);
    descriptor: (Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // java.security.Provider p
         0: .line 129
            aload 0 /* p */
            ifnull 3
         1: .line 130
            ldc "EC"
            aload 0 /* p */
            invokestatic java.security.AlgorithmParameters.getInstance:(Ljava/lang/String;Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
         2: areturn
         3: .line 133
      StackMap locals:
      StackMap stack:
            ldc "EC"
            invokestatic java.security.AlgorithmParameters.getInstance:(Ljava/lang/String;)Ljava/security/AlgorithmParameters;
         4: areturn
         5: .line 134
      StackMap locals:
      StackMap stack: java.security.NoSuchAlgorithmException
            astore 1 /* nsae */
        start local 1 // java.security.NoSuchAlgorithmException nsae
         6: .line 135
            new java.lang.RuntimeException
            dup
            aload 1 /* nsae */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.security.NoSuchAlgorithmException nsae
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0     p  Ljava/security/Provider;
            6    7     1  nsae  Ljava/security/NoSuchAlgorithmException;
      Exception table:
        from    to  target  type
           0     2       5  Class java.security.NoSuchAlgorithmException
           3     4       5  Class java.security.NoSuchAlgorithmException
    MethodParameters:
      Name  Flags
      p     

  public static byte[] encodeECParameterSpec(java.security.Provider, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/security/Provider;Ljava/security/spec/ECParameterSpec;)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // java.security.spec.ECParameterSpec spec
         0: .line 141
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 2 /* parameters */
        start local 2 // java.security.AlgorithmParameters parameters
         1: .line 144
            aload 2 /* parameters */
            aload 1 /* spec */
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         2: .line 145
            goto 5
      StackMap locals: java.security.Provider java.security.spec.ECParameterSpec java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
         3: pop
         4: .line 146
            new java.lang.RuntimeException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Not a known named curve: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* spec */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 150
      StackMap locals:
      StackMap stack:
            aload 2 /* parameters */
            invokevirtual java.security.AlgorithmParameters.getEncoded:()[B
         6: areturn
         7: .line 151
      StackMap locals:
      StackMap stack: java.io.IOException
            astore 3 /* ioe */
        start local 3 // java.io.IOException ioe
         8: .line 153
            new java.lang.RuntimeException
            dup
            aload 3 /* ioe */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 3 // java.io.IOException ioe
        end local 2 // java.security.AlgorithmParameters parameters
        end local 1 // java.security.spec.ECParameterSpec spec
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    9     0           p  Ljava/security/Provider;
            0    9     1        spec  Ljava/security/spec/ECParameterSpec;
            1    9     2  parameters  Ljava/security/AlgorithmParameters;
            8    9     3         ioe  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           1     2       3  Class java.security.spec.InvalidParameterSpecException
           5     6       7  Class java.io.IOException
    MethodParameters:
      Name  Flags
      p     
      spec  

  public static java.security.spec.ECParameterSpec getECParameterSpec(java.security.Provider, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/security/Provider;Ljava/security/spec/ECParameterSpec;)Ljava/security/spec/ECParameterSpec;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // java.security.spec.ECParameterSpec spec
         0: .line 159
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 2 /* parameters */
        start local 2 // java.security.AlgorithmParameters parameters
         1: .line 162
            aload 2 /* parameters */
            aload 1 /* spec */
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         2: .line 163
            aload 2 /* parameters */
            ldc Ljava/security/spec/ECParameterSpec;
            invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.ECParameterSpec
         3: areturn
         4: .line 164
      StackMap locals: java.security.Provider java.security.spec.ECParameterSpec java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
            pop
         5: .line 165
            aconst_null
            areturn
        end local 2 // java.security.AlgorithmParameters parameters
        end local 1 // java.security.spec.ECParameterSpec spec
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0           p  Ljava/security/Provider;
            0    6     1        spec  Ljava/security/spec/ECParameterSpec;
            1    6     2  parameters  Ljava/security/AlgorithmParameters;
      Exception table:
        from    to  target  type
           1     3       4  Class java.security.spec.InvalidParameterSpecException
    MethodParameters:
      Name  Flags
      p     
      spec  

