创建列加密规则

-- 设置透明表空间加密的方式，取值参见 tde_method（如 internal、obcloud、ocp 等）
ALTER SYSTEM SET tde_method = '<encryption_method>';
-- 创建 Keystore
ADMINISTER KEY MANAGEMENT CREATE KEYSTORE keystore_name IDENTIFIED BY oceanbase_password;
-- 开启 Keystore
ADMINISTER KEY MANAGEMENT SET KEYSTORE OPEN IDENTIFIED BY oceanbase_password;
-- 设置主密钥，首次执行需要等待 20 秒使主密钥生效
ADMINISTER KEY MANAGEMENT SET KEY IDENTIFIED BY oceanbase_password;

CREATE SENSITIVE RULE <rule_name> 
ON <sensitive_field_list>
USING ENCRYPTION [ = <encryption_method>];

DROP SENSITIVE RULE <rule_name>;

-- 新增敏感列
ALTER SENSITIVE RULE <rule_name> ADD COLUMN <sensitive_field_list>;
-- 删除敏感列
ALTER SENSITIVE RULE <rule_name> DROP COLUMN <sensitive_field_list>;
-- 启用规则
ALTER SENSITIVE RULE <rule_name> ENABLE;
-- 禁用规则
ALTER SENSITIVE RULE <rule_name> DISABLE;
-- 修改加密算法
ALTER SENSITIVE RULE <rule_name> USING ENCRYPTION [= <encryption_method>];

-- 创建敏感规则 r1, 保护 tbl1(a), tbl2(b, c), user2.tbl3(e,f);
-- 不加参数时使用默认加密算法 AES-256-ECB，等价于 USING ENCRYPTION = 'aes-256'
CREATE SENSITIVE RULE r1 on tbl1(a), tbl2(b, c), user2.tbl3(e,f) 
USING ENCRYPTION;

-- 创建敏感规则 r2, 保护 tbl4(x, y), tbl5(z);
-- 使用 SM4-CBC 加密算法
CREATE SENSITIVE RULE r2 on tbl4(x, y), tbl5(z) 
USING ENCRYPTION = 'sm4-cbc';

DROP SENSITIVE RULE r1;

-- 向敏感规则 r1 中增加 tbl2(c), user2.tbl3(x);
ALTER SENSITIVE RULE r1 ADD COLUMN tbl2(c), user2.tbl3(x);

-- 从敏感规则 r1 中删除 tbl2(c)
ALTER SENSITIVE RULE r1 DROP COLUMN tbl2(c);

-- 启用敏感规则 r1
ALTER SENSITIVE RULE r1 ENABLE;

-- 禁用敏感规则 r1
ALTER SENSITIVE RULE r1 DISABLE;

-- 修改敏感规则 r1 的加密算法为默认算法
ALTER SENSITIVE RULE r1 USING ENCRYPTION;

-- 修改敏感规则 r1 的加密算法为 sm4-cbc
ALTER SENSITIVE RULE r1 USING ENCRYPTION = 'sm4-cbc';