diff options
author | Minteck <contact@minteck.org> | 2022-10-18 08:59:09 +0200 |
---|---|---|
committer | Minteck <contact@minteck.org> | 2022-10-18 08:59:09 +0200 |
commit | 2c4ae43e688a9873e86211ea0e7aeb9ba770dd77 (patch) | |
tree | 17848d95522dab25d3cdeb9c4a6450e2a234861f /alarm/node_modules/node-forge/js/pkcs12.js | |
parent | 108525534c28013cfe1897c30e4565f9893f3766 (diff) | |
download | pluralconnect-2c4ae43e688a9873e86211ea0e7aeb9ba770dd77.tar.gz pluralconnect-2c4ae43e688a9873e86211ea0e7aeb9ba770dd77.tar.bz2 pluralconnect-2c4ae43e688a9873e86211ea0e7aeb9ba770dd77.zip |
Update
Diffstat (limited to 'alarm/node_modules/node-forge/js/pkcs12.js')
-rw-r--r-- | alarm/node_modules/node-forge/js/pkcs12.js | 1133 |
1 files changed, 1133 insertions, 0 deletions
diff --git a/alarm/node_modules/node-forge/js/pkcs12.js b/alarm/node_modules/node-forge/js/pkcs12.js new file mode 100644 index 0000000..5d4d8af --- /dev/null +++ b/alarm/node_modules/node-forge/js/pkcs12.js @@ -0,0 +1,1133 @@ +/** + * Javascript implementation of PKCS#12. + * + * @author Dave Longley + * @author Stefan Siegl <stesie@brokenpipe.de> + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + * Copyright (c) 2012 Stefan Siegl <stesie@brokenpipe.de> + * + * The ASN.1 representation of PKCS#12 is as follows + * (see ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12-tc1.pdf for details) + * + * PFX ::= SEQUENCE { + * version INTEGER {v3(3)}(v3,...), + * authSafe ContentInfo, + * macData MacData OPTIONAL + * } + * + * MacData ::= SEQUENCE { + * mac DigestInfo, + * macSalt OCTET STRING, + * iterations INTEGER DEFAULT 1 + * } + * Note: The iterations default is for historical reasons and its use is + * deprecated. A higher value, like 1024, is recommended. + * + * DigestInfo is defined in PKCS#7 as follows: + * + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest + * } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * + * The AlgorithmIdentifier contains an Object Identifier (OID) and parameters + * for the algorithm, if any. In the case of SHA1 there is none. + * + * AlgorithmIdentifer ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL + * } + * + * Digest ::= OCTET STRING + * + * + * ContentInfo ::= SEQUENCE { + * contentType ContentType, + * content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL + * } + * + * ContentType ::= OBJECT IDENTIFIER + * + * AuthenticatedSafe ::= SEQUENCE OF ContentInfo + * -- Data if unencrypted + * -- EncryptedData if password-encrypted + * -- EnvelopedData if public key-encrypted + * + * + * SafeContents ::= SEQUENCE OF SafeBag + * + * SafeBag ::= SEQUENCE { + * bagId BAG-TYPE.&id ({PKCS12BagSet}) + * bagValue [0] EXPLICIT BAG-TYPE.&Type({PKCS12BagSet}{@bagId}), + * bagAttributes SET OF PKCS12Attribute OPTIONAL + * } + * + * PKCS12Attribute ::= SEQUENCE { + * attrId ATTRIBUTE.&id ({PKCS12AttrSet}), + * attrValues SET OF ATTRIBUTE.&Type ({PKCS12AttrSet}{@attrId}) + * } -- This type is compatible with the X.500 type ’Attribute’ + * + * PKCS12AttrSet ATTRIBUTE ::= { + * friendlyName | -- from PKCS #9 + * localKeyId, -- from PKCS #9 + * ... -- Other attributes are allowed + * } + * + * CertBag ::= SEQUENCE { + * certId BAG-TYPE.&id ({CertTypes}), + * certValue [0] EXPLICIT BAG-TYPE.&Type ({CertTypes}{@certId}) + * } + * + * x509Certificate BAG-TYPE ::= {OCTET STRING IDENTIFIED BY {certTypes 1}} + * -- DER-encoded X.509 certificate stored in OCTET STRING + * + * sdsiCertificate BAG-TYPE ::= {IA5String IDENTIFIED BY {certTypes 2}} + * -- Base64-encoded SDSI certificate stored in IA5String + * + * CertTypes BAG-TYPE ::= { + * x509Certificate | + * sdsiCertificate, + * ... -- For future extensions + * } + */ +(function() { +/* ########## Begin module implementation ########## */ +function initModule(forge) { + +// shortcut for asn.1 & PKI API +var asn1 = forge.asn1; +var pki = forge.pki; + +// shortcut for PKCS#12 API +var p12 = forge.pkcs12 = forge.pkcs12 || {}; + +var contentInfoValidator = { + name: 'ContentInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // a ContentInfo + constructed: true, + value: [{ + name: 'ContentInfo.contentType', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'contentType' + }, { + name: 'ContentInfo.content', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + captureAsn1: 'content' + }] +}; + +var pfxValidator = { + name: 'PFX', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PFX.