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Secure e-mail refers to the premise of the transceiver has both an e-mail a digital certificate, the sender by the recipient's digital certificate to encrypt messages so that only the recipient can read encrypted message, delivered on the Internet E-mail information will not be stolen, even if the message is sent to the wrong email or trapped, others cannot see the message content to ensure the security of communication between users.
secure email security and services types of secure email info

Know about Secure Email?

As one of the core enterprise network applications, corporate e-mail for information exchange to provide a strong support. Bring people convenience, such as spam e-mail also brings information, the password is cracked, the message is monitoring and other security issues, with the development of secure e-mail technology, security issues are being encountered by email gradually resolved.

End-to-end Email Security:

End email technology to ensure secure email messages from being sent out to the entire process of receiving, the contents cannot be modified, and undeniable. PGP and S / MIME are two proven end to end secure e-mail standards. PGP (Pretty Good Privacy) is widely used by the one-way hashing algorithm to sign the message content to ensure that the contents of the letter cannot be modified, using public and private key technology to ensure the confidentiality and non-repudiation mail. The sender and the recipient's public key is stored in the open places, public authority can be signed certification by a third party. In the PGP system, trust is a direct relationship between the two.

S / MIME (Secure / Multipurpose Internet Mail Extensions), like PGP, the use of one-way hash algorithms and public key and private key encryption system. However, S / MIME and PGP also has two different aspects: first, S / MIME authentication mechanism relies on the certificate authority hierarchy, all organizations and individuals to the next level of higher-level certification organization responsible for the accreditation, while the top one mutual authentication between the level of the organization (root certificate); the second is S / MIME encrypted signature after the contents of the letter as a special attachment delivery. S / MIME certificate format uses X.509, and online transactions using SSL certificates have some differences. Abroad, Verisign provides S / MIME e-mail certificates to individuals; in the country, there are Beijing VeriSign company to support the standard. On the client side, Netscape Messenger and Microsoft Outlook support S / MIME.

Transport Layer Security

E-mail, including header and message body. To-end secure email technology generally only for the message body encryption and signature, letterhead mail traffic due to the need for addressing and routing, we must ensure the same. In some applications, it may require a header during transmission can be kept confidential, which requires technology transfer as a backing layer. There are two main ways to achieve e-mail security during transmission: one is to use SSL SMTP and SSL POP; the other is the use of VPN or other IP-channel technology.

SMTP (Simple Mail Transfer Protocol) is a standard letter of agreement, POP (mail Protocol) is the recipient of the protocol. SSL SMTP and SSL POP SMTP and POP protocols that run on the established SSL secure transmission channel, while these two agreements made some extensions to better support encryption and authentication and transmission. This model requires the E-mail client software and server-side E-mail servers support SSL certificate and must be installed.

VPN and IP-based channel technology encapsulates all of the TCP / IP services, but also to achieve a method of secure e-mail transmission. This model is often part of a network security mechanism.

Safety and reliability of the mail server

The establishment of a secure e-mail system, relying solely on safety standards is not enough, you also need to protect the security of the mail server itself.Mail server attacks against network intrusion and services can be divided into two kinds of damage. For network intrusion prevention, mainly depends on the rigor of the software programming. For damage prevention services, users can consider preventing external attacks, prevent internal attacks and prevent relay attacks in three areas.

Prevent attacks from external networks, including denial of service connection requests from the specified e-mail addresses and domain names, refused to greater than a predetermined upper limit of the number of the recipient mail, limiting the number of connections a single IP address, shelve suspicious correspondence. To prevent attacks from the internal network, including denial from the specified user, mail service request IP addresses and domain names, enforce SMTP authentication, SSL SMTP and SSL POP achieve to confirm user identity, to prevent relay attacks, including completely closed relay function in accordance with the letter and the recipient's IP address and domain name restrictions flexibly relay, relay, etc. in accordance with the recipient limit.


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What Blockchain and Bitcoin Mean for the Protection Business You may have heard the expressions "blockchain" or "Bitcoin" utilized as a part of tech hovers in the course of recent years. These ideas, alongside intense utilize cases, are changing how we consider money, exchanges and contracts.

Simultaneously, they're likewise changing how we consider the protection business. These progressions will affect protection bearers and operators, and how protection is purchased and sold. That implies understanding blockchain and Bitcoin is essential in case you're hoping to win in the cutting edge protection industry. This post has you secured. It gives meanings of blockchain and Bitcoin, at that point separates why this data is critical to protection industry experts. 


In their book Blockchain Upheaval, Wear and Alex Tapscott clarify that blockchain is "the brilliantly straightforward, progressive convention that enables exchanges to be at the same time mysterious and secure by keeping up a sealed open record of significant worth." The blockchain is intended to store exchange records ("obstructs") in numerous spots, connected to each other (henceforth the "chain" some portion of the name) and straightforward to any client who wishes to see them. Critically, this record can't be changed, so anybody can see a typical and exact rundown of authentic exchanges. Bitcoin is a kind of computerized money that utilization's blockchain innovation. It's not by any means the only one that utilization blockchain, yet is one of the more prevalent alternatives available. Despite the fact that bitcoin is the most famous cryptographic money upheld by blockchain innovation, other advanced monetary forms, for example, ether and litecoin—utilize blockchain innovation too. All bitcoin exchanges are recorded in a decentralized open record that can't be adjusted. In principle, this is something worth being thankful for on the grounds that it makes trust among all gatherings of the exchange and gives an unmistakable trail of procurement that avoids fake exchanges. This is one manner by which blockchain can possibly change exchanges. However, remember that blockchain does not need to be money related. 

Ramifications OF BLOCKCHAIN AND BITCOIN FOR THE Protection Business Blockchain applications like cryptocurency, shrewd contracts and decentralized models for protection will change how protection is appropriated. What's more, when you change how protection is disseminated, you significantly modify how existing players profit and test business as usual. Insurance agencies could utilize the blockchain to make a disseminated record that cultivates straightforwardness, successfully tracks cases and exchange history, and gives perceivability into the authenticity of a claim. Brilliant contracts based on the blockchain can balance deceitful claims by recording exchange history on people in general system, which would dismiss different cases for a similar occasion. This could spare the business billions and open up gigantic chances to make huge measures of significant worth for buyers. Cryptocurriencies can make trust amongst safety net providers and their clients could make trust. For example, INGUARD was the principal insurance agency to acknowledge bitcoin installments. We did this since it was the correct activity for our well informed clients—a state of mind very rare in the protection business today. Consider: 40% of protection premiums turn over every year—and 66% of buyers would purchase protection on the web in the event that they could. 

What's more, and, after its all said and done, they're scarcely happy with back up plan sites. Shoppers don't confide in their safety net providers to put their best advantages on the most fundamental level or execute in a reasonable, break even with way. Bitcoin and blockchain innovation, as we would see it, are devices that can possibly carefully ensure customers, as well as reestablish assume that their needs are being met. Innovation appropriation in the protection business ought to dependably make more an incentive for shoppers. It should expel contact from the purchasing procedure and empower a superior client encounter. What's more, its adequacy ought to be estimated by consumer loyalty, not the amount PR or advertising duplicate another framework creates. That doesn't generally happen. In any case, with the focal points blockchain innovation gives, that could begin to change. Also, that will be advance in reality.