# Implementation of encryption technology

Source: Internet
Author: User

For security issues, has always been the focus of attention, see the Internet on the decryption of the site a lot of, however, we also have to try to think about the strategy.

`http://www.md5.com.cn/currently supports MD5 CFS encryption algorithm http://www.xmd5.org/   Support MD5 and various MD5 of the mutation encryption algorithm to crack, recently seems to have just revised http://www.cmd5.com/   support MD5 Decrypt http://  www.freerainbowtables.com/a hash cracking station abroad, support 32-bit MD5,NTLM,LM,SHA1 and other cryptographic algorithms to crack`
Encryption hack website

MD5 encryption Technology (Message digest algorithm version fifth).

The principle is: Generate 128-bit hash values (32 characters) for the input information

Scenarios used: Digital signature, password encryption, password encryption.

MD5 is not very safe, the usual method of adding security is:

(1) Add salt: Insert a random string at a fixed position in clear text and then MD5 again.

(2) First encryption, after the chaos sequence: first MD5 the plaintext, and then encrypt the resulting MD5 string of characters to disorderly order.

In short, the hacker is to breach the server database is not able to correctly draw clear text.

Base 64 Encryption technology:

(1) Very common encryption technology.

(2) binary data can be converted to "string"

(3) After encoding the result is "A-Z", "A-Z", "+", "-", and auxiliary symbol "=" Of course auxiliary symbols are not necessary to appear.

Shai Encryption Algorithm (security hashing algorithm designed by US security Agency):

Generates a unique 140-bit hash value for the information entered, (40 bytes) with frequent security.

RSA Encryption algorithm:

Algorithm principle: It is easy to multiply two large primes, but it is extremely difficult to factorization the product, so the product can be exposed as the encryption key.

Look at the internet is how can say the reference as long as the key is long enough, in the current technological development situation can not be cracked. is an algorithm capable of simultaneous user encryption and digital signature, and is one of the best public-key algorithms so far.

Implementation of encryption technology

Related Keywords:

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.

## A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

• #### Sales Support

1 on 1 presale consultation

• #### After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

• Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.