A native implementation of TLS (and various other cryptographic tools) in JavaScript.
The Forge software is a fully native implementation of the TLS protocol in JavaScript, a set of cryptography utilities, and a set of tools for developing Web Apps that utilize many network resources.
Forge is fast. Benchmarks against other popular JavaScript cryptography libraries can be found here:
- http://dominictarr.github.io/crypto-bench/
- http://cryptojs.altervista.org/test/simulate-threading-speed_test.html
Note: Please see the Security Considerations section before using packaging systems and pre-built files.
Forge uses a CommonJS module structure with a build process for browser bundles. The older 0.6.x branch with standalone files is available but will not be regularly updated.
If you want to use forge with Node.js, it is available through npm:
https://www.npmjs.com/package/node-forge
Installation:
npm install node-forge
You can then use forge as a regular module:
varforge=require('node-forge');The npm package includes pre-built forge.min.js, forge.all.min.js, and
prime.worker.min.js using the UMD format.
To use it via jsDelivr include this in your html:
<scriptsrc="https://cdn.jsdelivr.net/npm/node-forge@1.0.0/dist/forge.min.js"></script>To use it via unpkg include this in your html:
<scriptsrc="https://unpkg.com/node-forge@1.0.0/dist/forge.min.js"></script>The core JavaScript has the following requirements to build and test:
- Building a browser bundle:
- Node.js
- npm
- Testing
- Node.js
- npm
- Chrome, Firefox, Safari (optional)
Some special networking features can optionally use a Flash component. See the Flash README for details.
To create single file bundles for use with browsers run the following:
npm install
npm run build
This will create single non-minimized and minimized files that can be included in the browser:
dist/forge.js
dist/forge.min.js
A bundle that adds some utilities and networking support is also available:
dist/forge.all.js
dist/forge.all.min.js
Include the file via:
<scriptsrc="YOUR_SCRIPT_PATH/forge.js"></script>or
<scriptsrc="YOUR_SCRIPT_PATH/forge.min.js"></script>The above bundles will synchronously create a global 'forge' object.
Note: These bundles will not include any WebWorker scripts (eg:
dist/prime.worker.js), so these will need to be accessible from the browser
if any WebWorkers are used.
The build process uses webpack and the config file can be modified to generate a file or files that only contain the parts of forge you need.
Browserify override support is also present in package.json.
npm install
Forge natively runs in a Node.js environment:
npm test
Automated testing is done via Karma. By default it will run the tests with Headless Chrome.
npm run test-karma
Is 'mocha' reporter output too verbose? Other reporters are available. Try 'dots', 'progress', or 'tap'.
npm run test-karma -- --reporters progress
By default webpack is used. Browserify can also be used.
BUNDLER=browserify npm run test-karma
You can also specify one or more browsers to use.
npm run test-karma -- --browsers Chrome,Firefox,Safari,ChromeHeadless
The reporter option and BUNDLER environment variable can also be used.
Testing in a browser uses webpack to combine forge and all tests and then
loading the result in a browser. A simple web server is provided that will
output the HTTP or HTTPS URLs to load. It also will start a simple Flash Policy
Server. Unit tests and older legacy tests are provided. Custom ports can be
used by running node tests/server.js manually.
To run the unit tests in a browser a special forge build is required:
npm run test-build
To run legacy browser based tests the main forge build is required:
npm run build
The tests are run with a custom server that prints out the URLs to use:
npm run test-server
There are some other random tests and benchmarks available in the tests directory.
To perform coverage testing of the unit tests, run the following. The results
will be put in the coverage/ directory. Note that coverage testing can slow
down some tests considerably.
npm install
npm run coverage
Any contributions (eg: PRs) that are accepted will be brought under the same license used by the rest of the Forge project. This license allows Forge to be used under the terms of either the BSD License or the GNU General Public License (GPL) Version 2.
See: LICENSE
If a contribution contains 3rd party source code with its own license, it may retain it, so long as that license is compatible with the Forge license.
If at any time you wish to disable the use of native code, where available,
for particular forge features like its secure random number generator, you
may set the forge.options.usePureJavaScript flag to true. It is
not recommended that you set this flag as native code is typically more
performant and may have stronger security properties. It may be useful to
set this flag to test certain features that you plan to run in environments
that are different from your testing environment.
To disable native code when including forge in the browser:
// run this *after* including the forge scriptforge.options.usePureJavaScript=true;To disable native code when using Node.js:
varforge=require('node-forge');forge.options.usePureJavaScript=true;Provides a native javascript client and server-side TLS implementation.
