From 29d14f553d622b51e11ba6087e44fec9deaba098 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sat, 18 Feb 2023 21:16:59 +0000 Subject: [PATCH 01/16] Install nodemon --- server/package-lock.json | 574 ++++++++++++++++++++++++++++++++++++++- server/package.json | 5 +- 2 files changed, 576 insertions(+), 3 deletions(-) diff --git a/server/package-lock.json b/server/package-lock.json index 612c6e2d..8ef3f612 100644 --- a/server/package-lock.json +++ b/server/package-lock.json @@ -10,9 +10,15 @@ "license": "ISC", "dependencies": { "cors": "^2.8.5", - "express": "^4.18.1" + "express": "^4.18.1", + "nodemon": "^2.0.20" } }, + "node_modules/abbrev": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz", + "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==" + }, "node_modules/accepts": { "version": "1.3.8", "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz", @@ -25,11 +31,36 @@ "node": ">= 0.6" } }, + "node_modules/anymatch": { + "version": "3.1.3", + "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz", + "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==", + "dependencies": { + "normalize-path": "^3.0.0", + "picomatch": "^2.0.4" + }, + "engines": { + "node": ">= 8" + } + }, "node_modules/array-flatten": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz", "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==" }, + "node_modules/balanced-match": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", + "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==" + }, + "node_modules/binary-extensions": { + "version": "2.2.0", + "resolved": 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+ "resolved": "https://registry.npmjs.org/pstree.remy/-/pstree.remy-1.1.8.tgz", + "integrity": "sha512-77DZwxQmxKnu3aR542U+X8FypNzbfJ+C5XQDk3uWjWxn6151aIMGthWYRXTqT1E5oJvg+ljaa2OJi+VfvCOQ8w==" + }, "qs": { "version": "6.10.3", "resolved": "https://registry.npmjs.org/qs/-/qs-6.10.3.tgz", @@ -952,6 +1467,14 @@ "unpipe": "1.0.0" } }, + "readdirp": { + "version": "3.6.0", + "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz", + "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==", + "requires": { + "picomatch": "^2.2.1" + } + }, "safe-buffer": { "version": "5.2.1", "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz", @@ -962,6 +1485,11 @@ "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz", "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==" }, + "semver": { + "version": "5.7.1", + "resolved": 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"integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ==" }, + "supports-color": { + "version": "5.5.0", + "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz", + "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==", + "requires": { + "has-flag": "^3.0.0" + } + }, + "to-regex-range": { + "version": "5.0.1", + "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz", + "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==", + "requires": { + "is-number": "^7.0.0" + } + }, "toidentifier": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz", "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==" }, + "touch": { + "version": "3.1.0", + "resolved": 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"keywords": [], "author": "", "license": "ISC", "dependencies": { "cors": "^2.8.5", - "express": "^4.18.1" + "express": "^4.18.1", + "nodemon": "^2.0.20" } } From 184b5a000c0bd0bfb6bef17a316ad7a8c790c645 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sat, 18 Feb 2023 21:28:24 +0000 Subject: [PATCH 02/16] Install ethereum-cryptography --- client/package-lock.json | 121 +++++++++++++++++++++++++++++++++++++++ client/package.json | 1 + server/generateKeys.js | 0 server/package-lock.json | 121 +++++++++++++++++++++++++++++++++++++++ server/package.json | 1 + 5 files changed, 244 insertions(+) create mode 100644 server/generateKeys.js diff --git a/client/package-lock.json b/client/package-lock.json index 3cf61093..bc4ee11e 100644 --- a/client/package-lock.json +++ b/client/package-lock.json @@ -9,6 +9,7 @@ "version": "0.0.0", "dependencies": { "axios": "^0.27.2", + "ethereum-cryptography": "^1.2.0", "react": "^18.2.0", "react-dom": "^18.2.0" }, @@ -517,6 +518,70 @@ "@jridgewell/sourcemap-codec": "^1.4.10" } }, + "node_modules/@noble/hashes": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.2.0.tgz", + "integrity": "sha512-FZfhjEDbT5GRswV3C6uvLPHMiVD6lQBmpoX5+eSiPaMTXte/IKqI5dykDxzZB/WBeK/CDuQRBWarPdi3FNY2zQ==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@noble/secp256k1": { + "version": "1.7.1", + "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.7.1.tgz", + "integrity": "sha512-hOUk6AyBFmqVrv7k5WAw/LpszxVbj9gGN4JRkIX52fdFAj1UA61KXmZDvqVEm+pOyec3+fIeZB02LYa/pWOArw==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@scure/base": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/@scure/base/-/base-1.1.1.tgz", + "integrity": "sha512-ZxOhsSyxYwLJj3pLZCefNitxsj093tb2vq90mp2txoYeBqbcjDjqFhyM8eUjq/uFm6zJ+mUuqxlS2FkuSY1MTA==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@scure/bip32": { + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.1.5.tgz", + "integrity": "sha512-XyNh1rB0SkEqd3tXcXMi+Xe1fvg+kUIcoRIEujP1Jgv7DqW2r9lg3Ah0NkFaCs9sTkQAQA8kw7xiRXzENi9Rtw==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ], + "dependencies": { + "@noble/hashes": "~1.2.0", + "@noble/secp256k1": "~1.7.0", + "@scure/base": "~1.1.0" + } + }, + "node_modules/@scure/bip39": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.1.tgz", + "integrity": "sha512-t+wDck2rVkh65Hmv280fYdVdY25J9YeEUIgn2LG1WM6gxFkGzcksoDiUkWVpVp3Oex9xGC68JU2dSbUfwZ2jPg==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ], + "dependencies": { + "@noble/hashes": "~1.2.0", + "@scure/base": "~1.1.0" + } + }, "node_modules/@types/prop-types": { "version": "15.7.5", "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.5.tgz", @@ -1178,6 +1243,17 @@ "node": ">=0.8.0" } }, + "node_modules/ethereum-cryptography": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.2.0.tgz", + "integrity": "sha512-6yFQC9b5ug6/17CQpCyE3k9eKBMdhyVjzUy1WkiuY/E4vj/SXDBbCw8QEIaXqf0Mf2SnY6RmpDcwlUmBSS0EJw==", + "dependencies": { + "@noble/hashes": "1.2.0", + "@noble/secp256k1": "1.7.1", + "@scure/bip32": "1.1.5", + "@scure/bip39": "1.1.1" + } + }, "node_modules/fill-range": { "version": "7.0.1", "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz", @@ -2107,6 +2183,40 @@ "@jridgewell/sourcemap-codec": "^1.4.10" } }, + "@noble/hashes": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.2.0.tgz", + "integrity": "sha512-FZfhjEDbT5GRswV3C6uvLPHMiVD6lQBmpoX5+eSiPaMTXte/IKqI5dykDxzZB/WBeK/CDuQRBWarPdi3FNY2zQ==" + 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a/client/package.json b/client/package.json index f662261b..493079cb 100644 --- a/client/package.json +++ b/client/package.json @@ -10,6 +10,7 @@ }, "dependencies": { "axios": "^0.27.2", + "ethereum-cryptography": "^1.2.0", "react": "^18.2.0", "react-dom": "^18.2.0" }, diff --git a/server/generateKeys.js b/server/generateKeys.js new file mode 100644 index 00000000..e69de29b diff --git a/server/package-lock.json b/server/package-lock.json index 8ef3f612..befd8e9c 100644 --- a/server/package-lock.json +++ b/server/package-lock.json @@ -10,10 +10,75 @@ "license": "ISC", "dependencies": { "cors": "^2.8.5", + "ethereum-cryptography": "^1.2.0", "express": "^4.18.1", "nodemon": "^2.0.20" } }, + "node_modules/@noble/hashes": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.2.0.tgz", + "integrity": "sha512-FZfhjEDbT5GRswV3C6uvLPHMiVD6lQBmpoX5+eSiPaMTXte/IKqI5dykDxzZB/WBeK/CDuQRBWarPdi3FNY2zQ==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@noble/secp256k1": { + "version": "1.7.1", + "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.7.1.tgz", + "integrity": "sha512-hOUk6AyBFmqVrv7k5WAw/LpszxVbj9gGN4JRkIX52fdFAj1UA61KXmZDvqVEm+pOyec3+fIeZB02LYa/pWOArw==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@scure/base": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/@scure/base/-/base-1.1.1.tgz", + "integrity": "sha512-ZxOhsSyxYwLJj3pLZCefNitxsj093tb2vq90mp2txoYeBqbcjDjqFhyM8eUjq/uFm6zJ+mUuqxlS2FkuSY1MTA==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ] + }, + "node_modules/@scure/bip32": { + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.1.5.tgz", + "integrity": "sha512-XyNh1rB0SkEqd3tXcXMi+Xe1fvg+kUIcoRIEujP1Jgv7DqW2r9lg3Ah0NkFaCs9sTkQAQA8kw7xiRXzENi9Rtw==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ], + "dependencies": { + "@noble/hashes": "~1.2.0", + "@noble/secp256k1": "~1.7.0", + "@scure/base": "~1.1.0" + } + }, + "node_modules/@scure/bip39": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.1.tgz", + "integrity": "sha512-t+wDck2rVkh65Hmv280fYdVdY25J9YeEUIgn2LG1WM6gxFkGzcksoDiUkWVpVp3Oex9xGC68JU2dSbUfwZ2jPg==", + "funding": [ + { + "type": "individual", + "url": "https://paulmillr.com/funding/" + } + ], + "dependencies": { + "@noble/hashes": "~1.2.0", + "@scure/base": "~1.1.0" + } + }, "node_modules/abbrev": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz", @@ -250,6 +315,17 @@ "node": ">= 0.6" } }, + "node_modules/ethereum-cryptography": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.2.0.tgz", + "integrity": 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"https://registry.npmjs.org/etag/-/etag-1.8.1.tgz", "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==" }, + "ethereum-cryptography": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.2.0.tgz", + "integrity": "sha512-6yFQC9b5ug6/17CQpCyE3k9eKBMdhyVjzUy1WkiuY/E4vj/SXDBbCw8QEIaXqf0Mf2SnY6RmpDcwlUmBSS0EJw==", + "requires": { + "@noble/hashes": "1.2.0", + "@noble/secp256k1": "1.7.1", + "@scure/bip32": "1.1.5", + "@scure/bip39": "1.1.1" + } + }, "express": { "version": "4.18.1", "resolved": "https://registry.npmjs.org/express/-/express-4.18.1.tgz", diff --git a/server/package.json b/server/package.json index 2d16f7e4..f965c749 100644 --- a/server/package.json +++ b/server/package.json @@ -11,6 +11,7 @@ "license": "ISC", "dependencies": { "cors": "^2.8.5", + "ethereum-cryptography": "^1.2.0", "express": "^4.18.1", "nodemon": "^2.0.20" } From 3b6d23b94ddb98c6d750c09b3f93f7f4d51b1e54 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sat, 18 Feb 2023 21:49:03 +0000 Subject: [PATCH 03/16] Use the public Key, use the message and signature as request --- server/generateKeys.js | 0 server/index.js | 26 +++++++++++++++----------- server/scripts/generateKeys.js | 8 ++++++++ 3 files changed, 23 insertions(+), 11 deletions(-) delete mode 100644 server/generateKeys.js create mode 100644 server/scripts/generateKeys.js diff --git a/server/generateKeys.js b/server/generateKeys.js deleted file mode 100644 index e69de29b..00000000 diff --git a/server/index.js b/server/index.js index 3dbd053b..16d1d432 100644 --- a/server/index.js +++ b/server/index.js @@ -6,30 +6,34 @@ const port = 3042; app.use(cors()); app.use(express.json()); -const balances = { - "0x1": 100, - "0x2": 50, - "0x3": 75, -}; +const balances = new Map([ + ["044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06", 100], + ["0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af", 50], + ["04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a", 75] +]); app.get("/balance/:address", (req, res) => { const { address } = req.params; - const balance = balances[address] || 0; + const balance = balances.get(address) || 0; res.send({ balance }); }); app.post("/send", (req, res) => { - const { sender, recipient, amount } = req.body; + const { message, signature } = req.body; + const { recipient, amount } = message; + + const pubKey = crypto.signatureToPubKey(message, signature); + const sender = crypto.pubKeyToAddress(pubKey); setInitialBalance(sender); setInitialBalance(recipient); - if (balances[sender] < amount) { + if (balances.get(sender) < amount) { res.status(400).send({ message: "Not enough funds!" }); } else { - balances[sender] -= amount; - balances[recipient] += amount; - res.send({ balance: balances[sender] }); + balances.get(sender, balances.get(sender) - amount); + balances.get(recipient, balances.get(recipient) + amount); + res.send({ balance: balances.get(sender) }); } }); diff --git a/server/scripts/generateKeys.js b/server/scripts/generateKeys.js new file mode 100644 index 00000000..1efe8e72 --- /dev/null +++ b/server/scripts/generateKeys.js @@ -0,0 +1,8 @@ +const secp = require("ethereum-cryptography/secp256k1"); +const { toHex } = require("ethereum-cryptography/utils"); + +const privateKey = toHex(secp.utils.randomPrivateKey()); +const publicKey = toHex(secp.getPublicKey(privateKey)); + +console.log("Private key:", privateKey); +console.log("Public key:", publicKey); \ No newline at end of file From 842497287a2fe6525c19eb6f08b4b9f6cc1d12a7 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 01:33:45 +0300 Subject: [PATCH 04/16] Set the environment --- client/yarn.lock | 947 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 947 insertions(+) create mode 100644 client/yarn.lock diff --git a/client/yarn.lock b/client/yarn.lock new file mode 100644 index 00000000..142e8747 --- /dev/null +++ b/client/yarn.lock @@ -0,0 +1,947 @@ +# THIS IS AN AUTOGENERATED FILE. 