Hi,
To decrypt the input received from the Webex bot through the adaptive card, you will indeed need to use Cisco's KMS (Key Management Service) API to obtain the decryption key. Here’s a general approach to achieve this:
- Authenticate and Obtain Access Token:
First, you need to authenticate with Cisco's KMS API and get an access token. This typically involves using OAuth 2.0 to obtain the token.
- Request the Decryption Key:
Use the access token to request the decryption key from Cisco’s KMS API. You need to know the key ID or the encryption context that was used to encrypt the data.
- Decrypt the Data:
Once you have the decryption key, use it to decrypt the data you received from the Webex bot. This usually involves using a specific encryption algorithm that Cisco's KMS API supports.
Here is a basic outline of the steps in code (note that this is a simplified example and may require adjustments based on your specific implementation):
```python
import requests
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.backends import default_backend
import base64
# Step 1: Authenticate and get access token
auth_url = ""
client_id = "your_client_id"
client_secret = "your_client_secret"
grant_type = "client_credentials"
headers = {
"Content-Type": "application/x-www-form-urlencoded"
}
data = {
"grant_type": grant_type,
"client_id": client_id,
"client_secret": client_secret
}
response = requests.post(auth_url, headers=headers, data=data)
access_token = response.json().get("access_token")
# Step 2: Request the decryption key from KMS API
kms_url = "https://api.ciscospark.com/v1/kms/keys"
kms_headers = {
"Authorization": f"Bearer {access_token}",
"Content-Type": "application/json"
}
kms_response = requests.get(kms_url, headers=kms_headers)
decryption_key = kms_response.json().get("key")
# Step 3: Decrypt the data
encrypted_data = base64.b64decode("your_encrypted_data_here")
cipher = Cipher(algorithms.AES(decryption_key), modes.CBC(iv), backend=default_backend())
decryptor = cipher.decryptor()
decrypted_data = decryptor.update(encrypted_data) + decryptor.finalize()
print(decrypted_data)
```
Ensure you replace placeholders with your actual client ID, client secret, and encrypted data. Also, you will need to handle error checking and specific encryption details based on how Cisco's KMS API operates.
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If you need more detailed guidance or encounter specific issues, feel free to ask!
Best regards.