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }, + contentInfoValidator, { + name: 'PFX.macData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + captureAsn1: 'mac', + value: [{ + name: 'PFX.macData.mac', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // DigestInfo + constructed: true, + value: [{ + name: 'PFX.macData.mac.digestAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // DigestAlgorithmIdentifier + constructed: true, + value: [{ + name: 'PFX.macData.mac.digestAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'macAlgorithm' + }, { + name: 'PFX.macData.mac.digestAlgorithm.parameters', + tagClass: asn1.Class.UNIVERSAL, + captureAsn1: 'macAlgorithmParameters' + }] + }, { + name: 'PFX.macData.mac.digest', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'macDigest' + }] + }, { + name: 'PFX.macData.macSalt', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'macSalt' + }, { + name: 'PFX.macData.iterations', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + optional: true, + capture: 'macIterations' + }] + }] +}; + +var safeBagValidator = { + name: 'SafeBag', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SafeBag.bagId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'bagId' + }, { + name: 'SafeBag.bagValue', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + captureAsn1: 'bagValue' + }, { + name: 'SafeBag.bagAttributes', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + optional: true, + capture: 'bagAttributes' + }] +}; + +var attributeValidator = { + name: 'Attribute', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'Attribute.attrId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'oid' + }, { + name: 'Attribute.attrValues', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + capture: 'values' + }] +}; + +var certBagValidator = { + name: 'CertBag', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'CertBag.certId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'certId' + }, { + name: 'CertBag.certValue', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + /* So far we only support X.509 certificates (which are wrapped in + an OCTET STRING, hence hard code that here). */ + value: [{ + name: 'CertBag.certValue[0]', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.OCTETSTRING, + constructed: false, + capture: 'cert' + }] + }] +}; + +/** + * Search SafeContents structure for bags with matching attributes. + * + * The search can optionally be narrowed by a certain bag type. + * + * @param safeContents the SafeContents structure to search in. + * @param attrName the name of the attribute to compare against. + * @param attrValue the attribute value to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of matching bags. + */ +function _getBagsByAttribute(safeContents, attrName, attrValue, bagType) { + var result = []; + + for(var i = 0; i < safeContents.length; i ++) { + for(var j = 0; j < safeContents[i].safeBags.length; j ++) { + var bag = safeContents[i].safeBags[j]; + if(bagType !== undefined && bag.type !== bagType) { + continue; + } + // only filter by bag type, no attribute specified + if(attrName === null) { + result.push(bag); + continue; + } + if(bag.attributes[attrName] !== undefined && + bag.attributes[attrName].indexOf(attrValue) >= 0) { + result.push(bag); + } + } + } + + return result; +} + +/** + * Converts a PKCS#12 PFX in ASN.1 notation into a PFX object. + * + * @param obj The PKCS#12 PFX in ASN.1 notation. + * @param strict true to use strict DER decoding, false not to (default: true). + * @param {String} password Password to decrypt with (optional). + * + * @return PKCS#12 PFX object. + */ +p12.pkcs12FromAsn1 = function(obj, strict, password) { + // handle args + if(typeof strict === 'string') { + password = strict; + strict = true; + } else if(strict === undefined) { + strict = true; + } + + // validate PFX and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, pfxValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 PFX. ' + + 'ASN.1 object is not an PKCS#12 PFX.'); + error.errors = error; + throw error; + } + + var pfx = { + version: capture.version.charCodeAt(0), + safeContents: [], + + /** + * Gets bags with matching