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00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 01:36:00 +0300 Subject: [PATCH 05/16] Use public key --- server/index.js | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-) diff --git a/server/index.js b/server/index.js index 16d1d432..83706517 100644 --- a/server/index.js +++ b/server/index.js @@ -6,34 +6,30 @@ const port = 3042; app.use(cors()); app.use(express.json()); -const balances = new Map([ - ["044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06", 100], - ["0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af", 50], - ["04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a", 75] -]); +const balances = { + "04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a": 100, + "0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af": 50, + "044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06": 75, +}; app.get("/balance/:address", (req, res) => { const { address } = req.params; - const balance = balances.get(address) || 0; + const balance = balances[address] || 0; res.send({ balance }); }); app.post("/send", (req, res) => { - const { message, signature } = req.body; - const { recipient, amount } = message; - - const pubKey = crypto.signatureToPubKey(message, signature); - const sender = crypto.pubKeyToAddress(pubKey); + const { sender, recipient, amount } = req.body; setInitialBalance(sender); setInitialBalance(recipient); - if (balances.get(sender) < amount) { + if (balances[sender] < amount) { res.status(400).send({ message: "Not enough funds!" }); } else { - balances.get(sender, balances.get(sender) - amount); - balances.get(recipient, balances.get(recipient) + amount); - res.send({ balance: balances.get(sender) }); + balances[sender] -= amount; + balances[recipient] += amount; + res.send({ balance: balances[sender] }); } }); @@ -46,3 +42,12 @@ function setInitialBalance(address) { balances[address] = 0; } } + +// Private key: 355db4e0530bc99783775c2c1bfd198fc843e9e17a3313d69c71b45253ef5f77 +// Public key: 04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a + +// Private key: be6788c3716419d0028a3f8003c55ba36c0230b1624fc5d6f4841e3b8d0b1b9b +// Public key: 0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af + +// Private key: 49beed66929c4e2231e3b4a2af6ed32f3c597002128dfa691bc3c0555ba4239d +// Public key: 044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06 \ No newline at end of file From 1b3f29435dee07ed5d3269efe0a4b5bb29f19723 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 01:36:25 +0300 Subject: [PATCH 06/16] Create a hash message --- server/scripts/digitalSignature.js | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 server/scripts/digitalSignature.js diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js new file mode 100644 index 00000000..c8405b9e --- /dev/null +++ b/server/scripts/digitalSignature.js @@ -0,0 +1,12 @@ +const secp = require('ethereum-cryptography/secp256k1'); +const { keccak256 } = require("ethereum-cryptography/keccak"); +const { toHex, utf8ToBytes } = require('ethereum-cryptography/utils'); + +function hashMessage(message) { + let bytes = utf8ToBytes(message); + let hash = keccak256(bytes); + return hash; +} + + + From 253bd1b009f0f44f679c903de198ca1f32658d39 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 22:12:47 +0300 Subject: [PATCH 07/16] Hash the message --- server/scripts/digitalSignature.js | 10 +- server/yarn.lock | 673 +++++++++++++++++++++++++++++ 2 files changed, 676 insertions(+), 7 deletions(-) create mode 100644 server/yarn.lock diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js index c8405b9e..5d2d8cea 100644 --- a/server/scripts/digitalSignature.js +++ b/server/scripts/digitalSignature.js @@ -1,12 +1,8 @@ -const secp = require('ethereum-cryptography/secp256k1'); +const secp = require("ethereum-cryptography/secp256k1"); const { keccak256 } = require("ethereum-cryptography/keccak"); -const { toHex, utf8ToBytes } = require('ethereum-cryptography/utils'); +const { hexToBytes, toHex } = require("ethereum-cryptography/utils"); -function hashMessage(message) { - let bytes = utf8ToBytes(message); - let hash = keccak256(bytes); - return hash; -} +const hashMessage = (message) => keccak256(Uint8Array.from(message)); diff --git a/server/yarn.lock b/server/yarn.lock new file mode 100644 index 00000000..b107d8ba --- /dev/null +++ b/server/yarn.lock @@ -0,0 +1,673 @@ +# THIS IS AN AUTOGENERATED FILE. 