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. 
public abstract class org.bouncycastle.cms.jcajce.JceKEKRecipient implements org.bouncycastle.cms.KEKRecipient
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.cms.jcajce.JceKEKRecipient
  super_class: java.lang.Object
{
  private javax.crypto.SecretKey recipientKey;
    descriptor: Ljavax/crypto/SecretKey;
    flags: (0x0002) ACC_PRIVATE

  protected org.bouncycastle.cms.jcajce.EnvelopedDataHelper helper;
    descriptor: Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
    flags: (0x0004) ACC_PROTECTED

  protected org.bouncycastle.cms.jcajce.EnvelopedDataHelper contentHelper;
    descriptor: Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
    flags: (0x0004) ACC_PROTECTED

  protected boolean validateKeySize;
    descriptor: Z
    flags: (0x0004) ACC_PROTECTED

  public void <init>(javax.crypto.SecretKey);
    descriptor: (Ljavax/crypto/SecretKey;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // javax.crypto.SecretKey recipientKey
         0: .line 23
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 19
            aload 0 /* this */
            new org.bouncycastle.cms.jcajce.EnvelopedDataHelper
            dup
            new org.bouncycastle.cms.jcajce.DefaultJcaJceExtHelper
            dup
            invokespecial org.bouncycastle.cms.jcajce.DefaultJcaJceExtHelper.<init>:()V
            invokespecial org.bouncycastle.cms.jcajce.EnvelopedDataHelper.<init>:(Lorg/bouncycastle/cms/jcajce/JcaJceExtHelper;)V
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         2: .line 20
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.contentHelper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         3: .line 21
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.validateKeySize:Z
         4: .line 25
            aload 0 /* this */
            aload 1 /* recipientKey */
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.recipientKey:Ljavax/crypto/SecretKey;
         5: .line 26
            return
        end local 1 // javax.crypto.SecretKey recipientKey
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    6     0          this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    6     1  recipientKey  Ljavax/crypto/SecretKey;
    MethodParameters:
              Name  Flags
      recipientKey  

  public org.bouncycastle.cms.jcajce.JceKEKRecipient setProvider(java.security.Provider);
    descriptor: (Ljava/security/Provider;)Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // java.security.Provider provider
         0: .line 36
            aload 0 /* this */
            new org.bouncycastle.cms.jcajce.EnvelopedDataHelper
            dup
            new org.bouncycastle.cms.jcajce.ProviderJcaJceExtHelper
            dup
            aload 1 /* provider */
            invokespecial org.bouncycastle.cms.jcajce.ProviderJcaJceExtHelper.<init>:(Ljava/security/Provider;)V
            invokespecial org.bouncycastle.cms.jcajce.EnvelopedDataHelper.<init>:(Lorg/bouncycastle/cms/jcajce/JcaJceExtHelper;)V
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         1: .line 37
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.contentHelper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         2: .line 39
            aload 0 /* this */
            areturn
        end local 1 // java.security.Provider provider
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    3     1  provider  Ljava/security/Provider;
    MethodParameters:
          Name  Flags
      provider  

  public org.bouncycastle.cms.jcajce.JceKEKRecipient setProvider(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // java.lang.String providerName
         0: .line 50
            aload 0 /* this */
            new org.bouncycastle.cms.jcajce.EnvelopedDataHelper
            dup
            new org.bouncycastle.cms.jcajce.NamedJcaJceExtHelper
            dup
            aload 1 /* providerName */
            invokespecial org.bouncycastle.cms.jcajce.NamedJcaJceExtHelper.<init>:(Ljava/lang/String;)V
            invokespecial org.bouncycastle.cms.jcajce.EnvelopedDataHelper.<init>:(Lorg/bouncycastle/cms/jcajce/JcaJceExtHelper;)V
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         1: .line 51
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.contentHelper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         2: .line 53
            aload 0 /* this */
            areturn
        end local 1 // java.lang.String providerName
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    3     0          this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    3     1  providerName  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      providerName  

  public org.bouncycastle.cms.jcajce.JceKEKRecipient setContentProvider(java.security.Provider);
    descriptor: (Ljava/security/Provider;)Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // java.security.Provider provider
         0: .line 64
            aload 0 /* this */
            new org.bouncycastle.cms.jcajce.EnvelopedDataHelper
            dup
            new org.bouncycastle.cms.jcajce.ProviderJcaJceExtHelper
            dup
            aload 1 /* provider */
            invokespecial org.bouncycastle.cms.jcajce.ProviderJcaJceExtHelper.<init>:(Ljava/security/Provider;)V
            invokespecial org.bouncycastle.cms.jcajce.EnvelopedDataHelper.<init>:(Lorg/bouncycastle/cms/jcajce/JcaJceExtHelper;)V
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.contentHelper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         1: .line 66
            aload 0 /* this */
            areturn
        end local 1 // java.security.Provider provider
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    2     1  provider  Ljava/security/Provider;
    MethodParameters:
          Name  Flags
      provider  

  public org.bouncycastle.cms.jcajce.JceKEKRecipient setContentProvider(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // java.lang.String providerName
         0: .line 77
            aload 0 /* this */
            new org.bouncycastle.cms.jcajce.EnvelopedDataHelper
            dup
            new org.bouncycastle.cms.jcajce.NamedJcaJceExtHelper
            dup
            aload 1 /* providerName */
            invokespecial org.bouncycastle.cms.jcajce.NamedJcaJceExtHelper.<init>:(Ljava/lang/String;)V
            invokespecial org.bouncycastle.cms.jcajce.EnvelopedDataHelper.<init>:(Lorg/bouncycastle/cms/jcajce/JcaJceExtHelper;)V
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.contentHelper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
         1: .line 79
            aload 0 /* this */
            areturn
        end local 1 // java.lang.String providerName
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    2     1  providerName  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      providerName  

