How to add salt?
In order to enhance the safety of MD5, in addition to the new algorithm to add a part of the value of salt, salt value is a randomly generated set of strings, can include random uppercase and lowercase letters, numbers, characters,
A simple md5 and salt encryption method (to prevent rainbow tables from hitting the database)
Md5 encryption (or digest algorithm) is not explained if you are familiar with it.
Currently, many database designs prefer to use one-way encryption to
(a) Why do I use hash functions to encrypt passwords
If you need to save a password (such as a website user's password), you should consider how to protect the password data, and it is extremely unsafe to write the password directly to the database
MD5 encryption (or digest algorithm) Everyone is familiar with it, and it doesn't explain.Now a lot of database design like to use one-way encryption to save the password, verify that the password is encrypted once again to do a ciphertext
1, first of all, briefly talk about the development of the regular Web login module (for simple login function, the database fields are not encrypted and encrypted during transmission)
Non-Secure Login module development
Using Jsp+mysql
The database
Nodejs Crypto module MD5 and HMAC encryptionIn Nodejs, you can use the Crypto module to implement a variety of encryption and decryption processing, in the Crypto module contains similar MD5 or SHA-1 these hashing algorithms, we can implement the
We know that if the password is hashed directly, hackers can obtain the hash value of the password, and then query the hash value Dictionary (for example, MD5 password cracking website ), obtain the password of a user.
Add salt can solve this
To protect data with PHP programs and to protect data with PHP programs, you must be careful to protect your data in an increasingly virtualized internet world. This article describes how to encode and encrypt important information (such as
In this increasingly virtual world of the Internet, you have to be careful to protect your own data. This article describes the basics of encoding and encrypting some important information, such as passwords, credit card numbers, or even the entire
MD5 's encryption has been out for a long time, is not a special new technology, the purpose of writing this is also a bit like a note to yourself, after all, the function of encryption is not used, up to write a class, not to call the good, afraid
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