Passwords in the system usually need to be stored in the system in the form of ciphertext, so it is usually necessary to encrypt the plaintext password during the operation.The way of encryption can be divided into: bidirectional encryption one-way
PBKDF2 (password-based Key derivation Function).Encrypted through a hashing algorithm. Because the hashing algorithm is unidirectional, data of any size can be converted to a fixed-length "fingerprint" and cannot be reversed. Also, the result of the
The password is stored in one-way hash to ensure the security of the user's password after the database is detached.Because of the existence of the rainbow table attack method, it is generally considered that one-way algorithms such as MD5 and sha1
There are many methods to save a user password as a key. For example, the simplest method is to directly convert a string into bytes.
StringPassword= "Mgen! ";
VaREncoding= New Unicodeencoding(False,False);
Byte[] Bytes=Encoding.Getbytes
In the first half of this paper, the significance of KDF function, the second part discusses the feasibility of KDF calculation in front end.ObjectiveAlmost every once in a while, you will hear the "XX site is towed Library" news. Then there will be
See a very good article, introduced the system in the password to save the various problems encountered and solutions.
Not much to say, directly on the code, the original link in the last
/* * Password Hashing with PBKDF2
Blockchain Enthusiast (qq:53016353)
Scrypt was developed by the famous FreeBSD hacker Colin Percival for his backup service Tarsnap.
Scrypt not only takes a long time to compute, but also consumes more memory, making it difficult to compute
Wallets are used on public chains such as Bitcoin/Ethereum. Wallets are primarily used to manage the user's private key, and the user's digital currency on the chain, which is the signature of the transaction with the private key. The private key
This article mainly introduces about YII2 encryption and decryption of the introduction, has a certain reference value, now share to everyone, the need for friends can refer to
Related environment
OS and IDE MacOS 10.13.1 & PhpStorm2018.1.2
Development Security Guide: How to securely store user passwords 0 × 00 preface
First, if you are not familiar with the concept and use of cryptography, or you are in need of some cryptographic guidance, I recommend that you read this article.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.