[MD][PoC] based on simple encryption and decryption strategies

[noCharger]

Description

Two main features:

• Save credential (username, password) via API,
• Store encrypted information on metadata index

Code

elastic-analytics#1

Test

Cli command and output:

curl --include -XPOST localhost:5601/api/saved_objects/credential \
    -H "Content-Type: application/json" \
    -H "osd-xsrf: true" \
    -d'{"attributes": {"credential_name": "test-credential-2", "user_name": "louis", "password": "abcd"}}'
HTTP/1.1 200 OK
osd-name: 88665a1d4119.ant.amazon.com
content-type: application/json; charset=utf-8
cache-control: private, no-cache, no-store, must-revalidate
content-length: 805
Date: Sat, 25 Jun 2022 03:47:08 GMT
Connection: keep-alive
Keep-Alive: timeout=120

{"type":"credential","id":"7c42ab60-f439-11ec-8934-e9ce406d7ec9","attributes":{"credential_name":"test-credential-2","user_name":"louis","password":"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"},"references":[],"updated_at":"2022-06-25T03:47:07.669Z","version":"WzUsMV0="}%  

Saved object on Opensearch cluster

        "_index" : ".kibana_3",
        "_id" : "credential:7c42ab60-f439-11ec-8934-e9ce406d7ec9",
        "_score" : 1.0,
        "_source" : {
          "credential" : {
            "credential_name" : "test-credential-2",
            "user_name" : "louis",
            "password" : "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"
          },
          "type" : "credential",
          "references" : [ ],
          "updated_at" : "2022-06-25T03:47:07.669Z"
        }
      },