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Diffstat (limited to 'www')
-rw-r--r-- | www/keygenIE.js | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/www/keygenIE.js b/www/keygenIE.js new file mode 100644 index 0000000..be2d184 --- /dev/null +++ b/www/keygenIE.js @@ -0,0 +1,609 @@ +/* +LibreSSL - CAcert web application +Copyright (C) 2004-2012 CAcert Inc. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; version 2 of the License. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +var CAcert_keygen_IE = function () { + + /// Makes a new DOM text node + var textnode = function (text) { + return document.createTextNode(text); + } + + /// makes a new <p> element + var paragraph = function (text) { + var paragraph = document.createElement("p"); + paragraph.appendChild(textnode(text)); + return paragraph; + } + + /// makes a new <pre> elemtent + var pre = function (text) { + var pre = document.createElement("pre"); + pre.appendChild(textnode(text)); + return pre; + } + + /// makes a new <option> element + var option = function (text, value) { + var option = document.createElement("option"); + if (value !== undefined) { + option.setAttribute("value", value); + } + option.appendChild(textnode(text)); + return option; + } + + /// Removes all child nodes from the element + var removeChildren = function (element) { + element.innerHTML = ""; + } + + /// Show error message to user from exception + var showError = function (message, exception) { + window.alert( + message + + "\n\nError: " + exception.message + + " (0x" + (0xFFFFFFFF + exception.number + 1).toString(16) + + " / " + exception.number + ")" + ); + } + + // Get important elements from the DOM + var form = document.getElementById("CertReqForm"); + var securityLevel = document.getElementById("SecurityLevel"); + var customSettings = document.getElementById("customSettings"); + var provider = document.getElementById("CspProvider"); + var algorithm = document.getElementById("algorithm"); + var algorithmParagraph = document.getElementById("algorithmParagraph"); + var keySize = document.getElementById("keySize"); + var keySizeMin = document.getElementById("keySizeMin"); + var keySizeMax = document.getElementById("keySizeMax"); + var keySizeStep = document.getElementById("keySizeStep"); + var genReq = document.getElementById("GenReq"); + var csr = document.getElementById("CSR"); + var noActiveX = document.getElementById("noActiveX"); + var generatingKeyNotice = document.getElementById("generatingKeyNotice"); + var createRequestErrorChooseAlgorithm = document.getElementById("createRequestErrorChooseAlgorithm"); + var createRequestErrorConfirmDialogue = document.getElementById("createRequestErrorConfirmDialogue"); + var createRequestErrorConnectDevice = document.getElementById("createRequestErrorConnectDevice"); + var createRequestError = document.getElementById("createRequestError"); + var invalidKeySizeError = document.getElementById("invalidKeySizeError"); + var unsupportedPlatformError = document.getElementById("unsupportedPlatformError"); + + /// Initialise the CertEnroll code (Vista and higher) + /// returns false if initialisation fails + var initCertEnroll = function () { + var factory = null; + var providerList = null; + var cspStats = null; + + // Try to initialise the ActiveX element. Requires permissions by the user + try { + factory = new ActiveXObject("X509Enrollment.CX509EnrollmentWebClassFactory"); + if (!factory) { + throw { + name: "NoObjectError", + message: "Got null at object creation" + }; + } + + // also try to create a useless object here so the library gets + // initialised and we don't need to check everytime later + factory.CreateObject("X509Enrollment.CObjectId"); + + form.style.display = ""; + noActiveX.style.display = "none"; + } catch (e) { + return false; + } + + /// Get the selected provider + var getProvider = function () { + var