attributes. + * + * @param filter the attributes to filter by: + * [localKeyId] the localKeyId to search for. + * [localKeyIdHex] the localKeyId in hex to search for. + * [friendlyName] the friendly name to search for. + * [bagType] bag type to narrow each attribute search by. + * + * @return a map of attribute type to an array of matching bags or, if no + * attribute was given but a bag type, the map key will be the + * bag type. + */ + getBags: function(filter) { + var rval = {}; + + var localKeyId; + if('localKeyId' in filter) { + localKeyId = filter.localKeyId; + } else if('localKeyIdHex' in filter) { + localKeyId = forge.util.hexToBytes(filter.localKeyIdHex); + } + + // filter on bagType only + if(localKeyId === undefined && !('friendlyName' in filter) && + 'bagType' in filter) { + rval[filter.bagType] = _getBagsByAttribute( + pfx.safeContents, null, null, filter.bagType); + } + + if(localKeyId !== undefined) { + rval.localKeyId = _getBagsByAttribute( + pfx.safeContents, 'localKeyId', + localKeyId, filter.bagType); + } + if('friendlyName' in filter) { + rval.friendlyName = _getBagsByAttribute( + pfx.safeContents, 'friendlyName', + filter.friendlyName, filter.bagType); + } + + return rval; + }, + + /** + * DEPRECATED: use getBags() instead. + * + * Get bags with matching friendlyName attribute. + * + * @param friendlyName the friendly name to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of bags with matching friendlyName attribute. + */ + getBagsByFriendlyName: function(friendlyName, bagType) { + return _getBagsByAttribute( + pfx.safeContents, 'friendlyName', friendlyName, bagType); + }, + + /** + * DEPRECATED: use getBags() instead. + * + * Get bags with matching localKeyId attribute. + * + * @param localKeyId the localKeyId to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of bags with matching localKeyId attribute. + */ + getBagsByLocalKeyId: function(localKeyId, bagType) { + return _getBagsByAttribute( + pfx.safeContents, 'localKeyId', localKeyId, bagType); + } + }; + + if(capture.version.charCodeAt(0) !== 3) { + var error = new Error('PKCS#12 PFX of version other than 3 not supported.'); + error.version = capture.version.charCodeAt(0); + throw error; + } + + if(asn1.derToOid(capture.contentType) !== pki.oids.data) { + var error = new Error('Only PKCS#12 PFX in password integrity mode supported.'); + error.oid = asn1.derToOid(capture.contentType); + throw error; + } + + var data = capture.content.value[0]; + if(data.tagClass !== asn1.Class.UNIVERSAL || + data.type !== asn1.Type.OCTETSTRING) { + throw new Error('PKCS#12 authSafe content data is not an OCTET STRING.'); + } + data = _decodePkcs7Data(data); + + // check for MAC + if(capture.mac) { + var md = null; + var macKeyBytes = 0; + var macAlgorithm = asn1.derToOid(capture.macAlgorithm); + switch(macAlgorithm) { + case pki.oids.sha1: + md = forge.md.sha1.create(); + macKeyBytes = 20; + break; + case pki.oids.sha256: + md = forge.md.sha256.create(); + macKeyBytes = 32; + break; + case pki.oids.sha384: + md = forge.md.sha384.create(); + macKeyBytes = 48; + break; + case pki.oids.sha512: + md = forge.md.sha512.create(); + macKeyBytes = 64; + break; + case pki.oids.md5: + md = forge.md.md5.create(); + macKeyBytes = 16; + break; + } + if(md === null) { + throw new Error('PKCS#12 uses unsupported MAC algorithm: ' + macAlgorithm); + } + + // verify MAC (iterations default to 1) + var macSalt = new forge.util.ByteBuffer(capture.macSalt); + var macIterations = (('macIterations' in capture) ? + parseInt(forge.util.bytesToHex(capture.macIterations), 16) : 1); + var macKey = p12.generateKey( + password, macSalt, 3, macIterations, macKeyBytes, md); + var mac = forge.hmac.create(); + mac.start(md, macKey); + mac.update(data.value); + var macValue = mac.getMac(); + if(macValue.getBytes() !