Re: problems with making Encrypted mail using SFL

["wooce" <wooce@xxxxxxxx>]

hi,  

here is my program now:

 CSM_AppLogin AppLogin;

 CSM_AlgLst *ppdigestAlgID = new CSM_AlgLst();
 CSM_AlgLst *ppdigestEncryptionAlgID = new CSM_AlgLst();
 CSM_AlgLst *ppkeyEncryptionAlgID = new CSM_AlgLst();
 CSM_AlgLst *ppcontentEncryptionAlgID = new CSM_AlgLst();
 char *dllname="libsm_free3DLL";
 char *args="sm_free3DLL ./21cn.pfx 123456";

 AppLogin.AddLogin(dllname,args);        // call AddLogin() function
 CSM_CSInst *pInst;
 CSM_OID contentEOID(rc2_cbc);  //   OID  is 1.2.840.113549.3.2

 

//  testing process begin here....

 CSM_Alg rc2Alg(contentEOID);
 pInst = AppLogin.FindCSInstAlgIds(NULL,NULL,NULL,&rc2Alg);
 if( pInst==NULL)
  cout<<"no rc2 algorithm found!";
 else
  cout<<"find rc2 algorithm instance!";

  pInst->GetAlgIDs(ppdigestAlgID,ppdigestEncryptionAlgID,ppkeyEncryptionAlgID,ppcontentEncryptionAlgID);

  CSM_Alg *pAlg=ppcontentEncryptionAlgID->FirstL();
  while( pAlg!=NULL )
  {
   cout<<pAlg->GetId()->GetOIDDescription()<<","<<pAlg->GetId()->GetChar()<<"\n";
   pAlg = ppcontentEncryptionAlgID->GoNext();
  }

//    end of testing process

 

 smEncryptMsg.SetContentEncryptOID(ppcontentEncryptionAlgID->FirstL()->GetId());

 

  but it still report "no instance supports requested cont encr alg",   and the testing process output:

find rc2 algorithm instance!Instance:sha_1,1.3.14.3.2.26
id_dsa,1.2.840.10040.4.1
rsa,2.5.8.1.1
id_aes128_ECB,2.16.840.1.101.3.4.1.1

 

why I got the content encryption oid as  id_aes128_ECB(2.16.840.1.101.3.4.1.1)   instead  of   rc2_cbc(1.2.840.113549.3.2) from the

instance gained by FindCSInstAlgIds(NULL,NULL,NULL,&rc2Alg) ?    it seems  very strange.

How should I  change the program?   I  don't want to change the last statement  to  smEncryptMsg.SetContentEncryptOID(&contentEOID);

I want to use the content encryption algorithm specified in the pfx file "21cn.pfx".

 

  Thank you and have a nice day.

 

Wooce.
----- Original Message -----

From: William Adams

To: 'wooce' ; SFL List (E-mail)

Sent: Wednesday, October 17, 2001 2:28 AM

Subject: RE: problems with making Encrypted mail using SFL

You can use the

 

void CSM_CSInst::GetAlgs(CSM_AlgLst **ppdigestAlgID,CSM_AlgLst **ppdigestEncryptionAlgID,CSM_AlgLst **ppkeyEncryptionAlgID,CSM_AlgLst **ppcontentEncryptionAlgID);

 

function to get the supported algs for each instance.

 

-----Original Message-----
From: owner-imc-sfl@xxxxxxxxxxxx [mailto:owner-imc-sfl@xxxxxxxxxxxx]On Behalf Of wooce
Sent: 17 October 2001 11:16
To: imc-sfl
Subject: problems with making Encrypted mail using SFL

 hi all,

      Sorry for I'm a new comer to SFL and this mailing list.   Please forgive me for asking so  simple problems. 

  I write  a program  to  make enveloped mail  by SFL.     But it reports:

    ERROR INFORMATION AND STACK:

 

 ERROR INFORMATION: no instance supports requested cont encr alg
        ERROR CODE: 1006        SOURCE LINE NUMBER: 1165
        FILE: sm_Encrypt.cpp
        FUNCTION: CSM_DataToEncrypt::Encrypt

 

     now I find that it's probably for I passed the wrong contentEncryptionOID to pEncryptMsg : 

   

    CSM_MsgToEncrypt *pEncryptMsg;

    CSM_OID oidEncryptedData(id_encryptedData);
    pEncryptMsg->SetContentEncryptOID(&contentEncryptionOID);

   1) How should I  get  the    CSM_OID object to pass it to  pEncryptMsg->SetContentEncryptOID()  function?

  2)  How  can I  see   the list of  the Algorithm OIDs supported by the available instances?  

 

sincerely,

Wooce

wooce@xxxxxxxx