Examples
// create TLS clientvarclient=forge.tls.createConnection({server: false,caStore: /* Array of PEM-formatted certs or a CA store object */,sessionCache: {},// supported cipher suites in order of preferencecipherSuites: [forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],virtualHost: 'example.com',verify: function(connection,verified,depth,certs){if(depth===0){varcn=certs[0].subject.getField('CN').value;if(cn!=='example.com'){verified={alert: forge.tls.Alert.Description.bad_certificate,message: 'Certificate common name does not match hostname.'};}}returnverified;},connected: function(connection){console.log('connected');// send message to serverconnection.prepare(forge.util.encodeUtf8('Hi server!'));/* NOTE: experimental, start heartbeat retransmission timer myHeartbeatTimer = setInterval(function() { connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); }, 5*60*1000);*/},/* provide a client-side cert if you want getCertificate: function(connection, hint) { return myClientCertificate; }, /* the private key for the client-side cert if provided */getPrivateKey: function(connection,cert){returnmyClientPrivateKey;},tlsDataReady: function(connection){// TLS data (encrypted) is ready to be sent to the serversendToServerSomehow(connection.tlsData.getBytes());// if you were communicating with the server below, you'd do:// server.process(connection.tlsData.getBytes());},dataReady: function(connection){// clear data from the server is readyconsole.log('the server sent: '+forge.util.decodeUtf8(connection.data.getBytes()));// close connectionconnection.close();},/* NOTE: experimental heartbeatReceived: function(connection, payload) { // restart retransmission timer, look at payload clearInterval(myHeartbeatTimer); myHeartbeatTimer = setInterval(function() { connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); }, 5*60*1000); payload.getBytes(); },*/closed: function(connection){console.log('disconnected');},error: function(connection,error){console.log('uh oh',error);}});// start the handshake processclient.handshake();// when encrypted TLS data is received from the server, process itclient.process(encryptedBytesFromServer);// create TLS servervarserver=forge.tls.createConnection({server: true,caStore: /* Array of PEM-formatted certs or a CA store object */,sessionCache: {},// supported cipher suites in order of preferencecipherSuites: [forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],// require a client-side certificate if you wantverifyClient: true,verify: function(connection,verified,depth,certs){if(depth===0){varcn=certs[0].subject.getField('CN').value;if(cn!=='the-client'){verified={alert: forge.tls.Alert.Description.bad_certificate,message: 'Certificate common name does not match expected client.'};}}returnverified;},connected: function(connection){console.log('connected');// send message to clientconnection.prepare(forge.util.encodeUtf8('Hi client!'));/* NOTE: experimental, start heartbeat retransmission timer myHeartbeatTimer = setInterval(function() { connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); }, 5*60*1000);*/},getCertificate: function(connection,hint){returnmyServerCertificate;},getPrivateKey: function(connection,cert){returnmyServerPrivateKey;},tlsDataReady: function(connection){// TLS data (encrypted) is ready to be sent to the clientsendToClientSomehow(connection.tlsData.getBytes());// if you were communicating with the client above you'd do:// client.process(connection.tlsData.getBytes());},dataReady: function(connection){// clear data from the client is readyconsole.log('the client sent: '+forge.util.decodeUtf8(connection.data.getBytes()));// close connectionconnection.close();},/* NOTE: experimental heartbeatReceived: function(connection, payload) { // restart retransmission timer, look at payload clearInterval(myHeartbeatTimer); myHeartbeatTimer = setInterval(function() { connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); }, 5*60*1000); payload.getBytes(); },*/closed: function(connection){console.log('disconnected');},error: function(connection,error){console.log('uh oh',error);}});// when encrypted TLS data is received from the client, process itserver.process(encryptedBytesFromClient);Connect to a TLS server using node's net.Socket:
varsocket=newnet.Socket();varclient=forge.tls.createConnection({server: false,verify: function(connection,verified,depth,certs){// skip verification for testingconsole.log('[tls] server certificate verified');returntrue;},connected: function(connection){console.log('[tls] connected');// prepare some data to send (note that the string is interpreted as// 'binary' encoded, which works for HTTP which only uses ASCII, use// forge.util.encodeUtf8(str) otherwiseclient.prepare('GET / HTTP/1.0\r\n\r\n');},tlsDataReady: function(connection){// encrypted data is ready to be sent to the servervardata=connection.tlsData.getBytes();socket.write(data,'binary');// encoding should be 'binary'},dataReady: function(connection){// clear data from the server is readyvardata=connection.data.getBytes();console.log('[tls] data received from the server: '+data);},closed: function(){console.log('[tls] disconnected');},error: function(connection,error){console.log('[tls] error',error);}});socket.on('connect',function(){console.log('[socket] connected');client.handshake();});socket.on('data',function(data){client.process(data.toString('binary'));// encoding should be 'binary'});socket.on('end',function(){console.log('[socket] disconnected');});// connect to google.comsocket.connect(443,'google.com');// or connect to gmail's imap server (but don't send the HTTP header above)//socket.connect(993, 'imap.gmail.com');Provides a native JavaScript mini-implementation of an http client that uses pooled sockets.
Examples
// create an HTTP GET requestvarrequest=forge.http.createRequest({method: 'GET',path: url.path});// send the request somewheresendSomehow(request.toString());// receive responsevarbuffer=forge.util.createBuffer();varresponse=forge.http.createResponse();varsomeAsyncDataHandler=function(bytes){if(!response.bodyReceived){buffer.putBytes(bytes);if(!response.headerReceived){if(response.readHeader(buffer)){console.log('HTTP response header: '+response.toString());}}if(response.headerReceived&&!response.bodyReceived){if(response.readBody(buffer)){console.log('HTTP response body: '+response.body);}}}};Provides some SSH utility functions.
Examples
// encodes (and optionally encrypts) a private RSA key as a Putty PPK fileforge.ssh.privateKeyToPutty(privateKey,passphrase,comment);// encodes a public RSA key as an OpenSSH fileforge.ssh.publicKeyToOpenSSH(key,comment);// encodes a private RSA key as an OpenSSH fileforge.ssh.privateKeyToOpenSSH(privateKey,passphrase);// gets the SSH public key fingerprint in a byte bufferforge.ssh.getPublicKeyFingerprint(key);// gets a hex-encoded, colon-delimited SSH public key fingerprintforge.ssh.getPublicKeyFingerprint(key,{encoding: 'hex',delimiter: ':'});Provides an XmlHttpRequest implementation using forge.http as a backend.
Examples
// TODOProvides an interface to create and use raw sockets provided via Flash.
Examples
// TODOProvides a basic API for block encryption and decryption. There is built-in support for the ciphers: AES, 3DES, and DES, and for the modes of operation: ECB, CBC, CFB, OFB, CTR, and GCM.
These algorithms are currently supported:
- AES-ECB
- AES-CBC
- AES-CFB
- AES-OFB
- AES-CTR
- AES-GCM
- 3DES-ECB
- 3DES-CBC
- DES-ECB
- DES-CBC
When using an AES algorithm, the key size will determine whether AES-128, AES-192, or AES-256 is used (all are supported). When a DES algorithm is used, the key size will determine whether 3DES or regular DES is used. Use a 3DES algorithm to enforce Triple-DES.