== capture.macDigest) { + throw new Error('PKCS#12 MAC could not be verified. Invalid password?'); + } + } + + _decodeAuthenticatedSafe(pfx, data.value, strict, password); + return pfx; +}; + +/** + * Decodes PKCS#7 Data. PKCS#7 (RFC 2315) defines "Data" as an OCTET STRING, + * but it is sometimes an OCTET STRING that is composed/constructed of chunks, + * each its own OCTET STRING. This is BER-encoding vs. DER-encoding. This + * function transforms this corner-case into the usual simple, + * non-composed/constructed OCTET STRING. + * + * This function may be moved to ASN.1 at some point to better deal with + * more BER-encoding issues, should they arise. + * + * @param data the ASN.1 Data object to transform. + */ +function _decodePkcs7Data(data) { + // handle special case of "chunked" data content: an octet string composed + // of other octet strings + if(data.composed || data.constructed) { + var value = forge.util.createBuffer(); + for(var i = 0; i < data.value.length; ++i) { + value.putBytes(data.value[i].value); + } + data.composed = data.constructed = false; + data.value = value.getBytes(); + } + return data; +} + +/** + * Decode PKCS#12 AuthenticatedSafe (BER encoded) into PFX object. + * + * The AuthenticatedSafe is a BER-encoded SEQUENCE OF ContentInfo. + * + * @param pfx The PKCS#12 PFX object to fill. + * @param {String} authSafe BER-encoded AuthenticatedSafe. + * @param strict true to use strict DER decoding, false not to. + * @param {String} password Password to decrypt with (optional). + */ +function _decodeAuthenticatedSafe(pfx, authSafe, strict, password) { + authSafe = asn1.fromDer(authSafe, strict); /* actually it's BER encoded */ + + if(authSafe.tagClass !== asn1.Class.UNIVERSAL || + authSafe.type !== asn1.Type.SEQUENCE || + authSafe.constructed !== true) { + throw new Error('PKCS#12 AuthenticatedSafe expected to be a ' + + 'SEQUENCE OF ContentInfo'); + } + + for(var i = 0; i < authSafe.value.length; i ++) { + var contentInfo = authSafe.value[i]; + + // validate contentInfo and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(contentInfo, contentInfoValidator, capture, errors)) { + var error = new Error('Cannot read ContentInfo.'); + error.errors = errors; + throw error; + } + + var obj = { + encrypted: false + }; + var safeContents = null; + var data = capture.content.value[0]; + switch(asn1.derToOid(capture.contentType)) { + case pki.oids.data: + if(data.tagClass !== asn1.Class.UNIVERSAL || + data.type !== asn1.Type.OCTETSTRING) { + throw new Error('PKCS#12 SafeContents Data is not an OCTET STRING.'); + } + safeContents = _decodePkcs7Data(data).value; + break; + case pki.oids.encryptedData: + safeContents = _decryptSafeContents(data, password); + obj.encrypted = true; + break; + default: + var error = new Error('Unsupported PKCS#12 contentType.'); + error.contentType = asn1.derToOid(capture.contentType); + throw error; + } + + obj.safeBags = _decodeSafeContents(safeContents, strict, password); + pfx.safeContents.push(obj); + } +} + +/** + * Decrypt PKCS#7 EncryptedData structure. + * + * @param data ASN.1 encoded EncryptedContentInfo object. + * @param password The user-provided password. + * + * @return The decrypted SafeContents (ASN.1 object). + */ +function _decryptSafeContents(data, password) { + var capture = {}; + var errors = []; + if(!asn1.validate( + data, forge.pkcs7.asn1.encryptedDataValidator, capture, errors)) { + var error = new Error('Cannot read EncryptedContentInfo.'); + error.errors = errors; + throw error; + } + + var oid = asn1.derToOid(capture.contentType); + if(oid !== pki.oids.data) { + var error = new Error( + 'PKCS#12 EncryptedContentInfo ContentType is not Data.'); + error.oid = oid; + throw error; + } + + // get cipher + oid = asn1.derToOid(capture.encAlgorithm); + var cipher = pki.pbe.getCipher(oid, capture.encParameter, password); + + // get encrypted data + var encryptedContentAsn1 = _decodePkcs7Data(capture.encryptedContentAsn1); + var encrypted = forge.util.createBuffer(encryptedContentAsn1.value); + + cipher.update(encrypted); + if(!cipher.finish()) { + throw new Error('Failed to decrypt PKCS#12 SafeContents.'); + } + + return cipher.output.getBytes(); +} + +/** + * Decode PKCS#12 SafeContents (BER-encoded) into array of Bag objects. + * + * The safeContents is a BER-encoded SEQUENCE OF SafeBag. + * + * @param {String} safeContents BER-encoded safeContents. + * @param strict true to use strict DER decoding, false not to. + * @param {String} password Password to decrypt with (optional). + * + * @return {Array} Array of Bag objects. + */ +function _decodeSafeContents(safeContents, strict, password) { + // if strict and no safe contents, return empty safes + if(!strict && safeContents.length === 0) { + return []; + } + + // actually it's BER-encoded + safeContents = asn1.fromDer(safeContents, strict); + + if(safeContents.tagClass !