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hedera-aws-kms-signing

This repo contains the code to demonstrate how to use AWS KMS to sign transactions for Hedera Network.

Prerequisite

  1. AWS account with access key id and secret key - please check out this link to learn how to create access key id and secret key.
  2. Set up KMS on AWS - create a new key with key type Asymmetric, key usage Sign and verify, and key spec ECC_SECG_P256K1 on AWS KMS. Please make sure you give the KMS access permission to the new access key id and secret key you just created at step one.
  3. Hedera test account - if you don't have an account, please check out portal and register to get one.

Install

npm install

Run

You need to specify the environment variables in .env before you can run the code. All environment variables are required

mv .env_sample .env
node index.js

if the code run successfully, you should see something similar to the following messages

Creating a new account
The new account ID is: 0.0.34827198
0.0.34827198 balance:  0.002 ℏ
Signing transaction in transactionSigner
Signing transaction in transactionSigner
Signing transaction in transactionSigner
Signing transaction in transactionSigner
The transfer transaction from my account to the new account was: SUCCESS
Check transaction here: https://hashscan.io/#/testnet/transaction/0.0.34827198-1652759412-391672572
Done