Examples
// generate a random key and IV// Note: a key size of 16 bytes will use AES-128, 24 => AES-192, 32 => AES-256varkey=forge.random.getBytesSync(16);variv=forge.random.getBytesSync(16);/* alternatively, generate a password-based 16-byte keyvar salt = forge.random.getBytesSync(128);var key = forge.pkcs5.pbkdf2('password', salt, numIterations, 16);*/// encrypt some bytes using CBC mode// (other modes include: ECB, CFB, OFB, CTR, and GCM)// Note: CBC and ECB modes use PKCS#7 padding as defaultvarcipher=forge.cipher.createCipher('AES-CBC',key);cipher.start({iv: iv});cipher.update(forge.util.createBuffer(someBytes));cipher.finish();varencrypted=cipher.output;// outputs encrypted hexconsole.log(encrypted.toHex());// decrypt some bytes using CBC mode// (other modes include: CFB, OFB, CTR, and GCM)vardecipher=forge.cipher.createDecipher('AES-CBC',key);decipher.start({iv: iv});decipher.update(encrypted);varresult=decipher.finish();// check 'result' for true/false// outputs decrypted hexconsole.log(decipher.output.toHex());// decrypt bytes using CBC mode and streaming// Performance can suffer for large multi-MB inputs due to buffer// manipulations. Stream processing in chunks can offer significant// improvement. CPU intensive update() calls could also be performed with// setImmediate/setTimeout to avoid blocking the main browser UI thread (not// shown here). Optimal block size depends on the JavaScript VM and other// factors. Encryption can use a simple technique for increased performance.varencryptedBytes=encrypted.bytes();vardecipher=forge.cipher.createDecipher('AES-CBC',key);decipher.start({iv: iv});varlength=encryptedBytes.length;varchunkSize=1024*64;varindex=0;vardecrypted='';do{decrypted+=decipher.output.getBytes();varbuf=forge.util.createBuffer(encryptedBytes.substr(index,chunkSize));decipher.update(buf);index+=chunkSize;}while(index<length);varresult=decipher.finish();assert(result);decrypted+=decipher.output.getBytes();console.log(forge.util.bytesToHex(decrypted));// encrypt some bytes using GCM modevarcipher=forge.cipher.createCipher('AES-GCM',key);cipher.start({iv: iv,// should be a 12-byte binary-encoded string or byte bufferadditionalData: 'binary-encoded string',// optionaltagLength: 128// optional, defaults to 128 bits});cipher.update(forge.util.createBuffer(someBytes));cipher.finish();varencrypted=cipher.output;vartag=cipher.mode.tag;// outputs encrypted hexconsole.log(encrypted.toHex());// outputs authentication tagconsole.log(tag.toHex());// decrypt some bytes using GCM modevardecipher=forge.cipher.createDecipher('AES-GCM',key);decipher.start({iv: iv,additionalData: 'binary-encoded string',// optionaltagLength: 128,// optional, defaults to 128 bitstag: tag// authentication tag from encryption});decipher.update(encrypted);varpass=decipher.finish();// pass is false if there was a failure (eg: authentication tag didn't match)if(pass){// outputs decrypted hexconsole.log(decipher.output.toHex());}Using forge in Node.js to match openssl's "enc" command line tool (Note: OpenSSL "enc" uses a non-standard file format with a custom key derivation function and a fixed iteration count of 1, which some consider less secure than alternatives such as OpenPGP/GnuPG):
varforge=require('node-forge');varfs=require('fs');// openssl enc -des3 -in input.txt -out input.encfunctionencrypt(password){varinput=fs.readFileSync('input.txt',{encoding: 'binary'});// 3DES key and IV sizesvarkeySize=24;varivSize=8;// get derived bytes// Notes:// 1. If using an alternative hash (eg: "-md sha1") pass// "forge.md.sha1.create()" as the final parameter.// 2. If using "-nosalt", set salt to null.varsalt=forge.random.getBytesSync(8);// var md = forge.md.sha1.create(); // "-md sha1"varderivedBytes=forge.pbe.opensslDeriveBytes(password,salt,keySize+ivSize/*, md*/);varbuffer=forge.util.createBuffer(derivedBytes);varkey=buffer.getBytes(keySize);variv=buffer.getBytes(ivSize);varcipher=forge.cipher.createCipher('3DES-CBC',key);cipher.start({iv: iv});cipher.update(forge.util.createBuffer(input,'binary'));cipher.finish();varoutput=forge.util.createBuffer();// if using a salt, prepend this to the output:if(salt!==null){output.putBytes('Salted__');// (add to match openssl tool output)output.putBytes(salt);}output.putBuffer(cipher.output);fs.writeFileSync('input.enc',output.getBytes(),{encoding: 'binary'});}// openssl enc -d -des3 -in input.enc -out input.dec.txtfunctiondecrypt(password){varinput=fs.readFileSync('input.enc',{encoding: 'binary'});// parse salt from inputinput=forge.util.createBuffer(input,'binary');// skip "Salted__" (if known to be present)input.getBytes('Salted__'.length);// read 8-byte saltvarsalt=input.getBytes(8);// Note: if using "-nosalt", skip above parsing and use// var salt = null;// 3DES key and IV sizesvarkeySize=24;varivSize=8;varderivedBytes=forge.pbe.opensslDeriveBytes(password,salt,keySize+ivSize);varbuffer=forge.util.createBuffer(derivedBytes);varkey=buffer.getBytes(keySize);variv=buffer.getBytes(ivSize);vardecipher=forge.cipher.createDecipher('3DES-CBC',key);decipher.start({iv: iv});decipher.update(input);varresult=decipher.finish();// check 'result' for true/falsefs.writeFileSync('input.dec.txt',decipher.output.getBytes(),{encoding: 'binary'});}Provides AES encryption and decryption in CBC, CFB, OFB, CTR, and GCM modes. See CIPHER for examples.
Provides 3DES and DES encryption and decryption in ECB and CBC modes. See CIPHER for examples.
Examples
// generate a random key and IVvarkey=forge.random.getBytesSync(16);variv=forge.random.getBytesSync(8);// encrypt some bytesvarcipher=forge.rc2.createEncryptionCipher(key);cipher.start(iv);cipher.update(forge.util.createBuffer(someBytes));cipher.finish();varencrypted=cipher.output;// outputs encrypted hexconsole.log(encrypted.toHex());// decrypt some bytesvarcipher=forge.rc2.createDecryptionCipher(key);cipher.start(iv);cipher.update(encrypted);cipher.finish();// outputs decrypted hexconsole.log(cipher.output.toHex());Provides X.509 certificate support, ED25519 key generation and signing/verifying, and RSA public and private key encoding, decoding, encryption/decryption, and signing/verifying.
Special thanks to TweetNaCl.js for providing the bulk of the implementation.