== asn1.Class.UNIVERSAL || + safeContents.type !== asn1.Type.SEQUENCE || + safeContents.constructed !== true) { + throw new Error( + 'PKCS#12 SafeContents expected to be a SEQUENCE OF SafeBag.'); + } + + var res = []; + for(var i = 0; i < safeContents.value.length; i++) { + var safeBag = safeContents.value[i]; + + // validate SafeBag and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(safeBag, safeBagValidator, capture, errors)) { + var error = new Error('Cannot read SafeBag.'); + error.errors = errors; + throw error; + } + + /* Create bag object and push to result array. */ + var bag = { + type: asn1.derToOid(capture.bagId), + attributes: _decodeBagAttributes(capture.bagAttributes) + }; + res.push(bag); + + var validator, decoder; + var bagAsn1 = capture.bagValue.value[0]; + switch(bag.type) { + case pki.oids.pkcs8ShroudedKeyBag: + /* bagAsn1 has a EncryptedPrivateKeyInfo, which we need to decrypt. + Afterwards we can handle it like a keyBag, + which is a PrivateKeyInfo. */ + bagAsn1 = pki.decryptPrivateKeyInfo(bagAsn1, password); + if(bagAsn1 === null) { + throw new Error( + 'Unable to decrypt PKCS#8 ShroudedKeyBag, wrong password?'); + } + + /* fall through */ + case pki.oids.keyBag: + /* A PKCS#12 keyBag is a simple PrivateKeyInfo as understood by our + PKI module, hence we don't have to do validation/capturing here, + just pass what we already got. */ + try { + bag.key = pki.privateKeyFromAsn1(bagAsn1); + } catch(e) { + // ignore unknown key type, pass asn1 value + bag.key = null; + bag.asn1 = bagAsn1; + } + continue; /* Nothing more to do. */ + + case pki.oids.certBag: + /* A PKCS#12 certBag can wrap both X.509 and sdsi certificates. + Therefore put the SafeBag content through another validator to + capture the fields. Afterwards check & store the results. */ + validator = certBagValidator; + decoder = function() { + if(asn1.derToOid(capture.certId) !== pki.oids.x509Certificate) { + var error = new Error( + 'Unsupported certificate type, only X.509 supported.'); + error.oid = asn1.derToOid(capture.certId); + throw error; + } + + // true=produce cert hash + var certAsn1 = asn1.fromDer(capture.cert, strict); + try { + bag.cert = pki.certificateFromAsn1(certAsn1, true); + } catch(e) { + // ignore unknown cert type, pass asn1 value + bag.cert = null; + bag.asn1 = certAsn1; + } + }; + break; + + default: + var error = new Error('Unsupported PKCS#12 SafeBag type.'); + error.oid = bag.type; + throw error; + } + + /* Validate SafeBag value (i.e. CertBag, etc.) and capture data if needed. */ + if(validator !== undefined && + !asn1.validate(bagAsn1, validator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 ' + validator.name); + error.errors = errors; + throw error; + } + + /* Call decoder function from above to store the results. */ + decoder(); + } + + return res; +} + +/** + * Decode PKCS#12 SET OF PKCS12Attribute into JavaScript object. + * + * @param attributes SET OF PKCS12Attribute (ASN.1 object). + * + * @return the decoded attributes. + */ +function _decodeBagAttributes(attributes) { + var decodedAttrs = {}; + + if(attributes !== undefined) { + for(var i = 0; i < attributes.length; ++i) { + var capture = {}; + var errors = []; + if(!asn1.validate(attributes[i], attributeValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 BagAttribute.'); + error.errors = errors; + throw error; + } + + var oid = asn1.derToOid(capture.oid); + if(pki.oids[oid] === undefined) { + // unsupported attribute type, ignore. + continue; + } + + decodedAttrs[pki.oids[oid]] = []; + for(var j = 0; j < capture.values.length; ++j) { + decodedAttrs[pki.oids[oid]].push(capture.values[j].value); + } + } + } + + return decodedAttrs; +} + +/** + * Wraps a private key and certificate in a PKCS#12 PFX wrapper. If a + * password is provided then the private key will be encrypted. + * + * An entire certificate chain may also be included. To do this, pass + * an array for the "cert" parameter where the first certificate is + * the one that is paired with the private key and each subsequent one + * verifies the previous one. The certificates may be in PEM format or + * have been already parsed by Forge. + * + * @todo implement password-based-encryption for the whole package + * + * @param