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diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js index 5d2d8cea..ab6adb6e 100644 --- a/server/scripts/digitalSignature.js +++ b/server/scripts/digitalSignature.js @@ -4,5 +4,8 @@ const { hexToBytes, toHex } = require("ethereum-cryptography/utils"); const hashMessage = (message) => keccak256(Uint8Array.from(message)); - +const pubKeyToAddress = (pubKey) => { + const hash = keccak256(pubKey.slice(1)); + return toHex(hash.slice(-20)).toUpperCase(); +}; From dad5b42bb5595f588682119fc9e0090b616d86a7 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 22:14:45 +0300 Subject: [PATCH 09/16] signature the signature in hexa format with the recovery bit as the first byte. --- server/scripts/digitalSignature.js | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js index ab6adb6e..5459fb78 100644 --- a/server/scripts/digitalSignature.js +++ b/server/scripts/digitalSignature.js @@ -9,3 +9,11 @@ const pubKeyToAddress = (pubKey) => { return toHex(hash.slice(-20)).toUpperCase(); }; +const signatureToPubKey = (message, signature) => { + const hash = hashMessage(message); + const fullSignatureBytes = hexToBytes(signature); + const recoveryBit = fullSignatureBytes[0]; + const signatureBytes = fullSignatureBytes.slice(1); + + return secp.recoverPublicKey(hash, signatureBytes, recoveryBit); +}; \ No newline at end of file From c3c95253dc499b43829074b9d3ce2e58dc17383e Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Sun, 19 Feb 2023 22:16:10 +0300 Subject: [PATCH 10/16] import the hashMessage, publkeyToAddress --- server/scripts/digitalSignature.js | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js index 5459fb78..b42948f6 100644 --- a/server/scripts/digitalSignature.js +++ b/server/scripts/digitalSignature.js @@ -16,4 +16,10 @@ const signatureToPubKey = (message, signature) => { const signatureBytes = fullSignatureBytes.slice(1); return secp.recoverPublicKey(hash, signatureBytes, recoveryBit); +}; + +module.exports = { + hashMessage, + pubKeyToAddress, + signatureToPubKey, }; \ No newline at end of file From 9f0f9a7b57caa8a8da625750ea85d7a8bb045ff7 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:05:24 +0300 Subject: [PATCH 11/16] Install some dependencies --- client/package-lock.json | 92 ++++++++++++++++++++-------------------- client/package.json | 2 +- server/.gitignore | 3 +- server/package-lock.json | 90 +++++++++++++++++++-------------------- server/package.json | 2 +- 5 files changed, 95 insertions(+), 94 deletions(-) diff --git a/client/package-lock.json b/client/package-lock.json index bc4ee11e..a401f485 100644 --- a/client/package-lock.json +++ b/client/package-lock.json @@ -9,7 +9,7 @@ "version": "0.0.0", "dependencies": { "axios": "^0.27.2", - "ethereum-cryptography": 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"@noble/hashes": "~1.2.0", - "@noble/secp256k1": "~1.7.0", + "@noble/hashes": "~1.1.1", + "@noble/secp256k1": "~1.6.0", "@scure/base": "~1.1.0" } }, "node_modules/@scure/bip39": { - "version": "1.1.1", - "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.1.tgz", - "integrity": "sha512-t+wDck2rVkh65Hmv280fYdVdY25J9YeEUIgn2LG1WM6gxFkGzcksoDiUkWVpVp3Oex9xGC68JU2dSbUfwZ2jPg==", + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.0.tgz", + "integrity": "sha512-pwrPOS16VeTKg98dYXQyIjJEcWfz7/1YJIwxUEPFfQPtc86Ym/1sVgQ2RLoD43AazMk2l/unK4ITySSpW2+82w==", "funding": [ { "type": "individual", @@ -75,7 +75,7 @@ } ], "dependencies": { - "@noble/hashes": "~1.2.0", + "@noble/hashes": "~1.1.1", "@scure/base": "~1.1.0" } }, @@ -316,14 +316,14 @@ } }, "node_modules/ethereum-cryptography": { - "version": "1.2.0", - "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.2.0.tgz", - "integrity": 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"sha512-KYRCASVTv6aeUi1tsF8/vpyR7zpfs3FUzy2Jqm+MU+LmUKhQ0y2FpfwqkCcxSg2ua4GALJd8k2R76WxwZGbQpA==" }, "@noble/secp256k1": { - "version": "1.7.1", - "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.7.1.tgz", - "integrity": "sha512-hOUk6AyBFmqVrv7k5WAw/LpszxVbj9gGN4JRkIX52fdFAj1UA61KXmZDvqVEm+pOyec3+fIeZB02LYa/pWOArw==" + "version": "1.6.3", + "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.6.3.tgz", + "integrity": "sha512-T04e4iTurVy7I8Sw4+c5OSN9/RkPlo1uKxAomtxQNLq8j1uPAqnsqG1bqvY3Jv7c13gyr6dui0zmh/I3+f/JaQ==" }, "@scure/base": { "version": "1.1.1", @@ -1036,21 +1036,21 @@ "integrity": "sha512-ZxOhsSyxYwLJj3pLZCefNitxsj093tb2vq90mp2txoYeBqbcjDjqFhyM8eUjq/uFm6zJ+mUuqxlS2FkuSY1MTA==" }, "@scure/bip32": { - "version": "1.1.5", - "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.1.5.tgz", - "integrity": "sha512-XyNh1rB0SkEqd3tXcXMi+Xe1fvg+kUIcoRIEujP1Jgv7DqW2r9lg3Ah0NkFaCs9sTkQAQA8kw7xiRXzENi9Rtw==", + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.1.0.tgz", + "integrity": "sha512-ftTW3kKX54YXLCxH6BB7oEEoJfoE2pIgw7MINKAs5PsS6nqKPuKk1haTF/EuHmYqG330t5GSrdmtRuHaY1a62Q==", "requires": { - "@noble/hashes": "~1.2.0", - "@noble/secp256k1": "~1.7.0", + "@noble/hashes": "~1.1.1", + "@noble/secp256k1": "~1.6.0", "@scure/base": "~1.1.0" } }, "@scure/bip39": { - "version": "1.1.1", - "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.1.tgz", - "integrity": "sha512-t+wDck2rVkh65Hmv280fYdVdY25J9YeEUIgn2LG1WM6gxFkGzcksoDiUkWVpVp3Oex9xGC68JU2dSbUfwZ2jPg==", + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.0.tgz", + "integrity": "sha512-pwrPOS16VeTKg98dYXQyIjJEcWfz7/1YJIwxUEPFfQPtc86Ym/1sVgQ2RLoD43AazMk2l/unK4ITySSpW2+82w==", "requires": { - "@noble/hashes": "~1.2.0", + "@noble/hashes": "~1.1.1", "@scure/base": "~1.1.0" } }, @@ -1233,14 +1233,14 @@ "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==" }, "ethereum-cryptography": { - "version": "1.2.0", - "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.2.0.tgz", - "integrity": "sha512-6yFQC9b5ug6/17CQpCyE3k9eKBMdhyVjzUy1WkiuY/E4vj/SXDBbCw8QEIaXqf0Mf2SnY6RmpDcwlUmBSS0EJw==", + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.1.2.tgz", + "integrity": "sha512-XDSJlg4BD+hq9N2FjvotwUET9Tfxpxc3kWGE2AqUG5vcbeunnbImVk3cj6e/xT3phdW21mE8R5IugU4fspQDcQ==", "requires": { - "@noble/hashes": "1.2.0", - "@noble/secp256k1": "1.7.1", - "@scure/bip32": "1.1.5", - "@scure/bip39": "1.1.1" + "@noble/hashes": "1.1.2", + "@noble/secp256k1": "1.6.3", + "@scure/bip32": "1.1.0", + "@scure/bip39": "1.1.0" } }, "express": { diff --git a/server/package.json b/server/package.json index f965c749..58cf6d4e 100644 --- a/server/package.json +++ b/server/package.json @@ -11,7 +11,7 @@ "license": "ISC", "dependencies": { "cors": "^2.8.5", - "ethereum-cryptography": "^1.2.0", + "ethereum-cryptography": "^1.1.2", "express": "^4.18.1", "nodemon": "^2.0.20" } From 61532d561efd5217737083089b6d5b5d8dc02863 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:08:13 +0300 Subject: [PATCH 12/16] Generate private key, public key and Address --- server/scripts/generate.js | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 server/scripts/generate.js diff --git a/server/scripts/generate.js b/server/scripts/generate.js new file mode 100644 index 00000000..0370d007 --- /dev/null +++ b/server/scripts/generate.js @@ -0,0 +1,14 @@ +const secp = require("ethereum-cryptography/secp256k1"); +const { toHex } = require("ethereum-cryptography/utils"); +const { keccak256 } = require("ethereum-cryptography/keccak"); + +const privateKey = secp.utils.randomPrivateKey(); +console.log('private key:', toHex(privateKey)); + +const publicKey = secp.getPublicKey(privateKey); +console.log('public key:', toHex(publicKey)) +function getAddress(publickey){ + return keccak256(publicKey.slice(1)).slice(-20); +} + +console.log('Address:', toHex(getAddress(publicKey))); \ No newline at end of file From 29d7b5ced500901071175ced827554d52c28a005 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:09:49 +0300 Subject: [PATCH 13/16] Create hashMessage, signAddress and recoverKey --- client/src/crypto.js | 24 ++++++++++++++ server/index.js | 50 ++++++++++++++++++------------ server/scripts/digitalSignature.js | 25 +++++++-------- server/scripts/hashToSignature.js | 26 ++++++++++++++++ 4 files changed, 91 insertions(+), 34 deletions(-) create mode 100644 client/src/crypto.js create mode 100644 server/scripts/hashToSignature.js diff --git a/client/src/crypto.js b/client/src/crypto.js new file mode 100644 index 00000000..05a3a233 --- /dev/null +++ b/client/src/crypto.js @@ -0,0 +1,24 @@ +// const secp = require("ethereum-cryptography/secp256k1"); +import secp from 'ethereum-cryptography/secp256k1'; +import { keccak256 } from 'ethereum-cryptography/keccak'; +import { utf8ToBytes } from 'ethereum-cryptography/utils' +// const { keccak256 } = require("ethereum-cryptography/keccak"); +// const { utf8ToBytes } = require("ethereum-cryptography/utils"); + +function hashMessage(message) { + return keccak256(utf8ToBytes(message)); +} + +function signMessage(message, privateKey) { + const hash = hashMessage(message); + const signature = secp.sign(hash, privateKey, { recovered: true }); + return signature; +} + +function recoverKey(message, signature, recoveryBit) { + const hash = hashMessage(message); + const publicKey = secp.recoverPublicKey(hash, signature, recoveryBit); + return publicKey; +} + +export { hashMessage, signMessage, recoverKey }; diff --git a/server/index.js