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 class org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper extends org.bouncycastle.operator.SymmetricKeyWrapper
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper
  super_class: org.bouncycastle.operator.SymmetricKeyWrapper
{
  private org.bouncycastle.operator.jcajce.OperatorHelper helper;
    descriptor: Lorg/bouncycastle/operator/jcajce/OperatorHelper;
    flags: (0x0002) ACC_PRIVATE

  private java.security.SecureRandom random;
    descriptor: Ljava/security/SecureRandom;
    flags: (0x0002) ACC_PRIVATE

  private javax.crypto.SecretKey wrappingKey;
    descriptor: Ljavax/crypto/SecretKey;
    flags: (0x0002) ACC_PRIVATE

  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.operator.jcajce.JceSymmetricKeyWrapper this
        start local 1 // javax.crypto.SecretKey wrappingKey
         0: .line 35
            aload 0 /* this */
            aload 1 /* wrappingKey */
            invokestatic org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.determineKeyEncAlg:(Ljavax/crypto/SecretKey;)Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokespecial org.bouncycastle.operator.SymmetricKeyWrapper.<init>:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)V
         1: .line 29
            aload 0 /* this */
            new org.bouncycastle.operator.jcajce.OperatorHelper
            dup
            new org.bouncycastle.jcajce.util.DefaultJcaJceHelper
            dup
            invokespecial org.bouncycastle.jcajce.util.DefaultJcaJceHelper.<init>:()V
            invokespecial org.bouncycastle.operator.jcajce.OperatorHelper.<init>:(Lorg/bouncycastle/jcajce/util/JcaJceHelper;)V
            putfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.helper:Lorg/bouncycastle/operator/jcajce/OperatorHelper;
         2: .line 37
            aload 0 /* this */
            aload 1 /* wrappingKey */
            putfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.wrappingKey:Ljavax/crypto/SecretKey;
         3: .line 38
            return
        end local 1 // javax.crypto.SecretKey wrappingKey
        end local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    4     0         this  Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
            0    4     1  wrappingKey  Ljavax/crypto/SecretKey;
    MethodParameters:
             Name  Flags
      wrappingKey  

  public org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper setProvider(java.security.Provider);
    descriptor: (Ljava/security/Provider;)Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
        start local 1 // java.security.Provider provider
         0: .line 42
            aload 0 /* this */
            new org.bouncycastle.operator.jcajce.OperatorHelper
            dup
            new org.bouncycastle.jcajce.util.ProviderJcaJceHelper
            dup
            aload 1 /* provider */
            invokespecial org.bouncycastle.jcajce.util.ProviderJcaJceHelper.<init>:(Ljava/security/Provider;)V
            invokespecial org.bouncycastle.operator.jcajce.OperatorHelper.<init>:(Lorg/bouncycastle/jcajce/util/JcaJceHelper;)V
            putfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.helper:Lorg/bouncycastle/operator/jcajce/OperatorHelper;
         1: .line 44
            aload 0 /* this */
            areturn
        end local 1 // java.security.Provider provider
        end local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
            0    2     1  provider  Ljava/security/Provider;
    MethodParameters:
          Name  Flags
      provider  

  public org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper setProvider(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
        start local 1 // java.lang.String providerName
         0: .line 49
            aload 0 /* this */
            new org.bouncycastle.operator.jcajce.OperatorHelper
            dup
            new org.bouncycastle.jcajce.util.NamedJcaJceHelper
            dup
            aload 1 /* providerName */
            invokespecial org.bouncycastle.jcajce.util.NamedJcaJceHelper.<init>:(Ljava/lang/String;)V
            invokespecial org.bouncycastle.operator.jcajce.OperatorHelper.<init>:(Lorg/bouncycastle/jcajce/util/JcaJceHelper;)V
            putfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.helper:Lorg/bouncycastle/operator/jcajce/OperatorHelper;
         1: .line 51
            aload 0 /* this */
            areturn
        end local 1 // java.lang.String providerName
        end local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
            0    2     1  providerName  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      providerName  

  public org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper setSecureRandom(java.security.SecureRandom);
    descriptor: (Ljava/security/SecureRandom;)Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
        start local 1 // java.security.SecureRandom random
         0: .line 56
            aload 0 /* this */
            aload 1 /* random */
            putfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.random:Ljava/security/SecureRandom;
         1: .line 58
            aload 0 /* this */
            areturn
        end local 1 // java.security.SecureRandom random
        end local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
            0    2     1  random  Ljava/security/SecureRandom;
    MethodParameters:
        Name  Flags
      random  

