http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
class org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine extends org.apache.fop.pdf.PDFEncryptionJCE$RevBefore5Engine
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine
  super_class: org.apache.fop.pdf.PDFEncryptionJCE$RevBefore5Engine
{
  final org.apache.fop.pdf.PDFEncryptionJCE this$0;
    descriptor: Lorg/apache/fop/pdf/PDFEncryptionJCE;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.apache.fop.pdf.PDFEncryptionJCE, org.apache.fop.pdf.PDFEncryptionJCE$EncryptionSettings);
    descriptor: (Lorg/apache/fop/pdf/PDFEncryptionJCE;Lorg/apache/fop/pdf/PDFEncryptionJCE$EncryptionSettings;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
        start local 2 // org.apache.fop.pdf.PDFEncryptionJCE$EncryptionSettings encryptionSettings
         0: .line 395
            aload 0 /* this */
            aload 1
            putfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
         1: .line 396
            aload 0 /* this */
            aload 1
            aload 2 /* encryptionSettings */
            invokespecial org.apache.fop.pdf.PDFEncryptionJCE$RevBefore5Engine.<init>:(Lorg/apache/fop/pdf/PDFEncryptionJCE;Lorg/apache/fop/pdf/PDFEncryptionJCE$EncryptionSettings;)V
         2: .line 397
            return
        end local 2 // org.apache.fop.pdf.PDFEncryptionJCE$EncryptionSettings encryptionSettings
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    3     0                this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            0    3     2  encryptionSettings  Lorg/apache/fop/pdf/PDFEncryptionJCE$EncryptionSettings;
    MethodParameters:
                    Name  Flags
      this$0              final
      encryptionSettings  

  protected byte[] computeOValueStep3(byte[]);
    descriptor: ([B)[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
        start local 1 // byte[] hash
         0: .line 401
            iconst_0
            istore 2 /* i */
        start local 2 // int i
         1: goto 4
         2: .line 402
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            aload 1 /* hash */
            invokevirtual java.security.MessageDigest.digest:([B)[B
            astore 1 /* hash */
         3: .line 401
            iinc 2 /* i */ 1
      StackMap locals:
      StackMap stack:
         4: iload 2 /* i */
            bipush 50
            if_icmplt 2
        end local 2 // int i
         5: .line 404
            aload 1 /* hash */
            areturn
        end local 1 // byte[] hash
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            0    6     1  hash  [B
            1    5     2     i  I
    MethodParameters:
      Name  Flags
      hash  

  protected byte[] computeOValueStep7(byte[], byte[]);
    descriptor: ([B[B)[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
        start local 1 // byte[] key
        start local 2 // byte[] encryptionResult
         0: .line 409
            aload 0 /* this */
            aload 1 /* key */
            aload 2 /* encryptionResult */
            invokevirtual org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.xorKeyAndEncrypt19Times:([B[B)[B
            areturn
        end local 2 // byte[] encryptionResult
        end local 1 // byte[] key
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            0    1     1               key  [B
            0    1     2  encryptionResult  [B
    MethodParameters:
                  Name  Flags
      key               
      encryptionResult  

  protected byte[] createEncryptionKeyStep6(byte[]);
    descriptor: ([B)[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
        start local 1 // byte[] hash
         0: .line 414
            iconst_0
            istore 2 /* i */
        start local 2 // int i
         1: goto 5
         2: .line 415
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            aload 1 /* hash */
            iconst_0
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.encryptionLengthInBytes:I
            invokevirtual java.security.MessageDigest.update:([BII)V
         3: .line 416
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            astore 1 /* hash */
         4: .line 414
            iinc 2 /* i */ 1
      StackMap locals:
      StackMap stack:
         5: iload 2 /* i */
            bipush 50
            if_icmplt 2
        end local 2 // int i
         6: .line 418
            aload 1 /* hash */
            areturn
        end local 1 // byte[] hash
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            0    7     1  hash  [B
            1    6     2     i  I
    MethodParameters:
      Name  Flags
      hash  

