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加密和压缩函数

更新时间:2018-04-27 22:09:33

DRDS 支持如下加密和压缩函数:

函数名 描述
AES_DECRYPT() Decrypt using AES
AES_ENCRYPT() Encrypt using AES
COMPRESS() Return result as a binary string
MD5() Calculate MD5 checksum
UNCOMPRESS() Uncompress a string compressed
UNCOMPRESSED_LENGTH() Return the length of a string before compression

不支持函数列表

对比 MySQL5.7,DRDS 有如下加密和压缩函数暂不支持:

函数名 描述
ASYMMETRIC_DECRYPT() Decrypt ciphertext using private or public key
ASYMMETRIC_DERIVE() Derive symmetric key from asymmetric keys
ASYMMETRIC_ENCRYPT() Encrypt cleartext using private or public key
ASYMMETRIC_SIGN() Generate signature from digest
ASYMMETRIC_VERIFY() Verify that signature matches digest
CREATE_ASYMMETRIC_PRIV_KEY() Create private key
CREATE_ASYMMETRIC_PUB_KEY() Create public key
CREATE_DH_PARAMETERS() Generate shared DH secret
CREATE_DIGEST() Generate digest from string
DECODE() (deprecated 5.7.2) Decodes a string encrypted using ENCODE()
DES_DECRYPT() (deprecated 5.7.6) Decrypt a string
DES_ENCRYPT() (deprecated 5.7.6) Encrypt a string
ENCODE() (deprecated 5.7.2) Encode a string
ENCRYPT() (deprecated 5.7.6) Encrypt a string
OLD_PASSWORD() Return the value of the pre-4.1 implementation of PASSWORD
PASSWORD() (deprecated 5.7.6) Calculate and return a password string
RANDOM_BYTES() Return a random byte vector
SHA1(), SHA() Calculate an SHA-1 160-bit checksum
SHA2() Calculate an SHA-2 checksum
VALIDATE_PASSWORD_STRENGTH() Determine strength of password