Wire crypto provider into transaction, wallet, and scanning code

Switch 16 consumer files from direct crypto imports to the switchable
  crypto provider. setCryptoBackend('wasm') now accelerates all real
  transaction building, output scanning, and key derivation end-to-end.
  Source implementation files (keccak.js, ed25519.js, scanning.js, etc.)
  keep direct imports to avoid circular dependencies.

src/base58.js

@@ -9,7 +9,7 @@
  */
 
 import { BASE58_ALPHABET, BASE58_FULL_BLOCK_SIZE, BASE58_FULL_ENCODED_BLOCK_SIZE, BASE58_ENCODED_BLOCK_SIZES } from './constants.js';
-import { keccak256 } from './keccak.js';
+import { keccak256 } from './crypto/index.js';
 
 // Build reverse alphabet lookup
 const ALPHABET_MAP = new Map();

src/bulletproofs_plus.js

@@ -9,7 +9,7 @@
 
 import { ed25519, ed25519_hasher } from '@noble/curves/ed25519.js';
 import { mod, invert, Field } from '@noble/curves/abstract/modular.js';
-import { keccak256 } from './keccak.js';
+import { keccak256 } from './crypto/index.js';
 
 // Ed25519 curve order (L)
 const L = BigInt('0x1000000000000000000000000000000014def9dea2f79cd65812631a5cf5d3ed');

src/carrot-scanning.js

@@ -15,10 +15,9 @@
  * - Salvium carrot_core/enote_utils.cpp
  */
 
-import { blake2b } from './blake2b.js';
-import { keccak256 } from './keccak.js';
 import { hexToBytes, bytesToHex } from './address.js';
-import { scalarMultPoint, pointFromBytes, pointToBytes } from './ed25519.js';
+import { pointFromBytes, pointToBytes } from './ed25519.js';
+import { blake2b, keccak256, scalarMultPoint } from './crypto/index.js';
 
 // Group order L for scalar reduction
 const L = (1n << 252n) + 27742317777372353535851937790883648493n;
@@ -698,8 +697,7 @@ export function scanCarrotOutput(output, viewIncomingKey, accountSpendPubkey, in
 // Import additional ed25519 functions
 // ============================================================================
 
-import { scalarMultBase, pointAddCompressed } from './ed25519.js';
-import { hashToPoint } from './keyimage.js';
+import { scalarMultBase, pointAddCompressed, hashToPoint } from './crypto/index.js';
 
 // Group order L for scalar reduction (also defined at top for clarity)
 const L_ORDER = (1n << 252n) + 27742317777372353535851937790883648493n;

src/carrot.js

@@ -3,10 +3,9 @@
  * Implements key derivation as per Salvium specification
  */
 
-import { blake2b } from './blake2b.js';
-import { keccak256 } from './keccak.js';
 import { hexToBytes, bytesToHex } from './address.js';
-import { scalarMultBase, computeCarrotSpendPubkey, computeCarrotMainAddressViewPubkey, computeCarrotAccountViewPubkey } from './ed25519.js';
+import { computeCarrotSpendPubkey, computeCarrotMainAddressViewPubkey, computeCarrotAccountViewPubkey } from './ed25519.js';
+import { blake2b, keccak256, scalarMultBase } from './crypto/index.js';
 
 // Group order L for scalar reduction
 const L = (1n << 252n) + 27742317777372353535851937790883648493n;

src/mining.js

@@ -8,7 +8,8 @@
  * Reference: cryptonote_basic/miner.cpp, cryptonote_basic/difficulty.cpp
  */
 
-import { keccak256, cnFastHash } from './keccak.js';
+import { cnFastHash } from './keccak.js';
+import { keccak256 } from './crypto/index.js';
 import { encodeVarint, serializeBlockHeader, HF_VERSION_ENABLE_ORACLE } from './transaction.js';
 