Examples
vared25519=forge.pki.ed25519;// generate a random ED25519 keypairvarkeypair=ed25519.generateKeyPair();// `keypair.publicKey` is a node.js Buffer or Uint8Array// `keypair.privateKey` is a node.js Buffer or Uint8Array// generate a random ED25519 keypair based on a random 32-byte seedvarseed=forge.random.getBytesSync(32);varkeypair=ed25519.generateKeyPair({seed: seed});// generate a random ED25519 keypair based on a "password" 32-byte seedvarpassword='Mai9ohgh6ahxee0jutheew0pungoozil';varseed=newforge.util.ByteBuffer(password,'utf8');varkeypair=ed25519.generateKeyPair({seed: seed});// sign a UTF-8 messagevarsignature=ED25519.sign({message: 'test',// also accepts `binary` if you want to pass a binary stringencoding: 'utf8',// node.js Buffer, Uint8Array, forge ByteBuffer, binary stringprivateKey: privateKey});// `signature` is a node.js Buffer or Uint8Array// sign a message passed as a buffervarsignature=ED25519.sign({// also accepts a forge ByteBuffer or Uint8Arraymessage: Buffer.from('test','utf8'),privateKey: privateKey});// sign a message digest (shorter "message" == better performance)varmd=forge.md.sha256.create();md.update('test','utf8');varsignature=ED25519.sign({md: md,privateKey: privateKey});// verify a signature on a UTF-8 messagevarverified=ED25519.verify({message: 'test',encoding: 'utf8',// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringsignature: signature,// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringpublicKey: publicKey});// `verified` is true/false// sign a message passed as a buffervarverified=ED25519.verify({// also accepts a forge ByteBuffer or Uint8Arraymessage: Buffer.from('test','utf8'),// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringsignature: signature,// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringpublicKey: publicKey});// verify a signature on a message digestvarmd=forge.md.sha256.create();md.update('test','utf8');varverified=ED25519.verify({md: md,// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringsignature: signature,// node.js Buffer, Uint8Array, forge ByteBuffer, or binary stringpublicKey: publicKey});Examples
varrsa=forge.pki.rsa;// generate an RSA key pair synchronously// *NOT RECOMMENDED*: Can be significantly slower than async and may block// JavaScript execution. Will use native Node.js 10.12.0+ API if possible.varkeypair=rsa.generateKeyPair({bits: 2048,e: 0x10001});// generate an RSA key pair asynchronously (uses web workers if available)// use workers: -1 to run a fast core estimator to optimize # of workers// *RECOMMENDED*: Can be significantly faster than sync. Will use native// Node.js 10.12.0+ or WebCrypto API if possible.rsa.generateKeyPair({bits: 2048,workers: 2},function(err,keypair){// keypair.privateKey, keypair.publicKey});// generate an RSA key pair in steps that attempt to run for a specified period// of time on the main JS threadvarstate=rsa.createKeyPairGenerationState(2048,0x10001);varstep=function(){// run for 100 msif(!rsa.stepKeyPairGenerationState(state,100)){setTimeout(step,1);}else{// done, turn off progress indicator, use state.keys}};// turn on progress indicator, schedule generation to runsetTimeout(step);// sign data with a private key and output DigestInfo DER-encoded bytes// (defaults to RSASSA PKCS#1 v1.5)varmd=forge.md.sha1.create();md.update('sign this','utf8');varsignature=privateKey.sign(md);// verify data with a public key// (defaults to RSASSA PKCS#1 v1.5)varverified=publicKey.verify(md.digest().bytes(),signature);// sign data using RSASSA-PSS where PSS uses a SHA-1 hash, a SHA-1 based// masking function MGF1, and a 20 byte saltvarmd=forge.md.sha1.create();md.update('sign this','utf8');varpss=forge.pss.create({md: forge.md.sha1.create(),mgf: forge.mgf.mgf1.create(forge.md.sha1.create()),saltLength: 20// optionally pass 'prng' with a custom PRNG implementation// optionalls pass 'salt' with a forge.util.ByteBuffer w/custom salt});varsignature=privateKey.sign(md,pss);// verify RSASSA-PSS signaturevarpss=forge.pss.create({md: forge.md.sha1.create(),mgf: forge.mgf.mgf1.create(forge.md.sha1.create()),saltLength: 20// optionally pass 'prng' with a custom PRNG implementation});varmd=forge.md.sha1.create();md.update('sign this','utf8');publicKey.verify(md.digest().getBytes(),signature,pss);// encrypt data with a public key (defaults to RSAES PKCS#1 v1.5)varencrypted=publicKey.encrypt(bytes);// decrypt data with a private key (defaults to RSAES PKCS#1 v1.5)vardecrypted=privateKey.decrypt(encrypted);// encrypt data with a public key using RSAES PKCS#1 v1.5varencrypted=publicKey.encrypt(bytes,'RSAES-PKCS1-V1_5');// decrypt data with a private key using RSAES PKCS#1 v1.5vardecrypted=privateKey.decrypt(encrypted,'RSAES-PKCS1-V1_5');// encrypt data with a public key using RSAES-OAEPvarencrypted=publicKey.encrypt(bytes,'RSA-OAEP');// decrypt data with a private key using RSAES-OAEPvardecrypted=privateKey.decrypt(encrypted,'RSA-OAEP');// encrypt data with a public key using RSAES-OAEP/SHA-256varencrypted=publicKey.encrypt(bytes,'RSA-OAEP',{md: forge.md.sha256.create()});// decrypt data with a private key using RSAES-OAEP/SHA-256vardecrypted=privateKey.decrypt(encrypted,'RSA-OAEP',{md: forge.md.sha256.create()});// encrypt data with a public key using RSAES-OAEP/SHA-256/MGF1-SHA-1// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Paddingvarencrypted=publicKey.encrypt(bytes,'RSA-OAEP',{md: forge.md.sha256.create(),mgf1: {md: forge.md.sha1.create()}});// decrypt data with a private key using RSAES-OAEP/SHA-256/MGF1-SHA-1// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Paddingvardecrypted=privateKey.decrypt(encrypted,'RSA-OAEP',{md: forge.md.sha256.create(),mgf1: {md: forge.md.sha1.create()}});Examples