providerIndex = provider.options[provider.selectedIndex].value; + return providerList.ItemByIndex(providerIndex); + } + + /// Get the selected algorithm + var getAlgorithm = function () { + var algorithmIndex = algorithm.options[algorithm.selectedIndex].value; + return alg = cspStats.ItemByIndex(algorithmIndex).CspAlgorithm; + } + + /// Get the selected key size + var getKeySize = function () { + var alg = getAlgorithm(); + + var bits = parseInt(keySize.value, 10); + if ( + (bits < alg.MinLength) || + (bits > alg.MaxLength) || + ( + alg.IncrementLength && + ((bits - alg.MinLength) % alg.IncrementLength !== 0) + ) + ) { + return false; + } + + return bits; + } + + /// Fill the key size list + var getKeySizeList = function () { + if (!cspStats) { + return false; + } + + var alg = getAlgorithm(); + + // HTML5 attributes + keySize.setAttribute("min", alg.MinLength); + keySize.setAttribute("max", alg.MaxLength); + keySize.setAttribute("step", alg.IncrementLength); + keySize.setAttribute("value", alg.DefaultLength); + keySize.value = ""+alg.DefaultLength; + + // ugly, but buggy otherwise if done with text nodes + keySizeMin.innerHTML = alg.MinLength; + keySizeMax.innerHTML = alg.MaxLength; + keySizeStep.innerHTML = alg.IncrementLength; + + return true; + } + + /// Fill the algorithm list + var getAlgorithmList = function () { + var i; + + if (!providerList) { + return false; + } + + var csp = getProvider(); + + cspStats = providerList.GetCspStatusesFromOperations( + 0x1c, //XCN_NCRYPT_ANY_ASYMMETRIC_OPERATION + //0x10, //XCN_NCRYPT_SIGNATURE_OPERATION + //0x8, //XCN_NCRYPT_SECRET_AGREEMENT_OPERATION + //0x4, //XCN_NCRYPT_ASYMMETRIC_ENCRYPTION_OPERATION + csp + ); + + removeChildren(algorithm); + for (i = 0; i < cspStats.Count; i++) { + var alg = cspStats.ItemByIndex(i).CspAlgorithm; + algorithm.appendChild(option(alg.Name, i)); + } + + return getKeySizeList(); + } + + /// Fill the crypto provider list + var getProviderList = function () { + var i; + + var csps = factory.CreateObject("X509Enrollment.CCspInformations"); + + // Get provider information + csps.AddAvailableCsps(); + + removeChildren(provider); + + for (i = 0; i < csps.Count; i++) { + var csp = csps.ItemByIndex(i); + provider.appendChild(option(csp.Name, i)); + } + + providerList = csps; + + return getAlgorithmList(); + } + + /// Generate a key and create and submit the actual CSR + var createCSR = function () { + var providerName, algorithmOid, bits; + + var level = securityLevel.options[securityLevel.selectedIndex]; + if (level.value === "custom") { + providerName = getProvider().Name; + var alg = getAlgorithm(); + algorithmOid = alg.GetAlgorithmOid(0, 0) + bits = getKeySize(); + if (!bits) { + window.alert(invalidKeySizeError.innerHTML); + return false; + } + } else { + providerName = "Microsoft Software Key Storage Provider"; + + algorithmOid = factory.CreateObject("X509Enrollment.CObjectId"); + algorithmOid.InitializeFromValue("1.2.840.113549.1.1.1"); // RSA + // "1.2.840.10040.4.1" == DSA + // "1.2.840.10046.2.1" == DH + + if (level.value === "high") { + bits = 4096; + } else { // medium + bits = 2048; + } + } + + var privateKey = factory.CreateObject("X509Enrollment.CX509PrivateKey"); + privateKey.ProviderName = providerName; + privateKey.Algorithm = algorithmOid; + privateKey.Length = bits; + privateKey.KeyUsage = 0xffffff; // XCN_NCRYPT_ALLOW_ALL_USAGES + + var request = factory.CreateObject("X509Enrollment.CX509CertificateRequestPkcs10"); + request.InitializeFromPrivateKey( + 1, // ContextUser + privateKey, + "" // don't use a template + ); + + var enroll = factory.CreateObject("X509Enrollment.CX509Enrollment"); + enroll.InitializeFromRequest(request); + + generatingKeyNotice.style.display = ""; + + // The request needs to be created after we return so the "please wait" + // message gets rendered + var createCSRHandler = function () { + try { + csr.value = enroll.CreateRequest(0x1); //XCN_CRYPT_STRING_BASE64 + form.submit(); + } catch (e) { + showError(createRequestErrorChooseAlgorithm.innerHTML, e); + } + + generatingKeyNotice.style.display = "none"; + } + + window.setTimeout(createCSRHandler, 0); + + // Always return false, form is submitted by deferred method + return false; + } + + /// Call if securityLevel has changed + var refreshSecurityLevel = function () { + var level = securityLevel.options[securityLevel.selectedIndex]; + if (level.value === "custom") { + getProviderList(); + customSettings.style.display = ""; + } else { + customSettings.style.display = "none"; + } + } + + securityLevel.onchange = refreshSecurityLevel; + provider.onchange = getAlgorithmList; + algorithm.onchange = getKeySizeList; + genReq.onclick = createCSR; + + return true; + } // end of initCertEnroll() + + /// Initialise Xenroll code (XP and lower) + /// returns false if initialisation fails + var initXEnroll = function () { + cenroll = null; + + providerTypes = Array( + 1, //PROV_RSA_FULL + 2, //PROV_RSA_SIG + 3, //PROV_DSS + 4, //PROV_FORTEZZA + 5, //PROV_MS_EXCHANGE + 6, //PROV_SSL + 12, //PROV_RSA_SCHANNEL + 13, //PROV_DSS_DH + 14, //PROV_EC_ECDSA_SIG + 15, //PROV_EC_ECNRA_SIG + 16, //PROV_EC_ECDSA_FULL + 17, //PROV_EC_ECNRA_FULL + 18, //PROV_DH_SCHANNEL + 20, //PROV_SPYRUS_LYNKS + 21, //PROV_RNG + 22, //PROV_INTEL_SEC + 23, //PROV_REPLACE_OWF + 24 //PROV_RSA_AES + ); + + algClasses = Array( + 1 << 13, //ALG_CLASS_SIGNATURE + //2 << 13, //ALG_CLASS_MSG_ENCRYPT + //3 << 13, //ALG_CLASS_DATA_ENCRYPT + //4 << 13, //ALG_CLASS_HASH + 5 << 13 //ALG_CLASS_KEY_EXCHANGE + ); + + // Try to initialise the ActiveX element. + try { + cenroll = new ActiveXObject("CEnroll.CEnroll"); + + if (!cenroll) { + throw { + name: "NoObjectError", + message: "Got null at object creation" + }; + } + + form.style.display = ""; + algorithm.disabled = true; + noActiveX.style.display = "none"; + } catch (e) { + return false; + } + + /// Get the name of the selected provider + var getProviderName = function () { + return provider.options[provider.selectedIndex].text; + } + + /// Get the type of the selected provider + var getProviderType = function () { + return parseInt(provider.options[provider.selectedIndex].value, 10); + } + + var refreshProvider = function () { + cenroll.ProviderName = getProviderName(); + cenroll.ProviderType = getProviderType(); + } + + /// Get the ID of the selected algorithm + var getAlgorithmId = function () { + return parseInt(algorithm.options[algorithm.selectedIndex].value, 10); + } + + /// Minimum bit length for exchange keys + var getMinExKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLen(true, true); + } catch (e) { + return false; + } + } + + /// Maximum bit length for exchange keys + var getMaxExKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLen(false, true); + } catch (e) { + return false; + } + } + + /// Step size for exchange keys + /// This might not be available on older platforms + var getStepExKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLenEx(3, 1); + } catch (e) { + return false; + } + } + + /// Minimum bit length for signature keys + var getMinSigKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLen(true, false); + } catch (e) { + return false; + } + } + + /// Maximum bit length for signature keys + var getMaxSigKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLen(false, false); + } catch (e) { + return false; + } + } + + /// Step size for signature keys + /// This might not be available on older platforms + var getStepSigKeyLength = function () { + refreshProvider(); + + try { + return cenroll.GetKeyLenEx(3, 2); + } catch (e) { + return false; + } + } + + /// Get the selected key size + var getKeySize = function () { + var bits = parseInt(keySize.value, 10); + if ( + (bits < getMinSigKeyLength()) || + (bits > getMaxSigKeyLength()) || + ( + getStepSigKeyLength() && + ((bits - getMinSigKeyLength()) % getStepSigKeyLength() !