| 1 | const fs = require('fs')
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| 2 | const crypto = require('crypto')
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| 3 |
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| 4 | function cipherProcessor (exercise) {
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| 5 | exercise.addSetup(function (mode, callback) {
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| 6 | const { algorithm, key, iv } = this.cipherArgs
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| 7 |
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| 8 | this.submissionArgs = this.submissionArgs.concat(this.execArgs)
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| 9 | this.solutionArgs = this.solutionArgs.concat(this.execArgs)
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| 10 |
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| 11 | this.submissionCipher = crypto.createCipheriv(algorithm, key, iv)
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| 12 | this.solutionCipher = crypto.createCipheriv(algorithm, key, iv)
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| 13 |
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| 14 | process.nextTick(callback)
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| 15 | })
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| 16 |
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| 17 | exercise.addProcessor(function (mode, callback) {
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| 18 | fs.createReadStream(this.inputFilePath).pipe(this.submissionCipher).pipe(this.submissionChild.stdin)
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| 19 |
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| 20 | if (mode === 'verify') {
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| 21 | fs.createReadStream(this.inputFilePath).pipe(this.solutionCipher).pipe(this.solutionChild.stdin)
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| 22 | }
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| 23 |
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| 24 | process.nextTick(callback)
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| 25 | })
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| 26 |
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| 27 | return exercise
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| 28 | }
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| 29 |
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| 30 | module.exports = cipherProcessor
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