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Used to convert an AWS IAM access key to SMTP password
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#!/usr/bin/env python3 | |
import hmac | |
import hashlib | |
import base64 | |
import argparse | |
# Values that are required to calculate the signature. These values should | |
# never change. | |
DATE = "11111111" | |
SERVICE = "ses" | |
MESSAGE = "SendRawEmail" | |
TERMINAL = "aws4_request" | |
VERSION = 0x04 | |
def sign(key, msg): | |
return hmac.new(key, msg.encode('utf-8'), hashlib.sha256).digest() | |
def calculateKey(secretAccessKey, region): | |
signature = sign(("AWS4" + secretAccessKey).encode('utf-8'), DATE) | |
signature = sign(signature, region) | |
signature = sign(signature, SERVICE) | |
signature = sign(signature, TERMINAL) | |
signature = sign(signature, MESSAGE) | |
signatureAndVersion = bytes([VERSION]) + signature | |
smtpPassword = base64.b64encode(signatureAndVersion) | |
print(smtpPassword.decode('utf-8')) | |
def main(): | |
parser = argparse.ArgumentParser(description='Convert a Secret Access Key for an IAM user to an SMTP password.') | |
parser.add_argument('--secret', | |
help='The Secret Access Key that you want to convert.', | |
required=True, | |
action="store") | |
parser.add_argument('--region', | |
help='The name of the AWS Region that the SMTP password will be used in.', | |
required=True, | |
choices=['us-east-1','us-west-2','eu-west-1', 'ap-southeast-2'], | |
action="store") | |
args = parser.parse_args() | |
calculateKey(args.secret,args.region) | |
main() |
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