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 class org.bouncycastle.crypto.params.DESedeParameters extends org.bouncycastle.crypto.params.DESParameters
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.crypto.params.DESedeParameters
  super_class: org.bouncycastle.crypto.params.DESParameters
{
  public static final int DES_EDE_KEY_LENGTH;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 24

  public void <init>(byte[]);
    descriptor: ([B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.crypto.params.DESedeParameters this
        start local 1 // byte[] key
         0: .line 14
            aload 0 /* this */
            aload 1 /* key */
            invokespecial org.bouncycastle.crypto.params.DESParameters.<init>:([B)V
         1: .line 16
            aload 1 /* key */
            iconst_0
            aload 1 /* key */
            arraylength
            invokestatic org.bouncycastle.crypto.params.DESedeParameters.isWeakKey:([BII)Z
            ifeq 3
         2: .line 18
            new java.lang.IllegalArgumentException
            dup
            ldc "attempt to create weak DESede key"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 20
      StackMap locals: org.bouncycastle.crypto.params.DESedeParameters byte[]
      StackMap stack:
            return
        end local 1 // byte[] key
        end local 0 // org.bouncycastle.crypto.params.DESedeParameters this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/crypto/params/DESedeParameters;
            0    4     1   key  [B
    MethodParameters:
      Name  Flags
      key   

  public static boolean isWeakKey(byte[], int, int);
    descriptor: ([BII)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=4, args_size=3
        start local 0 // byte[] key
        start local 1 // int offset
        start local 2 // int length
         0: .line 34
            iload 1 /* offset */
            istore 3 /* i */
        start local 3 // int i
         1: goto 5
         2: .line 36
      StackMap locals: int
      StackMap stack:
            aload 0 /* key */
            iload 3 /* i */
            invokestatic org.bouncycastle.crypto.params.DESParameters.isWeakKey:([BI)Z
            ifeq 4
         3: .line 38
            iconst_1
            ireturn
         4: .line 34
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 8
      StackMap locals:
      StackMap stack:
         5: iload 3 /* i */
            iload 2 /* length */
            if_icmplt 2
        end local 3 // int i
         6: .line 42
            iconst_0
            ireturn
        end local 2 // int length
        end local 1 // int offset
        end local 0 // byte[] key
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0     key  [B
            0    7     1  offset  I
            0    7     2  length  I
            1    6     3       i  I
    MethodParameters:
        Name  Flags
      key     
      offset  
      length  

  public static boolean isWeakKey(byte[], int);
    descriptor: ([BI)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // byte[] key
        start local 1 // int offset
         0: .line 55
            aload 0 /* key */
            iload 1 /* offset */
            aload 0 /* key */
            arraylength
            iload 1 /* offset */
            isub
            invokestatic org.bouncycastle.crypto.params.DESedeParameters.isWeakKey:([BII)Z
            ireturn
        end local 1 // int offset
        end local 0 // byte[] key
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0     key  [B
            0    1     1  offset  I
    MethodParameters:
        Name  Flags
      key     
      offset  

  public static boolean isRealEDEKey(byte[], int);
    descriptor: ([BI)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // byte[] key
        start local 1 // int offset
         0: .line 66
            aload 0 /* key */
            arraylength
            bipush 16
            if_icmpne 1
            aload 0 /* key */
            iload 1 /* offset */
            invokestatic org.bouncycastle.crypto.params.DESedeParameters.isReal2Key:([BI)Z
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* key */
            iload 1 /* offset */
            invokestatic org.bouncycastle.crypto.params.DESedeParameters.isReal3Key:([BI)Z
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 1 // int offset
        end local 0 // byte[] key
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0     key  [B
            0    3     1  offset  I
    MethodParameters:
        Name  Flags
      key     
      offset  

