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.CMSEnvelopedHelper
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.cms.CMSEnvelopedHelper
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.cms.CMSEnvelopedHelper this
         0: .line 19
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.bouncycastle.cms.CMSEnvelopedHelper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/cms/CMSEnvelopedHelper;

  static org.bouncycastle.cms.RecipientInformationStore buildRecipientInformationStore(org.bouncycastle.asn1.ASN1Set, org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.cms.CMSSecureReadable);
    descriptor: (Lorg/bouncycastle/asn1/ASN1Set;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;)Lorg/bouncycastle/cms/RecipientInformationStore;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.bouncycastle.asn1.ASN1Set recipientInfos
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        start local 2 // org.bouncycastle.cms.CMSSecureReadable secureReadable
         0: .line 24
            aload 0 /* recipientInfos */
            aload 1 /* messageAlgorithm */
            aload 2 /* secureReadable */
            aconst_null
            invokestatic org.bouncycastle.cms.CMSEnvelopedHelper.buildRecipientInformationStore:(Lorg/bouncycastle/asn1/ASN1Set;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)Lorg/bouncycastle/cms/RecipientInformationStore;
            areturn
        end local 2 // org.bouncycastle.cms.CMSSecureReadable secureReadable
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        end local 0 // org.bouncycastle.asn1.ASN1Set recipientInfos
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0    recipientInfos  Lorg/bouncycastle/asn1/ASN1Set;
            0    1     1  messageAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            0    1     2    secureReadable  Lorg/bouncycastle/cms/CMSSecureReadable;
    MethodParameters:
                  Name  Flags
      recipientInfos    
      messageAlgorithm  
      secureReadable    

  static org.bouncycastle.cms.RecipientInformationStore buildRecipientInformationStore(org.bouncycastle.asn1.ASN1Set, org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.cms.CMSSecureReadable, org.bouncycastle.cms.AuthAttributesProvider);
    descriptor: (Lorg/bouncycastle/asn1/ASN1Set;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)Lorg/bouncycastle/cms/RecipientInformationStore;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=7, args_size=4
        start local 0 // org.bouncycastle.asn1.ASN1Set recipientInfos
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        start local 2 // org.bouncycastle.cms.CMSSecureReadable secureReadable
        start local 3 // org.bouncycastle.cms.AuthAttributesProvider additionalData
         0: .line 30
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 4 /* infos */
        start local 4 // java.util.List infos
         1: .line 31
            iconst_0
            istore 5 /* i */
        start local 5 // int i
         2: goto 6
         3: .line 33
      StackMap locals: java.util.List int
      StackMap stack:
            aload 0 /* recipientInfos */
            iload 5 /* i */
            invokevirtual org.bouncycastle.asn1.ASN1Set.getObjectAt:(I)Lorg/bouncycastle/asn1/ASN1Encodable;
            invokestatic org.bouncycastle.asn1.cms.RecipientInfo.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/cms/RecipientInfo;
            astore 6 /* info */
        start local 6 // org.bouncycastle.asn1.cms.RecipientInfo info
         4: .line 35
            aload 4 /* infos */
            aload 6 /* info */
            aload 1 /* messageAlgorithm */
            aload 2 /* secureReadable */
            aload 3 /* additionalData */
            invokestatic org.bouncycastle.cms.CMSEnvelopedHelper.readRecipientInfo:(Ljava/util/List;Lorg/bouncycastle/asn1/cms/RecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
        end local 6 // org.bouncycastle.asn1.cms.RecipientInfo info
         5: .line 31
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
         6: iload 5 /* i */
            aload 0 /* recipientInfos */
            invokevirtual org.bouncycastle.asn1.ASN1Set.size:()I
            if_icmpne 3
        end local 5 // int i
         7: .line 37
            new org.bouncycastle.cms.RecipientInformationStore
            dup
            aload 4 /* infos */
            invokespecial org.bouncycastle.cms.RecipientInformationStore.<init>:(Ljava/util/Collection;)V
            areturn
        end local 4 // java.util.List infos
        end local 3 // org.bouncycastle.cms.AuthAttributesProvider additionalData
        end local 2 // org.bouncycastle.cms.CMSSecureReadable secureReadable
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        end local 0 // org.bouncycastle.asn1.ASN1Set recipientInfos
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    8     0    recipientInfos  Lorg/bouncycastle/asn1/ASN1Set;
            0    8     1  messageAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            0    8     2    secureReadable  Lorg/bouncycastle/cms/CMSSecureReadable;
            0    8     3    additionalData  Lorg/bouncycastle/cms/AuthAttributesProvider;
            1    8     4             infos  Ljava/util/List;
            2    7     5                 i  I
            4    5     6              info  Lorg/bouncycastle/asn1/cms/RecipientInfo;
    MethodParameters:
                  Name  Flags
      recipientInfos    
      messageAlgorithm  
      secureReadable    
      additionalData    

