๐ SHA-2 implementation in C
- C implementation
- JavaScript compiled from C
- No dependencies
- No
async
required - Supports SHA-256 (and SHA-512, but that's currently not part of the NPM package)
- Can export the digest state
- Can easily work with streams
The C library can be compiled from source using cmake
.
To install the JavaScript package, you can use npm
or yarn
:
npm install @exact-realty/sha2
or
yarn add @exact-realty/sha2
import sha2 from '@exact-realty/sha2';
// Create a SHA-256 instance
const hasher = sha2();
// Update the hash with data
hasher.update(Buffer.from('Hello, world!'));
// Finalize the hash and get the result
const hashResult = hasher.finish();
// ArrayBuffer {
// [Uint8Contents]: <31 5f 5b db 76 d0 78 c4 3b 8a c0 06 4e 4a 01 64 61 2b 1f
// ce 77 c8 69 34 5b fc 94 c7 58 94 ed d3>,
// byteLength: 32
// }
// Export the current state
const exportedState = hasher.exportState();
// ArrayBuffer {
// [Uint8Contents]: <6a 09 e6 67 bb 67 ae 85 3c 6e f3 72 a5 4f f5 3a 51 0e 52
// 7f 9b 05 68 8c 1f 83 d9 ab 5b e0 cd 19 00 00 00 00 00 00 00 00 00 00 00 00
// 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
// 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
// 00 00 00 00 00 00 ... 4 more bytes>,
// byteLength: 104
// }
// Import a previously exported state
hasher.importState(exportedState);
// Scrub the hash state
hasher.scrub();
We welcome any contributions and feedback! Please feel free to submit pull requests, bug reports or feature requests to our GitHub repository.
This project is released under the Apache 2.0 license. Check out the LICENSE
file for more information.