 // =============================================================================

src/multisig-carrot.js

@@ -13,9 +13,8 @@
  */
 
 import { bytesToHex, hexToBytes } from './address.js';
-import { keccak256 } from './keccak.js';
-import { scalarMultBase, scalarMultPoint, pointAddCompressed } from './ed25519.js';
 import { computeCarrotSpendPubkey, computeCarrotMainAddressViewPubkey, computeCarrotAccountViewPubkey } from './ed25519.js';
+import { keccak256, scalarMultBase, scalarMultPoint, pointAddCompressed } from './crypto/index.js';
 import { scAdd } from './transaction.js';
 import { MultisigAccount } from './multisig.js';
 import {

src/multisig.js

@@ -18,8 +18,8 @@
  */
 
 import { bytesToHex, hexToBytes } from './address.js';
-import { keccak256 } from './keccak.js';
-import { scalarMultBase, scalarMultPoint, pointAddCompressed, randomScalar } from './ed25519.js';
+import { randomScalar } from './ed25519.js';
+import { keccak256, scalarMultBase, scalarMultPoint, pointAddCompressed } from './crypto/index.js';
 import { scReduce32, scAdd, scMul, scMulAdd } from './transaction.js';
 import { encode as base58Encode, decode as base58Decode } from './base58.js';
 

src/offline.js

@@ -12,7 +12,7 @@
  */
 
 import { bytesToHex, hexToBytes } from './address.js';
-import { keccak256 } from './keccak.js';
+import { keccak256 } from './crypto/index.js';
 import {
   signTransaction,
   serializeTransaction,

src/signature.js

@@ -10,7 +10,7 @@
  * V2: hash = Keccak256(domain_separator + spend_key + view_key + mode + varint(len) + message)
  */
 
-import { keccak256 } from './keccak.js';
+import { keccak256 } from './crypto/index.js';
 import { decode } from './base58.js';
 import { parseAddress } from './address.js';
 import {

src/subaddress.js

@@ -5,13 +5,10 @@
  * plus integrated address creation.
  */
 
-import { keccak256 } from './keccak.js';
-import { blake2b } from './blake2b.js';
 import {
-  scalarMultBase,
-  scalarMultPoint,
-  pointAddCompressed
-} from './ed25519.js';
+  keccak256, blake2b,
+  scalarMultBase, scalarMultPoint, pointAddCompressed,
+} from './crypto/index.js';
 
 // Group order L for scalar reduction
 const L = (1n << 252n) + 27742317777372353535851937790883648493n;

src/testnet/index.js

@@ -15,7 +15,7 @@ import { MemoryStorage } from '../wallet-store.js';
 import { WalletSync } from '../wallet-sync.js';
 import { NETWORK_ID, CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW } from '../consensus.js';
 import { generateSeed, deriveKeys, deriveCarrotKeys } from '../carrot.js';
-import { generateKeyDerivation, deriveSecretKey } from '../scanning.js';
+import { generateKeyDerivation, deriveSecretKey } from '../crypto/index.js';
 import { selectUTXOs } from '../transaction/utxo.js';
 import {
   buildTransaction,

src/testnet/miner-tx.js

@@ -11,8 +11,9 @@
  * @module testnet/miner-tx
  */
 
-import { randomScalar, scalarMultBase } from '../ed25519.js';
-import { generateKeyDerivation, derivePublicKey, deriveViewTag } from '../scanning.js';
+import { randomScalar } from '../ed25519.js';
+import { deriveViewTag } from '../scanning.js';
+import { scalarMultBase, generateKeyDerivation, derivePublicKey } from '../crypto/index.js';
 import { cnFastHash } from '../keccak.js';
 import { serializeTxPrefix, encodeVarint } from '../transaction/serialization.js';
 import { bytesToHex, hexToBytes } from '../address.js';

src/transaction.js

@@ -10,10 +10,14 @@
  * Reference: Salvium/Monero src/ringct/rctOps.cpp, src/ringct/rctSigs.cpp
  */
 