  public static boolean isReal2Key(byte[], int);
    descriptor: ([BI)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // byte[] key
        start local 1 // int offset
         0: .line 77
            iconst_0
            istore 2 /* isValid */
        start local 2 // boolean isValid
         1: .line 78
            iload 1 /* offset */
            istore 3 /* i */
        start local 3 // int i
         2: goto 6
         3: .line 80
      StackMap locals: int int
      StackMap stack:
            aload 0 /* key */
            iload 3 /* i */
            baload
            aload 0 /* key */
            iload 3 /* i */
            bipush 8
            iadd
            baload
            if_icmpeq 5
         4: .line 82
            iconst_1
            istore 2 /* isValid */
         5: .line 78
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         6: iload 3 /* i */
            iload 1 /* offset */
            bipush 8
            iadd
            if_icmpne 3
        end local 3 // int i
         7: .line 86
            iload 2 /* isValid */
            ireturn
        end local 2 // boolean isValid
        end local 1 // int offset
        end local 0 // byte[] key
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    8     0      key  [B
            0    8     1   offset  I
            1    8     2  isValid  Z
            2    7     3        i  I
    MethodParameters:
        Name  Flags
      key     
      offset  

  public static boolean isReal3Key(byte[], int);
    descriptor: ([BI)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=6, args_size=2
        start local 0 // byte[] key
        start local 1 // int offset
         0: .line 97
            iconst_0
            istore 2 /* diff12 */
        start local 2 // boolean diff12
         1: iconst_0
            istore 3 /* diff13 */
        start local 3 // boolean diff13
         2: iconst_0
            istore 4 /* diff23 */
        start local 4 // boolean diff23
         3: .line 98
            iload 1 /* offset */
            istore 5 /* i */
        start local 5 // int i
         4: goto 15
         5: .line 100
      StackMap locals: byte[] int int int int int
      StackMap stack:
            iload 2 /* diff12 */
            aload 0 /* key */
            iload 5 /* i */
            baload
            aload 0 /* key */
            iload 5 /* i */
            bipush 8
            iadd
            baload
            if_icmpeq 6
            iconst_1
            goto 7
      StackMap locals:
      StackMap stack: int
         6: iconst_0
      StackMap locals: byte[] int int int int int
      StackMap stack: int int
         7: ior
            istore 2 /* diff12 */
         8: .line 101
            iload 3 /* diff13 */
            aload 0 /* key */
            iload 5 /* i */
            baload
            aload 0 /* key */
            iload 5 /* i */
            bipush 16
            iadd
            baload
            if_icmpeq 9
            iconst_1
            goto 10
      StackMap locals:
      StackMap stack: int
         9: iconst_0
      StackMap locals: byte[] int int int int int
      StackMap stack: int int
        10: ior
            istore 3 /* diff13 */
        11: .line 102
            iload 4 /* diff23 */
            aload 0 /* key */
            iload 5 /* i */
            bipush 8
            iadd
            baload
            aload 0 /* key */
            iload 5 /* i */
            bipush 16
            iadd
            baload
            if_icmpeq 12
            iconst_1
            goto 13
      StackMap locals:
      StackMap stack: int
        12: iconst_0
      StackMap locals: byte[] int int int int int
      StackMap stack: int int
        13: ior
            istore 4 /* diff23 */
        14: .line 98
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
        15: iload 5 /* i */
            iload 1 /* offset */
            bipush 8
            iadd
            if_icmpne 5
        end local 5 // int i
        16: .line 104
            iload 2 /* diff12 */
            ifeq 17
            iload 3 /* diff13 */
            ifeq 17
            iload 4 /* diff23 */
            ifeq 17
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
        17: iconst_0
            ireturn
        end local 4 // boolean diff23
        end local 3 // boolean diff13
        end local 2 // boolean diff12
        end local 1 // int offset
        end local 0 // byte[] key
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   18     0     key  [B
            0   18     1  offset  I
            1   18     2  diff12  Z
            2   18     3  diff13  Z
            3   18     4  diff23  Z
            4   16     5       i  I
    MethodParameters:
        Name  Flags
      key     
      offset  
}
SourceFile: "DESedeParameters.java"