// generate an RSA key pair asynchronously (uses web workers if available)// use workers: -1 to run a fast core estimator to optimize # of workersforge.rsa.generateKeyPair({bits: 2048,workers: -1},function(err,keypair){// keypair.privateKey, keypair.publicKey});// generate and encapsulate a 16-byte secret keyvarkdf1=newforge.kem.kdf1(forge.md.sha1.create());varkem=forge.kem.rsa.create(kdf1);varresult=kem.encrypt(keypair.publicKey,16);// result has 'encapsulation' and 'key'// encrypt some bytesvariv=forge.random.getBytesSync(12);varsomeBytes='hello world!';varcipher=forge.cipher.createCipher('AES-GCM',result.key);cipher.start({iv: iv});cipher.update(forge.util.createBuffer(someBytes));cipher.finish();varencrypted=cipher.output.getBytes();vartag=cipher.mode.tag.getBytes();// send 'encrypted', 'iv', 'tag', and result.encapsulation to recipient// decrypt encapsulated 16-byte secret keyvarkdf1=newforge.kem.kdf1(forge.md.sha1.create());varkem=forge.kem.rsa.create(kdf1);varkey=kem.decrypt(keypair.privateKey,result.encapsulation,16);// decrypt some bytesvardecipher=forge.cipher.createDecipher('AES-GCM',key);decipher.start({iv: iv,tag: tag});decipher.update(forge.util.createBuffer(encrypted));varpass=decipher.finish();// pass is false if there was a failure (eg: authentication tag didn't match)if(pass){// outputs 'hello world!'console.log(decipher.output.getBytes());}Examples
varpki=forge.pki;// convert a PEM-formatted public key to a Forge public keyvarpublicKey=pki.publicKeyFromPem(pem);// convert a Forge public key to PEM-formatvarpem=pki.publicKeyToPem(publicKey);// convert an ASN.1 SubjectPublicKeyInfo to a Forge public keyvarpublicKey=pki.publicKeyFromAsn1(subjectPublicKeyInfo);// convert a Forge public key to an ASN.1 SubjectPublicKeyInfovarsubjectPublicKeyInfo=pki.publicKeyToAsn1(publicKey);// gets a SHA-1 RSAPublicKey fingerprint a byte bufferpki.getPublicKeyFingerprint(key);// gets a SHA-1 SubjectPublicKeyInfo fingerprint a byte bufferpki.getPublicKeyFingerprint(key,{type: 'SubjectPublicKeyInfo'});// gets a hex-encoded, colon-delimited SHA-1 RSAPublicKey public key fingerprintpki.getPublicKeyFingerprint(key,{encoding: 'hex',delimiter: ':'});// gets a hex-encoded, colon-delimited SHA-1 SubjectPublicKeyInfo public key fingerprintpki.getPublicKeyFingerprint(key,{type: 'SubjectPublicKeyInfo',encoding: 'hex',delimiter: ':'});// gets a hex-encoded, colon-delimited MD5 RSAPublicKey public key fingerprintpki.getPublicKeyFingerprint(key,{md: forge.md.md5.create(),encoding: 'hex',delimiter: ':'});// creates a CA storevarcaStore=pki.createCaStore([/* PEM-encoded cert */, ...]);// add a certificate to the CA storecaStore.addCertificate(certObjectOrPemString);// gets the issuer (its certificate) for the given certificatevarissuerCert=caStore.getIssuer(subjectCert);// verifies a certificate chain against a CA storepki.verifyCertificateChain(caStore,chain,customVerifyCallback);// signs a certificate using the given private keycert.sign(privateKey);// signs a certificate using SHA-256 instead of SHA-1cert.sign(privateKey,forge.md.sha256.create());// verifies an issued certificate using the certificates public keyvarverified=issuer.verify(issued);// generate a keypair and create an X.509v3 certificatevarkeys=pki.rsa.generateKeyPair(2048);varcert=pki.createCertificate();cert.publicKey=keys.publicKey;// alternatively set public key from a csr//cert.publicKey = csr.publicKey;// NOTE: serialNumber is the hex encoded value of an ASN.1 INTEGER.// Conforming CAs should ensure serialNumber is:// - no more than 20 octets// - non-negative (prefix a '00' if your value starts with a '1' bit)cert.serialNumber='01';cert.validity.notBefore=newDate();cert.validity.notAfter=newDate();cert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear()+1);varattrs=[{name: 'commonName',value: 'example.org'},{name: 'countryName',value: 'US'},{shortName: 'ST',value: 'Virginia'},{name: 'localityName',value: 'Blacksburg'},{name: 'organizationName',value: 'Test'},{shortName: 'OU',value: 'Test'}];cert.setSubject(attrs);// alternatively set subject from a csr//cert.setSubject(csr.subject.attributes);cert.setIssuer(attrs);cert.setExtensions([{name: 'basicConstraints',cA: true},{name: 'keyUsage',keyCertSign: true,digitalSignature: true,nonRepudiation: true,keyEncipherment: true,dataEncipherment: true},{name: 'extKeyUsage',serverAuth: true,clientAuth: true,codeSigning: true,emailProtection: true,timeStamping: true},{name: 'nsCertType',client: true,server: true,email: true,objsign: true,sslCA: true,emailCA: true,objCA: true},{name: 'subjectAltName',altNames: [{type: 6,// URIvalue: 'http://example.org/webid#me'},{type: 7,// IPip: '127.0.0.1'}]},{name: 'subjectKeyIdentifier'}]);/* alternatively set extensions from a csrvar extensions = csr.getAttribute({name: 'extensionRequest'}).extensions;// optionally add more extensionsextensions.push.apply(extensions, [{ name: 'basicConstraints', cA: true}, { name: 'keyUsage', keyCertSign: true, digitalSignature: true, nonRepudiation: true, keyEncipherment: true, dataEncipherment: true}]);cert.setExtensions(extensions);*/// self-sign certificatecert.sign(keys.privateKey);// convert a Forge certificate to PEMvarpem=pki.certificateToPem(cert);// convert a Forge certificate from PEMvarcert=pki.certificateFromPem(pem);// convert an ASN.1 X.509x3 object to a Forge certificatevarcert=pki.certificateFromAsn1(obj);// convert a Forge certificate to an ASN.1 X.509v3 objectvarasn1Cert=pki.certificateToAsn1(cert);Provides the password-based key-derivation function from PKCS#5.
Examples
// generate a password-based 16-byte key// note an optional message digest can be passed as the final parametervarsalt=forge.random.getBytesSync(128);varderivedKey=forge.pkcs5.pbkdf2('password',salt,numIterations,16);// generate key asynchronously// note an optional message digest can be passed before the callbackforge.pkcs5.pbkdf2('password',salt,numIterations,16,function(err,derivedKey){// do something w/derivedKey});Provides cryptographically protected messages from PKCS#7.
