Redshift 安全性

Redshift 入门

Jason Myers

Principal Engineer

Redshift 安全性

列级访问控制
基于策略的行级安全
基于策略的数据遮蔽

Redshift 安全组合

列级权限

完全隐藏某列
可通过 SVV_COLUMN_PRIVILEGES 验证

SELECT *
  FROM SVV_COLUMN_PRIVILEGES
 WHERE relation_name = 'products';

relation_name | column_name  | privilege_type | identity_name | identity_type
==============|==============|================|===============|==============
products      | product_name | SELECT         | amelia        | user
products      | product_name | SELECT         | analytics     | role

行级安全

预过滤数据的策略

CREATE RLS POLICY policy_books
WITH (category VARCHAR(255))
USING (category = 'Dark Academia');

SELECT product_line, category, product_name
FROM products;

product_line | category      | product_name
=============|===============|===================
Books        | Dark Academia | A Deadly Education

行级安全

使用 SVV_RLS_POLICY 查看策略

SELECT polname AS policy_name, 
       polatts AS column_details,
       polqual AS condition
  FROM SVV_RLS_POLICY;

policy_name  | column_details                                 | condition
 ============|================================================|===========================
policy_books | [{"colname":"category","type":"VARCHAR(255)"}] | category = 'Dark Academia'

行级安全管理视图

超级用户可用 SVV_RLS_APPLIED_POLICY 查看受影响的查询

SELECT username, 
       command, 
       relschema, 
       relname, 
       polname,
FROM SVV_RLS_APPLIED_POLICY;

username | command | relschema | relname  | polname  
=========|=========|===========|==========|=============
aashvi   |    s    | public    | products | policy_books

动态遮蔽概览

隐藏查询返回值的策略
仅超级用户或被授权者可见
用途
- 国家身份证号（如社会保障号）
- 信用卡

SELECT name, social_security_number
  FROM customers;

name     | social_security_number
======== | =======================
John Doe | XXX-XX-1234
Jane Doe | XXX-XX-5678

Vamos praticar!

Redshift 入门