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Создание и проверка подписи

HTML
<script language="javascript" src="cadesplugin_api.js"></script>

Приведенный пример использует синхронную версию плагина. Также см. пример работы с асинхронными обьектами.

JavaScript
        var CADESCOM_CADES_X_LONG_TYPE_1 = 0x5d;
        var CAPICOM_CURRENT_USER_STORE = 2;
        var CAPICOM_MY_STORE = "My";
        var CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED = 2;
        var CAPICOM_CERTIFICATE_FIND_SUBJECT_NAME = 1;

        function SignCreate(certSubjectName, dataToSign) {
            var oStore = cadesplugin.CreateObject("CAdESCOM.Store");
            oStore.Open(CAPICOM_CURRENT_USER_STORE, CAPICOM_MY_STORE,
            CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED);

            var oCertificates = oStore.Certificates.Find(
            CAPICOM_CERTIFICATE_FIND_SUBJECT_NAME, certSubjectName);
            if (oCertificates.Count == 0) {
                alert("Certificate not found: " + certSubjectName);
                return;
            }
            var oCertificate = oCertificates.Item(1);
            var oSigner = cadesplugin.CreateObject("CAdESCOM.CPSigner");
            oSigner.Certificate = oCertificate;
            oSigner.TSAAddress = "http://cryptopro.ru/tsp/";

            var oSignedData = cadesplugin.CreateObject("CAdESCOM.CadesSignedData");
            oSignedData.Content = dataToSign;

            try {
                var sSignedMessage = oSignedData.SignCades(oSigner, CADESCOM_CADES_X_LONG_TYPE_1);
            } catch (err) {
                alert("Failed to create signature. Error: " + cadesplugin.getLastError(err));
                return;
            }

            oStore.Close();

            return sSignedMessage;
        }

        function Verify(sSignedMessage) {
            var oSignedData = cadesplugin.CreateObject("CAdESCOM.CadesSignedData");
            try {
                oSignedData.VerifyCades(sSignedMessage, CADESCOM_CADES_X_LONG_TYPE_1);
            } catch (err) {
                alert("Failed to verify signature. Error: " + cadesplugin.getLastError(err));
                return false;
            }

            return true;
        }

        function run() {
            var oCertName = document.getElementById("CertName");
            var sCertName = oCertName.value; // Здесь следует заполнить SubjectName сертификата
            if ("" == sCertName) {
                alert("Введите имя сертификата (CN).");
                return;
            }
            var signedMessage = SignCreate(sCertName, "Message");

            document.getElementById("signature").innerHTML = signedMessage;

            var verifyResult = Verify(signedMessage);
            if (verifyResult) {
                alert("Signature verified");
            }
        }