  public static java.security.spec.ECParameterSpec getECParameterSpec(java.security.Provider, byte[]);
    descriptor: (Ljava/security/Provider;[B)Ljava/security/spec/ECParameterSpec;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // byte[] params
         0: .line 172
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 2 /* parameters */
        start local 2 // java.security.AlgorithmParameters parameters
         1: .line 174
            aload 2 /* parameters */
            aload 1 /* params */
            invokevirtual java.security.AlgorithmParameters.init:([B)V
         2: .line 177
            aload 2 /* parameters */
            ldc Ljava/security/spec/ECParameterSpec;
            invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.ECParameterSpec
         3: areturn
         4: .line 178
      StackMap locals: java.security.Provider byte[] java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
            pop
         5: .line 179
            aconst_null
            areturn
        end local 2 // java.security.AlgorithmParameters parameters
        end local 1 // byte[] params
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0           p  Ljava/security/Provider;
            0    6     1      params  [B
            1    6     2  parameters  Ljava/security/AlgorithmParameters;
      Exception table:
        from    to  target  type
           2     3       4  Class java.security.spec.InvalidParameterSpecException
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      p       
      params  

  public static java.security.spec.ECParameterSpec getECParameterSpec(java.security.Provider, java.lang.String);
    descriptor: (Ljava/security/Provider;Ljava/lang/String;)Ljava/security/spec/ECParameterSpec;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // java.lang.String name
         0: .line 184
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 2 /* parameters */
        start local 2 // java.security.AlgorithmParameters parameters
         1: .line 187
            aload 2 /* parameters */
            new java.security.spec.ECGenParameterSpec
            dup
            aload 1 /* name */
            invokespecial java.security.spec.ECGenParameterSpec.<init>:(Ljava/lang/String;)V
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         2: .line 188
            aload 2 /* parameters */
            ldc Ljava/security/spec/ECParameterSpec;
            invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.ECParameterSpec
         3: areturn
         4: .line 189
      StackMap locals: java.security.Provider java.lang.String java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
            pop
         5: .line 190
            aconst_null
            areturn
        end local 2 // java.security.AlgorithmParameters parameters
        end local 1 // java.lang.String name
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0           p  Ljava/security/Provider;
            0    6     1        name  Ljava/lang/String;
            1    6     2  parameters  Ljava/security/AlgorithmParameters;
      Exception table:
        from    to  target  type
           1     3       4  Class java.security.spec.InvalidParameterSpecException
    MethodParameters:
      Name  Flags
      p     
      name  

  public static java.security.spec.ECParameterSpec getECParameterSpec(java.security.Provider, int);
    descriptor: (Ljava/security/Provider;I)Ljava/security/spec/ECParameterSpec;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // int keySize
         0: .line 195
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 2 /* parameters */
        start local 2 // java.security.AlgorithmParameters parameters
         1: .line 198
            aload 2 /* parameters */
            new sun.security.util.ECKeySizeParameterSpec
            dup
            iload 1 /* keySize */
            invokespecial sun.security.util.ECKeySizeParameterSpec.<init>:(I)V
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         2: .line 199
            aload 2 /* parameters */
            ldc Ljava/security/spec/ECParameterSpec;
            invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.ECParameterSpec
         3: areturn
         4: .line 200
      StackMap locals: java.security.Provider int java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
            pop
         5: .line 201
            aconst_null
            areturn
        end local 2 // java.security.AlgorithmParameters parameters
        end local 1 // int keySize
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0           p  Ljava/security/Provider;
            0    6     1     keySize  I
            1    6     2  parameters  Ljava/security/AlgorithmParameters;
      Exception table:
        from    to  target  type
           1     3       4  Class java.security.spec.InvalidParameterSpecException
    MethodParameters:
         Name  Flags
      p        
      keySize  

  public static java.lang.String getCurveName(java.security.Provider, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/security/Provider;Ljava/security/spec/ECParameterSpec;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=4, args_size=2
        start local 0 // java.security.Provider p
        start local 1 // java.security.spec.ECParameterSpec spec
         0: .line 208
            aload 0 /* p */
            invokestatic sun.security.util.ECUtil.getECParameters:(Ljava/security/Provider;)Ljava/security/AlgorithmParameters;
            astore 3 /* parameters */
        start local 3 // java.security.AlgorithmParameters parameters
         1: .line 211
            aload 3 /* parameters */
            aload 1 /* spec */
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         2: .line 212
            aload 3 /* parameters */
            ldc Ljava/security/spec/ECGenParameterSpec;
            invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.ECGenParameterSpec
            astore 2 /* nameSpec */
        start local 2 // java.security.spec.ECGenParameterSpec nameSpec
         3: .line 213
            goto 6
        end local 2 // java.security.spec.ECGenParameterSpec nameSpec
      StackMap locals: java.security.Provider java.security.spec.ECParameterSpec top java.security.AlgorithmParameters
      StackMap stack: java.security.spec.InvalidParameterSpecException
         4: pop
         5: .line 214
            aconst_null
            areturn
        start local 2 // java.security.spec.ECGenParameterSpec nameSpec
         6: .line 217
      StackMap locals: java.security.Provider java.security.spec.ECParameterSpec java.security.spec.ECGenParameterSpec java.security.AlgorithmParameters
      StackMap stack:
            aload 2 /* nameSpec */
            ifnonnull 8
         7: .line 218
            aconst_null
            areturn
         8: .line 221
      StackMap locals:
      StackMap stack:
            aload 2 /* nameSpec */
            invokevirtual java.security.spec.ECGenParameterSpec.getName:()Ljava/lang/String;
            areturn
        end local 3 // java.security.AlgorithmParameters parameters
        end local 2 // java.security.spec.ECGenParameterSpec nameSpec
        end local 1 // java.security.spec.ECParameterSpec spec
        end local 0 // java.security.Provider p
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    9     0           p  Ljava/security/Provider;
            0    9     1        spec  Ljava/security/spec/ECParameterSpec;
            3    4     2    nameSpec  Ljava/security/spec/ECGenParameterSpec;
            6    9     2    nameSpec  Ljava/security/spec/ECGenParameterSpec;
            1    9     3  parameters  Ljava/security/AlgorithmParameters;
      Exception table:
        from    to  target  type
           1     3       4  Class java.security.spec.InvalidParameterSpecException
    MethodParameters:
      Name  Flags
      p     
      spec  

