1 | #!/usr/bin/env node
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2 |
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3 | 'use strict'
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4 |
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5 | var stdin = require('get-stdin')
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6 | var eccrypto = require('eccrypto')
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7 |
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8 | var command = process.argv[0]
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9 | var script = process.argv[1]
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10 | var public_key = process.argv[2]
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11 | var message = process.argv[3]
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12 |
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13 | var pk, m
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14 |
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15 | stdin.buffer().then(function(s) {
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16 |
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17 | if (!s.length && typeof message === 'undefined') {
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18 | return process.stdout.write(JSON.stringify({
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19 | error: 'public key or message not given'
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20 | }), function() {
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21 | process.exit(1)
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22 | })
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23 | }
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24 |
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25 | m = s || message
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26 |
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27 | if (!public_key) {
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28 | return process.stdout.write(JSON.stringify({
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29 | error: 'public key or message not given'
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30 | }), function() {
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31 | process.exit(1)
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32 | })
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33 | }
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34 |
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35 | try {
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36 | pk = Buffer(public_key, 'hex')
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37 | } catch (err) {
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38 | return process.stdout.write(JSON.stringify({
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39 | error: 'public key is not a hexadecimal string'
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40 | }), function() {
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41 | process.exit(1)
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42 | })
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43 | }
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44 |
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45 | return eccrypto.encrypt(pk, m)
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46 |
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47 | }).then(function(encrypted) {
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48 | process.stdout.write(JSON.stringify({
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49 | iv: encrypted.iv.toString('hex'),
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50 | ephemPublicKey: encrypted.ephemPublicKey.toString('hex'),
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51 | ciphertext: encrypted.ciphertext.toString('hex'),
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52 | mac: encrypted.mac.toString('hex')
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53 | }), function() {
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54 | process.exit(0)
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55 | })
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56 | }).catch(function(err) {
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57 | process.stdout.write(JSON.stringify({
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58 | eccrypto_error: JSON.stringify(err)
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59 | }), function() {
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60 | process.exit(1)
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61 | })
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62 | })
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