  protected void computeUValue();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
         0: .line 425
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.reset:()V
         1: .line 426
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.padding:[B
            invokevirtual java.security.MessageDigest.update:([B)V
         2: .line 428
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            invokevirtual org.apache.fop.pdf.PDFEncryptionJCE.getDocumentSafely:()Lorg/apache/fop/pdf/PDFDocument;
            invokevirtual org.apache.fop.pdf.PDFDocument.getFileIDGenerator:()Lorg/apache/fop/pdf/FileIDGenerator;
            invokevirtual org.apache.fop.pdf.FileIDGenerator.getOriginalFileID:()[B
            invokevirtual java.security.MessageDigest.update:([B)V
         3: .line 430
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.encryptionKey:[B
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.digest:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            invokestatic org.apache.fop.pdf.PDFEncryptionJCE.encryptWithKey:([B[B)[B
            astore 1 /* encryptionResult */
        start local 1 // byte[] encryptionResult
         4: .line 432
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.this$0:Lorg/apache/fop/pdf/PDFEncryptionJCE;
            getfield org.apache.fop.pdf.PDFEncryptionJCE.encryptionKey:[B
            aload 1 /* encryptionResult */
            invokevirtual org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.xorKeyAndEncrypt19Times:([B[B)[B
            astore 1 /* encryptionResult */
         5: .line 434
            aload 0 /* this */
            bipush 32
            newarray 8
            putfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.uValue:[B
         6: .line 435
            aload 1 /* encryptionResult */
            iconst_0
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.uValue:[B
            iconst_0
            bipush 16
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         7: .line 437
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine.uValue:[B
            bipush 16
            bipush 32
            iconst_0
            invokestatic java.util.Arrays.fill:([BIIB)V
         8: .line 438
            return
        end local 1 // byte[] encryptionResult
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    9     0              this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            4    9     1  encryptionResult  [B

  private byte[] xorKeyAndEncrypt19Times(byte[], byte[]);
    descriptor: ([B[B)[B
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=7, args_size=3
        start local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
        start local 1 // byte[] key
        start local 2 // byte[] input
         0: .line 441
            aload 2 /* input */
            astore 3 /* result */
        start local 3 // byte[] result
         1: .line 442
            aload 1 /* key */
            arraylength
            newarray 8
            astore 4 /* encryptionKey */
        start local 4 // byte[] encryptionKey
         2: .line 443
            iconst_1
            istore 5 /* i */
        start local 5 // int i
         3: goto 11
         4: .line 444
      StackMap locals: byte[] byte[] int
      StackMap stack:
            iconst_0
            istore 6 /* j */
        start local 6 // int j
         5: goto 8
         6: .line 445
      StackMap locals: int
      StackMap stack:
            aload 4 /* encryptionKey */
            iload 6 /* j */
            aload 1 /* key */
            iload 6 /* j */
            baload
            iload 5 /* i */
            ixor
            i2b
            bastore
         7: .line 444
            iinc 6 /* j */ 1
      StackMap locals:
      StackMap stack:
         8: iload 6 /* j */
            aload 1 /* key */
            arraylength
            if_icmplt 6
        end local 6 // int j
         9: .line 447
            aload 4 /* encryptionKey */
            aload 3 /* result */
            invokestatic org.apache.fop.pdf.PDFEncryptionJCE.encryptWithKey:([B[B)[B
            astore 3 /* result */
        10: .line 443
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
        11: iload 5 /* i */
            bipush 19
            if_icmple 4
        end local 5 // int i
        12: .line 449
            aload 3 /* result */
            areturn
        end local 4 // byte[] encryptionKey
        end local 3 // byte[] result
        end local 2 // byte[] input
        end local 1 // byte[] key
        end local 0 // org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   13     0           this  Lorg/apache/fop/pdf/PDFEncryptionJCE$Rev3Engine;
            0   13     1            key  [B
            0   13     2          input  [B
            1   13     3         result  [B
            2   13     4  encryptionKey  [B
            3   12     5              i  I
            5    9     6              j  I
    MethodParameters:
       Name  Flags
      key    
      input  
}
SourceFile: "PDFEncryptionJCE.java"
NestHost: org.apache.fop.pdf.PDFEncryptionJCE
InnerClasses:
  private final EncryptionSettings = org.apache.fop.pdf.PDFEncryptionJCE$EncryptionSettings of org.apache.fop.pdf.PDFEncryptionJCE
  private Rev3Engine = org.apache.fop.pdf.PDFEncryptionJCE$Rev3Engine of org.apache.fop.pdf.PDFEncryptionJCE
  private abstract RevBefore5Engine = org.apache.fop.pdf.PDFEncryptionJCE$RevBefore5Engine of org.apache.fop.pdf.PDFEncryptionJCE