key the private key. + * @param cert the certificate (may be an array of certificates in order + * to specify a certificate chain). + * @param password the password to use, null for none. + * @param options: + * algorithm the encryption algorithm to use + * ('aes128', 'aes192', 'aes256', '3des'), defaults to 'aes128'. + * count the iteration count to use. + * saltSize the salt size to use. + * useMac true to include a MAC, false not to, defaults to true. + * localKeyId the local key ID to use, in hex. + * friendlyName the friendly name to use. + * generateLocalKeyId true to generate a random local key ID, + * false not to, defaults to true. + * + * @return the PKCS#12 PFX ASN.1 object. + */ +p12.toPkcs12Asn1 = function(key, cert, password, options) { + // set default options + options = options || {}; + options.saltSize = options.saltSize || 8; + options.count = options.count || 2048; + options.algorithm = options.algorithm || options.encAlgorithm || 'aes128'; + if(!('useMac' in options)) { + options.useMac = true; + } + if(!('localKeyId' in options)) { + options.localKeyId = null; + } + if(!('generateLocalKeyId' in options)) { + options.generateLocalKeyId = true; + } + + var localKeyId = options.localKeyId; + var bagAttrs; + if(localKeyId !== null) { + localKeyId = forge.util.hexToBytes(localKeyId); + } else if(options.generateLocalKeyId) { + // use SHA-1 of paired cert, if available + if(cert) { + var pairedCert = forge.util.isArray(cert) ? cert[0] : cert; + if(typeof pairedCert === 'string') { + pairedCert = pki.certificateFromPem(pairedCert); + } + var sha1 = forge.md.sha1.create(); + sha1.update(asn1.toDer(pki.certificateToAsn1(pairedCert)).getBytes()); + localKeyId = sha1.digest().getBytes(); + } else { + // FIXME: consider using SHA-1 of public key (which can be generated + // from private key components), see: cert.generateSubjectKeyIdentifier + // generate random bytes + localKeyId = forge.random.getBytes(20); + } + } + + var attrs = []; + if(localKeyId !== null) { + attrs.push( + // localKeyID + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // attrId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.localKeyId).getBytes()), + // attrValues + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + localKeyId) + ]) + ])); + } + if('friendlyName' in options) { + attrs.push( + // friendlyName + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // attrId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.friendlyName).getBytes()), + // attrValues + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BMPSTRING, false, + options.friendlyName) + ]) + ])); + } + + if(attrs.length > 0) { + bagAttrs = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, attrs); + } + + // collect contents for AuthenticatedSafe + var contents = []; + + // create safe bag(s) for certificate chain + var chain = []; + if(cert !== null) { + if(forge.util.isArray(cert)) { + chain = cert; + } else { + chain = [cert]; + } + } + + var certSafeBags = []; + for(var i = 0; i < chain.length; ++i) { + // convert cert from PEM as necessary + cert = chain[i]; + if(typeof cert === 'string') { + cert = pki.certificateFromPem(cert); + } + + // SafeBag + var certBagAttrs = (i === 0) ? bagAttrs : undefined; + var certAsn1 = pki.certificateToAsn1(cert); + var certSafeBag = + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.certBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // CertBag + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // certId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.x509Certificate).getBytes()), + // certValue (x509Certificate) + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(certAsn1).getBytes()) + ])])]), + // bagAttributes (OPTIONAL) + certBagAttrs + ]); + certSafeBags.push(certSafeBag); + } + + if(certSafeBags.length > 0) { + // SafeContents + var certSafeContents = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, certSafeBags); + + // ContentInfo + var certCI = + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(certSafeContents).getBytes()) + ]) + ]); + contents.push(certCI); + } + + // create safe contents for private key + var keyBag = null; + if(key !