public final class sun.security.rsa.MGF1
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: sun.security.rsa.MGF1
  super_class: java.lang.Object
{
  private final java.security.MessageDigest md;
    descriptor: Ljava/security/MessageDigest;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // sun.security.rsa.MGF1 this
        start local 1 // java.lang.String mdAlgo
         0: .line 46
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 47
            aload 0 /* this */
            aload 1 /* mdAlgo */
            invokestatic java.security.MessageDigest.getInstance:(Ljava/lang/String;)Ljava/security/MessageDigest;
            putfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
         2: .line 48
            return
        end local 1 // java.lang.String mdAlgo
        end local 0 // sun.security.rsa.MGF1 this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lsun/security/rsa/MGF1;
            0    3     1  mdAlgo  Ljava/lang/String;
    Exceptions:
      throws java.security.NoSuchAlgorithmException
    MethodParameters:
        Name  Flags
      mdAlgo  

  void generateAndXor(byte[], int, int, int, byte[], int);
    descriptor: ([BIII[BI)V
    flags: (0x0000) 
    Code:
      stack=5, locals=10, args_size=7
        start local 0 // sun.security.rsa.MGF1 this
        start local 1 // byte[] seed
        start local 2 // int seedOfs
        start local 3 // int seedLen
        start local 4 // int maskLen
        start local 5 // byte[] out
        start local 6 // int outOfs
         0: .line 64
            iconst_4
            newarray 8
            astore 7 /* C */
        start local 7 // byte[] C
         1: .line 65
            aload 0 /* this */
            getfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.getDigestLength:()I
            newarray 8
            astore 8 /* digest */
        start local 8 // byte[] digest
         2: .line 66
            goto 19
         3: .line 67
      StackMap locals: byte[] byte[]
      StackMap stack:
            aload 0 /* this */
            getfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
            aload 1 /* seed */
            iload 2 /* seedOfs */
            iload 3 /* seedLen */
            invokevirtual java.security.MessageDigest.update:([BII)V
         4: .line 68
            aload 0 /* this */
            getfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
            aload 7 /* C */
            invokevirtual java.security.MessageDigest.update:([B)V
         5: .line 70
            aload 0 /* this */
            getfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
            aload 8 /* digest */
            iconst_0
            aload 8 /* digest */
            arraylength
            invokevirtual java.security.MessageDigest.digest:([BII)I
            pop
         6: .line 71
            goto 9
      StackMap locals:
      StackMap stack: java.security.DigestException
         7: astore 9 /* e */
        start local 9 // java.security.DigestException e
         8: .line 73
            new java.lang.RuntimeException
            dup
            aload 9 /* e */
            invokevirtual java.security.DigestException.toString:()Ljava/lang/String;
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
        end local 9 // java.security.DigestException e
         9: .line 75
      StackMap locals:
      StackMap stack:
            iconst_0
            istore 9 /* i */
        start local 9 // int i
        10: goto 13
        11: .line 76
      StackMap locals: int
      StackMap stack:
            aload 5 /* out */
            iload 6 /* outOfs */
            iinc 6 /* outOfs */ 1
            dup2
            baload
            aload 8 /* digest */
            iload 9 /* i */
            iinc 9 /* i */ 1
            baload
            ixor
            i2b
            bastore
        12: .line 75
            iinc 4 /* maskLen */ -1
      StackMap locals:
      StackMap stack:
        13: iload 9 /* i */
            aload 8 /* digest */
            arraylength
            if_icmpge 14
            iload 4 /* maskLen */
            ifgt 11
        end local 9 // int i
        14: .line 78
      StackMap locals:
      StackMap stack:
            iload 4 /* maskLen */
            ifle 19
        15: .line 80
            aload 7 /* C */
            arraylength
            iconst_1
            isub
            istore 9 /* i */
        start local 9 // int i
        16: goto 18
      StackMap locals: int
      StackMap stack:
        17: iinc 9 /* i */ -1
      StackMap locals:
      StackMap stack:
        18: aload 7 /* C */
            iload 9 /* i */
            dup2
            baload
            iconst_1
            iadd
            i2b
            dup_x2
            bastore
            ifne 19
            iload 9 /* i */
            ifgt 17
        end local 9 // int i
        19: .line 66
      StackMap locals:
      StackMap stack:
            iload 4 /* maskLen */
            ifgt 3
        20: .line 85
            return
        end local 8 // byte[] digest
        end local 7 // byte[] C
        end local 6 // int outOfs
        end local 5 // byte[] out
        end local 4 // int maskLen
        end local 3 // int seedLen
        end local 2 // int seedOfs
        end local 1 // byte[] seed
        end local 0 // sun.security.rsa.MGF1 this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   21     0     this  Lsun/security/rsa/MGF1;
            0   21     1     seed  [B
            0   21     2  seedOfs  I
            0   21     3  seedLen  I
            0   21     4  maskLen  I
            0   21     5      out  [B
            0   21     6   outOfs  I
            1   21     7        C  [B
            2   21     8   digest  [B
            8    9     9        e  Ljava/security/DigestException;
           10   14     9        i  I
           16   19     9        i  I
      Exception table:
        from    to  target  type
           5     6       7  Class java.security.DigestException
    Exceptions:
      throws java.lang.RuntimeException
    MethodParameters:
         Name  Flags
      seed     
      seedOfs  
      seedLen  
      maskLen  
      out      
      outOfs   

  java.lang.String getName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0000) 
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // sun.security.rsa.MGF1 this
         0: .line 92
            new java.lang.StringBuilder
            dup
            ldc "MGF1"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield sun.security.rsa.MGF1.md:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.getAlgorithm:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // sun.security.rsa.MGF1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/rsa/MGF1;
}
SourceFile: "MGF1.java"