Pure JavaScript Salsa20 stream cipher
Salsa20 is a family of 256-bit stream ciphers designed in 2005 and submitted to eSTREAM, the ECRYPT Stream Cipher Project. Salsa20 has progressed to the third round of eSTREAM without any changes. The 20-round stream cipher Salsa20/20 is consistently faster than AES and is recommended by the designer for typical cryptographic applications.
- https://cr.yp.to/snuffle/salsa20/ref/salsa20.c
- The Salsa20 family of stream ciphers
- Salsa20 specification
- Salsa20 design
npm install js-salsa20 --save
Encrypt message with key and nonce
import JSSalsa20 from "js-salsa20";
const key = Uint8Array([...]); // 32 bytes key
const nonce = Uint8Array([...]); // 8 bytes nonce
const message = Uint8Array([...]); // some data as bytes array
// Encrypt //
const encrypt = new JSSalsa20(key, nonce).encrypt(message);
// now encrypt contains bytes array of encrypted messageDecrypt encrypted message with key and nonce
import JSSalsa20 from "js-salsa20";
const key = Uint8Array([...]); // 32 bytes key
const nonce = Uint8Array([...]); // 8 bytes nonce
const encrypt = Uint8Array([...]); // some data as bytes array
// Encrypt //
const message = new JSSalsa20(key, nonce).decrypt(encrypt);
// now message contains bytes array of original messageThat all. If something happens, Error will be thrown. More examples you can find in tests files.
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