== 0) + ) + ) { + return false; + } + + return bits; + } + + var getKeySizeLimits = function () { + // HTML5 attributes + keySize.setAttribute("min", getMinSigKeyLength()); + keySize.setAttribute("max", getMaxSigKeyLength()); + if (getStepSigKeyLength()) { + keySize.setAttribute("step", getStepSigKeyLength()); + } + + // ugly, but buggy otherwise if done with text nodes + keySizeMin.innerHTML = getMinSigKeyLength(); + keySizeMax.innerHTML = getMaxSigKeyLength(); + keySizeStep.innerHTML = getStepSigKeyLength(); + + if (getMinSigKeyLength() === getMaxSigKeyLength()) { + keySize.value = getMaxSigKeyLength(); + } + + return true; + } + + /// Fill the algorithm selection box + var getAlgorithmList = function () { + var i, j; + + refreshProvider(); + + removeChildren(algorithm); + + for (i = 0; i < algClasses.length; ++i) { + for (j = 0; true; ++j) { + try { + var algId = cenroll.EnumAlgs(j, algClasses[i]); + var algName = cenroll.GetAlgName(algId); + algorithm.appendChild(option(algName, algId)); + } catch (e) { + break; + } + } + } + + getKeySizeLimits(); + } + + /// Fill the provider selection box + var getProviderList = function () { + var i, j; + + removeChildren(provider); + + for (i = 0; i < providerTypes.length; ++i) { + cenroll.providerType = providerTypes[i]; + + var providerName = "invalid"; + for (j = 0; true; ++j) { + try { + providerName = cenroll.enumProviders(j, 0); + provider.appendChild(option(providerName, providerTypes[i])); + } catch (e) { + break; + } + } + } + + return getAlgorithmList(); + } + + var createCSR = function () { + var providerName, bits; + + var level = securityLevel.options[securityLevel.selectedIndex]; + if (level.value === "custom") { + refreshProvider(); + + bits = getKeySize(); + if (bits === false) { + window.alert(invalidKeySizeError.innerHTML); + return false; + } + } else { + cenroll.ProviderName = "Microsoft Enhanced Cryptographic Provider v1.0"; + cenroll.ProviderType = 1; //PROV_RSA_FULL + + if (level.value === "high") { + bits = 4096; + } else { // medium + bits = 2048; + } + } + + cenroll.GenKeyFlags = bits << 16; // keysize is encoded in the uper 16 bits + //cenroll.GenKeyFlags = cenroll.GenKeyFlags | 0x1; //CRYPT_EXPORTABLE + + generatingKeyNotice.style.display = ""; + + // The request needs to be created after we return so the "please wait" + // message gets rendered + var createCSRHandler = function () { + try { + csr.value = cenroll.createPKCS10("", "1.3.6.1.5.5.7.3.2"); + form.submit(); + } catch (e) { + if (e.number === -2147023673) { + // 0x800704c7 => dialogue declined + showError(createRequestErrorConfirmDialogue.innerHTML, e); + } else if (e.number === -2146435043) { + // 0x8010001d => crypto-device not connected + showError(createRequestErrorConnectDevice.innerHTML, e); + } else { + showError(createRequestError.innerHTML, e); + } + } + + generatingKeyNotice.style.display = "none"; + cenroll.Reset(); + } + + window.setTimeout(createCSRHandler, 0); + + // Always return false, form is submitted by deferred method + return false; + } + + /// Call if securityLevel has changed + var refreshSecurityLevel = function () { + var level = securityLevel.options[securityLevel.selectedIndex]; + if (level.value === "custom") { + getProviderList(); + customSettings.style.display = ""; + } else { + customSettings.style.display = "none"; + } + } + + securityLevel.onchange = refreshSecurityLevel; + provider.onchange = getAlgorithmList; + algorithm.onchange = getKeySizeLimits; + genReq.onclick = createCSR; + + return true; + }; + + // Run the init functions until one is successful + if (initCertEnroll()) { + form.style.display = ""; + noActiveX.style.display = "none"; + } else if (initXEnroll()) { + form.style.display = ""; + noActiveX.style.display = "none"; + } else { + window.alert(unsupportedPlatformError.innerHTML); + } +} (); |