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feat: move bits from https:/richardschneider/ipfs-encryption
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*.png binary | ||
* crlf=input |
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<mxfile userAgent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36" version="7.8.2" editor="www.draw.io"><diagram id="a8b2919f-aefc-d24c-c550-ea0bf34e92af" name="Page-1">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</diagram></mxfile> |
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{ | ||
"name": "libp2p-keychain", | ||
"version": "0.0.0", | ||
"description": "", | ||
"version": "0.1.0", | ||
"description": "Key management and cryptographically protected messages", | ||
"main": "src/index.js", | ||
"scripts": { | ||
"lint": "aegir lint", | ||
|
@@ -29,16 +29,37 @@ | |
"IPFS", | ||
"libp2p", | ||
"keys", | ||
"encryption", | ||
"secure", | ||
"crypto" | ||
], | ||
"author": "David Dias <[email protected]>", | ||
"author": "Richard Schneider <[email protected]>", | ||
"license": "MIT", | ||
"bugs": { | ||
"url": "https:/libp2p/js-libp2p-keychain/issues" | ||
}, | ||
"homepage": "https:/libp2p/js-libp2p-keychain#readme", | ||
"dependencies": { | ||
"async": "^2.6.0", | ||
"deepmerge": "^1.5.2", | ||
"interface-datastore": "~0.4.1", | ||
"libp2p-crypto": "~0.10.3", | ||
"multihashes": "~0.4.12", | ||
"node-forge": "~0.7.1", | ||
"pull-stream": "^3.6.1", | ||
"sanitize-filename": "^1.6.1" | ||
}, | ||
"devDependencies": { | ||
"aegir": "^12.2.0", | ||
"pre-commit": "^1.2.2" | ||
"chai": "^4.1.2", | ||
"chai-string": "^1.4.0", | ||
"datastore-fs": "^0.4.1", | ||
"datastore-level": "^0.7.0", | ||
"dirty-chai": "^2.0.1", | ||
"level-js": "^2.2.4", | ||
"mocha": "^4.0.1", | ||
"peer-id": "^0.10.2", | ||
"pre-commit": "^1.2.2", | ||
"rimraf": "^2.6.2" | ||
} | ||
} |
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'use strict' | ||
|
||
const async = require('async') | ||
const forge = require('node-forge') | ||
const util = require('./util') | ||
|
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class CMS { | ||
constructor (keystore) { | ||
if (!keystore) { | ||
throw new Error('keystore is required') | ||
} | ||
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this.keystore = keystore; | ||
} | ||
|
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createAnonymousEncryptedData (name, plain, callback) { | ||
const self = this | ||
if (!Buffer.isBuffer(plain)) { | ||
return callback(new Error('Data is required')) | ||
} | ||
|
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self.keystore._getPrivateKey(name, (err, key) => { | ||
if (err) { | ||
return callback(err) | ||
} | ||
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try { | ||
const privateKey = forge.pki.decryptRsaPrivateKey(key, self.keystore._()) | ||
util.certificateForKey(privateKey, (err, certificate) => { | ||
if (err) return callback(err) | ||
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// create a p7 enveloped message | ||
const p7 = forge.pkcs7.createEnvelopedData() | ||
p7.addRecipient(certificate) | ||
p7.content = forge.util.createBuffer(plain) | ||
p7.encrypt() | ||
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// convert message to DER | ||
const der = forge.asn1.toDer(p7.toAsn1()).getBytes() | ||
callback(null, Buffer.from(der, 'binary')) | ||
}) | ||
} catch (err) { | ||
callback(err) | ||
} | ||
}) | ||
} | ||
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readData (cmsData, callback) { | ||
if (!Buffer.isBuffer(cmsData)) { | ||
return callback(new Error('CMS data is required')) | ||
} | ||
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const self = this | ||
let cms | ||
try { | ||
const buf = forge.util.createBuffer(cmsData.toString('binary')); | ||
const obj = forge.asn1.fromDer(buf) | ||
cms = forge.pkcs7.messageFromAsn1(obj) | ||
} catch (err) { | ||
return callback(new Error('Invalid CMS: ' + err.message)) | ||
} | ||
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// Find a recipient whose key we hold. We only deal with recipient certs | ||
// issued by ipfs (O=ipfs). | ||
const recipients = cms.recipients | ||
.filter(r => r.issuer.find(a => a.shortName === 'O' && a.value === 'ipfs')) | ||
.filter(r => r.issuer.find(a => a.shortName === 'CN')) | ||
.map(r => { | ||
return { | ||
recipient: r, | ||
keyId: r.issuer.find(a => a.shortName === 'CN').value | ||
} | ||
}) | ||
async.detect( | ||
recipients, | ||
(r, cb) => self.keystore.findKeyById(r.keyId, (err, info) => cb(null, !err && info)), | ||
(err, r) => { | ||
if (err) return callback(err) | ||
if (!r) return callback(new Error('No key found for decryption')) | ||
|
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async.waterfall([ | ||
(cb) => self.keystore.findKeyById(r.keyId, cb), | ||
(key, cb) => self.keystore._getPrivateKey(key.name, cb) | ||
], (err, pem) => { | ||
if (err) return callback(err); | ||
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const privateKey = forge.pki.decryptRsaPrivateKey(pem, self.keystore._()) | ||
cms.decrypt(r.recipient, privateKey) | ||
async.setImmediate(() => callback(null, Buffer.from(cms.content.getBytes(), 'binary'))) | ||
}) | ||
} | ||
) | ||
} | ||
|
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} | ||
|
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module.exports = CMS |
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'use strict' | ||
|
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module.exports = require('./keychain') |
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