  public static byte[] encodeSignature(byte[]);
    descriptor: ([B)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=7, args_size=1
        start local 0 // byte[] signature
         0: .line 229
            aload 0 /* signature */
            arraylength
            iconst_1
            ishr
            istore 1 /* n */
        start local 1 // int n
         1: .line 230
            iload 1 /* n */
            newarray 8
            astore 2 /* bytes */
        start local 2 // byte[] bytes
         2: .line 231
            aload 0 /* signature */
            iconst_0
            aload 2 /* bytes */
            iconst_0
            iload 1 /* n */
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         3: .line 232
            new java.math.BigInteger
            dup
            iconst_1
            aload 2 /* bytes */
            invokespecial java.math.BigInteger.<init>:(I[B)V
            astore 3 /* r */
        start local 3 // java.math.BigInteger r
         4: .line 233
            aload 0 /* signature */
            iload 1 /* n */
            aload 2 /* bytes */
            iconst_0
            iload 1 /* n */
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         5: .line 234
            new java.math.BigInteger
            dup
            iconst_1
            aload 2 /* bytes */
            invokespecial java.math.BigInteger.<init>:(I[B)V
            astore 4 /* s */
        start local 4 // java.math.BigInteger s
         6: .line 236
            new sun.security.util.DerOutputStream
            dup
            aload 0 /* signature */
            arraylength
            bipush 10
            iadd
            invokespecial sun.security.util.DerOutputStream.<init>:(I)V
            astore 5 /* out */
        start local 5 // sun.security.util.DerOutputStream out
         7: .line 237
            aload 5 /* out */
            aload 3 /* r */
            invokevirtual sun.security.util.DerOutputStream.putInteger:(Ljava/math/BigInteger;)V
         8: .line 238
            aload 5 /* out */
            aload 4 /* s */
            invokevirtual sun.security.util.DerOutputStream.putInteger:(Ljava/math/BigInteger;)V
         9: .line 240
            new sun.security.util.DerValue
            dup
            bipush 48
            aload 5 /* out */
            invokevirtual sun.security.util.DerOutputStream.toByteArray:()[B
            invokespecial sun.security.util.DerValue.<init>:(B[B)V
        10: .line 239
            astore 6 /* result */
        start local 6 // sun.security.util.DerValue result
        11: .line 242
            aload 6 /* result */
            invokevirtual sun.security.util.DerValue.toByteArray:()[B
        12: areturn
        end local 6 // sun.security.util.DerValue result
        end local 5 // sun.security.util.DerOutputStream out
        end local 4 // java.math.BigInteger s
        end local 3 // java.math.BigInteger r
        end local 2 // byte[] bytes
        end local 1 // int n
        13: .line 244
      StackMap locals:
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
        14: .line 245
            new java.security.SignatureException
            dup
            ldc "Could not encode signature"
            aload 1 /* e */
            invokespecial java.security.SignatureException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.Exception e
        end local 0 // byte[] signature
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   15     0  signature  [B
            1   13     1          n  I
            2   13     2      bytes  [B
            4   13     3          r  Ljava/math/BigInteger;
            6   13     4          s  Ljava/math/BigInteger;
            7   13     5        out  Lsun/security/util/DerOutputStream;
           11   13     6     result  Lsun/security/util/DerValue;
           14   15     1          e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0    12      13  Class java.lang.Exception
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
           Name  Flags
      signature  