Examples
// convert a message from PEMvarp7=forge.pkcs7.messageFromPem(pem);// look at p7.recipients// find a recipient by the issuer of a certificatevarrecipient=p7.findRecipient(cert);// decryptp7.decrypt(p7.recipients[0],privateKey);// create a p7 enveloped messagevarp7=forge.pkcs7.createEnvelopedData();// add a recipientvarcert=forge.pki.certificateFromPem(certPem);p7.addRecipient(cert);// set contentp7.content=forge.util.createBuffer('Hello');// encryptp7.encrypt();// convert message to PEMvarpem=forge.pkcs7.messageToPem(p7);// create a degenerate PKCS#7 certificate container// (CRLs not currently supported, only certificates)varp7=forge.pkcs7.createSignedData();p7.addCertificate(certOrCertPem1);p7.addCertificate(certOrCertPem2);varpem=forge.pkcs7.messageToPem(p7);// create PKCS#7 signed data with authenticatedAttributes// attributes include: PKCS#9 content-type, message-digest, and signing-timevarp7=forge.pkcs7.createSignedData();p7.content=forge.util.createBuffer('Some content to be signed.','utf8');p7.addCertificate(certOrCertPem);p7.addSigner({key: privateKeyAssociatedWithCert,certificate: certOrCertPem,digestAlgorithm: forge.pki.oids.sha256,authenticatedAttributes: [{type: forge.pki.oids.contentType,value: forge.pki.oids.data},{type: forge.pki.oids.messageDigest// value will be auto-populated at signing time},{type: forge.pki.oids.signingTime,// value can also be auto-populated at signing timevalue: newDate()}]});p7.sign();varpem=forge.pkcs7.messageToPem(p7);// PKCS#7 Sign in detached mode.// Includes the signature and certificate without the signed data.p7.sign({detached: true});Examples
varpki=forge.pki;// convert a PEM-formatted private key to a Forge private keyvarprivateKey=pki.privateKeyFromPem(pem);// convert a Forge private key to PEM-formatvarpem=pki.privateKeyToPem(privateKey);// convert an ASN.1 PrivateKeyInfo or RSAPrivateKey to a Forge private keyvarprivateKey=pki.privateKeyFromAsn1(rsaPrivateKey);// convert a Forge private key to an ASN.1 RSAPrivateKeyvarrsaPrivateKey=pki.privateKeyToAsn1(privateKey);// wrap an RSAPrivateKey ASN.1 object in a PKCS#8 ASN.1 PrivateKeyInfovarprivateKeyInfo=pki.wrapRsaPrivateKey(rsaPrivateKey);// convert a PKCS#8 ASN.1 PrivateKeyInfo to PEMvarpem=pki.privateKeyInfoToPem(privateKeyInfo);// encrypts a PrivateKeyInfo using a custom password and// outputs an EncryptedPrivateKeyInfovarencryptedPrivateKeyInfo=pki.encryptPrivateKeyInfo(privateKeyInfo,'myCustomPasswordHere',{algorithm: 'aes256',// 'aes128', 'aes192', 'aes256', '3des'});// decrypts an ASN.1 EncryptedPrivateKeyInfo that was encrypted// with a custom passwordvarprivateKeyInfo=pki.decryptPrivateKeyInfo(encryptedPrivateKeyInfo,'myCustomPasswordHere');// converts an EncryptedPrivateKeyInfo to PEMvarpem=pki.encryptedPrivateKeyToPem(encryptedPrivateKeyInfo);// converts a PEM-encoded EncryptedPrivateKeyInfo to ASN.1 formatvarencryptedPrivateKeyInfo=pki.encryptedPrivateKeyFromPem(pem);// wraps and encrypts a Forge private key and outputs it in PEM formatvarpem=pki.encryptRsaPrivateKey(privateKey,'password');// encrypts a Forge private key and outputs it in PEM format using OpenSSL's// proprietary legacy format + encapsulated PEM headers (DEK-Info)varpem=pki.encryptRsaPrivateKey(privateKey,'password',{legacy: true});// decrypts a PEM-formatted, encrypted private keyvarprivateKey=pki.decryptRsaPrivateKey(pem,'password');// sets an RSA public key from a private keyvarpublicKey=pki.setRsaPublicKey(privateKey.n,privateKey.e);Provides certification requests or certificate signing requests (CSR) from PKCS#10.
Examples
// generate a key pairvarkeys=forge.pki.rsa.generateKeyPair(2048);// create a certification request (CSR)varcsr=forge.pki.createCertificationRequest();csr.publicKey=keys.publicKey;csr.setSubject([{name: 'commonName',value: 'example.org'},{name: 'countryName',value: 'US'},{shortName: 'ST',value: 'Virginia'},{name: 'localityName',value: 'Blacksburg'},{name: 'organizationName',value: 'Test'},{shortName: 'OU',value: 'Test'}]);// set (optional) attributescsr.setAttributes([{name: 'challengePassword',value: 'password'},{name: 'unstructuredName',value: 'My Company, Inc.'},{name: 'extensionRequest',extensions: [{name: 'subjectAltName',altNames: [{// 2 is DNS typetype: 2,value: 'test.domain.com'},{type: 2,value: 'other.domain.com',},{type: 2,value: 'www.domain.net'}]}]}]);// sign certification requestcsr.sign(keys.privateKey);// verify certification requestvarverified=csr.verify();// convert certification request to PEM-formatvarpem=forge.pki.certificationRequestToPem(csr);// convert a Forge certification request from PEM-formatvarcsr=forge.pki.certificationRequestFromPem(pem);// get an attributecsr.getAttribute({name: 'challengePassword'});// get extensions arraycsr.getAttribute({name: 'extensionRequest'}).extensions;Provides the cryptographic archive file format from PKCS#12.
Note for Chrome/Firefox/iOS/similar users: If you have trouble importing
a PKCS#12 container, try using the TripleDES algorithm. It can be passed
to forge.pkcs12.toPkcs12Asn1 using the {algorithm: '3des'} option.
