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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
Channy Yun | |
|---|---|
 Yun in 2013 | |
| Born | January 19, 1973 South Korea |
| Employer | Amazon Web Services |
| Known for | Cloud computing, Open-source software, HTML5, Mozilla |
| Korean name | |
| Hangul | 윤석찬 |
| Hanja | 尹錫璨 |
| RR | Yun Seokchan |
| MR | Yun Sŏkch'an |
| Website | channy |
Seokchan "Channy" Yun (윤석찬; born January 19, 1973) is a South Korean technologist. He promotes Web standards for Web compatibility issues in South Korea, with a particular focus on encouraging adoption of Firefox.[1] He was an invited expert in W3C and contributed Web standards such as HTML5[2] and Web cryptography API.[3] He also founded WebStandards Korea[4] as a member of the International Liaison Group of Web Standards Project, which is an active advocate for Web standards and best practices either in their country of origin or domicile.[5]
Yun is known as one of the powerful voices of open-source software on Twitter, according to Chris Preimesberger of eWeek, who described him as "one of South Korea's top tech writers".[6] Yun is a well-known technical writer that maintains his own blog, having written over 50 columns on ZDNet Korea,[7] and was Asian editorial adviser of Lift Conference Asia. He was one of the founders of BarCamp Seoul and WebAppsCon.
He formerly held the position of CTO of Nine4u, South Korea's first Korean online music & radio service,[8] before joining Daum Communications, the operator of the Daum web portal. At Daum, he was a API evangelist, supporting third-party developers using Daum's Open API[9] and started the first Korean Open-source software class as an adjunct professor, Dept. of Computer Engineering, at Jeju National University.[10]
He researched big data analysis with semantic web and medical informatics at Seoul National University[11] and focused on the Open-source software strategy of Big Data at Daum.[12]
He now works for Amazon Web Services as a technical evangelist in South Korea[13] and is an author of the AWS News Blog,[14] writing launch posts for new AWS services.
He is also known as the first Korean YouTube video uploader on August 9, 2005.[15]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
The Web Cryptography API is the World Wide Web Consortium's (W3C) recommendation for a low-level interface that would increase the security of web applications by allowing them to perform cryptographic functions without having to access raw keying material. This agnostic API would perform basic cryptographic operations, such as hashing, signature generation and verification and encryption as well as decryption from within a web application.
Seokchan "Channy" Yun (윤석찬; born January 19, 1973) is a South Korean technologist. He promotes Web standards for Web compatibility issues in South Korea, with a particular focus on encouraging adoption of Firefox. He was an invited expert in W3C and contributed Web standards such as HTML5 and Web cryptography API. He also founded WebStandards Korea as a member of the International Liaison Group of Web Standards Project, which is an active advocate for Web standards and best practices either in their country of origin or domicile. Yun is known as one of the powerful voices of open-source software on Twitter, according to Chris Preimesberger of eWeek, who described him as "one of South Korea's top tech writers". Yun is a well-known technical writer that maintains his own blog, having written over 50 columns on ZDNet Korea, and was Asian editorial adviser of Lift Conference Asia. He was one of the founders of BarCamp Seoul and WebAppsCon. He formerly held the position of CTO of Nine4u, South Korea's first Korean online music & radio service, before joining Daum Communications, the operator of the Daum web portal. At Daum, he was a API evangelist, supporting third-party developers using Daum's Open API and started the first Korean Open-source software class as an adjunct professor, Dept. of Computer Engineering, at Jeju National University. He researched big data analysis with semantic web and medical informatics at Seoul National University and focused on the Open-source software strategy of Big Data at Daum. He now works for Amazon Web Services as a technical evangelist in South Korea and is an author of the AWS News Blog, writing launch posts for new AWS services. He is also known as the first Korean YouTube video uploader on August 9, 2005.
The tables below compare cryptography libraries that deal with cryptography algorithms and have application programming interface (API) function calls to each of the supported features.
Web Authentication (WebAuthn) is a web standard published by the World Wide Web Consortium (W3C). It defines an API that websites use to authenticate with WebAuthn credentials (commonly known as passkeys) and outlines what WebAuthn authenticators should do. It solves many of the issues of traditional password-based authentication by verifying the user's identity with digital signatures. Although WebAuthn is often touted as a complete replacement for passwords, most websites that implement it continue to use passwords in some capacity. To use WebAuthn, users require a compatible authenticator. The standard does not specify how to store the keys required for signing, so a variety of authenticator types can be used. The most common authenticator type is a platform authenticator, which is built into the operating system of the device. Common platform authenticators include Android, Apple Keychain and Windows Hello. These make use of hardware security features (such as TEE and TPM), and often sync credentials between devices for ease-of-use. Another common authenticator type is a roaming authenticator, where a separate hardware device authenticates the user by connecting over USB, Bluetooth Low Energy, or near-field communications (NFC). Most smartphones can be used as roaming authenticators, and dedicated physical security keys are also used. WebAuthn is effectively backward compatible with FIDO Universal 2nd Factor (U2F) as they both use the CTAP protocol. Password managers can also be used as an authenticator, often with cloud sync. Where credentials sync is not viable or possible, WebAuthn Hybrid Transport can be used to access credentials stored on another authenticator such as a smartphone. Like legacy U2F, WebAuthn is resistant to some phishing attacks as the authenticator only offers credentials that were registered on the same website. However, unlike U2F, WebAuthn can be implemented in a passwordless manner. Moreover, a roaming hardware authenticator resists malware, since the keys are stored on a separate device, which prevents the malware from accessing them directly. The WebAuthn Level 1 and 2 standards were published as W3C Recommendations on 4 March 2019 and 8 April 2021 respectively. A Level 3 specification progressed through several Candidate Recommendation Snapshots during 2026, and in July 2026 the W3C proposed advancing it to full Recommendation status.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Mae Jemison, aboard Space Shuttle Endeavour in 1992.