程序包 com.mysql.cj.protocol

类 Security

java.lang.Object

com.mysql.cj.protocol.Security

public class Security
extends Object

Methods for doing secure authentication with MySQL-4.1 and newer.

方法概要

修饰符和类型	方法	说明
static byte[]	scramble411(byte[] password, byte[] seed)	Hashing for MySQL-4.1 authentication.
static byte[]	scramble411(String password, byte[] seed, String passwordEncoding)
static byte[]	scrambleCachingSha2(byte[] password, byte[] seed)	Scrambling for caching_sha2_password plugin.
static void	xorString(byte[] from, byte[] to, byte[] scramble, int length)	Encrypt/Decrypt function used for password encryption in authentication Simple XOR is used here but it is OK as we encrypt random strings

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

xorString

public static void xorString(byte[] from,
                             byte[] to,
                             byte[] scramble,
                             int length)

Encrypt/Decrypt function used for password encryption in authentication Simple XOR is used here but it is OK as we encrypt random strings

参数:

from - IN Data for encryption

to - OUT Encrypt data to the buffer (may be the same)

scramble - IN Scramble used for encryption

length - IN Length of data to encrypt

scramble411

public static byte[] scramble411(String password,
                                 byte[] seed,
                                 String passwordEncoding)

scramble411

public static byte[] scramble411(byte[] password,
                                 byte[] seed)

Hashing for MySQL-4.1 authentication. Algorithm is as follows (c.f. sql/auth/password.c):

 SERVER: public_seed=create_random_string()
 send(public_seed)

 CLIENT: recv(public_seed)
 hash_stage1=sha1("password")
 hash_stage2=sha1(hash_stage1)
 reply=xor(hash_stage1, sha1(public_seed,hash_stage2))
 send(reply)
 

参数:

password - password

seed - seed

返回:

bytes

scrambleCachingSha2

public static byte[] scrambleCachingSha2(byte[] password,
                                         byte[] seed)
                                  throws DigestException

Scrambling for caching_sha2_password plugin.

 Scramble = XOR(SHA2(password), SHA2(SHA2(SHA2(password)), Nonce))
 

参数:

password - password

seed - seed

返回:

bytes

抛出:

DigestException - if an error occurs