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.KeyAgreeRecipientInfoGenerator implements org.bouncycastle.cms.RecipientInfoGenerator
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator
  super_class: java.lang.Object
{
  private org.bouncycastle.asn1.ASN1ObjectIdentifier keyAgreementOID;
    descriptor: Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    flags: (0x0002) ACC_PRIVATE

  private org.bouncycastle.asn1.ASN1ObjectIdentifier keyEncryptionOID;
    descriptor: Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    flags: (0x0002) ACC_PRIVATE

  private org.bouncycastle.asn1.x509.SubjectPublicKeyInfo originatorKeyInfo;
    descriptor: Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
    flags: (0x0002) ACC_PRIVATE

  protected void <init>(org.bouncycastle.asn1.ASN1ObjectIdentifier, org.bouncycastle.asn1.x509.SubjectPublicKeyInfo, org.bouncycastle.asn1.ASN1ObjectIdentifier);
    descriptor: (Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
        start local 1 // org.bouncycastle.asn1.ASN1ObjectIdentifier keyAgreementOID
        start local 2 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo originatorKeyInfo
        start local 3 // org.bouncycastle.asn1.ASN1ObjectIdentifier keyEncryptionOID
         0: .line 25
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 27
            aload 0 /* this */
            aload 2 /* originatorKeyInfo */
            putfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.originatorKeyInfo:Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
         2: .line 28
            aload 0 /* this */
            aload 1 /* keyAgreementOID */
            putfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyAgreementOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
         3: .line 29
            aload 0 /* this */
            aload 3 /* keyEncryptionOID */
            putfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
         4: .line 30
            return
        end local 3 // org.bouncycastle.asn1.ASN1ObjectIdentifier keyEncryptionOID
        end local 2 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo originatorKeyInfo
        end local 1 // org.bouncycastle.asn1.ASN1ObjectIdentifier keyAgreementOID
        end local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    5     0               this  Lorg/bouncycastle/cms/KeyAgreeRecipientInfoGenerator;
            0    5     1    keyAgreementOID  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            0    5     2  originatorKeyInfo  Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
            0    5     3   keyEncryptionOID  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    MethodParameters:
                   Name  Flags
      keyAgreementOID    
      originatorKeyInfo  
      keyEncryptionOID   

