LiteRT/Signatures

A signatures library based on Node.js crypto module.

Requirement

• TypeScript v3.1.x (or newer)
• Node.js v8.0.0 (or newer)

Installation

npm i @litert/signatures --save

Usage

import * as Signs from '@litert/signatures';

// Sign by RSA-SHA-256 with PKCS1-v1.5 padding
const rsaSign = Signs.RSA.sign('sha256', privKeyRSA, content);

// Verify by RSA-SHA-256 with PKCS1-v1.5 padding
if (Signs.RSA.verify('sha256', pubKeyRSA, content, rsaSign)) {

    console.log('RSA ok');
}

// Sign by RSA-SHA-256 with PSS-MGF1 padding
const rsapssSign = Signs.RSA.sign('sha256', privKeyRSA, content, {
    padding: 'pss-mgf1'
});

// Verify by RSA-SHA-256 with PSS-MGF1 padding
if (Signs.RSA.verify('sha256', pubKeyRSA, content, rsapssSign, {
    padding: 'pss-mgf1'
})) {

    console.log('RSA ok');
}

// Sign by ECDSA-SHA-256
const ecdsaSign = Signs.ECDSA.sign('sha256', privKeyECDSA, content);

// The output is of DER format.
console.log(`ECDSA DER:   ${ecdsaSign.toString('hex')}`);

// You can convert it into P1363 format
// And transform it back to DER by method derToP1363
console.log(`ECDSA p1363: ${Signs.ECDSA.p1363ToDER(ecdsaSign).toString('hex')}`);

// or use format option:
console.log(`ECDSA p1363: ${Signs.ECDSA.sign('sha256', privKeyECDSA, content, {format: 'ieee-p1363'}).toString('hex')}`);


// Verify by ECDSA-SHA-256
if (Signs.ECDSA.verify('sha256', pubKeyECDSA, content, ecdsaSign)) {

    console.log('ECDSA ok');
}

// Sign by HMAC-SHA-256
const hmacSign = Signs.HMAC.sign('sha256', hmacKey, content);

// Verify by HMAC-SHA-256
if (Signs.HMAC.verify('sha256', hmacKey, content, hmacSign)) {

    console.log('HMAC ok');
}

See more examples.

Document

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License

This library is published under Apache-2.0 license.