48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
#!/usr/bin/env python3
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import hmac
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import hashlib
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import base64
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import argparse
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import sys
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# These values are required to calculate the signature. Do not change them.
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DATE = "20230926"
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SERVICE = "postbox"
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MESSAGE = "SendRawEmail"
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REGION = "ru-central1"
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TERMINAL = "aws4_request"
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VERSION = 0x04
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def sign(key, msg):
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return hmac.new(key, msg.encode("utf-8"), hashlib.sha256).digest()
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def calculate_key(secret_access_key):
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signature = sign(("AWS4" + secret_access_key).encode("utf-8"), DATE)
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signature = sign(signature, REGION)
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signature = sign(signature, SERVICE)
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signature = sign(signature, TERMINAL)
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signature = sign(signature, MESSAGE)
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signature_and_version = bytes([VERSION]) + signature
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smtp_password = base64.b64encode(signature_and_version)
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return smtp_password.decode("utf-8")
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def main():
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if sys.version_info[0] < 3:
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raise Exception("Must be using Python 3")
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parser = argparse.ArgumentParser(
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description="Convert a Secret Access Key to an SMTP password."
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)
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parser.add_argument("secret", help="The Secret Access Key to convert.")
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args = parser.parse_args()
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print(calculate_key(args.secret))
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if __name__ == "__main__":
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main()
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