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. 
public class org.bouncycastle.crypto.KeyGenerationParameters
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.crypto.KeyGenerationParameters
  super_class: java.lang.Object
{
  private java.security.SecureRandom random;
    descriptor: Ljava/security/SecureRandom;
    flags: (0x0002) ACC_PRIVATE

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

  public void <init>(java.security.SecureRandom, int);
    descriptor: (Ljava/security/SecureRandom;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
        start local 1 // java.security.SecureRandom random
        start local 2 // int strength
         0: .line 20
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 24
            aload 0 /* this */
            aload 1 /* random */
            putfield org.bouncycastle.crypto.KeyGenerationParameters.random:Ljava/security/SecureRandom;
         2: .line 25
            aload 0 /* this */
            iload 2 /* strength */
            putfield org.bouncycastle.crypto.KeyGenerationParameters.strength:I
         3: .line 26
            return
        end local 2 // int strength
        end local 1 // java.security.SecureRandom random
        end local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/bouncycastle/crypto/KeyGenerationParameters;
            0    4     1    random  Ljava/security/SecureRandom;
            0    4     2  strength  I
    MethodParameters:
          Name  Flags
      random    
      strength  

  public java.security.SecureRandom getRandom();
    descriptor: ()Ljava/security/SecureRandom;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
         0: .line 36
            aload 0 /* this */
            getfield org.bouncycastle.crypto.KeyGenerationParameters.random:Ljava/security/SecureRandom;
            areturn
        end local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/crypto/KeyGenerationParameters;

  public int getStrength();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
         0: .line 46
            aload 0 /* this */
            getfield org.bouncycastle.crypto.KeyGenerationParameters.strength:I
            ireturn
        end local 0 // org.bouncycastle.crypto.KeyGenerationParameters this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/crypto/KeyGenerationParameters;
}
SourceFile: "KeyGenerationParameters.java"