== null) { + // SafeBag + var pkAsn1 = pki.wrapRsaPrivateKey(pki.privateKeyToAsn1(key)); + if(password === null) { + // no encryption + keyBag = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.keyBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // PrivateKeyInfo + pkAsn1 + ]), + // bagAttributes (OPTIONAL) + bagAttrs + ]); + } else { + // encrypted PrivateKeyInfo + keyBag = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.pkcs8ShroudedKeyBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // EncryptedPrivateKeyInfo + pki.encryptPrivateKeyInfo(pkAsn1, password, options) + ]), + // bagAttributes (OPTIONAL) + bagAttrs + ]); + } + + // SafeContents + var keySafeContents = + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [keyBag]); + + // ContentInfo + var keyCI = + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(keySafeContents).getBytes()) + ]) + ]); + contents.push(keyCI); + } + + // create AuthenticatedSafe by stringing together the contents + var safe = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, contents); + + var macData; + if(options.useMac) { + // MacData + var sha1 = forge.md.sha1.create(); + var macSalt = new forge.util.ByteBuffer( + forge.random.getBytes(options.saltSize)); + var count = options.count; + // 160-bit key + var key = p12.generateKey(password, macSalt, 3, count, 20); + var mac = forge.hmac.create(); + mac.start(sha1, key); + mac.update(asn1.toDer(safe).getBytes()); + var macValue = mac.getMac(); + macData = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // mac DigestInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // digestAlgorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm = SHA-1 + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.sha1).getBytes()), + // parameters = Null + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // digest + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, + false, macValue.getBytes()) + ]), + // macSalt OCTET STRING + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, macSalt.getBytes()), + // iterations INTEGER (XXX: Only support count < 65536) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(count).getBytes() + ) + ]); + } + + // PFX + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version (3) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(3).getBytes()), + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(safe).getBytes()) + ]) + ]), + macData + ]); +}; + +/** + * Derives a PKCS#12 key. + * + * @param password the password to derive the key material from, null or + * undefined for none. + * @param salt the salt, as a ByteBuffer, to use. + * @param id the PKCS#12 ID byte (1 = key material, 2 = IV, 3 = MAC). + * @param iter the iteration count. + * @param n the number of bytes to derive from the password. + * @param md the message digest to use, defaults to SHA-1. + * + * @return a ByteBuffer with the bytes derived from the password. + */ +p12.generateKey = forge.pbe.generatePkcs12Key; + +} // end module implementation + +/* ########## Begin module wrapper ########## */ +var name = 'pkcs12'; +if(typeof define !== 'function') { + // NodeJS -> AMD + if(typeof module === 'object' && module.exports) { + var nodeJS = true; + define = function(ids, factory) { + factory(require, module); + }; + } else { + // <script> + if(typeof forge === 'undefined') { + forge = {}; + } + return initModule(forge); + } +} +// AMD +var deps; +var defineFunc = function(require, module) { + module.exports = function(forge) { + var mods = deps.map(function(dep) { + return require(dep); + }).concat(initModule); + // handle circular dependencies + forge = forge || {}; + forge.defined = forge.defined || {}; + if(forge.defined[name]) { + return forge[name]; + } + forge.defined[name] = true; + for(var i = 0; i < mods.length; ++i) { + mods[i](forge); + } + return forge[name]; + }; +}; +var tmpDefine = define; +define = function(ids, factory) { + deps = (typeof ids === 'string') ? factory.slice(2) : ids.slice(2); + if(nodeJS) { + delete define; + return tmpDefine.apply(null, Array.prototype.slice.call(arguments, 0)); + } + define = tmpDefine; + return define.apply(null, Array.prototype.slice.call(arguments, 0)); +}; +define([ + 'require', + 'module', + './asn1', + './hmac', + './oids', + './pkcs7asn1', + './pbe', + './random', + './rsa', + './sha1', + './util', + './x509' +], function() { + defineFunc.apply(null, Array.prototype.slice.call(arguments, 0)); +}); +})(); |