fix: en_1 recommendations (#1746)

(cherry picked from commit c4504bc)

packages/core/src/transaction/Transaction.ts

@@ -284,7 +284,10 @@ class Transaction {
      */
     public get isSigned(): boolean {
         if (this.signature !== undefined) {
-            return Transaction.isSignatureValid(this.body, this.signature);
+            return Transaction.isSignatureLengthValid(
+                this.body,
+                this.signature
+            );
         }
         return false;
     }
@@ -856,13 +859,13 @@ class Transaction {
     }
 
     /**
-     * Return Returns true if the signature is valid, otherwise false.
+     * Validates the length of a given signature against the expected length.
      *
-     * @param {TransactionBody} body - The transaction body to be checked.
-     * @param {Uint8Array} signature - The signature to validate.
-     * @return {boolean} - Returns true if the signature is valid, otherwise false.
+     * @param {TransactionBody} body - The body of the transaction being validated.
+     * @param {Uint8Array} signature - The signature to verify the length of.
+     * @return {boolean} Returns true if the signature length matches the expected length, otherwise false.
      */
-    private static isSignatureValid(
+    private static isSignatureLengthValid(
         body: TransactionBody,
         signature: Uint8Array
     ): boolean {

packages/core/src/vcdm/hash/Keccak256.ts

@@ -10,7 +10,7 @@ import { HexUInt } from '../HexUInt';
  */
 class Keccak256 extends HexUInt {
     /**
-     * Generates the [SHA-3](https://en.wikipedia.org/wiki/SHA-3) [KECCAK 256](https://keccak.team/keccak.html) hash of the given input.
+     * Generates the [KECCAK 256](https://eth-hash.readthedocs.io/en/stable/) hash of the given input.
      *
      * @param {bigint | number | string | Uint8Array | Hex} exp - The input value to hash.
      *

packages/network/src/signer/signers/vechain-private-key-signer/vechain-private-key-signer.ts

@@ -123,13 +123,14 @@ class VeChainPrivateKeySigner extends VeChainAbstractSigner {
     }
 
     /**
-     *  Sends %%transactionToSend%% to the Network. The ``signer.populateTransaction(transactionToSend)``
-     *  is called first to ensure all necessary properties for the
-     *  transaction to be valid have been populated first.
+     * Sends a transaction to the blockchain.
      *
-     *  @param transactionToSend - The transaction to send
-     *  @returns The transaction response
-     * @throws {JSONRPCInvalidParams}
+     * @param {TransactionRequestInput} transactionToSend - The transaction object to be sent.
+     * This includes all the necessary details such as `to`, `value`, `data`, `gasLimit`, etc.
+     * @return {Promise<string>} A promise that resolves to the transaction hash as a string
+     * once the transaction is successfully sent.
+     * @throws {JSONRPCInvalidParams} Throws an error if the provider is not attached
+     * to the signer, indicating the signer's inability to send the transaction.
      */
     async sendTransaction(
         transactionToSend: TransactionRequestInput