com.jcraft/jsch/0.1.55 : com/jcraft/jsch/jcraft/HMAC.class

HMAC
http://www.jcraft.com/jsch/: JSch is a pure Java implementation of SSH2 (JCraft,Inc.)
Revised BSD
Atsuhiko Yamanaka (JCraft,Inc.)
class com.jcraft.jsch.jcraft.HMAC
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.jcraft.jsch.jcraft.HMAC
  super_class: java.lang.Object
{
  private static final int B;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 64

  private byte[] k_ipad;
    descriptor: [B
    flags: (0x0002) ACC_PRIVATE

  private byte[] k_opad;
    descriptor: [B
    flags: (0x0002) ACC_PRIVATE

  private java.security.MessageDigest md;
    descriptor: Ljava/security/MessageDigest;
    flags: (0x0002) ACC_PRIVATE

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

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

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
         0: .line 34
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 47
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
         2: .line 48
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.jcraft.HMAC.k_opad:[B
         3: .line 50
            aload 0 /* this */
            aconst_null
            putfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
         4: .line 52
            aload 0 /* this */
            iconst_0
            putfield com.jcraft.jsch.jcraft.HMAC.bsize:I
         5: .line 88
            aload 0 /* this */
            iconst_4
            newarray 8
            putfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
         6: .line 34
            return
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lcom/jcraft/jsch/jcraft/HMAC;

  protected void setH(java.security.MessageDigest);
    descriptor: (Ljava/security/MessageDigest;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
        start local 1 // java.security.MessageDigest md
         0: .line 55
            aload 0 /* this */
            aload 1 /* md */
            putfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
         1: .line 56
            aload 0 /* this */
            aload 1 /* md */
            invokevirtual java.security.MessageDigest.getDigestLength:()I
            putfield com.jcraft.jsch.jcraft.HMAC.bsize:I
         2: .line 57
            return
        end local 1 // java.security.MessageDigest md
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/jcraft/jsch/jcraft/HMAC;
            0    3     1    md  Ljava/security/MessageDigest;
    MethodParameters:
      Name  Flags
      md    

  public int getBlockSize();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
         0: .line 59
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            ireturn
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/jcraft/HMAC;

  public void init(byte[]);
    descriptor: ([B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
        start local 1 // byte[] key
         0: .line 61
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.reset:()V
         1: .line 62
            aload 1 /* key */
            arraylength
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            if_icmple 5
         2: .line 63
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            newarray 8
            astore 2 /* tmp */
        start local 2 // byte[] tmp
         3: .line 64
            aload 1 /* key */
            iconst_0
            aload 2 /* tmp */
            iconst_0
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         4: .line 65
            aload 2 /* tmp */
            astore 1 /* key */
        end local 2 // byte[] tmp
         5: .line 69
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            arraylength
            bipush 64
            if_icmple 8
         6: .line 70
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 1 /* key */
            iconst_0
            aload 1 /* key */
            arraylength
            invokevirtual java.security.MessageDigest.update:([BII)V
         7: .line 71
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            astore 1 /* key */
         8: .line 74
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            bipush 64
            newarray 8
            putfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
         9: .line 75
            aload 1 /* key */
            iconst_0
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
            iconst_0
            aload 1 /* key */
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        10: .line 76
            aload 0 /* this */
            bipush 64
            newarray 8
            putfield com.jcraft.jsch.jcraft.HMAC.k_opad:[B
        11: .line 77
            aload 1 /* key */
            iconst_0
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_opad:[B
            iconst_0
            aload 1 /* key */
            arraylength
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
        12: .line 80
            iconst_0
            istore 2 /* i */
        start local 2 // int i
        13: goto 17
        14: .line 81
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
            iload 2 /* i */
            dup2
            baload
            bipush 54
            ixor
            i2b
            bastore
        15: .line 82
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_opad:[B
            iload 2 /* i */
            dup2
            baload
            bipush 92
            ixor
            i2b
            bastore
        16: .line 80
            iinc 2 /* i */ 1
      StackMap locals:
      StackMap stack:
        17: iload 2 /* i */
            bipush 64
            if_icmplt 14
        end local 2 // int i
        18: .line 85
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
            iconst_0
            bipush 64
            invokevirtual java.security.MessageDigest.update:([BII)V
        19: .line 86
            return
        end local 1 // byte[] key
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   20     0  this  Lcom/jcraft/jsch/jcraft/HMAC;
            0   20     1   key  [B
            3    5     2   tmp  [B
           13   18     2     i  I
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
      Name  Flags
      key   

