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docs: adds usage examples to AES and HMAC
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README.md
63
README.md
@ -74,8 +74,51 @@ This uses `CTR` mode.
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- `data: Buffer`
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- `callback: Function`
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```
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TODO: Example of using aes
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```js
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var crypto = require('libp2p-crypto')
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// Setting up Key and IV
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// A 16 bytes array, 128 Bits, AES-128 is chosen
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var key128 = Buffer.from([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])
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// A 16 bytes array, 128 Bits,
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var IV = Buffer.from([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])
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async function main () {
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let decryptedMessage = 'Hello, world!'
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let encryptedMessage
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// Encrypting
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await crypto.aes.create(key128, IV, (err, cipher) => {
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if (!err) {
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cipher.encrypt(Buffer.from(decryptedMessage), (err, encryptedBuffer) => {
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if (!err) {
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console.log(encryptedBuffer)
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// prints: <Buffer 42 f1 67 d9 2e 42 d0 32 9e b1 f8 3c>
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encryptedMessage = encryptedBuffer
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}
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})
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}
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})
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// Decrypting
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await crypto.aes.create(key128, IV, (err, cipher) => {
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if (!err) {
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cipher.decrypt(encryptedMessage, (err, decryptedBuffer) => {
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if (!err) {
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console.log(decryptedBuffer)
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// prints: <Buffer 42 f1 67 d9 2e 42 d0 32 9e b1 f8 3c>
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console.log(decryptedBuffer.toString('utf-8'))
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// prints: Hello, world!
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}
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})
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}
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})
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}
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main()
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```
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### `crypto.hmac`
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@ -95,8 +138,20 @@ Exposes an interface to the Keyed-Hash Message Authentication Code (HMAC) as def
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Example:
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```
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TODO: Example of using hmac
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```js
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var crypto = require('libp2p-crypto')
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let hash = 'SHA1' // 'SHA256' || 'SHA512'
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crypto.hmac.create(hash, Buffer.from('secret'), (err, hmac) => {
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if (!err) {
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hmac.digest(Buffer.from('hello world'), (err, sig) => {
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if (!err) {
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console.log(sig)
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}
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})
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}
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})
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```
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### `crypto.keys`
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