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.util.CipherKeyGeneratorFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.crypto.util.CipherKeyGeneratorFactory
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.crypto.util.CipherKeyGeneratorFactory this
         0: .line 21
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 23
            return
        end local 0 // org.bouncycastle.crypto.util.CipherKeyGeneratorFactory this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/crypto/util/CipherKeyGeneratorFactory;

  public static org.bouncycastle.crypto.CipherKeyGenerator createKeyGenerator(org.bouncycastle.asn1.ASN1ObjectIdentifier, java.security.SecureRandom);
    descriptor: (Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Ljava/security/SecureRandom;)Lorg/bouncycastle/crypto/CipherKeyGenerator;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1ObjectIdentifier algorithm
        start local 1 // java.security.SecureRandom random
         0: .line 36
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes128_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 2
         1: .line 38
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
         2: .line 40
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes192_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 4
         3: .line 42
            aload 1 /* random */
            sipush 192
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
         4: .line 44
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes256_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 6
         5: .line 46
            aload 1 /* random */
            sipush 256
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
         6: .line 48
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.des_EDE3_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 10
         7: .line 50
            new org.bouncycastle.crypto.generators.DESedeKeyGenerator
            dup
            invokespecial org.bouncycastle.crypto.generators.DESedeKeyGenerator.<init>:()V
            astore 2 /* keyGen */
        start local 2 // org.bouncycastle.crypto.generators.DESedeKeyGenerator keyGen
         8: .line 52
            aload 2 /* keyGen */
            new org.bouncycastle.crypto.KeyGenerationParameters
            dup
            aload 1 /* random */
            sipush 192
            invokespecial org.bouncycastle.crypto.KeyGenerationParameters.<init>:(Ljava/security/SecureRandom;I)V
            invokevirtual org.bouncycastle.crypto.generators.DESedeKeyGenerator.init:(Lorg/bouncycastle/crypto/KeyGenerationParameters;)V
         9: .line 54
            aload 2 /* keyGen */
            areturn
        end local 2 // org.bouncycastle.crypto.generators.DESedeKeyGenerator keyGen
        10: .line 56
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia128_cbc:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 12
        11: .line 58
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        12: .line 60
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia192_cbc:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 14
        13: .line 62
            aload 1 /* random */
            sipush 192
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        14: .line 64
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia256_cbc:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 16
        15: .line 66
            aload 1 /* random */
            sipush 256
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        16: .line 68
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.kisa.KISAObjectIdentifiers.id_seedCBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 18
        17: .line 70
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        18: .line 72
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.crypto.util.AlgorithmIdentifierFactory.CAST5_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 20
        19: .line 74
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        20: .line 76
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.oiw.OIWObjectIdentifiers.desCBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 24
        21: .line 78
            new org.bouncycastle.crypto.generators.DESKeyGenerator
            dup
            invokespecial org.bouncycastle.crypto.generators.DESKeyGenerator.<init>:()V
            astore 2 /* keyGen */
        start local 2 // org.bouncycastle.crypto.generators.DESKeyGenerator keyGen
        22: .line 80
            aload 2 /* keyGen */
            new org.bouncycastle.crypto.KeyGenerationParameters
            dup
            aload 1 /* random */
            bipush 64
            invokespecial org.bouncycastle.crypto.KeyGenerationParameters.<init>:(Ljava/security/SecureRandom;I)V
            invokevirtual org.bouncycastle.crypto.generators.DESKeyGenerator.init:(Lorg/bouncycastle/crypto/KeyGenerationParameters;)V
        23: .line 82
            aload 2 /* keyGen */
            areturn
        end local 2 // org.bouncycastle.crypto.generators.DESKeyGenerator keyGen
        24: .line 84
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.rc4:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 26
        25: .line 86
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        26: .line 88
      StackMap locals:
      StackMap stack:
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.RC2_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* algorithm */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 28
        27: .line 90
            aload 1 /* random */
            sipush 128
            invokestatic org.bouncycastle.crypto.util.CipherKeyGeneratorFactory.createCipherKeyGenerator:(Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
            areturn
        28: .line 94
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "cannot recognise cipher: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* algorithm */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.security.SecureRandom random
        end local 0 // org.bouncycastle.asn1.ASN1ObjectIdentifier algorithm
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   29     0  algorithm  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            0   29     1     random  Ljava/security/SecureRandom;
            8   10     2     keyGen  Lorg/bouncycastle/crypto/generators/DESedeKeyGenerator;
           22   24     2     keyGen  Lorg/bouncycastle/crypto/generators/DESKeyGenerator;
    Exceptions:
      throws java.lang.IllegalArgumentException
    MethodParameters:
           Name  Flags
      algorithm  
      random     

  private static org.bouncycastle.crypto.CipherKeyGenerator createCipherKeyGenerator(java.security.SecureRandom, int);
    descriptor: (Ljava/security/SecureRandom;I)Lorg/bouncycastle/crypto/CipherKeyGenerator;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // java.security.SecureRandom random
        start local 1 // int keySize
         0: .line 100
            new org.bouncycastle.crypto.CipherKeyGenerator
            dup
            invokespecial org.bouncycastle.crypto.CipherKeyGenerator.<init>:()V
            astore 2 /* keyGen */
        start local 2 // org.bouncycastle.crypto.CipherKeyGenerator keyGen
         1: .line 102
            aload 2 /* keyGen */
            new org.bouncycastle.crypto.KeyGenerationParameters
            dup
            aload 0 /* random */
            iload 1 /* keySize */
            invokespecial org.bouncycastle.crypto.KeyGenerationParameters.<init>:(Ljava/security/SecureRandom;I)V
            invokevirtual org.bouncycastle.crypto.CipherKeyGenerator.init:(Lorg/bouncycastle/crypto/KeyGenerationParameters;)V
         2: .line 104
            aload 2 /* keyGen */
            areturn
        end local 2 // org.bouncycastle.crypto.CipherKeyGenerator keyGen
        end local 1 // int keySize
        end local 0 // java.security.SecureRandom random
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0   random  Ljava/security/SecureRandom;
            0    3     1  keySize  I
            1    3     2   keyGen  Lorg/bouncycastle/crypto/CipherKeyGenerator;
    MethodParameters:
         Name  Flags
      random   
      keySize  
}
SourceFile: "CipherKeyGeneratorFactory.java"