http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
public abstract class org.bouncycastle.crypto.digests.GeneralDigest implements org.bouncycastle.crypto.ExtendedDigest, org.bouncycastle.util.Memoable
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.crypto.digests.GeneralDigest
  super_class: java.lang.Object
{
  private static final int BYTE_LENGTH;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 64

  private final byte[] xBuf;
    descriptor: [B
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private int xBufOff;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private long byteCount;
    descriptor: J
    flags: (0x0002) ACC_PRIVATE

  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
         0: .line 24
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 16
            aload 0 /* this */
            iconst_4
            newarray 8
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
         2: .line 26
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         3: .line 27
            return
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;

  protected void <init>(org.bouncycastle.crypto.digests.GeneralDigest);
    descriptor: (Lorg/bouncycastle/crypto/digests/GeneralDigest;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // org.bouncycastle.crypto.digests.GeneralDigest t
         0: .line 34
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 16
            aload 0 /* this */
            iconst_4
            newarray 8
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
         2: .line 36
            aload 0 /* this */
            aload 1 /* t */
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.copyIn:(Lorg/bouncycastle/crypto/digests/GeneralDigest;)V
         3: .line 37
            return
        end local 1 // org.bouncycastle.crypto.digests.GeneralDigest t
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0    4     1     t  Lorg/bouncycastle/crypto/digests/GeneralDigest;
    MethodParameters:
      Name  Flags
      t     

  protected void <init>(byte[]);
    descriptor: ([B)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // byte[] encodedState
         0: .line 39
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 16
            aload 0 /* this */
            iconst_4
            newarray 8
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
         2: .line 41
            aload 1 /* encodedState */
            iconst_0
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         3: .line 42
            aload 0 /* this */
            aload 1 /* encodedState */
            iconst_4
            invokestatic org.bouncycastle.util.Pack.bigEndianToInt:([BI)I
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         4: .line 43
            aload 0 /* this */
            aload 1 /* encodedState */
            bipush 8
            invokestatic org.bouncycastle.util.Pack.bigEndianToLong:([BI)J
            putfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
         5: .line 44
            return
        end local 1 // byte[] encodedState
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    6     0          this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0    6     1  encodedState  [B
    MethodParameters:
              Name  Flags
      encodedState  

  protected void copyIn(org.bouncycastle.crypto.digests.GeneralDigest);
    descriptor: (Lorg/bouncycastle/crypto/digests/GeneralDigest;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // org.bouncycastle.crypto.digests.GeneralDigest t
         0: .line 48
            aload 1 /* t */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            aload 1 /* t */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         1: .line 50
            aload 0 /* this */
            aload 1 /* t */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         2: .line 51
            aload 0 /* this */
            aload 1 /* t */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
            putfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
         3: .line 52
            return
        end local 1 // org.bouncycastle.crypto.digests.GeneralDigest t
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0    4     1     t  Lorg/bouncycastle/crypto/digests/GeneralDigest;
    MethodParameters:
      Name  Flags
      t     

  public void update(byte);
    descriptor: (B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // byte in
         0: .line 57
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            aload 0 /* this */
            dup
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            dup_x1
            iconst_1
            iadd
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            iload 1 /* in */
            bastore
         1: .line 59
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            arraylength
            if_icmpne 4
         2: .line 61
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.processWord:([BI)V
         3: .line 62
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         4: .line 65
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
            lconst_1
            ladd
            putfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
         5: .line 66
            return
        end local 1 // byte in
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0    6     1    in  B
    MethodParameters:
      Name  Flags
      in    

