37 lines
1020 B
JavaScript
37 lines
1020 B
JavaScript
const { crypto_scalarmult_base } = require('./crypto_scalarmult')
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const { crypto_generichash } = require('./crypto_generichash')
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const { randombytes_buf } = require('./randombytes')
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var crypto_kx_SEEDBYTES = 32
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var crypto_kx_PUBLICKEYBYTES = 32
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var crypto_kx_SECRETKEYBYTES = 32
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function crypto_kx_keypair (pk, sk) {
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check(pk, crypto_kx_PUBLICKEYBYTES)
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check(sk, crypto_kx_SECRETKEYBYTES)
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randombytes_buf(sk, crypto_kx_SECRETKEYBYTES)
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return crypto_scalarmult_base(pk, sk)
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}
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function crypto_kx_seed_keypair (pk, sk, seed) {
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check(pk, crypto_kx_PUBLICKEYBYTES)
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check(sk, crypto_kx_SECRETKEYBYTES)
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check(seed, crypto_kx_SEEDBYTES)
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crypto_generichash(sk, seed)
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return crypto_scalarmult_base(pk, sk)
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}
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function check (buf, len) {
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if (!buf || (len && buf.length < len)) throw new Error('Argument must be a buffer' + (len ? ' of length ' + len : ''))
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}
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module.exports = {
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crypto_kx_keypair,
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crypto_kx_seed_keypair,
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crypto_kx_SEEDBYTES,
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crypto_kx_SECRETKEYBYTES,
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crypto_kx_PUBLICKEYBYTES
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}
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