http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
class org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 implements org.bouncycastle.cms.jcajce.EnvelopedDataHelper$JCECallback
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1
  super_class: java.lang.Object
{
  final org.bouncycastle.cms.jcajce.EnvelopedDataHelper this$0;
    descriptor: Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final org.bouncycastle.asn1.x509.AlgorithmIdentifier val$encryptionAlgID;
    descriptor: Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final java.security.Key val$sKey;
    descriptor: Ljava/security/Key;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.bouncycastle.cms.jcajce.EnvelopedDataHelper, org.bouncycastle.asn1.x509.AlgorithmIdentifier, java.security.Key);
    descriptor: (Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Ljava/security/Key;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 this
         0: .line 347
            aload 0 /* this */
            aload 1
            putfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.this$0:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 0 /* this */
            aload 2
            putfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$encryptionAlgID:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            aload 0 /* this */
            aload 3
            putfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$sKey:Ljava/security/Key;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper$1;
    MethodParameters:
                     Name  Flags
      this$0               final
      val$encryptionAlgID  final
      val$sKey             final

  public java.lang.Object doInJCE();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=5, args_size=1
        start local 0 // org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 this
         0: .line 354
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.this$0:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$encryptionAlgID:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.cms.jcajce.EnvelopedDataHelper.createCipher:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Ljavax/crypto/Cipher;
            astore 1 /* cipher */
        start local 1 // javax.crypto.Cipher cipher
         1: .line 355
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$encryptionAlgID:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getParameters:()Lorg/bouncycastle/asn1/ASN1Encodable;
            astore 2 /* sParams */
        start local 2 // org.bouncycastle.asn1.ASN1Encodable sParams
         2: .line 356
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$encryptionAlgID:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.getId:()Ljava/lang/String;
            astore 3 /* encAlg */
        start local 3 // java.lang.String encAlg
         3: .line 358
            aload 2 /* sParams */
            ifnull 20
            aload 2 /* sParams */
            instanceof org.bouncycastle.asn1.ASN1Null
            ifne 20
         4: .line 362
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.this$0:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$encryptionAlgID:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.cms.jcajce.EnvelopedDataHelper.createAlgorithmParameters:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Ljava/security/AlgorithmParameters;
            astore 4 /* params */
        start local 4 // java.security.AlgorithmParameters params
         5: .line 364
            aload 4 /* params */
            aload 2 /* sParams */
            invokestatic org.bouncycastle.cms.jcajce.CMSUtils.loadParameters:(Ljava/security/AlgorithmParameters;Lorg/bouncycastle/asn1/ASN1Encodable;)V
         6: .line 366
            aload 1 /* cipher */
            iconst_2
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$sKey:Ljava/security/Key;
            aload 4 /* params */
            invokevirtual javax.crypto.Cipher.init:(ILjava/security/Key;Ljava/security/AlgorithmParameters;)V
        end local 4 // java.security.AlgorithmParameters params
         7: .line 367
            goto 27
         8: .line 368
      StackMap locals: org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 javax.crypto.Cipher org.bouncycastle.asn1.ASN1Encodable java.lang.String
      StackMap stack: java.security.NoSuchAlgorithmException
            astore 4 /* e */
        start local 4 // java.security.NoSuchAlgorithmException e
         9: .line 370
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSAlgorithm.DES_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.getId:()Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 15
        10: .line 371
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSEnvelopedDataGenerator.DES_EDE3_CBC:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 15
        11: .line 372
            aload 3 /* encAlg */
            ldc "1.3.6.1.4.1.188.7.1.1.2"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 15
        12: .line 373
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSEnvelopedDataGenerator.AES128_CBC:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 15
        13: .line 374
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSEnvelopedDataGenerator.AES192_CBC:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 15
        14: .line 375
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSEnvelopedDataGenerator.AES256_CBC:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 19
        15: .line 377
      StackMap locals: java.security.NoSuchAlgorithmException
      StackMap stack:
            aload 1 /* cipher */
            iconst_2
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$sKey:Ljava/security/Key;
            new javax.crypto.spec.IvParameterSpec
            dup
        16: .line 378
            aload 2 /* sParams */
            invokestatic org.bouncycastle.asn1.ASN1OctetString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getOctets:()[B
            invokespecial javax.crypto.spec.IvParameterSpec.<init>:([B)V
        17: .line 377
            invokevirtual javax.crypto.Cipher.init:(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V
        18: .line 379
            goto 27
        19: .line 382
      StackMap locals:
      StackMap stack:
            aload 4 /* e */
            athrow
        end local 4 // java.security.NoSuchAlgorithmException e
        20: .line 388
      StackMap locals:
      StackMap stack:
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSAlgorithm.DES_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.getId:()Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 24
        21: .line 389
            aload 3 /* encAlg */
            getstatic org.bouncycastle.cms.CMSEnvelopedDataGenerator.DES_EDE3_CBC:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 24
        22: .line 390
            aload 3 /* encAlg */
            ldc "1.3.6.1.4.1.188.7.1.1.2"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 24
        23: .line 391
            aload 3 /* encAlg */
            ldc "1.2.840.113533.7.66.10"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 26
        24: .line 393
      StackMap locals:
      StackMap stack:
            aload 1 /* cipher */
            iconst_2
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$sKey:Ljava/security/Key;
            new javax.crypto.spec.IvParameterSpec
            dup
            bipush 8
            newarray 8
            invokespecial javax.crypto.spec.IvParameterSpec.<init>:([B)V
            invokevirtual javax.crypto.Cipher.init:(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V
        25: .line 394
            goto 27
        26: .line 397
      StackMap locals:
      StackMap stack:
            aload 1 /* cipher */
            iconst_2
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1.val$sKey:Ljava/security/Key;
            invokevirtual javax.crypto.Cipher.init:(ILjava/security/Key;)V
        27: .line 401
      StackMap locals:
      StackMap stack:
            aload 1 /* cipher */
            areturn
        end local 3 // java.lang.String encAlg
        end local 2 // org.bouncycastle.asn1.ASN1Encodable sParams
        end local 1 // javax.crypto.Cipher cipher
        end local 0 // org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1 this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   28     0     this  Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper$1;
            1   28     1   cipher  Ljavax/crypto/Cipher;
            2   28     2  sParams  Lorg/bouncycastle/asn1/ASN1Encodable;
            3   28     3   encAlg  Ljava/lang/String;
            5    7     4   params  Ljava/security/AlgorithmParameters;
            9   20     4        e  Ljava/security/NoSuchAlgorithmException;
      Exception table:
        from    to  target  type
           4     7       8  Class java.security.NoSuchAlgorithmException
    Exceptions:
      throws org.bouncycastle.cms.CMSException, java.security.InvalidAlgorithmParameterException, java.security.InvalidKeyException, java.security.spec.InvalidParameterSpecException, java.security.NoSuchAlgorithmException, javax.crypto.NoSuchPaddingException, java.security.NoSuchProviderException
}
SourceFile: "EnvelopedDataHelper.java"
EnclosingMethod: org.bouncycastle.cms.jcajce.EnvelopedDataHelper.createContentCipher:(Ljava/security/Key;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)Ljavax/crypto/Cipher;
NestHost: org.bouncycastle.cms.jcajce.EnvelopedDataHelper
InnerClasses:
  org.bouncycastle.cms.jcajce.EnvelopedDataHelper$1
  abstract JCECallback = org.bouncycastle.cms.jcajce.EnvelopedDataHelper$JCECallback of org.bouncycastle.cms.jcajce.EnvelopedDataHelper