17 lines
451 B
JavaScript
Executable file
17 lines
451 B
JavaScript
Executable file
#!/usr/bin/env node
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'use strict'
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const hkdf = require('futoin-hkdf')
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const label = process.argv[2]
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const masterSeedHex = process.argv[3].trim()
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if (process.argv.length !== 4) {
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console.error('hdkf <label> <masterKey>')
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console.error('masterKey should be in hex encoding.')
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process.exit(3)
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}
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const masterSeed = Buffer.from(masterSeedHex, 'hex')
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console.log(hkdf(masterSeed, 32, { salt: 'lamassu-server-salt', info: label }).toString('hex'))
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