Examples
// decode p12 from base64varp12Der=forge.util.decode64(p12b64);// get p12 as ASN.1 objectvarp12Asn1=forge.asn1.fromDer(p12Der);// decrypt p12 using the password 'password'varp12=forge.pkcs12.pkcs12FromAsn1(p12Asn1,'password');// decrypt p12 using non-strict parsing mode (resolves some ASN.1 parse errors)varp12=forge.pkcs12.pkcs12FromAsn1(p12Asn1,false,'password');// decrypt p12 using literally no password (eg: Mac OS X/apple push)varp12=forge.pkcs12.pkcs12FromAsn1(p12Asn1);// decrypt p12 using an "empty" password (eg: OpenSSL with no password input)varp12=forge.pkcs12.pkcs12FromAsn1(p12Asn1,'');// p12.safeContents is an array of safe contents, each of// which contains an array of safeBags// get bags by friendlyNamevarbags=p12.getBags({friendlyName: 'test'});// bags are key'd by attribute type (here "friendlyName")// and the key values are an array of matching objectsvarcert=bags.friendlyName[0];// get bags by localKeyIdvarbags=p12.getBags({localKeyId: buffer});// bags are key'd by attribute type (here "localKeyId")// and the key values are an array of matching objectsvarcert=bags.localKeyId[0];// get bags by localKeyId (input in hex)varbags=p12.getBags({localKeyIdHex: '7b59377ff142d0be4565e9ac3d396c01401cd879'});// bags are key'd by attribute type (here "localKeyId", *not* "localKeyIdHex")// and the key values are an array of matching objectsvarcert=bags.localKeyId[0];// get bags by typevarbags=p12.getBags({bagType: forge.pki.oids.certBag});// bags are key'd by bagType and each bagType key's value// is an array of matches (in this case, certificate objects)varcert=bags[forge.pki.oids.certBag][0];// get bags by friendlyName and filter on bag typevarbags=p12.getBags({friendlyName: 'test',bagType: forge.pki.oids.certBag});// get key bagsvarbags=p12.getBags({bagType: forge.pki.oids.keyBag});// get keyvarbag=bags[forge.pki.oids.keyBag][0];varkey=bag.key;// if the key is in a format unrecognized by forge then// bag.key will be `null`, use bag.asn1 to get the ASN.1// representation of the keyif(bag.key===null){varkeyAsn1=bag.asn1;// can now convert back to DER/PEM/etc for export}// generate a p12 using AES (default)varp12Asn1=forge.pkcs12.toPkcs12Asn1(privateKey,certificateChain,'password');// generate a p12 that can be imported by Chrome/Firefox/iOS// (requires the use of Triple DES instead of AES)varp12Asn1=forge.pkcs12.toPkcs12Asn1(privateKey,certificateChain,'password',{algorithm: '3des'});// base64-encode p12varp12Der=forge.asn1.toDer(p12Asn1).getBytes();varp12b64=forge.util.encode64(p12Der);// create download link for p12vara=document.createElement('a');a.download='example.p12';a.setAttribute('href','data:application/x-pkcs12;base64,'+p12b64);a.appendChild(document.createTextNode('Download'));Provides ASN.1 DER encoding and decoding.
Examples
varasn1=forge.asn1;// create a SubjectPublicKeyInfovarsubjectPublicKeyInfo=asn1.create(asn1.Class.UNIVERSAL,asn1.Type.SEQUENCE,true,[// AlgorithmIdentifierasn1.create(asn1.Class.UNIVERSAL,asn1.Type.SEQUENCE,true,[// algorithmasn1.create(asn1.Class.UNIVERSAL,asn1.Type.OID,false,asn1.oidToDer(pki.oids['rsaEncryption']).getBytes()),// parameters (null)asn1.create(asn1.Class.UNIVERSAL,asn1.Type.NULL,false,'')]),// subjectPublicKeyasn1.create(asn1.Class.UNIVERSAL,asn1.Type.BITSTRING,false,[// RSAPublicKeyasn1.create(asn1.Class.UNIVERSAL,asn1.Type.SEQUENCE,true,[// modulus (n)asn1.create(asn1.Class.UNIVERSAL,asn1.Type.INTEGER,false,_bnToBytes(key.n)),// publicExponent (e)asn1.create(asn1.Class.UNIVERSAL,asn1.Type.INTEGER,false,_bnToBytes(key.e))])])]);// serialize an ASN.1 object to DER formatvarderBuffer=asn1.toDer(subjectPublicKeyInfo);// deserialize to an ASN.1 object from a byte buffer filled with DER datavarobject=asn1.fromDer(derBuffer);// convert an OID dot-separated string to a byte buffervarderOidBuffer=asn1.oidToDer('1.2.840.113549.1.1.5');// convert a byte buffer with a DER-encoded OID to a dot-separated stringconsole.log(asn1.derToOid(derOidBuffer));// output: 1.2.840.113549.1.1.5// validates that an ASN.1 object matches a particular ASN.1 structure and// captures data of interest from that structure for easy accessvarpublicKeyValidator={name: 'SubjectPublicKeyInfo',tagClass: asn1.Class.UNIVERSAL,type: asn1.Type.SEQUENCE,constructed: true,captureAsn1: 'subjectPublicKeyInfo',value: [{name: 'SubjectPublicKeyInfo.AlgorithmIdentifier',tagClass: asn1.Class.UNIVERSAL,type: asn1.Type.SEQUENCE,constructed: true,value: [{name: 'AlgorithmIdentifier.algorithm',tagClass: asn1.Class.UNIVERSAL,type: asn1.Type.OID,constructed: false,capture: 'publicKeyOid'}]},{// subjectPublicKeyname: 'SubjectPublicKeyInfo.subjectPublicKey',tagClass: asn1.Class.UNIVERSAL,type: asn1.Type.BITSTRING,constructed: false,value: [{// RSAPublicKeyname: 'SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey',tagClass: asn1.Class.UNIVERSAL,type: asn1.Type.SEQUENCE,constructed: true,optional: true,captureAsn1: 'rsaPublicKey'}]}]};varcapture={};varerrors=[];if(!asn1.validate(publicKeyValidator,subjectPublicKeyInfo,validator,capture,errors)){throw'ASN.1 object is not a SubjectPublicKeyInfo.';}// capture.subjectPublicKeyInfo contains the full ASN.1 object// capture.rsaPublicKey contains the full ASN.1 object for the RSA public key// capture.publicKeyOid only contains the value for the OIDvaroid=asn1.derToOid(capture.publicKeyOid);if(oid!==pki.oids['rsaEncryption']){throw'Unsupported OID.';}// pretty print an ASN.1 object to a string for debugging purposesasn1.prettyPrint(object);Provides SHA-1 message digests.
Examples
varmd=forge.md.sha1.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: 2fd4e1c67a2d28fced849ee1bb76e7391b93eb12Provides SHA-256 message digests.