  public void update(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
        start local 1 // int i
         0: .line 90
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
            iconst_0
            iload 1 /* i */
            bipush 24
            iushr
            i2b
            bastore
         1: .line 91
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
            iconst_1
            iload 1 /* i */
            bipush 16
            iushr
            i2b
            bastore
         2: .line 92
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
            iconst_2
            iload 1 /* i */
            bipush 8
            iushr
            i2b
            bastore
         3: .line 93
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
            iconst_3
            iload 1 /* i */
            i2b
            bastore
         4: .line 94
            aload 0 /* this */
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.tmp:[B
            iconst_0
            iconst_4
            invokevirtual com.jcraft.jsch.jcraft.HMAC.update:([BII)V
         5: .line 95
            return
        end local 1 // int i
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lcom/jcraft/jsch/jcraft/HMAC;
            0    6     1     i  I
    MethodParameters:
      Name  Flags
      i     

  public void update(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
        start local 1 // byte[] foo
        start local 2 // int s
        start local 3 // int l
         0: .line 98
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 1 /* foo */
            iload 2 /* s */
            iload 3 /* l */
            invokevirtual java.security.MessageDigest.update:([BII)V
         1: .line 99
            return
        end local 3 // int l
        end local 2 // int s
        end local 1 // byte[] foo
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/jcraft/jsch/jcraft/HMAC;
            0    2     1   foo  [B
            0    2     2     s  I
            0    2     3     l  I
    MethodParameters:
      Name  Flags
      foo   
      s     
      l     

  public void doFinal(byte[], int);
    descriptor: ([BI)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // com.jcraft.jsch.jcraft.HMAC this
        start local 1 // byte[] buf
        start local 2 // int offset
         0: .line 102
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            astore 3 /* result */
        start local 3 // byte[] result
         1: .line 103
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_opad:[B
            iconst_0
            bipush 64
            invokevirtual java.security.MessageDigest.update:([BII)V
         2: .line 104
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 3 /* result */
            iconst_0
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            invokevirtual java.security.MessageDigest.update:([BII)V
         3: .line 105
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 1 /* buf */
            iload 2 /* offset */
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.bsize:I
            invokevirtual java.security.MessageDigest.digest:([BII)I
            pop
         4: goto 6
      StackMap locals: com.jcraft.jsch.jcraft.HMAC byte[] int byte[]
      StackMap stack: java.lang.Exception
         5: pop
         6: .line 106
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.md:Ljava/security/MessageDigest;
            aload 0 /* this */
            getfield com.jcraft.jsch.jcraft.HMAC.k_ipad:[B
            iconst_0
            bipush 64
            invokevirtual java.security.MessageDigest.update:([BII)V
         7: .line 107
            return
        end local 3 // byte[] result
        end local 2 // int offset
        end local 1 // byte[] buf
        end local 0 // com.jcraft.jsch.jcraft.HMAC this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0    this  Lcom/jcraft/jsch/jcraft/HMAC;
            0    8     1     buf  [B
            0    8     2  offset  I
            1    8     3  result  [B
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.Exception
    MethodParameters:
        Name  Flags
      buf     
      offset  
}
SourceFile: "HMAC.java"
/

com.jcraft/ jsch/ 0.1.55/ com/jcraft/jsch/jcraft/HMAC.class
