Desidentifica el contenido mediante la encriptación determinista
Usa la API de Data Loss Prevention para desidentificar datos sensibles en una string con la encriptación determinista, que es un método criptográfico reversible. La encriptación se realiza con una clave unida.
Muestra de código
Python
Si deseas obtener información para instalar y usar la biblioteca cliente de Cloud DLP, consulta Bibliotecas cliente de Cloud DLP.
def deidentify_with_deterministic(
project,
input_str,
info_types,
surrogate_type=None,
key_name=None,
wrapped_key=None,
):
"""Deidentifies sensitive data in a string using deterministic encryption.
Args:
project: The Google Cloud project id to use as a parent resource.
input_str: The string to deidentify (will be treated as text).
surrogate_type: The name of the surrogate custom info type to use. Only
necessary if you want to reverse the deidentification process. Can
be essentially any arbitrary string, as long as it doesn't appear
in your dataset otherwise.
key_name: The name of the Cloud KMS key used to encrypt ('wrap') the
AES-256 key. Example:
key_name = 'projects/YOUR_GCLOUD_PROJECT/locations/YOUR_LOCATION/
keyRings/YOUR_KEYRING_NAME/cryptoKeys/YOUR_KEY_NAME'
wrapped_key: The encrypted ('wrapped') AES-256 key to use. This key
should be encrypted using the Cloud KMS key specified by key_name.
Returns:
None; the response from the API is printed to the terminal.
"""
import base64
# Import the client library
import google.cloud.dlp
# Instantiate a client
dlp = google.cloud.dlp_v2.DlpServiceClient()
# Convert the project id into a full resource id.
parent = f"projects/{project}"
# The wrapped key is base64-encoded, but the library expects a binary
# string, so decode it here.
wrapped_key = base64.b64decode(wrapped_key)
# Construct Deterministic encryption configuration dictionary
crypto_replace_deterministic_config = {
"crypto_key": {
"kms_wrapped": {"wrapped_key": wrapped_key, "crypto_key_name": key_name}
},
}
# Add surrogate type
if surrogate_type:
crypto_replace_deterministic_config["surrogate_info_type"] = {
"name": surrogate_type
}
# Construct inspect configuration dictionary
inspect_config = {"info_types": [{"name": info_type} for info_type in info_types]}
# Construct deidentify configuration dictionary
deidentify_config = {
"info_type_transformations": {
"transformations": [
{
"primitive_transformation": {
"crypto_deterministic_config": crypto_replace_deterministic_config
}
}
]
}
}
# Convert string to item
item = {"value": input_str}
# Call the API
response = dlp.deidentify_content(
request={
"parent": parent,
"deidentify_config": deidentify_config,
"inspect_config": inspect_config,
"item": item,
}
)
# Print results
print(response.item.value)