  private static void readRecipientInfo(java.util.List, org.bouncycastle.asn1.cms.RecipientInfo, org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.cms.CMSSecureReadable, org.bouncycastle.cms.AuthAttributesProvider);
    descriptor: (Ljava/util/List;Lorg/bouncycastle/asn1/cms/RecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=7, locals=6, args_size=5
        start local 0 // java.util.List infos
        start local 1 // org.bouncycastle.asn1.cms.RecipientInfo info
        start local 2 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        start local 3 // org.bouncycastle.cms.CMSSecureReadable secureReadable
        start local 4 // org.bouncycastle.cms.AuthAttributesProvider additionalData
         0: .line 43
            aload 1 /* info */
            invokevirtual org.bouncycastle.asn1.cms.RecipientInfo.getInfo:()Lorg/bouncycastle/asn1/ASN1Encodable;
            astore 5 /* recipInfo */
        start local 5 // org.bouncycastle.asn1.ASN1Encodable recipInfo
         1: .line 44
            aload 5 /* recipInfo */
            instanceof org.bouncycastle.asn1.cms.KeyTransRecipientInfo
            ifeq 6
         2: .line 46
            aload 0 /* infos */
            new org.bouncycastle.cms.KeyTransRecipientInformation
            dup
         3: .line 47
            aload 5 /* recipInfo */
            checkcast org.bouncycastle.asn1.cms.KeyTransRecipientInfo
            aload 2 /* messageAlgorithm */
            aload 3 /* secureReadable */
            aload 4 /* additionalData */
            invokespecial org.bouncycastle.cms.KeyTransRecipientInformation.<init>:(Lorg/bouncycastle/asn1/cms/KeyTransRecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
         4: .line 46
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
         5: .line 48
            goto 20
         6: .line 49
      StackMap locals: org.bouncycastle.asn1.ASN1Encodable
      StackMap stack:
            aload 5 /* recipInfo */
            instanceof org.bouncycastle.asn1.cms.KEKRecipientInfo
            ifeq 11
         7: .line 51
            aload 0 /* infos */
            new org.bouncycastle.cms.KEKRecipientInformation
            dup
         8: .line 52
            aload 5 /* recipInfo */
            checkcast org.bouncycastle.asn1.cms.KEKRecipientInfo
            aload 2 /* messageAlgorithm */
            aload 3 /* secureReadable */
            aload 4 /* additionalData */
            invokespecial org.bouncycastle.cms.KEKRecipientInformation.<init>:(Lorg/bouncycastle/asn1/cms/KEKRecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
         9: .line 51
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        10: .line 53
            goto 20
        11: .line 54
      StackMap locals:
      StackMap stack:
            aload 5 /* recipInfo */
            instanceof org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo
            ifeq 16
        12: .line 56
            aload 0 /* infos */
        13: .line 57
            aload 5 /* recipInfo */
            checkcast org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo
            aload 2 /* messageAlgorithm */
            aload 3 /* secureReadable */
            aload 4 /* additionalData */
        14: .line 56
            invokestatic org.bouncycastle.cms.KeyAgreeRecipientInformation.readRecipientInfo:(Ljava/util/List;Lorg/bouncycastle/asn1/cms/KeyAgreeRecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
        15: .line 58
            goto 20
        16: .line 59
      StackMap locals:
      StackMap stack:
            aload 5 /* recipInfo */
            instanceof org.bouncycastle.asn1.cms.PasswordRecipientInfo
            ifeq 20
        17: .line 61
            aload 0 /* infos */
            new org.bouncycastle.cms.PasswordRecipientInformation
            dup
        18: .line 62
            aload 5 /* recipInfo */
            checkcast org.bouncycastle.asn1.cms.PasswordRecipientInfo
            aload 2 /* messageAlgorithm */
            aload 3 /* secureReadable */
            aload 4 /* additionalData */
            invokespecial org.bouncycastle.cms.PasswordRecipientInformation.<init>:(Lorg/bouncycastle/asn1/cms/PasswordRecipientInfo;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/cms/CMSSecureReadable;Lorg/bouncycastle/cms/AuthAttributesProvider;)V
        19: .line 61
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        20: .line 64
      StackMap locals:
      StackMap stack:
            return
        end local 5 // org.bouncycastle.asn1.ASN1Encodable recipInfo
        end local 4 // org.bouncycastle.cms.AuthAttributesProvider additionalData
        end local 3 // org.bouncycastle.cms.CMSSecureReadable secureReadable
        end local 2 // org.bouncycastle.asn1.x509.AlgorithmIdentifier messageAlgorithm
        end local 1 // org.bouncycastle.asn1.cms.RecipientInfo info
        end local 0 // java.util.List infos
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0   21     0             infos  Ljava/util/List;
            0   21     1              info  Lorg/bouncycastle/asn1/cms/RecipientInfo;
            0   21     2  messageAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            0   21     3    secureReadable  Lorg/bouncycastle/cms/CMSSecureReadable;
            0   21     4    additionalData  Lorg/bouncycastle/cms/AuthAttributesProvider;
            1   21     5         recipInfo  Lorg/bouncycastle/asn1/ASN1Encodable;
    MethodParameters:
                  Name  Flags
      infos             
      info              
      messageAlgorithm  
      secureReadable    
      additionalData    
}
SourceFile: "CMSEnvelopedHelper.java"
NestMembers:
  org.bouncycastle.cms.CMSEnvelopedHelper$CMSAuthenticatedSecureReadable  org.bouncycastle.cms.CMSEnvelopedHelper$CMSDigestAuthenticatedSecureReadable  org.bouncycastle.cms.CMSEnvelopedHelper$CMSDigestAuthenticatedSecureReadable$1  org.bouncycastle.cms.CMSEnvelopedHelper$CMSEnvelopedSecureReadable
InnerClasses:
  CMSAuthenticatedSecureReadable = org.bouncycastle.cms.CMSEnvelopedHelper$CMSAuthenticatedSecureReadable of org.bouncycastle.cms.CMSEnvelopedHelper
  CMSDigestAuthenticatedSecureReadable = org.bouncycastle.cms.CMSEnvelopedHelper$CMSDigestAuthenticatedSecureReadable of org.bouncycastle.cms.CMSEnvelopedHelper
  CMSEnvelopedSecureReadable = org.bouncycastle.cms.CMSEnvelopedHelper$CMSEnvelopedSecureReadable of org.bouncycastle.cms.CMSEnvelopedHelper