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deid_table_with_crypto_hash.go
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/
deid_table_with_crypto_hash.go
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package deid
// [START dlp_deidentify_table_with_crypto_hash]
import (
"context"
"fmt"
"io"
dlp "cloud.google.com/go/dlp/apiv2"
"cloud.google.com/go/dlp/apiv2/dlppb"
)
// deIdentifyTableWithCryptoHash transforms findings using a cryptographic hash transformation.
func deIdentifyTableWithCryptoHash(w io.Writer, projectID, transientKeyName string) error {
// projectId := "your-project-id"
// transientKeyName := "YOUR_TRANSIENT_CRYPTO_KEY_NAME"
row1 := &dlppb.Table_Row{
Values: []*dlppb.Value{
{Type: &dlppb.Value_StringValue{StringValue: "user1@example.org"}},
{Type: &dlppb.Value_StringValue{StringValue: "my email is user1@example.org and phone is 858-555-0222"}},
},
}
row2 := &dlppb.Table_Row{
Values: []*dlppb.Value{
{Type: &dlppb.Value_StringValue{StringValue: "user2@example.org"}},
{Type: &dlppb.Value_StringValue{StringValue: "my email is user2@example.org and phone is 858-555-0232"}},
},
}
row3 := &dlppb.Table_Row{
Values: []*dlppb.Value{
{Type: &dlppb.Value_StringValue{StringValue: "user3@example.org"}},
{Type: &dlppb.Value_StringValue{StringValue: "my email is user3@example.org and phone is 858-555-0224"}},
},
}
tableToDeidentify := &dlppb.Table{
Headers: []*dlppb.FieldId{
{Name: "userid"},
{Name: "comments"},
},
Rows: []*dlppb.Table_Row{
{Values: row1.Values},
{Values: row2.Values},
{Values: row3.Values},
},
}
ctx := context.Background()
// Initialize a client once and reuse it to send multiple requests. Clients
// are safe to use across goroutines. When the client is no longer needed,
// call the Close method to cleanup its resources.
client, err := dlp.NewClient(ctx)
if err != nil {
return err
}
// Closing the client safely cleans up background resources.
defer client.Close()
// Specify what content you want the service to de-identify.
contentItem := &dlppb.ContentItem{
DataItem: &dlppb.ContentItem_Table{
Table: tableToDeidentify,
},
}
// Specify the type of info the inspection will look for.
// See https://cloud.google.com/dlp/docs/infotypes-reference for complete list of info types
infoTypes := []*dlppb.InfoType{
{Name: "PHONE_NUMBER"},
{Name: "EMAIL_ADDRESS"},
}
inspectConfig := &dlppb.InspectConfig{
InfoTypes: infoTypes,
}
// Specify the transient key which will encrypt the data.
if transientKeyName == "" {
transientKeyName = "YOUR_TRANSIENT_CRYPTO_KEY_NAME"
}
// Specify the transient key which will encrypt the data.
cryptoKey := &dlppb.CryptoKey{
Source: &dlppb.CryptoKey_Transient{
Transient: &dlppb.TransientCryptoKey{
Name: transientKeyName,
},
},
}
// Specify how the info from the inspection should be encrypted.
cryptoHashConfig := &dlppb.CryptoHashConfig{
CryptoKey: cryptoKey,
}
// Define type of de-identification as cryptographic hash transformation.
primitiveTransformation := &dlppb.PrimitiveTransformation_CryptoHashConfig{
CryptoHashConfig: cryptoHashConfig,
}
infoTypeTransformation := &dlppb.InfoTypeTransformations_InfoTypeTransformation{
InfoTypes: infoTypes,
PrimitiveTransformation: &dlppb.PrimitiveTransformation{
Transformation: primitiveTransformation,
},
}
transformations := &dlppb.InfoTypeTransformations{
Transformations: []*dlppb.InfoTypeTransformations_InfoTypeTransformation{
infoTypeTransformation,
},
}
// Specify the config for the de-identify request.
deidentifyConfig := &dlppb.DeidentifyConfig{
Transformation: &dlppb.DeidentifyConfig_InfoTypeTransformations{
InfoTypeTransformations: transformations,
},
}
// Construct the de-identification request to be sent by the client.
req := &dlppb.DeidentifyContentRequest{
Parent: fmt.Sprintf("projects/%s/locations/global", projectID),
DeidentifyConfig: deidentifyConfig,
InspectConfig: inspectConfig,
Item: contentItem,
}
// Send the request.
resp, err := client.DeidentifyContent(ctx, req)
if err != nil {
return err
}
// Print the results.
fmt.Fprintf(w, "Table after de-identification : %v", resp.GetItem().GetTable())
return nil
}
// [END dlp_deidentify_table_with_crypto_hash]