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.

  • Recommended
  • CryptoEco
  • PQC
  • ZT Browser
  • Website Security
  • Application Security
  • Email Security
  • Document Security
  • Identity Trusted
  • Zero Trust
  • Other Topics
    • From SSL Red Ocean to S/MIME Blue Ocean

    From SSL Red Ocean to S/MIME Blue Ocean

    Free certificates now dominate over 90% of the SSL market. The S/MIME email certificate space remains a blue ocean with far greater potential. ZTmail and the AutoCert Marketplace invite CAs worldwide to join this emerging ecosystem. Early participants will secure advantageous positions.

    August 20, 2026Read more
    To ZoTrus at 5: ZTmail Is Coming

    To ZoTrus at 5: ZTmail Is Coming

    ZoTrus Technology turns five. ZTmail's release is delayed, but only to make it better. From HTTPS to Email, five years of building toward one goal: making cryptography simple and automation real. ZTmail, S/MIME encryption for everybody, automated. AI, your key.

    August 20, 2026Read more
    Why is email encryption harder to popularize than HTTPS?

    Why is email encryption harder to popularize than HTTPS?

    HTTPS succeeded through automation and browser warnings, but email encryption stalled for decades due to certificate configuration, public key exchange, and key management. ZTmail breaks the deadlock with automated certificate management and visible identity display, making email encryption as default as HTTPS.

    August 14, 2026Read more
    Webmail vs. Email Client: Which Is More Secure?

    Webmail vs. Email Client: Which Is More Secure?

    Traditional email clients make encryption complex. Webmail offers convenience but no privacy. ZTmail solves this dilemma with automated certificates and bring-your-own AI, making every email encrypted by default, secure and smart.

    August 13, 2026Read more
    What Kind of Email Client Do We Really Need?

    What Kind of Email Client Do We Really Need?

    Email clients haven't evolved in 31 years. Emails are stored in plain text; encryption remains complex and difficult. ZTmail changes this, automated encryption, digital signatures, identity display, AI-powered. Email security made simple. Public beta launches August 20.

    August 12, 2026Read more
    Understanding S/MIME Email Encryption (Part II)

    Understanding S/MIME Email Encryption (Part II)

    This article explains the difficulties encountered in the implementation of S/MIME technology. ZoTrus Technology draws on the ideas of HTTPS automation technology and completely solves the problem of popularizing S/MIME email encryption by realizing email certificate automation, public key exchange automation and key management automation.

    February 24, 2025Read more
    Understanding S/MIME Email Encryption (Part I)

    Understanding S/MIME Email Encryption (Part I)

    This article explains S/MIME technology, which is currently the only standard email encryption technology in the world and the only technology that has been widely supported by industry. ZoTrus Email Encryption Automation Service uses S/MIME technology to achieve true end-to-end encryption.

    February 17, 2025Read more
    E-contract and E-mail, Two in One

    E-contract and E-mail, Two in One

    This article discusses how electronic contracts and emails can be combined into one. Users can use ZT Browser to complete the digital signing of electronic contracts with one click when sending emails. This is simpler than signing contracts on traditional e-contract signing platforms that no need to upload the original contract document, and it can better protect the security of users' contract confidential information. It is also completely free.

    November 25, 2024Read more
    The day email encryption becomes commonplace is the day fraud emails die

    The day email encryption becomes commonplace is the day fraud emails die

    Fraud emails have caused a global loss of $55.5 billion over the past decade. This article proposes a complete solution to eradicate email fraud - popularizing email encryption application. This article also shows how ZT Browser UI specifically displays email identity information, which effectively prevents email fraud.

    November 14, 2024Read more
    How does ZT Browser automate key management?

    How does ZT Browser automate key management?

    The third challenge of S/MIME email encryption is key management, this article discloses how ZT Browser automates key management, and only by automatically managing keys can email encryption be truly automated.

    November 07, 2024Read more
    How does ZT Browser realize the automatic email certificate management?

    How does ZT Browser realize the automatic email certificate management?

    This article explains how ZoTrus Technology realizes automatic email certificate management, only by automatically configuring email certificates can automatic-email-encryption be realized, and only by popularizing email encryption can we ensure the security of email content in transit and in the cloud.

    October 30, 2024Read more
    Cloud and Privacy Can Be Both

    Cloud and Privacy Can Be Both

    This article reveals in advance how the ZT Browser Email Encryption Service uses email encryption technology to protect the confidential information of users' address books, cleverly solving the contradiction between cloud services and privacy protection, allowing both to be achieved.

    October 28, 2024Read more
    Email encryption still has a long way to go with a heavy load

    Email encryption still has a long way to go with a heavy load

    This article summarizes the advantages and disadvantages of various email encryption solutions and reviews the author's 20 years of email encryption research. The author hope that readers will have a clear understanding of email encryption technology and choose the right email encryption solution.

    October 22, 2024Read more
    Email is bound to become a core application of Web 3.0

    Email is bound to become a core application of Web 3.0

    This article summarizes the development history of the Web and draws an important conclusion: Email will become a core application of Web 3.0, and to achieve this goal, email encryption automation is the key.

    October 16, 2024Read more
    Only by Automating End-to-End Encryption Can Truly ensure Email Security

    Only by Automating End-to-End Encryption Can Truly ensure Email Security

    This article explains what true end-to-end encryption is and what kind of end-to-end encryption users should choose to truly protect the security of their email confidential information. This article also briefly introduces the upcoming ZoTrus email encryption automation solution.

    October 11, 2024Read more
    Email Needs Zero Trust

    Email Needs Zero Trust

    4 billion emails are sent worldwide every month, 90% of cyberattacks start with phishing emails, 97% of people cannot accurately identify phishing email scams, and Gmail blocks more than 100 million phishing emails every day. What do these data means?

    October 09, 2024Read more
    HTTPS encryption automation and email encryption automation

    HTTPS encryption automation and email encryption automation

    This article summarizes the work done by ZoTrus Technology in HTTPS encryption automation. The next hot spot for cryptographic applications will be email encryption automation. This article also clarifies the relationship between HTTPS encryption automation and email encryption automation and the different missions they accomplish.

    September 29, 2024Read more