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CREATE ENCRYPT RULE

描述

CREATE ENCRYPT RULE 语法用于创建数据加密规则。

语法定义

CreateEncryptRule ::=
  'CREATE' 'ENCRYPT' 'RULE' ifNotExists? encryptDefinition (',' encryptDefinition)*

ifNotExists ::=
  'IF' 'NOT' 'EXISTS'

encryptDefinition ::=
  ruleName '(' 'COLUMNS' '(' columnDefinition (',' columnDefinition)*  ')' ')'

columnDefinition ::=
  '(' 'NAME' '=' columnName ',' 'CIPHER' '=' cipherColumnName (',' 'ASSISTED_QUERY' '=' assistedQueryColumnName)? (',' 'LIKE_QUERY' '=' likeQueryColumnName)? ',' encryptAlgorithmDefinition (',' assistedQueryAlgorithmDefinition)? (',' likeQueryAlgorithmDefinition)? ')' 

encryptAlgorithmDefinition ::=
  'ENCRYPT_ALGORITHM' '(' 'TYPE' '(' 'NAME' '=' encryptAlgorithmType (',' propertiesDefinition)? ')'

assistedQueryAlgorithmDefinition ::=
  'ASSISTED_QUERY_ALGORITHM' '(' 'TYPE' '(' 'NAME' '=' encryptAlgorithmType (',' propertiesDefinition)? ')'

likeQueryAlgorithmDefinition ::=
  'LIKE_QUERY_ALGORITHM' '(' 'TYPE' '(' 'NAME' '=' encryptAlgorithmType (',' propertiesDefinition)? ')'

propertiesDefinition ::=
  'PROPERTIES' '(' key '=' value (',' key '=' value)* ')'

tableName ::=
  identifier

columnName ::=
  identifier

cipherColumnName ::=
  identifier

assistedQueryColumnName ::=
  identifier

likeQueryColumnName ::=
  identifier

encryptAlgorithmType ::=
  string

key ::=
  string

value ::=
  literal

补充说明

  • CIPHER 指定密文数据列，ASSISTED_QUERY 指定辅助查询列，LIKE_QUERY 指定模糊查询列；
  • encryptAlgorithmType 指定加密算法类型，请参考 加密算法；
  • 重复的 ruleName 将无法被创建；
  • ifNotExists 子句用于避免出现 Duplicate encrypt rule 错误。

示例

创建数据加密规则

CREATE ENCRYPT RULE t_encrypt (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc')))),
(NAME=order_id, CIPHER =order_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc')))))
)),
t_encrypt_2 (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc')))),
(NAME=order_id, CIPHER=order_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc'))))
));

使用 ifNotExists 子句创建数据加密规则

CREATE ENCRYPT RULE IF NOT EXISTS t_encrypt (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc')))),
(NAME=order_id, CIPHER =order_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc'))))
)),
t_encrypt_2 (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc')))),
(NAME=order_id, CIPHER=order_cipher,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc'))))
));

保留字

CREATE、ENCRYPT、RULE、COLUMNS、NAME、CIPHER、ASSISTED_QUERY、LIKE_QUERY、ENCRYPT_ALGORITHM、ASSISTED_QUERY_ALGORITHM、LIKE_QUERY_ALGORITHM、TYPE、TRUE、FALSE

相关链接