From aeaae0189e439a6e31161a40846e31c762411b77 Mon Sep 17 00:00:00 2001 From: hill399 Date: Fri, 26 Mar 2021 08:24:43 +0000 Subject: [PATCH] Add KMS code, operational decode. --- masq_ea/decode.js | 24 ++- masq_ea/encode.js | 21 ++- masq_ea/encrypt.js | 78 +++++++++ masq_ea/index.js | 8 +- masq_ea/package.json | 1 + masq_ea/yarn.lock | 5 + package-lock.json | 394 +++++++++++++++++++++++++++++++++++++++++-- package.json | 4 +- 8 files changed, 505 insertions(+), 30 deletions(-) create mode 100644 masq_ea/encrypt.js diff --git a/masq_ea/decode.js b/masq_ea/decode.js index 679902b..832d1cc 100644 --- a/masq_ea/decode.js +++ b/masq_ea/decode.js @@ -1,3 +1,5 @@ +const decrpytBuffer = require('./encrypt').decrpytBuffer; + const IPFS = require('ipfs-core'); const sg = require('./steganography/steganography'); @@ -9,11 +11,12 @@ const { JSDOM } = jsdom; global.document = new JSDOM(`...`).window.document; global.Image = Canvas.Image; -const decodeImage = async (args) => { +const decodeImage = async (jobRunID, args) => { const cid = args[0]; const ipfs = await IPFS.create(); const stream = ipfs.cat(cid); + const chunks = []; for await (const buffer of stream) { @@ -21,9 +24,18 @@ const decodeImage = async (args) => { } const buffer = Buffer.concat(chunks); - const res = sg.decode(buffer); + const bCipher = sg.decode(buffer); - return res; + const cipher = Buffer.from(bCipher, 'base64'); + + const message = await decrpytBuffer(cipher); + + return { + jobRunID: jobRunID, + data: { "cid": cid, "complete": true }, + result: true, + statusCode: 200 + } } module.exports.decodeImage = decodeImage; @@ -32,10 +44,6 @@ module.exports.decodeImage = decodeImage; /* --- TODO --- -- Migrate to cloud function. -- Implement HSM keyring. -- Decode image. -- Decode string with HSM key. -- Return CID. +- Add secure message delivery (Telegram?) */ \ No newline at end of file diff --git a/masq_ea/encode.js b/masq_ea/encode.js index cdeb5a1..4b3aa29 100644 --- a/masq_ea/encode.js +++ b/masq_ea/encode.js @@ -1,3 +1,5 @@ +const encrpytBuffer = require('./encrypt').encrpytBuffer; + const IPFS = require('ipfs-core'); const sg = require('./steganography/steganography'); @@ -22,7 +24,10 @@ const uriToIpfs = async (ipfs, uri) => { const resImage = ImageDataURI.decode(uri); const result = await ipfs.add(resImage.dataBuffer); - return `https://ipfs.io/ipfs/${result.cid}`; + const imageUrl = `https://ipfs.io/ipfs/${result.cid}`; + const imageCid = `${result.cid}`; + + return {imageUrl, imageCid}; } const buildAndDeployMetadata = async (ipfs, url, title, desc) => { @@ -33,7 +38,9 @@ const buildAndDeployMetadata = async (ipfs, url, title, desc) => { }; const result = await ipfs.add(JSON.stringify(metadata)); - return `https://ipfs.io/ipfs/${result.cid}`; + const metadataUrl = `https://ipfs.io/ipfs/${result.cid}`; + + return metadataUrl; } @@ -44,16 +51,16 @@ const encodeImage = async (jobRunID, args) => { const desc = args[3]; const imageBuffer = await getBufferFromBucket(id); - const dataUri = await sg.encode(message, imageBuffer); + const cipher = await encrpytBuffer(message); + const dataUri = await sg.encode(cipher, imageBuffer); const ipfs = await IPFS.create(); - const url = await uriToIpfs(ipfs, dataUri); - const metadataUrl = await buildAndDeployMetadata(ipfs, url, title, desc); - + const {imageUrl, imageCid} = await uriToIpfs(ipfs, dataUri); + const metadataUrl = await buildAndDeployMetadata(ipfs, imageUrl, title, desc); return { jobRunID: jobRunID, - data: { "fileId": id, "url": metadataUrl, "result": metadataUrl }, + data: { "fileId": id, "url": metadataUrl, "cid": imageCid, "result": metadataUrl }, result: metadataUrl, statusCode: 200 } diff --git a/masq_ea/encrypt.js b/masq_ea/encrypt.js new file mode 100644 index 0000000..dfc5886 --- /dev/null +++ b/masq_ea/encrypt.js @@ -0,0 +1,78 @@ +// Imports the Cloud KMS library +const { KeyManagementServiceClient } = require('@google-cloud/kms'); +const crc32c = require('fast-crc32c'); + +const projectId = process.env.KSM_PROJECT_ID; +const locationId = process.env.KSM_LOCATION_ID; +const keyRingId = process.env.KSM_KEYRING_ID; +const keyId = process.env.KSM_KEY_ID; + +// Instantiates a client +const client = new KeyManagementServiceClient({ + keyFilename: "./serviceAccount.json" +}); + +const keyName = client.cryptoKeyPath(projectId, locationId, keyRingId, keyId); + +// Build the key name +const encrpytBuffer = async (plaintext) => { + const buffer = Buffer.from(plaintext); + // Optional, but recommended: compute plaintext's CRC32C. + const bufferCrc32c = crc32c.calculate(buffer); + + const [encryptResponse] = await client.encrypt({ + name: keyName, + plaintext: buffer, + plaintextCrc32c: { + value: bufferCrc32c, + }, + }); + + const ciphertext = encryptResponse.ciphertext; + + if (!encryptResponse.verifiedPlaintextCrc32c) { + throw new Error('Encrypt: request corrupted in-transit'); + } + if ( + crc32c.calculate(ciphertext) !== + Number(encryptResponse.ciphertextCrc32c.value) + ) { + throw new Error('Encrypt: response corrupted in-transit'); + } + + console.log(`Ciphertext: ${ciphertext.toString('base64')}`); + + return ciphertext.toString('base64'); +} + +const decrpytBuffer = async (cipher) => { + + const ciphertextCrc32c = crc32c.calculate(cipher); + + const [decryptResponse] = await client.decrypt({ + name: keyName, + ciphertext: cipher, + ciphertextCrc32c: { + value: ciphertextCrc32c, + }, + }); + + // Optional, but recommended: perform integrity verification on decryptResponse. + // For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit: + // https://cloud.google.com/kms/docs/data-integrity-guidelines + if ( + crc32c.calculate(decryptResponse.plaintext) !== + Number(decryptResponse.plaintextCrc32c.value) + ) { + throw new Error('Decrypt: response corrupted in-transit'); + } + + const plaintext = decryptResponse.plaintext.toString('utf8'); + + console.log(`Plaintext: ${plaintext}`); + return plaintext; + +} + +module.exports.encrpytBuffer = encrpytBuffer; +module.exports.decrpytBuffer = decrpytBuffer; diff --git a/masq_ea/index.js b/masq_ea/index.js index 2a903ea..203ae66 100644 --- a/masq_ea/index.js +++ b/masq_ea/index.js @@ -5,10 +5,10 @@ const decodeImage = require('./decode').decodeImage; const customParams = { func: ['func'], - fileId: ['fileId'], - message: ['message'], - title: ['title'], - desc: ['desc'], + fileId: false, + message: false, + title: false, + desc: false, url: false } diff --git a/masq_ea/package.json b/masq_ea/package.json index 188fa02..1ebadc7 100644 --- a/masq_ea/package.json +++ b/masq_ea/package.json @@ -12,6 +12,7 @@ "@chainlink/external-adapter": "^0.2.6", "@google-cloud/storage": "^5.8.1", "canvas": "^2.7.0", + "dotenv": "^8.2.0", "image-data-uri": "^2.0.1", "ipfs-core": "^0.5.4", "jsdom": "^16.5.1" diff --git a/masq_ea/yarn.lock b/masq_ea/yarn.lock index d6ea518..122bacb 100644 --- a/masq_ea/yarn.lock +++ b/masq_ea/yarn.lock @@ -1850,6 +1850,11 @@ dot-prop@^5.1.0, dot-prop@^5.2.0: dependencies: is-obj "^2.0.0" +dotenv@^8.2.0: + version "8.2.0" + resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-8.2.0.tgz#97e619259ada750eea3e4ea3e26bceea5424b16a" + integrity sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw== + duplexify@^3.6.0: version "3.7.1" resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.7.1.tgz#2a4df5317f6ccfd91f86d6fd25d8d8a103b88309" diff --git a/package-lock.json b/package-lock.json index add12ba..893ecf0 100644 --- a/package-lock.json +++ b/package-lock.json @@ -781,6 +781,64 @@ "@ethersproject/strings": "^5.0.8" } }, + "@google-cloud/kms": { + "version": "2.3.1", + "resolved": "https://registry.npmjs.org/@google-cloud/kms/-/kms-2.3.1.tgz", + "integrity": "sha512-bJhtO3t5W5iYE8EiDbp0efIQdAWOWsgfklRz1ihF+h7Orge2KPsRI0wKuMrhRwakxWH3ewPmXUhRrPw1RFaqSQ==", + "requires": { + "google-gax": "^2.9.2" + } + }, + "@grpc/grpc-js": { + "version": "1.2.12", + "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.2.12.tgz", + "integrity": "sha512-+gPCklP1eqIgrNPyzddYQdt9+GvZqPlLpIjIo+TveE+gbtp74VV1A2ju8ExeO8ma8f7MbpaGZx/KJPYVWL9eDw==", + "requires": { + "@types/node": ">=12.12.47", + "google-auth-library": "^6.1.1", + "semver": "^6.2.0" + }, + "dependencies": { + "google-auth-library": { + "version": "6.1.6", + "resolved": "https://registry.npmjs.org/google-auth-library/-/google-auth-library-6.1.6.tgz", + "integrity": "sha512-Q+ZjUEvLQj/lrVHF/IQwRo6p3s8Nc44Zk/DALsN+ac3T4HY/g/3rrufkgtl+nZ1TW7DNAw5cTChdVp4apUXVgQ==", + "requires": { + "arrify": "^2.0.0", + "base64-js": "^1.3.0", + "ecdsa-sig-formatter": "^1.0.11", + "fast-text-encoding": "^1.0.0", + "gaxios": "^4.0.0", + "gcp-metadata": "^4.2.0", + "gtoken": "^5.0.4", + "jws": "^4.0.0", + "lru-cache": "^6.0.0" + } + }, + "lru-cache": { + "version": "6.0.0", + "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz", + "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==", + "requires": { + "yallist": "^4.0.0" + } + }, + "yallist": { + "version": "4.0.0", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", + "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==" + } + } + }, + "@grpc/proto-loader": { + "version": "0.5.6", + "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.5.6.tgz", + "integrity": "sha512-DT14xgw3PSzPxwS13auTEwxhMMOoz33DPUKNtmYK/QYbBSpLXJy78FGGs5yVoxVobEqPm4iW9MOIoz0A3bLTRQ==", + "requires": { + "lodash.camelcase": "^4.3.0", + "protobufjs": "^6.8.6" + } + }, "@nomiclabs/ethereumjs-vm": { "version": "4.2.2", "resolved": "https://registry.npmjs.org/@nomiclabs/ethereumjs-vm/-/ethereumjs-vm-4.2.2.tgz", @@ -825,6 +883,60 @@ "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.3.0.tgz", "integrity": "sha512-AemZEsQYtUp1WRkcmZm1div5ORfTpLquLaziCIrSagjxyKdmObxuaY1yjQ5SHFMctR8rLwp706NXTbiIRJg7pw==" }, + "@protobufjs/aspromise": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz", + "integrity": "sha1-m4sMxmPWaafY9vXQiToU00jzD78=" + }, + "@protobufjs/base64": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/@protobufjs/base64/-/base64-1.1.2.tgz", + "integrity": "sha512-AZkcAA5vnN/v4PDqKyMR5lx7hZttPDgClv83E//FMNhR2TMcLUhfRUBHCmSl0oi9zMgDDqRUJkSxO3wm85+XLg==" + }, + "@protobufjs/codegen": { + "version": "2.0.4", + "resolved": "https://registry.npmjs.org/@protobufjs/codegen/-/codegen-2.0.4.tgz", + "integrity": "sha512-YyFaikqM5sH0ziFZCN3xDC7zeGaB/d0IUb9CATugHWbd1FRFwWwt4ld4OYMPWu5a3Xe01mGAULCdqhMlPl29Jg==" + }, + "@protobufjs/eventemitter": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@protobufjs/eventemitter/-/eventemitter-1.1.0.tgz", + "integrity": "sha1-NVy8mLr61ZePntCV85diHx0Ga3A=" + }, + "@protobufjs/fetch": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@protobufjs/fetch/-/fetch-1.1.0.tgz", + "integrity": "sha1-upn7WYYUr2VwDBYZ/wbUVLDYTEU=", + "requires": { + "@protobufjs/aspromise": "^1.1.1", + "@protobufjs/inquire": "^1.1.0" + } + }, + "@protobufjs/float": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/@protobufjs/float/-/float-1.0.2.tgz", + "integrity": "sha1-Xp4avctz/Ap8uLKR33jIy9l7h9E=" + }, + "@protobufjs/inquire": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@protobufjs/inquire/-/inquire-1.1.0.tgz", + "integrity": "sha1-/yAOPnzyQp4tyvwRQIKOjMY48Ik=" + }, + "@protobufjs/path": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/@protobufjs/path/-/path-1.1.2.tgz", + "integrity": "sha1-bMKyDFya1q0NzP0hynZz2Nf79o0=" + }, + "@protobufjs/pool": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@protobufjs/pool/-/pool-1.1.0.tgz", + "integrity": "sha1-Cf0V8tbTq/qbZbw2ZQbWrXhG/1Q=" + }, + "@protobufjs/utf8": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz", + "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA=" + }, "@resolver-engine/core": { "version": "0.3.3", "resolved": "https://registry.npmjs.org/@resolver-engine/core/-/core-0.3.3.tgz", @@ -1440,6 +1552,11 @@ "integrity": "sha512-rYff6FI+ZTKAPkJUoyz7Udq3GaoDZnxYDEvdEdFZASiA7PoErltHezDishqQiSDWrGxvxmplH304jyzQmjp0AQ==", "dev": true }, + "@types/long": { + "version": "4.0.1", + "resolved": "https://registry.npmjs.org/@types/long/-/long-4.0.1.tgz", + "integrity": "sha512-5tXH6Bx/kNGd3MgffdmP4dy2Z+G4eaXw0SE81Tq3BNadtnMR5/ySMzX4SLEzHJzSmPNn4HIdpQsBvXMUykr58w==" + }, "@types/lru-cache": { "version": "5.1.0", "resolved": "https://registry.npmjs.org/@types/lru-cache/-/lru-cache-5.1.0.tgz", @@ -1565,7 +1682,6 @@ "version": "3.0.0", "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz", "integrity": 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"bindings": { + "version": "1.5.0", + "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz", + "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==", + "optional": true, + "requires": { + "file-uri-to-path": "1.0.0" + } + }, "blakejs": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.1.0.tgz", @@ -2066,6 +2195,11 @@ "ieee754": "^1.1.13" } }, + "buffer-equal-constant-time": { + "version": "1.0.1", + "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz", + "integrity": "sha1-+OcRMvf/5uAaXJaXpMbz5I1cyBk=" + }, "buffer-from": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz", @@ -2760,6 +2894,17 @@ "integrity": "sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI=", "optional": true }, + "duplexify": { + "version": "4.1.1", + "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-4.1.1.tgz", + "integrity": "sha512-DY3xVEmVHTv1wSzKNbwoU6nVjzI369Y6sPoqfYr0/xlx3IdX2n94xIszTcjPO8W8ZIv0Wb0PXNcjuZyT4wiICA==", + "requires": { + "end-of-stream": "^1.4.1", + "inherits": "^2.0.3", + "readable-stream": "^3.1.1", + "stream-shift": "^1.0.0" + } + }, "ecc-jsbn": { "version": "0.1.2", "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz", @@ -2769,6 +2914,14 @@ "safer-buffer": "^2.1.0" } }, + "ecdsa-sig-formatter": { + "version": "1.0.11", + "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz", + "integrity": "sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==", + "requires": { + "safe-buffer": "^5.0.1" + } + }, "ee-first": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz", @@ -2853,7 +3006,6 @@ "version": "1.4.4", "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz", "integrity": 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