jwk-encrypt

Encrypt and decrypt your data using JSON Web Key (JWK). Implemented using Web Crypto Api, RSA-OAEP, AES-CTR.

Encrypt / decrypt message with JWK

``
import { encryptText, decryptText } from "jwk-encrypt"

const encryptedMessage = await encryptText(jwk, "Message to encrypt");
const originalMessage = await decryptText(jwk, encryptedMessage);
`

jwk is an object in JWK format like

`
{
"kty": "RSA",
"n": "ws-5Ln...",
"e": "AQAB",
"d": "L4QdBe...",
"p": "8uNw393yPhDyf9...",
"q": "zVPjt08rxLgZ...",
"dp": "5tFNSvFYa...",
"dq": "BcCP5J...",
"qi": "StxIGos3..."
}
`

The message will be encrypted with random 256-bit key using AES-CTR algorithm. The key itself will be encrypted using RSA-OAEP with the public part of the key from provided JWK. As a result it returns combination of a counter (16 bytes), the encrypted with RSA random key (512 bytes) and the encrypted content.

Encrypt / decrypt data with JWK

`
import { encrypt, decrypt } from "jwk-encrypt"

const encryptedData = await encrypt(jwk, data);
const originalData = await decrypt(jwk, encryptedData);
`

Scripts

In the project directory, you can run:

$3

Demo UI to play with the encryption

$3

Builds the library for production to the dist` folder.