bcrypto


The missing crypto module for Node.js. Bcrypto provides you with a consistent
interface across Node.js and the browser. It is implemented as a [Node.js
addon][addon] for C libraries [libtorsion][libtorsion] and
[libsecp256k1][libsecp256k1] with corresponding implementations in JavaScript.

Usage

``js
const rng = require('bcrypto/lib/random');
const entropy = rng.randomBytes(32);

const Hash256 = require('bcrypto/lib/hash256');
const digest = Hash256.digest(Buffer.alloc(32, 0xaa));
`

API

See the ./lib directory for available modules and APIs.

Implementations

| | nodejs (linux) | nodejs (macos) | nodejs (win) | browser |
| :--------------------------- |:------------------| :-----------------|:------------------|:--------|
| aead | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| aes | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| bcrypt | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| blake2b{160,256,384,512} | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| blake2s{128,160,224,256} | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| bn | js w/ bigint | js w/ bigint | js w/ bigint | js |
| chacha20 | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| cshake{128,256} | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| ctr-drbg | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| dsa | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| eb2k | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| ecies | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| ed25519 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| ed448 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| gost94 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| hash160 | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| hash256 | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| hash-drbg | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| hkdf | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| hmac-drbg | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| keccak/sha3{224,256,384,512} | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| kmac{128,256} | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| md{2,4,5} | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| md5sha1 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| merkle | js | js | js | js |
| mrkl | js | js | js | js |
| murmur3 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| p{192,224,256,384,521} | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| pbkdf2 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| pgp | js | js | js | js |
| poly1305 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| random | c (openssl²) | c (openssl²) | c (openssl²) | js³ |
| rc4 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| ripemd160 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| rsa | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| rsaies | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| salsa20 | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| schnorr | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| scrypt | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| secp256k1 | c (libsecp256k1²) | c (libsecp256k1²) | c (libsecp256k1²) | js |
| sha1 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| sha{224,256,384,512} | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| shake{128,256} | c (libtorsion¹) | c (libtorsion¹) | c (libtorsion) | js |
| siphash | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| ssh | js | js | js | js |
| whirlpool | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| x25519 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |
| x448 | c (libtorsion) | c (libtorsion) | c (libtorsion) | js |

$3

1. with x86-64 assembly
2. optionally with libtorsion
3. using the webcrypto api

Contribution and License Agreement

If you contribute code to this project, you are implicitly allowing your code
to be distributed under the MIT license. You are also implicitly verifying that
all code is your original work. `

License

- Copyright (c) 2017-2019, Christopher Jeffrey (MIT License).

See LICENSE for more info.

[circleci-status-img]: https://circleci.com/gh/bcoin-org/bcrypto/tree/master.svg?style=shield
[circleci-status-url]: https://circleci.com/gh/bcoin-org/bcrypto/tree/master
[libtorsion]: https://github.com/bcoin-org/libtorsion
[libsecp256k1]: https://github.com/bitcoin-core/secp256k1
[addon]: https://nodejs.org/api/addons.html