  public byte[] generateWrappedKey(org.bouncycastle.operator.GenericKey);
    descriptor: (Lorg/bouncycastle/operator/GenericKey;)[B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
        start local 1 // org.bouncycastle.operator.GenericKey encryptionKey
         0: .line 64
            aload 1 /* encryptionKey */
            invokestatic org.bouncycastle.operator.jcajce.OperatorUtils.getJceKey:(Lorg/bouncycastle/operator/GenericKey;)Ljava/security/Key;
            astore 2 /* contentEncryptionKeySpec */
        start local 2 // java.security.Key contentEncryptionKeySpec
         1: .line 66
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.helper:Lorg/bouncycastle/operator/jcajce/OperatorHelper;
            aload 0 /* this */
            invokevirtual org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.getAlgorithmIdentifier:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.operator.jcajce.OperatorHelper.createSymmetricWrapper:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Ljavax/crypto/Cipher;
            astore 3 /* keyEncryptionCipher */
        start local 3 // javax.crypto.Cipher keyEncryptionCipher
         2: .line 70
            aload 3 /* keyEncryptionCipher */
            iconst_3
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.wrappingKey:Ljavax/crypto/SecretKey;
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.random:Ljava/security/SecureRandom;
            invokevirtual javax.crypto.Cipher.init:(ILjava/security/Key;Ljava/security/SecureRandom;)V
         3: .line 72
            aload 3 /* keyEncryptionCipher */
            aload 2 /* contentEncryptionKeySpec */
            invokevirtual javax.crypto.Cipher.wrap:(Ljava/security/Key;)[B
         4: areturn
         5: .line 74
      StackMap locals: org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper org.bouncycastle.operator.GenericKey java.security.Key javax.crypto.Cipher
      StackMap stack: java.security.GeneralSecurityException
            astore 4 /* e */
        start local 4 // java.security.GeneralSecurityException e
         6: .line 76
            new org.bouncycastle.operator.OperatorException
            dup
            new java.lang.StringBuilder
            dup
            ldc "cannot wrap key: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 4 /* e */
            invokevirtual java.security.GeneralSecurityException.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 4 /* e */
            invokespecial org.bouncycastle.operator.OperatorException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 4 // java.security.GeneralSecurityException e
        end local 3 // javax.crypto.Cipher keyEncryptionCipher
        end local 2 // java.security.Key contentEncryptionKeySpec
        end local 1 // org.bouncycastle.operator.GenericKey encryptionKey
        end local 0 // org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot                      Name  Signature
            0    7     0                      this  Lorg/bouncycastle/operator/jcajce/JceSymmetricKeyWrapper;
            0    7     1             encryptionKey  Lorg/bouncycastle/operator/GenericKey;
            1    7     2  contentEncryptionKeySpec  Ljava/security/Key;
            2    7     3       keyEncryptionCipher  Ljavax/crypto/Cipher;
            6    7     4                         e  Ljava/security/GeneralSecurityException;
      Exception table:
        from    to  target  type
           2     4       5  Class java.security.GeneralSecurityException
    Exceptions:
      throws org.bouncycastle.operator.OperatorException
    MethodParameters:
               Name  Flags
      encryptionKey  

  private static org.bouncycastle.asn1.x509.AlgorithmIdentifier determineKeyEncAlg(javax.crypto.SecretKey);
    descriptor: (Ljavax/crypto/SecretKey;)Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // javax.crypto.SecretKey key
         0: .line 82
            aload 0 /* key */
            invokeinterface javax.crypto.SecretKey.getAlgorithm:()Ljava/lang/String;
            aload 0 /* key */
            invokeinterface javax.crypto.SecretKey.getEncoded:()[B
            arraylength
            bipush 8
            imul
            invokestatic org.bouncycastle.operator.jcajce.JceSymmetricKeyWrapper.determineKeyEncAlg:(Ljava/lang/String;I)Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            areturn
        end local 0 // javax.crypto.SecretKey key
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   key  Ljavax/crypto/SecretKey;
    MethodParameters:
      Name  Flags
      key   