-import { keccak256, keccak256Hex } from './keccak.js';
-import { scalarMultBase, scalarMultPoint, pointAddCompressed, getGeneratorG, getGeneratorT } from './ed25519.js';
-import { generateKeyDerivation, derivationToScalar, derivePublicKey, deriveSecretKey } from './scanning.js';
-import { hashToPoint, generateKeyImage } from './keyimage.js';
+import { keccak256Hex } from './keccak.js';
+import { getGeneratorG, getGeneratorT } from './ed25519.js';
+import { derivationToScalar } from './scanning.js';
+import {
+  keccak256, scalarMultBase, scalarMultPoint, pointAddCompressed,
+  generateKeyDerivation, derivePublicKey, deriveSecretKey,
+  hashToPoint, generateKeyImage,
+} from './crypto/index.js';
 import { bytesToHex, hexToBytes } from './address.js';
 
 // =============================================================================

src/transaction/analysis.js

@@ -11,7 +11,7 @@
  * @module transaction/analysis
  */
 
-import { keccak256 } from '../keccak.js';
+import { keccak256 } from '../crypto/index.js';
 import { hexToBytes } from '../address.js';
 
 import { TXIN_TYPE } from './constants.js';

src/transaction/carrot-output.js

@@ -14,13 +14,16 @@
  * @module transaction/carrot-output
  */
 
-import { blake2b } from '../blake2b.js';
 import { hexToBytes, bytesToHex } from '../address.js';
-import { scalarMultBase, scalarMultPoint, pointAddCompressed, getGeneratorT } from '../ed25519.js';
+import { getGeneratorT } from '../ed25519.js';
 import { edwardsToMontgomeryU, x25519ScalarMult } from '../carrot-scanning.js';
+import {
+  blake2b, scalarMultBase, scalarMultPoint, pointAddCompressed,
+  scReduce32, commit,
+} from '../crypto/index.js';
 
 import { CARROT_DOMAIN, CARROT_ENOTE_TYPE } from './constants.js';
-import { scReduce32, bigIntToBytes, commit } from './serialization.js';
+import { bigIntToBytes } from './serialization.js';
 
 // =============================================================================
 // CARROT HASH FUNCTIONS

src/wallet-sync.js

@@ -12,9 +12,6 @@
 
 import { WalletOutput, WalletTransaction } from './wallet-store.js';
 import {
-  generateKeyDerivation,
-  derivePublicKey,
-  deriveSecretKey,
   deriveViewTag,
   computeSharedSecret,
   ecdhDecodeFull,
@@ -23,11 +20,13 @@ import {
 } from './scanning.js';
 import { cnSubaddressSecretKey, carrotIndexExtensionGenerator, carrotSubaddressScalar } from './subaddress.js';
 import { scanCarrotOutput, makeInputContext, makeInputContextCoinbase, generateCarrotKeyImage } from './carrot-scanning.js';
-import { generateKeyImage } from './keyimage.js';
 import { parseTransaction, extractTxPubKey, extractPaymentId } from './transaction.js';
 import { bytesToHex, hexToBytes } from './address.js';
 import { TX_TYPE } from './wallet.js';
-import { commit as pedersonCommit } from './transaction/serialization.js';
+import {
+  generateKeyDerivation, derivePublicKey, deriveSecretKey,
+  generateKeyImage, commit as pedersonCommit,
+} from './crypto/index.js';
 
 // ============================================================================
 // CONSTANTS

src/wallet.js

@@ -19,8 +19,8 @@
 import { generateSeed, deriveKeys, deriveCarrotKeys } from './carrot.js';
 import { createAddress, parseAddress, hexToBytes, bytesToHex } from './address.js';
 import { cnSubaddress } from './subaddress.js';
-import { generateKeyDerivation, derivationToScalar, deriveSecretKey, scanTransaction } from './scanning.js';
-import { generateKeyImage } from './keyimage.js';
+import { derivationToScalar, scanTransaction } from './scanning.js';
+import { generateKeyDerivation, deriveSecretKey, generateKeyImage, scalarMultBase } from './crypto/index.js';
 import {
   buildTransaction,
   buildStakeTransaction,
@@ -259,7 +259,6 @@ export class Wallet {
       : spendPublicKey;
 
     // Derive view public key from view secret key
-    const { scalarMultBase } = require('./ed25519.js');
     wallet._viewPublicKey = scalarMultBase(wallet._viewSecretKey);
 
     return wallet;