b/server/index.js index 83706517..96bc0f0e 100644 --- a/server/index.js +++ b/server/index.js @@ -7,10 +7,11 @@ app.use(cors()); app.use(express.json()); const balances = { - "04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a": 100, - "0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af": 50, - "044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06": 75, + "a17dc0fa60592e4c7ef410dde0b38dc0e75814e3": 100, + "bc6a84b7dce3e64a0b4c29e74184735192157d29": 50, + "c6f9462fe05aa3057f171b8049d1ff846ea6620b": 75, }; + app.get("/balance/:address", (req, res) => { const { address } = req.params; @@ -19,17 +20,26 @@ app.get("/balance/:address", (req, res) => { }); app.post("/send", (req, res) => { - const { sender, recipient, amount } = req.body; + // TODO: signature and message + const { sender, recipient, amount, sign, recoveryBit } = req.body; + const message = {sender, amount,recipient}; + const messageHash = hashMessage(JSON.stringify(message)); + const recovered = secp.recoverPublicKey(messageHash, hexToBytes(sign), recoveryBit); + + const addressOfSign = toHex(addressFromPublicKey(recovered)); + console.log('addressOfSign:',addressOfSign); setInitialBalance(sender); setInitialBalance(recipient); - - if (balances[sender] < amount) { - res.status(400).send({ message: "Not enough funds!" }); - } else { - balances[sender] -= amount; - balances[recipient] += amount; - res.send({ balance: balances[sender] }); + if(sender!==addressOfSign){ + if (balances[sender] < amount) { + res.status(400).send({ message: "Not enough funds!" }); + } else { + console.log("Public Key Verified"); + balances[sender] -= amount; + balances[recipient] += amount; + res.send({ balance: balances[sender] }); + } } }); @@ -42,12 +52,12 @@ function setInitialBalance(address) { balances[address] = 0; } } - -// Private key: 355db4e0530bc99783775c2c1bfd198fc843e9e17a3313d69c71b45253ef5f77 -// Public key: 04b7e289c022835d415569488c8c072a622aa1cbf5d956efea6ebcf41d83fe19b05213c6ef3c408517625605c244460fb30b6d582b48c629a7fa32c91a6d30547a - -// Private key: be6788c3716419d0028a3f8003c55ba36c0230b1624fc5d6f4841e3b8d0b1b9b -// Public key: 0415126b6b2df78427c07af6a8466aa839f19f7e5a4dfb6e745eea376ad095b58ccf52656cb505d6808ffb1d5300aba6f04569e1e1d5a9624d679346b10ad321af - -// Private key: 49beed66929c4e2231e3b4a2af6ed32f3c597002128dfa691bc3c0555ba4239d -// Public key: 044fb79348548c606f082cc2482187f577e9a39d9a4dfb5c14fec11eb10f9488b3692c11c66998f104c29aed1bfae24463e30f0f1d954760bcc0e4af01cd34cc06 \ No newline at end of file +function hashMessage(message) { + const bytes = utf8ToBytes(message); + return keccak256(bytes); +} +function addressFromPublicKey(publicKey){ + const addrBytes = publicKey.slice(1); + const hash = keccak256(addrBytes); + return hash.slice(-20); +} \ No newline at end of file diff --git a/server/scripts/digitalSignature.js b/server/scripts/digitalSignature.js index b42948f6..cffe1845 100644 --- a/server/scripts/digitalSignature.js +++ b/server/scripts/digitalSignature.js @@ -2,24 +2,21 @@ const secp = require("ethereum-cryptography/secp256k1"); const { keccak256 } = require("ethereum-cryptography/keccak"); const { hexToBytes, toHex } = require("ethereum-cryptography/utils"); -const hashMessage = (message) => keccak256(Uint8Array.from(message)); +function hashMessage(message) { + return keccak256(utf8ToBytes(message)); +} -const pubKeyToAddress = (pubKey) => { - const hash = keccak256(pubKey.slice(1)); - return toHex(hash.slice(-20)).toUpperCase(); -}; +const signMessage = (message, privateKey) => { + return secp.sign(hashMessage(message), privateKey, { recovered: true }); +} -const signatureToPubKey = (message, signature) => { - const hash = hashMessage(message); - const fullSignatureBytes = hexToBytes(signature); - const recoveryBit = fullSignatureBytes[0]; - const signatureBytes = fullSignatureBytes.slice(1); +const recoverKey = (message, signature, recoveryBit) => { + return secp.recoverPublicKey(hashMessage(message), signature, recoveryBit); +} - return secp.recoverPublicKey(hash, signatureBytes, recoveryBit); -}; module.exports = { hashMessage, - pubKeyToAddress, - signatureToPubKey, + signMessage, + recoverKey, }; \ No newline at end of file diff --git a/server/scripts/hashToSignature.js b/server/scripts/hashToSignature.js new file mode 100644 index 00000000..20953edf --- /dev/null +++ b/server/scripts/hashToSignature.js @@ -0,0 +1,26 @@ +const { keccak256 } = require("ethereum-cryptography/keccak"); +const { utf8ToBytes, toHex } = require("ethereum-cryptography/utils"); +const secp = require("ethereum-cryptography/secp256k1"); + +(async () => { + + const PRIVATE_KEY = "77484d45ecfe34287a9d88a4f8ec3eb9cd92ce55dc3a9ba4be57ee4126c32e89" + + let message = { + from: "b83ab85e1fbe71c7e7643df5de9f7cc6be4f96da", + to: "c42da13bc0dcb20f3fb7af2433dfe10641721501", + amount: 10 + } + console.log("Mesage:", message); + + const messageHash = toHex(keccak256(utf8ToBytes(JSON.stringify(message)))); + console.log("Message Hash:", messageHash); + + const [signature, recoveryBit] = await secp.sign(messageHash, PRIVATE_KEY, { recovered: true }); + console.log("Signature:", toHex(signature)); + console.log("Recovery Bit:", recoveryBit); + + const publicKey = toHex(secp.recoverPublicKey(messageHash, signature, recoveryBit)); + console.log("Public Key:", publicKey); + +})(); \ No newline at end of file From ae451d27992c6fa7fb2ac36bee8549952f0c9418 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:11:31 +0300 Subject: [PATCH 14/16] Import ethereum-cryptography and display balance using private key --- client/src/Wallet.jsx | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/client/src/Wallet.jsx b/client/src/Wallet.jsx index 8dde5242..3e2def2f 100644 --- a/client/src/Wallet.jsx +++ b/client/src/Wallet.jsx @@ -1,8 +1,13 @@ +import * as secp from "ethereum-cryptography/secp256k1" +import {toHex} from "ethereum-cryptography/utils" +import {keccak256} from "ethereum-cryptography/keccak" import server from "./server"; -function Wallet({ address, setAddress, balance, setBalance }) { +function Wallet({ address, setAddress, balance, setBalance, privateKey, setPrivateKey }) { async function onChange(evt) { - const address = evt.target.value; + const privateKey = evt.target.value; + setPrivateKey(privateKey); + const address = toHex(keccak256((secp.getPublicKey(privateKey)).slice(1)).slice(-20)); setAddress(address); if (address) { const { @@ -19,10 +24,12 @@ function Wallet({ address, setAddress, balance, setBalance }) {

Your Wallet

- +
+ Address: {address} +
Balance: {balance}
); From c242b1cc21f042a03ae783e8a82c90cf115ff7c5 Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:12:11 +0300 Subject: [PATCH 15/16] Display the signature and recoverBit --- client/src/Transfer.jsx | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/client/src/Transfer.jsx b/client/src/Transfer.jsx index 7dac2bef..2756d8b6 100644 --- a/client/src/Transfer.jsx +++ b/client/src/Transfer.jsx @@ -1,15 +1,34 @@ import { useState } from "react"; import server from "./server"; +import * as secp from "ethereum-cryptography/secp256k1" +import { keccak256 } from "ethereum-cryptography/keccak"; +import { toHex, utf8ToBytes } from "ethereum-cryptography/utils"; -function Transfer({ address, setBalance }) { +function Transfer({ address, setBalance, privateKey }) { const [sendAmount, setSendAmount] = useState(""); const [recipient, setRecipient] = useState(""); + const [signature, setSignature] = useState(""); + const [recoveryBit, setRecoveryBit] = useState(""); const setValue = (setter) => (evt) => setter(evt.target.value); - + function hashMessage(message){ + return toHex(keccak256(utf8ToBytes(message))); + } async function transfer(evt) { evt.preventDefault(); + const message = { + address, sendAmount, recipient, + }; + + const hash = hashMessage(JSON.stringify(message)); + const [sig, recoveryBit] = await secp.sign(hash, privateKey, {recovered: true}); + message.sign = toHex(sig); + message.recoveryBit = recoveryBit; + setSignature(toHex(sig)); + setRecoveryBit(recoveryBit); + console.log('request:', message); + try { const { data: { balance }, @@ -45,7 +64,12 @@ function Transfer({ address, setBalance }) { onChange={setValue(setRecipient)} > - +
+ Signature: {signature} +
+
+ Recovery Bit: {recoveryBit} +
); From fb5b809addae3fd5b0f769f3b69749c7c388221a Mon Sep 17 00:00:00 2001 From: Arnaud Bandonkeye Date: Mon, 20 Feb 2023 22:12:42 +0300 Subject: [PATCH 16/16] Display the signature --- client/src/App.jsx | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/client/src/App.jsx b/client/src/App.jsx index 7254c1fa..a491c8d7 100644 --- a/client/src/App.jsx +++ b/client/src/App.jsx @@ -6,16 +6,21 @@ import { useState } from "react"; function App() { const [balance, setBalance] = useState(0); const [address, setAddress] = useState(""); - + const [privateKey,setPrivateKey] = useState(""); + const [signature, setSignature] = useState(""); return (
- +
); }