高华气象

CEO Blog

A virtual club to communicate with peers and users in the cryptographic industry
Meet friends on blog, it is my mission to popularize cryptographic knowledge, cryptographic application and zero trust ideas.

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  • ZT Browser’s Plan for 2024

    ZT Browser’s Plan for 2024

    ZT Browser will do four things in 2024, two trusted root programs for document certificate and intranet SSL certificate, and two products research and development for email encryption automation service and document signing automation service.

    March 18, 2024Read more
    In-depth interpretation of the U.S. Federal Zero Trust Strategy (II): DNS Security

    In-depth interpretation of the U.S. Federal Zero Trust Strategy (II): DNS Security

    DNS security is very important, encrypted DNS is a must, and using the SM2 algorithm to encrypt DNS is the cornerstone of China Internet security. To achieve SM2 DNS encryption, it is necessary to automatically manage SM2 SSL certificates to ensure the uninterrupted and continuous service of encrypted DNS services.

    January 29, 2024Read more
    In 2023, ZoTrus Contributed China's Solutions to Global Internet Security

    In 2023, ZoTrus Contributed China's Solutions to Global Internet Security

    Looking back on 2023, ZoTrus has not failed to live up to its glory and contributed China's solutions to global Internet security. Looking forward to 2024, ZoTrus will continue to provide more innovative products and services for global Internet security.

    December 29, 2023Read more
    What is LTV? How to make document digital signature valid for a long time?

    What is LTV? How to make document digital signature valid for a long time?

    This article clearly explains LTV and explains why Adobe Reader can display the LTV feature even if the document does not have a timestamp. It also explains clearly why ZT Browser changed the name of LTV with timestamp to "Strict LTV". Supporting LTV technology is a must for document digital signature.

    October 16, 2023Read more
    Document security needs to be “Visible”

    Document security needs to be “Visible”

    E-document readers have no way of knowing whether the identity of the document publisher claimed by the PDF document is authentic and trustworthy. How to do? ZT Browser PDF Reader has 5 innovative UIs to make documents security "visible". This article explains these 5 major innovations in details.

    October 11, 2023Read more
    All browsers will display the digital signature of PDF documents as default

    All browsers will display the digital signature of PDF documents as default

    The browser can not only browse PDF documents seamlessly, but also should be able to verify digital signatures in PDF documents and display the identity information of the digital signer. This will be the default function of all browsers, and ZT Browser is the first in the world to innovate and realize it perfectly.

    October 11, 2023Read more
    All e-documents require zero trust

    All e-documents require zero trust

    All e-documents without digital signatures are not trustworthy, because anyone can easily create a PDF document that claims to be issued by someone or a certain organization. How to do?

    October 11, 2023Read more
    ZT Browser Makes Certificate Transparency more Transparent

    ZT Browser Makes Certificate Transparency more Transparent

    ZT Browser displays certificate transparency information under the padlock in the address bar, including international certificate transparency and SM2 certificate transparency, so that users can know who provides certificate transparency services, which is conducive to the healthy development of certificate transparency ecology.

    August 08, 2023Read more
    How does the browser identify the type of SSL certificate?

    How does the browser identify the type of SSL certificate?

    This article explains clearly how the browser identifies the type of SSL certificate. The author hopes that all ZT Browser trusted CA can upgrade the CA system in time and add the correct certificate type OID to the issued SM2 SSL certificate so that the Browser can display it correctly.

    August 08, 2023Read more
    How long should the SM2 SSL certificate validity period?

    How long should the SM2 SSL certificate validity period?

    This article clarifies how the validity period of the SSL certificate is determined and gives the principle of determining the validity period of the SM2 SSL certificate - refer to international standards. It is hoped that the CA trusted by ZT Browser can adjust the SM2 CA system in time to ensure the security of the SM2 SSL certificate.

    August 08, 2023Read more
    What kind of SM2 browser is needed for the cryptography compliance reconstruction?

    What kind of SM2 browser is needed for the cryptography compliance reconstruction?

    This article explains in detail what a SM2 browser is, what kind of SM2 browser users need, and what are the special differences from the ZT Browser. Welcome to choose ZT Browser, a completely free, clean, and ad-free SM2 browser that exclusively supports the SM2 Certificate Transparency in the world.

    August 08, 2023Read more
    Richard_wang

    Dear Readers,

    Since the subtitle of the CEO blog is “Meet friends on blog”, as a scientific and technological worker rather than a literato, please do not care whether the grammar of the blog post is correct, but whether the article can help you understand PKI technology, cryptographic and zero trust. I have 30 years of experience in the IT industry, including CA, cryptography, software development, Internet, Internet security etc. Over the years, I have participated in many important domestic and international academic conferences, to understand the differences between Chinese and Western cultures and the latest technological frontiers. And has published many academic articles in newspapers and periodicals. In company operation, the two companies I founded have been acquired by a public listed Internet security company, and one of them is a CA that had won the sixth place in the world in the SSL certificate market and the first in the Chinese market.

    I firmly believe that my article will bring value to readers both academically and company operation. thanks.

    Welcome to follow the official WeChat of ZoTrus: zotrus, which will push each new blog in real time, so that you will not miss every wonderful blog post.

    Richard wang
    Dec. 9, 2021, in Shenzhen, China