  static org.bouncycastle.asn1.x509.AlgorithmIdentifier determineKeyEncAlg(java.lang.String, int);
    descriptor: (Ljava/lang/String;I)Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=7, locals=3, args_size=2
        start local 0 // java.lang.String algorithm
        start local 1 // int keySizeInBits
         0: .line 87
            aload 0 /* algorithm */
            ldc "DES"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifne 1
            aload 0 /* algorithm */
            ldc "TripleDES"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 2
         1: .line 89
      StackMap locals:
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_alg_CMS3DESwrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            getstatic org.bouncycastle.asn1.DERNull.INSTANCE:Lorg/bouncycastle/asn1/DERNull;
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/asn1/ASN1Encodable;)V
            areturn
         2: .line 91
      StackMap locals:
      StackMap stack:
            aload 0 /* algorithm */
            ldc "RC2"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 6
         3: .line 93
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            new org.bouncycastle.asn1.ASN1ObjectIdentifier
            dup
         4: .line 94
            ldc "1.2.840.113549.1.9.16.3.7"
            invokespecial org.bouncycastle.asn1.ASN1ObjectIdentifier.<init>:(Ljava/lang/String;)V
            new org.bouncycastle.asn1.ASN1Integer
            dup
            ldc 58
            invokespecial org.bouncycastle.asn1.ASN1Integer.<init>:(J)V
         5: .line 93
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/asn1/ASN1Encodable;)V
            areturn
         6: .line 96
      StackMap locals:
      StackMap stack:
            aload 0 /* algorithm */
            ldc "AES"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 18
         7: .line 100
            iload 1 /* keySizeInBits */
            sipush 128
            if_icmpne 10
         8: .line 102
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes128_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
         9: .line 103
            goto 17
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        10: .line 104
      StackMap locals:
      StackMap stack:
            iload 1 /* keySizeInBits */
            sipush 192
            if_icmpne 13
        11: .line 106
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes192_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        12: .line 107
            goto 17
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        13: .line 108
      StackMap locals:
      StackMap stack:
            iload 1 /* keySizeInBits */
            sipush 256
            if_icmpne 16
        14: .line 110
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes256_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        15: .line 111
            goto 17
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        16: .line 114
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            ldc "illegal keysize in AES"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        17: .line 117
      StackMap locals: org.bouncycastle.asn1.ASN1ObjectIdentifier
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 2 /* wrapOid */
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
            areturn
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        18: .line 119
      StackMap locals:
      StackMap stack:
            aload 0 /* algorithm */
            ldc "SEED"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 22
        19: .line 122
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
        20: .line 123
            getstatic org.bouncycastle.asn1.kisa.KISAObjectIdentifiers.id_npki_app_cmsSeed_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
        21: .line 122
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
            areturn
        22: .line 125
      StackMap locals:
      StackMap stack:
            aload 0 /* algorithm */
            ldc "Camellia"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 36
        23: .line 129
            iload 1 /* keySizeInBits */
            sipush 128
            if_icmpne 26
        24: .line 131
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia128_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        25: .line 132
            goto 35
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        26: .line 133
      StackMap locals:
      StackMap stack:
            iload 1 /* keySizeInBits */
            sipush 192
            if_icmpne 29
        27: .line 135
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia192_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        28: .line 136
            goto 35
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        29: .line 137
      StackMap locals:
      StackMap stack:
            iload 1 /* keySizeInBits */
            sipush 256
            if_icmpne 32
        30: .line 139
            getstatic org.bouncycastle.asn1.ntt.NTTObjectIdentifiers.id_camellia256_wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            astore 2 /* wrapOid */
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        31: .line 140
            goto 35
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        32: .line 143
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
        33: .line 144
            ldc "illegal keysize in Camellia"
        34: .line 143
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        start local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        35: .line 147
      StackMap locals: org.bouncycastle.asn1.ASN1ObjectIdentifier
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 2 /* wrapOid */
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
            areturn
        end local 2 // org.bouncycastle.asn1.ASN1ObjectIdentifier wrapOid
        36: .line 152
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            ldc "unknown algorithm"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // int keySizeInBits
        end local 0 // java.lang.String algorithm
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   37     0      algorithm  Ljava/lang/String;
            0   37     1  keySizeInBits  I
            9   10     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           12   13     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           15   16     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           17   18     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           25   26     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           28   29     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           31   32     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
           35   36     2        wrapOid  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    MethodParameters:
               Name  Flags
      algorithm      
      keySizeInBits  
}
SourceFile: "JceSymmetricKeyWrapper.java"