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MDEV-15619 using CONVERT() inside AES_ENCRYPT() in an UPDATE corrupts data

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This commit is contained in:
Alexander Barkov
2018-03-26 10:33:58 +04:00
parent a2e47f8c41
commit 6aff5fa27a
4 changed files with 90 additions and 6 deletions
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37
mysql-test/r/func_str.result
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@ -4551,3 +4551,40 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select char(0xdf) AS `CHAR(0xDF)`
#
# MDEV-15619 using CONVERT() inside AES_ENCRYPT() in an UPDATE corrupts data
#
CREATE TABLE t1 (
id int(11) NOT NULL,
session_id varchar(255) DEFAULT NULL,
directory mediumtext,
checksum int(10) DEFAULT NULL,
last_update datetime DEFAULT NULL,
PRIMARY KEY (id),
KEY lastupdate (last_update)
) DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,'',NULL,38391,'2017-06-24 07:35:28');
UPDATE t1 SET directory = AES_ENCRYPT(CONVERT('test stringrererejrjerjehrjekhrjkehrjkehrkjehrjkerhkjehrjekrhkjehrkjerhjkehrkjehrkjehrjkehrjkehrjkehrjkerjkehrjkehrjkehrjke rekjhrejrejhrjehgrehjgrhjerjhegrjherejhgrjhegrjehgrjhegrejhrgjehgrjhegrjhegrjhergjhegrjhegrhjegrjerhthkjjkdhjkgdfjkgjkdgdjkfjkhgjkfdhjgjkfdghkjdfghkjfdghfjkdghkdjfghdkjfghfjkdghfkjdghkjfdghfkjdghfkdjghfkjdghfdjkghjkdfhgdfjkghfjkdghfjkdghfjdkghfjkdghkfjdghfkjdghfkjdghkjdfghfjdkghjkfdghkjdfhgjkdfhgjkfdhgkjfdghkfjdhgkjfdgdjkejktjherjthkjrethkjrethjkerthjkerhtjkerhtkjerhtjkerhtjkerhtjkrehtkjerhtkjrehtjkrehtkjrehtkjerhtkjerhtjkrehtkjrehtjkrehtkjrethjkrethkjrehtkjethjkerhtjkrehtjkretkjerhtkjrehtjkerhtjkrehtjrehtkjrekjtrfgdsfgdhjsghjgfdhjsfhjdfgdhjshjdshjfghjdsfgjhsfgjhsdfgjhdsfgjdhsfgsjhfgjhsdfgsdjhfgjdhsfdjshfgdsjhfgjsdhfdjshfgdjhsfgdjshfgjdhsfgjhsdfgjhsdgfjhsdgfjhdsgfjhsgfjhsdgfjhdsgfhjsdehkjthrkjethjkre' USING latin1), '95F5A1F52A554'), last_update= NOW();
SELECT directory IS NULL FROM t1;
directory IS NULL
0
DROP TABLE t1;
CREATE TABLE t1 (
id int(11) NOT NULL PRIMARY KEY,
directory mediumtext
) DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,AES_ENCRYPT(CONVERT(REPEAT('a',800) USING latin1),'95F5A1F52A554'));
SELECT AES_DECRYPT(directory,'95F5A1F52A554') FROM t1;
AES_DECRYPT(directory,'95F5A1F52A554')
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
DROP TABLE t1;
SET @enc=AES_ENCRYPT(REPEAT(_latin1'a',800),'95F5A1F52A554');
CREATE TABLE t1 (
id int(11) NOT NULL PRIMARY KEY,
directory mediumtext
) DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,AES_DECRYPT(CONVERT(@enc USING binary),'95F5A1F52A554'));
SELECT * FROM t1;
id directory
1 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
DROP TABLE t1;