  public org.bouncycastle.asn1.cms.RecipientInfo generate(org.bouncycastle.operator.GenericKey);
    descriptor: (Lorg/bouncycastle/operator/GenericKey;)Lorg/bouncycastle/asn1/cms/RecipientInfo;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=7, args_size=2
        start local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
        start local 1 // org.bouncycastle.operator.GenericKey contentEncryptionKey
         0: .line 35
            new org.bouncycastle.asn1.cms.OriginatorIdentifierOrKey
            dup
         1: .line 36
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.originatorKeyInfo:Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
            invokevirtual org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.createOriginatorPublicKey:(Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;)Lorg/bouncycastle/asn1/cms/OriginatorPublicKey;
         2: .line 35
            invokespecial org.bouncycastle.asn1.cms.OriginatorIdentifierOrKey.<init>:(Lorg/bouncycastle/asn1/cms/OriginatorPublicKey;)V
            astore 2 /* originator */
        start local 2 // org.bouncycastle.asn1.cms.OriginatorIdentifierOrKey originator
         3: .line 39
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.getId:()Ljava/lang/String;
            invokestatic org.bouncycastle.cms.CMSUtils.isDES:(Ljava/lang/String;)Z
            ifne 4
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_alg_CMSRC2wrap:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.equals:(Ljava/lang/Object;)Z
            ifeq 6
         4: .line 41
      StackMap locals: org.bouncycastle.asn1.cms.OriginatorIdentifierOrKey
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID: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
            astore 3 /* keyEncAlg */
        start local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
         5: .line 42
            goto 10
        end local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
         6: .line 43
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyAgreementOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokestatic org.bouncycastle.cms.CMSUtils.isGOST:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Z
            ifeq 9
         7: .line 45
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            new org.bouncycastle.asn1.cryptopro.Gost2814789KeyWrapParameters
            dup
            getstatic org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers.id_Gost28147_89_CryptoPro_A_ParamSet:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokespecial org.bouncycastle.asn1.cryptopro.Gost2814789KeyWrapParameters.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/asn1/ASN1Encodable;)V
            astore 3 /* keyEncAlg */
        start local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
         8: .line 46
            goto 10
        end local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
         9: .line 49
      StackMap locals:
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyEncryptionOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)V
            astore 3 /* keyEncAlg */
        start local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
        10: .line 52
      StackMap locals: org.bouncycastle.asn1.x509.AlgorithmIdentifier
      StackMap stack:
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 0 /* this */
            getfield org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.keyAgreementOID:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 3 /* keyEncAlg */
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/asn1/ASN1Encodable;)V
            astore 4 /* keyAgreeAlg */
        start local 4 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyAgreeAlg
        11: .line 54
            aload 0 /* this */
            aload 4 /* keyAgreeAlg */
            aload 3 /* keyEncAlg */
            aload 1 /* contentEncryptionKey */
            invokevirtual org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.generateRecipientEncryptedKeys:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/operator/GenericKey;)Lorg/bouncycastle/asn1/ASN1Sequence;
            astore 5 /* recipients */
        start local 5 // org.bouncycastle.asn1.ASN1Sequence recipients
        12: .line 55
            aload 0 /* this */
            aload 4 /* keyAgreeAlg */
            invokevirtual org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator.getUserKeyingMaterial:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)[B
            astore 6 /* userKeyingMaterial */
        start local 6 // byte[] userKeyingMaterial
        13: .line 57
            aload 6 /* userKeyingMaterial */
            ifnull 17
        14: .line 59
            new org.bouncycastle.asn1.cms.RecipientInfo
            dup
            new org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo
            dup
            aload 2 /* originator */
            new org.bouncycastle.asn1.DEROctetString
            dup
            aload 6 /* userKeyingMaterial */
            invokespecial org.bouncycastle.asn1.DEROctetString.<init>:([B)V
        15: .line 60
            aload 4 /* keyAgreeAlg */
            aload 5 /* recipients */
            invokespecial org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo.<init>:(Lorg/bouncycastle/asn1/cms/OriginatorIdentifierOrKey;Lorg/bouncycastle/asn1/ASN1OctetString;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/ASN1Sequence;)V
        16: .line 59
            invokespecial org.bouncycastle.asn1.cms.RecipientInfo.<init>:(Lorg/bouncycastle/asn1/cms/KeyAgreeRecipientInfo;)V
            areturn
        17: .line 64
      StackMap locals: org.bouncycastle.asn1.x509.AlgorithmIdentifier org.bouncycastle.asn1.ASN1Sequence byte[]
      StackMap stack:
            new org.bouncycastle.asn1.cms.RecipientInfo
            dup
            new org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo
            dup
            aload 2 /* originator */
            aconst_null
            aload 4 /* keyAgreeAlg */
            aload 5 /* recipients */
            invokespecial org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo.<init>:(Lorg/bouncycastle/asn1/cms/OriginatorIdentifierOrKey;Lorg/bouncycastle/asn1/ASN1OctetString;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/ASN1Sequence;)V
            invokespecial org.bouncycastle.asn1.cms.RecipientInfo.<init>:(Lorg/bouncycastle/asn1/cms/KeyAgreeRecipientInfo;)V
            areturn
        end local 6 // byte[] userKeyingMaterial
        end local 5 // org.bouncycastle.asn1.ASN1Sequence recipients
        end local 4 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyAgreeAlg
        end local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncAlg
        end local 2 // org.bouncycastle.asn1.cms.OriginatorIdentifierOrKey originator
        end local 1 // org.bouncycastle.operator.GenericKey contentEncryptionKey
        end local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0   18     0                  this  Lorg/bouncycastle/cms/KeyAgreeRecipientInfoGenerator;
            0   18     1  contentEncryptionKey  Lorg/bouncycastle/operator/GenericKey;
            3   18     2            originator  Lorg/bouncycastle/asn1/cms/OriginatorIdentifierOrKey;
            5    6     3             keyEncAlg  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            8    9     3             keyEncAlg  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
           10   18     3             keyEncAlg  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
           11   18     4           keyAgreeAlg  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
           12   18     5            recipients  Lorg/bouncycastle/asn1/ASN1Sequence;
           13   18     6    userKeyingMaterial  [B
    Exceptions:
      throws org.bouncycastle.cms.CMSException
    MethodParameters:
                      Name  Flags
      contentEncryptionKey  

  protected org.bouncycastle.asn1.cms.OriginatorPublicKey createOriginatorPublicKey(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo);
    descriptor: (Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;)Lorg/bouncycastle/asn1/cms/OriginatorPublicKey;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
        start local 1 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo originatorKeyInfo
         0: .line 70
            new org.bouncycastle.asn1.cms.OriginatorPublicKey
            dup
         1: .line 71
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 1 /* originatorKeyInfo */
            invokevirtual org.bouncycastle.asn1.x509.SubjectPublicKeyInfo.getAlgorithm:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getAlgorithm:()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
         2: .line 72
            aload 1 /* originatorKeyInfo */
            invokevirtual org.bouncycastle.asn1.x509.SubjectPublicKeyInfo.getPublicKeyData:()Lorg/bouncycastle/asn1/DERBitString;
            invokevirtual org.bouncycastle.asn1.DERBitString.getBytes:()[B
         3: .line 70
            invokespecial org.bouncycastle.asn1.cms.OriginatorPublicKey.<init>:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;[B)V
            areturn
        end local 1 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo originatorKeyInfo
        end local 0 // org.bouncycastle.cms.KeyAgreeRecipientInfoGenerator this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    4     0               this  Lorg/bouncycastle/cms/KeyAgreeRecipientInfoGenerator;
            0    4     1  originatorKeyInfo  Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
    MethodParameters:
                   Name  Flags
      originatorKeyInfo  

  protected abstract org.bouncycastle.asn1.ASN1Sequence generateRecipientEncryptedKeys(org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.operator.GenericKey);
    descriptor: (Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/operator/GenericKey;)Lorg/bouncycastle/asn1/ASN1Sequence;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.cms.CMSException
    MethodParameters:
                      Name  Flags
      keyAgreeAlgorithm     
      keyEncAlgorithm       
      contentEncryptionKey  

  protected abstract byte[] getUserKeyingMaterial(org.bouncycastle.asn1.x509.AlgorithmIdentifier);
    descriptor: (Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)[B
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.cms.CMSException
    MethodParameters:
                   Name  Flags
      keyAgreeAlgorithm  
}
SourceFile: "KeyAgreeRecipientInfoGenerator.java"