Add fish_hash library and bindings

ironfish-rust-nodejs/Cargo.toml

@@ -27,10 +27,11 @@ crate-type = ["cdylib"]
 
 [dependencies]
 base64 = "0.13.0"
+fish_hash = "0.1.0"
 ironfish = { path = "../ironfish-rust" }
+ironfish_mpc = { path = "../ironfish-mpc" }
 napi = { version = "2.13.2", features = ["napi6"] }
 napi-derive = "2.13.0"
-ironfish_mpc = { path = "../ironfish-mpc" }
 
 [build-dependencies]
 napi-build = "2.0.1"

ironfish-rust-nodejs/index.d.ts

@@ -82,6 +82,11 @@ export function wordsToSpendingKey(words: string, languageCode: LanguageCode): s
 export function generateKeyFromPrivateKey(privateKey: string): Key
 export function initializeSapling(): void
 export function isValidPublicAddress(hexAddress: string): boolean
+export class FishHashContext {
+  constructor(full: boolean)
+  prebuildDataset(threads: number): void
+  hash(header: Buffer): Buffer
+}
 export class BoxKeyPair {
   constructor()
   static fromHex(secretHex: string): BoxKeyPair

ironfish-rust-nodejs/index.js

@@ -252,8 +252,9 @@ if (!nativeBinding) {
   throw new Error(`Failed to load native binding`)
 }
 
-const { contribute, verifyTransform, KEY_LENGTH, NONCE_LENGTH, BoxKeyPair, randomBytes, boxMessage, unboxMessage, RollingFilter, initSignalHandler, triggerSegfault, ASSET_ID_LENGTH, ASSET_METADATA_LENGTH, ASSET_NAME_LENGTH, ASSET_LENGTH, Asset, NOTE_ENCRYPTION_KEY_LENGTH, MAC_LENGTH, ENCRYPTED_NOTE_PLAINTEXT_LENGTH, ENCRYPTED_NOTE_LENGTH, NoteEncrypted, PUBLIC_ADDRESS_LENGTH, RANDOMNESS_LENGTH, MEMO_LENGTH, AMOUNT_VALUE_LENGTH, DECRYPTED_NOTE_LENGTH, Note, PROOF_LENGTH, TRANSACTION_SIGNATURE_LENGTH, TRANSACTION_PUBLIC_KEY_RANDOMNESS_LENGTH, TRANSACTION_EXPIRATION_LENGTH, TRANSACTION_FEE_LENGTH, LATEST_TRANSACTION_VERSION, TransactionPosted, Transaction, verifyTransactions, LanguageCode, generateKey, spendingKeyToWords, wordsToSpendingKey, generateKeyFromPrivateKey, initializeSapling, FoundBlockResult, ThreadPoolHandler, isValidPublicAddress } = nativeBinding
+const { FishHashContext, contribute, verifyTransform, KEY_LENGTH, NONCE_LENGTH, BoxKeyPair, randomBytes, boxMessage, unboxMessage, RollingFilter, initSignalHandler, triggerSegfault, ASSET_ID_LENGTH, ASSET_METADATA_LENGTH, ASSET_NAME_LENGTH, ASSET_LENGTH, Asset, NOTE_ENCRYPTION_KEY_LENGTH, MAC_LENGTH, ENCRYPTED_NOTE_PLAINTEXT_LENGTH, ENCRYPTED_NOTE_LENGTH, NoteEncrypted, PUBLIC_ADDRESS_LENGTH, RANDOMNESS_LENGTH, MEMO_LENGTH, AMOUNT_VALUE_LENGTH, DECRYPTED_NOTE_LENGTH, Note, PROOF_LENGTH, TRANSACTION_SIGNATURE_LENGTH, TRANSACTION_PUBLIC_KEY_RANDOMNESS_LENGTH, TRANSACTION_EXPIRATION_LENGTH, TRANSACTION_FEE_LENGTH, LATEST_TRANSACTION_VERSION, TransactionPosted, Transaction, verifyTransactions, LanguageCode, generateKey, spendingKeyToWords, wordsToSpendingKey, generateKeyFromPrivateKey, initializeSapling, FoundBlockResult, ThreadPoolHandler, isValidPublicAddress } = nativeBinding
 
+module.exports.FishHashContext = FishHashContext
 module.exports.contribute = contribute
 module.exports.verifyTransform = verifyTransform
 module.exports.KEY_LENGTH = KEY_LENGTH

ironfish-rust-nodejs/src/fish_hash.rs

@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use fish_hash::Context;
+use napi::{bindgen_prelude::Buffer, JsBuffer};
+use napi_derive::napi;
+
+#[napi]
+pub struct FishHashContext {
+    inner: Context,
+}
+
+#[napi]
+impl FishHashContext {
+    #[napi(constructor)]
+    pub fn new(full: bool) -> Self {
+        Self {
+            inner: Context::new(full),
+        }
+    }
+
+    #[napi]
+    pub fn prebuild_dataset(&mut self, threads: u32) {
+        self.inner.prebuild_dataset(threads as usize)
+    }
+
+    #[napi]
+    pub fn hash(&mut self, header: JsBuffer) -> Buffer {
+        let bytes = header.into_value().unwrap();
+
+        let mut output = [0u8; 32];
+        fish_hash::hash(&mut output, &mut self.inner, bytes.as_ref());
+
+        Buffer::from(output.to_vec())
+    }
+}

ironfish-rust-nodejs/src/lib.rs

@@ -13,6 +13,7 @@ use napi_derive::napi;
 use ironfish::mining;
 use ironfish::sapling_bls12;
 
+pub mod fish_hash;
 pub mod mpc;
 pub mod nacl;
 pub mod rolling_filter;

ironfish-rust-nodejs/tests/fish_hash.test.slow.ts

@@ -0,0 +1,20 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import { FishHashContext } from '..'
+
+describe('FishHashContext', () => {
+  it('should be able to generate a new FishHash context', () => {
+    const context = new FishHashContext(false)
+    expect(context).toBeDefined()
+  })
+
+  it('should be able to hash a buffer', () => {
+    let data = Buffer.from('the quick brown fox jumps over the lazy dog')
+    const context = new FishHashContext(false)
+
+    const hash = context.hash(data)
+    expect(hash.toString('hex')).toEqual('6f4429716dc009d5d3b9775a4d6a5d58bccd9f73386bf88da7d5afdf5deb50f1')
+  })
+})