怎样使用capicom控件进行签名

怎样使用capicom控件进行签名

var CAPICOM_CURRENT_USER_STORE = 2  
var CAPICOM_MY_STORE = "My"  
var CAPICOM_STORE_OPEN_READ_ONLY = 0  
var CAPICOM_STORE_OPEN_EXISTING_ONLY = 128  
var CAPICOM_CERTIFICATE_FIND_KEY_USAGE = 12  
var CAPICOM_DIGITAL_SIGNATURE_KEY_USAGE = 128  
var CAPICOM_CERT_INFO_SUBJECT_EMAIL_NAME = 2  
var CAPICOM_HASH_ALGORITHM_SHA1 = 0   
var CAPICOM_VERIFY_SIGNATURE_AND_CERTIFICATE = 1  
var CAPICOM_CERT_INFO_SUBJECT_SIMPLE_NAME = 0  
var CAPICOM_CERT_INFO_ISSUER_SIMPLE_NAME = 1  
var CAPICOM_CERT_INFO_SUBJECT_EMAIL_NAME = 2  
var CAPICOM_CERT_INFO_ISSUER_EMAIL_NAME = 3  
var CAPICOM_ENCODE_BASE64 = 0;  
var CAPICOM_VERIFY_SIGNATURE_ONLY = 0;  

function certLogin()  
{  
    var store = new ActiveXObject("CAPICOM.Store");  
    var oSigner = new ActiveXObject("CAPICOM.Signer");  
    var oSignedData = new ActiveXObject("CAPICOM.SignedData");  

    store.Open(CAPICOM_CURRENT_USER_STORE, CAPICOM_MY_STORE,   
            CAPICOM_STORE_OPEN_READ_ONLY | CAPICOM_STORE_OPEN_EXISTING_ONLY);  
    var certs = store.Certificates.Find(CAPICOM_CERTIFICATE_FIND_KEY_USAGE,   
            CAPICOM_DIGITAL_SIGNATURE_KEY_USAGE, true);  
    certs = certs.Select();//弹出证书选择框  
    var cert = certs (1);  

    oSigner.Certificate = cert;  
    oSignedData.Content = "123456";  

    var signResult = oSignedData.Sign(oSigner, false, CAPICOM_ENCODE_BASE64);  
    return signResult;  
}