sodium-javascript/example.js

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JavaScript
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const sodium = require('./')
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const key = Buffer.alloc(sodium.crypto_secretbox_KEYBYTES)
const nonce = Buffer.alloc(sodium.crypto_secretbox_NONCEBYTES)
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sodium.randombytes_buf(key)
sodium.randombytes_buf(nonce)
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const message = Buffer.from('Hello, World!')
const cipher = Buffer.alloc(message.length + sodium.crypto_secretbox_MACBYTES)
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sodium.crypto_secretbox_easy(cipher, message, nonce, key)
console.log('Encrypted:', cipher)
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const plainText = Buffer.alloc(cipher.length - sodium.crypto_secretbox_MACBYTES)
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sodium.crypto_secretbox_open_easy(plainText, cipher, nonce, key)
console.log('Plaintext:', plainText.toString())
if (typeof window !== 'undefined') window.close()