  public static byte[] decodeSignature(byte[]);
    descriptor: ([B)[B
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=6, locals=9, args_size=1
        start local 0 // byte[] sig
         0: .line 254
            new sun.security.util.DerInputStream
            dup
            aload 0 /* sig */
            iconst_0
            aload 0 /* sig */
            arraylength
            iconst_0
            invokespecial sun.security.util.DerInputStream.<init>:([BIIZ)V
            astore 1 /* in */
        start local 1 // sun.security.util.DerInputStream in
         1: .line 255
            aload 1 /* in */
            iconst_2
            invokevirtual sun.security.util.DerInputStream.getSequence:(I)[Lsun/security/util/DerValue;
            astore 2 /* values */
        start local 2 // sun.security.util.DerValue[] values
         2: .line 259
            aload 2 /* values */
            arraylength
            iconst_2
            if_icmpne 3
            aload 1 /* in */
            invokevirtual sun.security.util.DerInputStream.available:()I
            ifeq 4
         3: .line 260
      StackMap locals: sun.security.util.DerInputStream sun.security.util.DerValue[]
      StackMap stack:
            new java.io.IOException
            dup
            ldc "Invalid encoding for signature"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 263
      StackMap locals:
      StackMap stack:
            aload 2 /* values */
            iconst_0
            aaload
            invokevirtual sun.security.util.DerValue.getPositiveBigInteger:()Ljava/math/BigInteger;
            astore 3 /* r */
        start local 3 // java.math.BigInteger r
         5: .line 264
            aload 2 /* values */
            iconst_1
            aaload
            invokevirtual sun.security.util.DerValue.getPositiveBigInteger:()Ljava/math/BigInteger;
            astore 4 /* s */
        start local 4 // java.math.BigInteger s
         6: .line 267
            aload 3 /* r */
            invokevirtual java.math.BigInteger.toByteArray:()[B
            invokestatic sun.security.util.ECUtil.trimZeroes:([B)[B
            astore 5 /* rBytes */
        start local 5 // byte[] rBytes
         7: .line 268
            aload 4 /* s */
            invokevirtual java.math.BigInteger.toByteArray:()[B
            invokestatic sun.security.util.ECUtil.trimZeroes:([B)[B
            astore 6 /* sBytes */
        start local 6 // byte[] sBytes
         8: .line 269
            aload 5 /* rBytes */
            arraylength
            aload 6 /* sBytes */
            arraylength
            invokestatic java.lang.Math.max:(II)I
            istore 7 /* k */
        start local 7 // int k
         9: .line 271
            iload 7 /* k */
            iconst_1
            ishl
            newarray 8
            astore 8 /* result */
        start local 8 // byte[] result
        10: .line 272
            aload 5 /* rBytes */
            iconst_0
            aload 8 /* result */
            iload 7 /* k */
            aload 5 /* rBytes */
            arraylength
            isub
        11: .line 273
            aload 5 /* rBytes */
            arraylength
        12: .line 272
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        13: .line 274
            aload 6 /* sBytes */
            iconst_0
            aload 8 /* result */
            aload 8 /* result */
            arraylength
            aload 6 /* sBytes */
            arraylength
            isub
        14: .line 275
            aload 6 /* sBytes */
            arraylength
        15: .line 274
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        16: .line 276
            aload 8 /* result */
        17: areturn
        end local 8 // byte[] result
        end local 7 // int k
        end local 6 // byte[] sBytes
        end local 5 // byte[] rBytes
        end local 4 // java.math.BigInteger s
        end local 3 // java.math.BigInteger r
        end local 2 // sun.security.util.DerValue[] values
        end local 1 // sun.security.util.DerInputStream in
        18: .line 278
      StackMap locals: byte[]
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
        19: .line 279
            new java.security.SignatureException
            dup
            ldc "Invalid encoding for signature"
            aload 1 /* e */
            invokespecial java.security.SignatureException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.Exception e
        end local 0 // byte[] sig
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   20     0     sig  [B
            1   18     1      in  Lsun/security/util/DerInputStream;
            2   18     2  values  [Lsun/security/util/DerValue;
            5   18     3       r  Ljava/math/BigInteger;
            6   18     4       s  Ljava/math/BigInteger;
            7   18     5  rBytes  [B
            8   18     6  sBytes  [B
            9   18     7       k  I
           10   18     8  result  [B
           19   20     1       e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0    17      18  Class java.lang.Exception
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
      Name  Flags
      sig   

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // sun.security.util.ECUtil this
         0: .line 283
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // sun.security.util.ECUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/util/ECUtil;
}
SourceFile: "ECUtil.java"