使用BouncyCastle进行PKCS7签名

public class SignDemoPKCS7
{
private byte[] contentdata;
private String keystore = "D:/cert/icbxcmp",keystore51="D:/epay/wspki/wsc-01.jks";
private String ks_type = "JKS";
private String pswd = "1qaz2wsx",sqclientpass="lavida";
private String prikeyname="icbccmpapiprivate",sqclientpri="wsc01";
private byte[] SignData(String text)
{
Provider provider = new BouncyCastleProvider();
    Security.addProvider(provider);
PKCS7SignedData pkcs7sd;
contentdata = text.getBytes();
byte signdata[] = (byte[])null;
char passphrase[] = pswd.toCharArray();

KeyStore ks;
try {
ks = KeyStore.getInstance(ks_type);
ks.load(new FileInputStream(keystore), passphrase);

PrivateKey prikey=(PrivateKey)ks.getKey(prikeyname, passphrase);

pkcs7sd = new PKCS7SignedData(prikey,ks.getCertificateChain("icbccmpapiprivate"),"SHA1","BC");
pkcs7sd.update(contentdata, 0, contentdata.length);

signdata = pkcs7sd.getEncoded();

return signdata;
} catch (KeyStoreException e) {
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (CertificateException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (UnrecoverableKeyException e) {
e.printStackTrace();
} catch (SignatureException e) {
e.printStackTrace();
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchProviderException e) {
e.printStackTrace();
}
return null;
}
public byte[] createPKCS7(String text)
{
         byte[] signedData = (byte[])null;
         char passphrase[] = pswd.toCharArray();
         try
         {
        Provider provider = new BouncyCastleProvider();
        Security.addProvider(provider);
    
        KeyStore ks = KeyStore.getInstance(ks_type);
        ks.load(new FileInputStream(keystore), passphrase);
        Certificate cert = (Certificate) ks.getCertificate("icbccmpapipublic");
        PrivateKey prikey=(PrivateKey)ks.getKey(prikeyname, passphrase);
        ArrayList certList = new ArrayList();
        Certificate[] certChain = ks.getCertificateChain("icbccmpapiprivate");
        for ( int i = 0; i < certChain.length;i++)
        {
        certList.add(certChain[i]);
        }
        X509Certificate cerx509 = (X509Certificate)cert;
        CMSProcessable msgcontent = new CMSProcessableByteArray(text.getBytes("GB2312"));
            
        CertStore certs = CertStore.getInstance("Collection",new CollectionCertStoreParameters(certList), "BC");
            
             CMSSignedDataGenerator gen = new CMSSignedDataGenerator();
            
             gen.addSigner(prikey, cerx509,CMSSignedGenerator.DIGEST_SHA1);
             gen.addCertificatesAndCRLs(certs);
             //1,eContentType,版本号;3,detached model; 4,provider ;5, stream
             CMSSignedData signdata =  gen.generate(msgcontent,true,"BC");
             //gen.generate("Y",msgcontent,true,"BC",false);
             signedData = signdata.getContentInfo().getEncoded("DER") ;//数据分割DER
             return signedData;              
//             byte[] op = (byte[])msgcontent.getContent();
//               CMSSignedDataStreamGenerator genstream = new CMSSignedDataStreamGenerator();
//               genstream.addSigner(prikey, cerx509, CMSSignedDataStreamGenerator.DIGEST_SHA1, "BC");
//               genstream.addCertificatesAndCRLs(certs);
//               int buff = 16384;
//               byte[] buffer = new byte[buff];
//               int unitsize = 0;
//               long read = 0;
//              
//               byte [] hong = text.getBytes("GB2312");
//              
//               ByteArrayOutputStream bOut = new ByteArrayOutputStream();
//          
//               OutputStream dataout = genstream.open(bOut,true);
//             
//              
//               dataout.write(hong);
//               dataout.close();
//               byte temp[] = bOut.toByteArray();
//               bOut.close();             
              
         } catch (Exception e) {
               e.printStackTrace();
               return null;
         }
   }

public static char byte2char(byte b)
{
return (char) b;
}
public String plain()
{

//System.out.println(trandate+"--"+trantime+"--"+pid);
String textcontent="signdata";
//System.out.println(textcontent);
return textcontent;
}
public String getBase64()
{
//String x = plain();
String myname = "wanghan";
byte[] temp1 = createPKCS7(myname);
byte[] temp2 = Base64.encode(temp1);
int count =0;
String str = "";
for (int i = 0; i < temp2.length; i++)
{
str= str+byte2char(temp2[i]);
System.out.print(byte2char(temp2[i]));
count++;
if(count%64==0)
{
System.out.println();
}

}
System.out.println("");
System.out.println(str);

return str;
}

public String getdate()
{
return trandate;
}
public String gettime()
{
return trantime;
}
public String getpid()
{
return pid;
}
public SignDemoPKCS7()
{
date = new Date();
SimpleDateFormat simple = new SimpleDateFormat("yyyyMMdd");
SimpleDateFormat t = new SimpleDateFormat("HHmmss");
trandate = simple.format(date.getTime());
trantime = t.format(date.getTime())+"000";
Random i = new Random();
pid = String.valueOf(Math.abs(i.nextInt(1000)));
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); 
}
public Date date;
public String trandate;
public String trantime;
public String pid;
public static void main(String[] args)
{
//new SignDemoPKCS7().plain();

new SignDemoPKCS7().getBase64();
}

}