  public void update(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=6, args_size=4
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // byte[] in
        start local 2 // int inOff
        start local 3 // int len
         0: .line 73
            iconst_0
            iload 3 /* len */
            invokestatic java.lang.Math.max:(II)I
            istore 3 /* len */
         1: .line 78
            iconst_0
            istore 4 /* i */
        start local 4 // int i
         2: .line 79
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            ifeq 10
         3: .line 81
            goto 9
         4: .line 83
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            aload 0 /* this */
            dup
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            dup_x1
            iconst_1
            iadd
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            aload 1 /* in */
            iload 2 /* inOff */
            iload 4 /* i */
            iinc 4 /* i */ 1
            iadd
            baload
            bastore
         5: .line 84
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            iconst_4
            if_icmpne 9
         6: .line 86
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.processWord:([BI)V
         7: .line 87
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         8: .line 88
            goto 10
         9: .line 81
      StackMap locals:
      StackMap stack:
            iload 4 /* i */
            iload 3 /* len */
            if_icmplt 4
        10: .line 96
      StackMap locals:
      StackMap stack:
            iload 3 /* len */
            iload 4 /* i */
            isub
            bipush -4
            iand
            iload 4 /* i */
            iadd
            istore 5 /* limit */
        start local 5 // int limit
        11: .line 97
            goto 14
        12: .line 99
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* in */
            iload 2 /* inOff */
            iload 4 /* i */
            iadd
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.processWord:([BI)V
        13: .line 97
            iinc 4 /* i */ 4
      StackMap locals:
      StackMap stack:
        14: iload 4 /* i */
            iload 5 /* limit */
            if_icmplt 12
        15: .line 105
            goto 17
        16: .line 107
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            aload 0 /* this */
            dup
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            dup_x1
            iconst_1
            iadd
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            aload 1 /* in */
            iload 2 /* inOff */
            iload 4 /* i */
            iinc 4 /* i */ 1
            iadd
            baload
            bastore
        17: .line 105
      StackMap locals:
      StackMap stack:
            iload 4 /* i */
            iload 3 /* len */
            if_icmplt 16
        18: .line 110
            aload 0 /* this */
            dup
            getfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
            iload 3 /* len */
            i2l
            ladd
            putfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
        19: .line 111
            return
        end local 5 // int limit
        end local 4 // int i
        end local 3 // int len
        end local 2 // int inOff
        end local 1 // byte[] in
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   20     0   this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0   20     1     in  [B
            0   20     2  inOff  I
            0   20     3    len  I
            2   20     4      i  I
           11   20     5  limit  I
    MethodParameters:
       Name  Flags
      in     
      inOff  
      len    

  public void finish();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
         0: .line 115
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
            iconst_3
            lshl
            lstore 1 /* bitLength */
        start local 1 // long bitLength
         1: .line 120
            aload 0 /* this */
            bipush -128
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.update:(B)V
         2: .line 122
            goto 4
         3: .line 124
      StackMap locals: long
      StackMap stack:
            aload 0 /* this */
            iconst_0
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.update:(B)V
         4: .line 122
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            ifne 3
         5: .line 127
            aload 0 /* this */
            lload 1 /* bitLength */
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.processLength:(J)V
         6: .line 129
            aload 0 /* this */
            invokevirtual org.bouncycastle.crypto.digests.GeneralDigest.processBlock:()V
         7: .line 130
            return
        end local 1 // long bitLength
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    8     0       this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            1    8     1  bitLength  J

  public void reset();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
         0: .line 134
            aload 0 /* this */
            lconst_0
            putfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
         1: .line 136
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
         2: .line 137
            iconst_0
            istore 1 /* i */
        start local 1 // int i
         3: goto 6
         4: .line 139
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iload 1 /* i */
            iconst_0
            bastore
         5: .line 137
            iinc 1 /* i */ 1
      StackMap locals:
      StackMap stack:
         6: iload 1 /* i */
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            arraylength
            if_icmplt 4
        end local 1 // int i
         7: .line 141
            return
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            3    7     1     i  I

  protected void populateState(byte[]);
    descriptor: ([B)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
        start local 1 // byte[] state
         0: .line 145
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBuf:[B
            iconst_0
            aload 1 /* state */
            iconst_0
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         1: .line 146
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.xBufOff:I
            aload 1 /* state */
            iconst_4
            invokestatic org.bouncycastle.util.Pack.intToBigEndian:(I[BI)V
         2: .line 147
            aload 0 /* this */
            getfield org.bouncycastle.crypto.digests.GeneralDigest.byteCount:J
            aload 1 /* state */
            bipush 8
            invokestatic org.bouncycastle.util.Pack.longToBigEndian:(J[BI)V
         3: .line 148
            return
        end local 1 // byte[] state
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lorg/bouncycastle/crypto/digests/GeneralDigest;
            0    4     1  state  [B
    MethodParameters:
       Name  Flags
      state  

  public int getByteLength();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
         0: .line 152
            bipush 64
            ireturn
        end local 0 // org.bouncycastle.crypto.digests.GeneralDigest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/crypto/digests/GeneralDigest;

  protected abstract void processWord(byte[], int);
    descriptor: ([BI)V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      in     
      inOff  

  protected abstract void processLength(long);
    descriptor: (J)V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    MethodParameters:
           Name  Flags
      bitLength  

  protected abstract void processBlock();
    descriptor: ()V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
}
SourceFile: "GeneralDigest.java"