  public org.bouncycastle.cms.jcajce.JceKEKRecipient setKeySizeValidation(boolean);
    descriptor: (Z)Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // boolean doValidate
         0: .line 93
            aload 0 /* this */
            iload 1 /* doValidate */
            putfield org.bouncycastle.cms.jcajce.JceKEKRecipient.validateKeySize:Z
         1: .line 95
            aload 0 /* this */
            areturn
        end local 1 // boolean doValidate
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    2     1  doValidate  Z
    MethodParameters:
            Name  Flags
      doValidate  

  protected java.security.Key extractSecretKey(org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.asn1.x509.AlgorithmIdentifier, byte[]);
    descriptor: (Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;[B)Ljava/security/Key;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=6, args_size=4
        start local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncryptionAlgorithm
        start local 2 // org.bouncycastle.asn1.x509.AlgorithmIdentifier encryptedKeyAlgorithm
        start local 3 // byte[] encryptedContentEncryptionKey
         0: .line 101
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 1 /* keyEncryptionAlgorithm */
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.recipientKey:Ljavax/crypto/SecretKey;
            invokevirtual org.bouncycastle.cms.jcajce.EnvelopedDataHelper.createSymmetricUnwrapper:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Ljavax/crypto/SecretKey;)Lorg/bouncycastle/operator/SymmetricKeyUnwrapper;
            astore 4 /* unwrapper */
        start local 4 // org.bouncycastle.operator.SymmetricKeyUnwrapper unwrapper
         1: .line 105
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 2 /* encryptedKeyAlgorithm */
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 4 /* unwrapper */
            aload 2 /* encryptedKeyAlgorithm */
            aload 3 /* encryptedContentEncryptionKey */
            invokevirtual org.bouncycastle.operator.SymmetricKeyUnwrapper.generateUnwrappedKey:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;[B)Lorg/bouncycastle/operator/GenericKey;
            invokevirtual org.bouncycastle.cms.jcajce.EnvelopedDataHelper.getJceKey:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/operator/GenericKey;)Ljava/security/Key;
            astore 5 /* key */
        start local 5 // java.security.Key key
         2: .line 107
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.validateKeySize:Z
            ifeq 4
         3: .line 109
            aload 0 /* this */
            getfield org.bouncycastle.cms.jcajce.JceKEKRecipient.helper:Lorg/bouncycastle/cms/jcajce/EnvelopedDataHelper;
            aload 2 /* encryptedKeyAlgorithm */
            aload 5 /* key */
            invokevirtual org.bouncycastle.cms.jcajce.EnvelopedDataHelper.keySizeCheck:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Ljava/security/Key;)V
         4: .line 112
      StackMap locals: org.bouncycastle.operator.SymmetricKeyUnwrapper java.security.Key
      StackMap stack:
            aload 5 /* key */
         5: areturn
        end local 5 // java.security.Key key
         6: .line 114
      StackMap locals: org.bouncycastle.cms.jcajce.JceKEKRecipient org.bouncycastle.asn1.x509.AlgorithmIdentifier org.bouncycastle.asn1.x509.AlgorithmIdentifier byte[] org.bouncycastle.operator.SymmetricKeyUnwrapper
      StackMap stack: org.bouncycastle.operator.OperatorException
            astore 5 /* e */
        start local 5 // org.bouncycastle.operator.OperatorException e
         7: .line 116
            new org.bouncycastle.cms.CMSException
            dup
            new java.lang.StringBuilder
            dup
            ldc "exception unwrapping key: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 5 /* e */
            invokevirtual org.bouncycastle.operator.OperatorException.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 5 /* e */
            invokespecial org.bouncycastle.cms.CMSException.<init>:(Ljava/lang/String;Ljava/lang/Exception;)V
            athrow
        end local 5 // org.bouncycastle.operator.OperatorException e
        end local 4 // org.bouncycastle.operator.SymmetricKeyUnwrapper unwrapper
        end local 3 // byte[] encryptedContentEncryptionKey
        end local 2 // org.bouncycastle.asn1.x509.AlgorithmIdentifier encryptedKeyAlgorithm
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncryptionAlgorithm
        end local 0 // org.bouncycastle.cms.jcajce.JceKEKRecipient this
      LocalVariableTable:
        Start  End  Slot                           Name  Signature
            0    8     0                           this  Lorg/bouncycastle/cms/jcajce/JceKEKRecipient;
            0    8     1         keyEncryptionAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            0    8     2          encryptedKeyAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            0    8     3  encryptedContentEncryptionKey  [B
            1    8     4                      unwrapper  Lorg/bouncycastle/operator/SymmetricKeyUnwrapper;
            2    6     5                            key  Ljava/security/Key;
            7    8     5                              e  Lorg/bouncycastle/operator/OperatorException;
      Exception table:
        from    to  target  type
           1     5       6  Class org.bouncycastle.operator.OperatorException
    Exceptions:
      throws org.bouncycastle.cms.CMSException
    MethodParameters:
                               Name  Flags
      keyEncryptionAlgorithm         
      encryptedKeyAlgorithm          
      encryptedContentEncryptionKey  
}
SourceFile: "JceKEKRecipient.java"