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CREATE ENCRYPT RULE

Description

The CREATE ENCRYPT RULE syntax is used to create encrypt rules.

Syntax

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' '=' algorithmType (',' propertiesDefinition)? ')'

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

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

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

ruleName ::=
  identifier

columnName ::=
  identifier

cipherColumnName ::=
  identifier

assistedQueryColumnName ::=
  identifier

likeQueryColumnName ::=
  identifier

algorithmType ::=
  string

key ::=
  string

value ::=
  literal

Supplement

  • CIPHER specifies the cipher column, ASSISTED_QUERY specifies the assisted query column,LIKE_QUERY specifies the like query column;
  • algorithmType specifies the encryption algorithm type, please refer to Encryption Algorithm;
  • Duplicate ruleName will not be created;
  • ifNotExists clause used for avoid Duplicate encrypt rule error.

Example

Create an encrypt rule

CREATE ENCRYPT RULE t_encrypt (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ASSISTED_QUERY=assisted_query_user,LIKE_QUERY=like_query_user,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE'))),
(NAME=order_id,CIPHER =order_cipher,ASSISTED_QUERY=assisted_query_order,LIKE_QUERY=like_query_order,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE')))
)),
t_encrypt_2 (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ASSISTED_QUERY=assisted_query_user,LIKE_QUERY=like_query_user,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE'))),
(NAME=order_id, CIPHER=order_cipher,ASSISTED_QUERY=assisted_query_order,LIKE_QUERY=like_query_order,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE')))
));

Create an encrypt rule with ifNotExists clause

CREATE ENCRYPT RULE IF NOT EXISTS t_encrypt (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ASSISTED_QUERY=assisted_query_user,LIKE_QUERY=like_query_user,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE'))),
(NAME=order_id,CIPHER =order_cipher,ASSISTED_QUERY=assisted_query_order,LIKE_QUERY=like_query_order,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE')))
)),
t_encrypt_2 (
COLUMNS(
(NAME=user_id,CIPHER=user_cipher,ASSISTED_QUERY=assisted_query_user,LIKE_QUERY=like_query_user,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE'))),
(NAME=order_id,CIPHER=order_cipher,ASSISTED_QUERY=assisted_query_order,LIKE_QUERY=like_query_order,ENCRYPT_ALGORITHM(TYPE(NAME='AES',PROPERTIES('aes-key-value'='123456abc', 'digest-algorithm-name'='SHA-1'))),ASSISTED_QUERY_ALGORITHM(TYPE(NAME='MD5')),LIKE_QUERY_ALGORITHM(TYPE(NAME='CHAR_DIGEST_LIKE')))
));

Reserved words

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