问关于java生成usersig的问题？

try{			
			//Use pemfile keys to test
			String privStr = "-----BEGIN PRIVATE KEY-----
" +
			"MIGEAgEAMBAGBXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXGoOmM/dUjzoWDGdo7W0
" +
			"UgLOEUboRawcHs2vu59PVMChRANCAASJApILfiKk234jkUJF/fd4CVmTYa+bvFUN
" +
			"YmyLsKTEf5HM6wvOmEig8ukn6SRK+iSfvZaddP391Tunv5kQds38
" +
			"-----END PRIVATE KEY-----";
		 
			//change public pem string to public string
			String pubStr = "-----BEGIN PUBLIC KEY-----
"+
			"MFYwEAYHKoXXXXXXXXXXXXXXXXXXXXXXXXXXXXABFXyFSVJgekqVAugT2pLtYP3c
"+
			"59DZe4iGO1u4NhaADVp6BedXhFG+pXGd4M34IPFRRk6Sa4sB0Fn+Uw==
"+
			"-----END PUBLIC KEY-----";			

   // generate signature
			GenTLSSignatureResult result = GenTLSSignatureEx(1400019205, "yaya", privStr);
   if (0 == result.urlSig.length()) {
    System.out.println("GenTLSSignatureEx failed: " + result.errMessage);
    return;
   }
   
   System.out.println("---
generate sig:
" + result.urlSig + "
---
");
		 	
   // check signature
   CheckTLSSignatureResult checkResult = CheckTLSSignatureEx(result.urlSig, 1400000955, "xiaojun", pubStr);
   if(checkResult.verifyResult == false) {
    System.out.println("CheckTLSSignature failed: " + result.errMessage);
    return;
   }
   
   System.out.println("
---
check sig ok -- expire time " + checkResult.expireTime + " -- init time " + checkResult.initTime + "
---
");
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}