Examples
varmd=forge.md.sha256.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592Provides SHA-384 message digests.
Examples
varmd=forge.md.sha384.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c494011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1Provides SHA-512 message digests.
Examples
// SHA-512varmd=forge.md.sha512.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: 07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6// SHA-512/224varmd=forge.md.sha512.sha224.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: 944cd2847fb54558d4775db0485a50003111c8e5daa63fe722c6aa37// SHA-512/256varmd=forge.md.sha512.sha256.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: dd9d67b371519c339ed8dbd25af90e976a1eeefd4ad3d889005e532fc5bef04dProvides MD5 message digests.
Examples
varmd=forge.md.md5.create();md.update('The quick brown fox jumps over the lazy dog');console.log(md.digest().toHex());// output: 9e107d9d372bb6826bd81d3542a419d6Provides HMAC w/any supported message digest algorithm.
Examples
varhmac=forge.hmac.create();hmac.start('sha1','Jefe');hmac.update('what do ya want for nothing?');console.log(hmac.digest().toHex());// output: effcdf6ae5eb2fa2d27416d5f184df9c259a7c79Provides an API for generating large, random, probable primes.
Examples
// generate a random prime on the main JS threadvarbits=1024;forge.prime.generateProbablePrime(bits,function(err,num){console.log('random prime',num.toString(16));});// generate a random prime using Web Workers (if available, otherwise// falls back to the main thread)varbits=1024;varoptions={algorithm: {name: 'PRIMEINC',workers: -1// auto-optimize # of workers}};forge.prime.generateProbablePrime(bits,options,function(err,num){console.log('random prime',num.toString(16));});Provides a Fortuna-based cryptographically-secure pseudo-random number generator, to be used with a cryptographic function backend, e.g. AES. An implementation using AES as a backend is provided. An API for collecting entropy is given, though if window.crypto.getRandomValues is available, it will be used automatically.
Examples
// get some random bytes synchronouslyvarbytes=forge.random.getBytesSync(32);console.log(forge.util.bytesToHex(bytes));// get some random bytes asynchronouslyforge.random.getBytes(32,function(err,bytes){console.log(forge.util.bytesToHex(bytes));});// collect some entropy if you'd likeforge.random.collect(someRandomBytes);jQuery().mousemove(function(e){forge.random.collectInt(e.clientX,16);forge.random.collectInt(e.clientY,16);});// specify a seed file for use with the synchronous API if you'd likeforge.random.seedFileSync=function(needed){// get 'needed' number of random bytes from somewherereturnfetchedRandomBytes;};// specify a seed file for use with the asynchronous API if you'd likeforge.random.seedFile=function(needed,callback){// get the 'needed' number of random bytes from somewherecallback(null,fetchedRandomBytes);});// register the main thread to send entropy or a Web Worker to receive// entropy on demand from the main threadforge.random.registerWorker(self);// generate a new instance of a PRNG with no collected entropyvarmyPrng=forge.random.createInstance();Provides queuing and synchronizing tasks in a web application.
Examples
// TODOProvides utility functions, including byte buffer support, base64, bytes to/from hex, zlib inflate/deflate, etc.
Examples
// encode/decode base64varencoded=forge.util.encode64(str);varstr=forge.util.decode64(encoded);// encode/decode UTF-8varencoded=forge.util.encodeUtf8(str);varstr=forge.util.decodeUtf8(encoded);// bytes to/from hexvarbytes=forge.util.hexToBytes(hex);varhex=forge.util.bytesToHex(bytes);// create an empty byte buffervarbuffer=forge.util.createBuffer();// create a byte buffer from raw binary bytesvarbuffer=forge.util.createBuffer(input,'raw');// create a byte buffer from utf8 bytesvarbuffer=forge.util.createBuffer(input,'utf8');// get the length of the buffer in bytesbuffer.length();// put bytes into the bufferbuffer.putBytes(bytes);// put a 32-bit integer into the bufferbuffer.putInt32(10);// buffer to hexbuffer.toHex();// get a copy of the bytes in the bufferbytes.bytes(/* count */);// empty this buffer and get its contentsbytes.getBytes(/* count */);// convert a forge buffer into a Node.js Buffer// make sure you specify the encoding as 'binary'varforgeBuffer=forge.util.createBuffer();varnodeBuffer=Buffer.from(forgeBuffer.getBytes(),'binary');// convert a Node.js Buffer into a forge buffer// make sure you specify the encoding as 'binary'varnodeBuffer=Buffer.from('CAFE','hex');varforgeBuffer=forge.util.createBuffer(nodeBuffer.toString('binary'));Provides logging to a javascript console using various categories and levels of verbosity.
Examples
// TODOThe flash README provides details on rebuilding the optional Flash component used for networking. It also provides details on Policy Server support.
When using this code please keep the following in mind:
- Cryptography is hard. Please review and test this code before depending on it for critical functionality.
- The nature of JavaScript is that execution of this code depends on trusting a very large set of JavaScript tools and systems. Consider runtime variations, runtime characteristics, runtime optimization, code optimization, code minimization, code obfuscation, bundling tools, possible bugs, the Forge code itself, and so on.
- If using pre-built bundles from NPM, another CDN, or similar, be aware someone else ran the tools to create those files.
- Use a secure transport channel such as TLS to load scripts and consider using additional security mechanisms such as Subresource Integrity script attributes.
- Use "native" functionality where possible. This can be critical when dealing with performance and random number generation. Note that the JavaScript random number algorithms should perform well if given suitable entropy.
- Understand possible attacks against cryptographic systems. For instance side channel and timing attacks may be possible due to the difficulty in implementing constant time algorithms in pure JavaScript.
- Certain features in this library are less susceptible to attacks depending on usage. This primarily includes features that deal with data format manipulation or those that are not involved in communication.
- https://digitalbazaar.com/2010/07/20/javascript-tls-1/
- https://digitalbazaar.com/2010/07/20/javascript-tls-2/
- Code: https://github.com/digitalbazaar/forge
- Bugs: https://github.com/digitalbazaar/forge/issues
- Email: support@digitalbazaar.com
- IRC: #forgejs on Libera.Chat (people may also be on freenode for historical reasons).
Financial support is welcome and helps contribute to further development:
- For PayPal please send to paypal@digitalbazaar.com.
- Something else? Please contact support@digitalbazaar.com.