Hash Code Algorithm

You can implement your own blockchain with less than 200 lines of Go code! Sounds interesting? What better way to learn than to develop a blockchain of your own? Then let's practice together!

PageRank algorithm PageRank algorithm is Google once Shong "leaning against the Sky Sword", The algorithm by Larry Page and http://www.aliyun.com/zixun/aggregation/16959.html "> Sergey Brin invented at Stanford University, the paper download: The PageRank citation ranking:bringing order to the ...

Blockchain is a new technology that is gradually emerging with the increasing popularity of digital cryptocurrencies such as Bitcoin.

It is the first algorithm that can be used both for data encryption and digital signature. It is easy to understand and operate, and very popular. The name of the algorithm is named after the inventor: Ron Rivest, Adi Shamir and Leonard Adleman. But the security of RSA has not been proved theoretically. It has undergone various attacks and has not yet been completely breached. One, RSA algorithm: First, find out three number, p,q,r, where P,q is two different prime numbers, R is with (P-1) (q-1) coprime number ... p,q ...

In the case of Bitcoin transactions, blockchain trading is not a transaction in the usual sense of hand-delivering, but a transfer. If each transfer needs to construct a transaction data, it would be awkward.

1 Introduction e-mail plays an important role in people's work. According to statistics, the average Chinese per user receives 4.4 mails a week, sends 3.6 emails. But the primary protocol for e-mail, such as SMTP, is delivered in plaintext. This information may be obtained by a third party when it passes through an untrusted internet. In a modern society that attaches importance to information security, it clearly meets the requirements. How can this information be kept confidential without tampering or forgery? The PGP (Pretty-Privacy) described in this article is a kind of software, which is mainly used for electric ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology Hall willing to network support 10 million pv/database caching system is mainly built in hibernate Above the efficient database caching system, which contains a distributed solution, the system has been used to be willing to online, did not find a big problem, I also believe that the system is strong enough to cope with millions of ...

PGP itself is a data security product, what security problems does it have? "No data security system is unbreakable," Philzimmermann, author of PGP, said in the PGP document. "PGP is no exception. We look at its security vulnerabilities in order to let users know what will degrade the security of PGP and how to avoid them. Here are the vulnerabilities: passwords or private key leaks, public key tampering, files that you delete are restored, viruses and Trojan horses, physical security is violated (physical security refers to the security of physical resources such as computers) 、...

In the modern information society, when the email is popular, the security problem is also very prominent. In fact, the process of e-mail transmission is the process of repeated replication on the network, the network transmission path is uncertain, it is easy to be unknown identity of the theft, tampering, and even malicious destruction, to send and receive both sides trouble. Information encryption to ensure the security of the transmission of e-mail has become an urgent demand for the vast number of e-mail users. The appearance and application of PGP solves the problem of secure transmission of e-mail well. Combining the traditional symmetric encryption with the public key method, we have two ...

The two-day RSA 2010 conference ended in Beijing, but many in the industry and Internet security enthusiasts are still feeling the meaning of the end. So, 51CTO as a guest media, the General Assembly of the relevant reports. Here we'll tidy up the wonderful speeches in the conference. The following is a lecture by Assistant professor Haibo of the Institute of Parallel Processing, Fudan University, on the subject of the application of the trustworthy structure in the privacy and security of cloud computing services. See the RSA 2010 Information Security International Forum feature for more details. Haibo: Good afternoon! I am Chen from Fudan University.