Experience

RaonSecure 라온시큐어

• South Korea
• Information Technology & Services
• 1 - 100 Employee

• Technical Team Manager

  • Jul 2020 - Present

  Blockchain Research, DID Core Design, Blockchain analysis, Upgrade

• Blockchain Team Lead, FIDO

  • Dec 2015 - Present

  <2020.07 ~ 2021.06> : blockchain research, blockchain Core Development, did Core Development a. Development of hyperledger fabric DID (decentralized identifier) solution. b. Research and development of ZKP module used for blockchain identity authentication. c. Open source analysis (hyperledger indy, aries, etc). e. Omnione blockchain (eos) consensus failure analysis. f. Omnione blockchain (eos) smart contract development.<2019. 07 ~ 2020.06> : Leading mainnet development[omnione mainnet components] a. Node development (EOS fork), open source analysis and modify. b. Smart Contract Development (C++), DID logic design and develop. c. Service app development (android, ios) : Transaction driver. d. Manager Console Development : Web components for user. e. Developer site : writing development site for omnione mainnet users.<2019.01 ~ 2019.06> Leading blockchain service development (Omnione Simple Auth) a. iOS app development b. server development c. smart contract development<2018.10 ~ 2018.12> DID core module development a. Omnone Core SDK development (ios, android)<2018.01 ~ 2018.10> : FIDO 2 specification analysis, core development, certification a. Acquired FIDO2 certification b. FIDO2 iOS BLE authentication device development<2015.11 ~ 2018.01> : FIDO UAF analysis, development, certification a. Developed FIDO TrustZone PIN authentication device b. FIDO Solution OnePass iOS Development and Maintenance c. FIDO specification analysis, Fido iOS Core module development



Fasoo

• United States
• Software Development
• 1 - 100 Employee

• Research Engineer

  • Feb 2013 - Nov 2015

  <2015.01~ 2015.10> : iOS App "DigitalPage" Develop & Launchhttps://www.digitalpage.mea. Work Overview : iOS service app development b. Detail : Cloud data sync engine / UI developmentc. Service Overview : Daily Note, AI note link, daily diary.d. Business Performance : Appstore launch and currently in service<2014.06 ~ 2014.12> : Mac App “Folder Cryptor" Develop & Global Launch https://www.foldercryptor.coma. Work Overview : Mac application development b. Detail : Real-time encryption/decryption processing, file path redirection, Mac UIc. Service Overview : Realtime data encryption and decryption while using data file in the secure folder.d. Business Performance : Global service launch<2013.03 ~ 2014.05> : Mac App “DigitalQuick” Develop & Global Launch https://www.foldercryptor.coma. Work Overview : Mac application development b. Detail : file right management for mac, cloud share, encryptionc. Service Overview : Mac DRM service for Users.d. Business Performance : Global service launch



Lumensoft

• IT Services and IT Consulting
• 1 - 100 Employee

• Research Engineer

  • Jul 2008 - Dec 2012

  <2012.01~ 2012.12> iOS Application “TouchEn Appfree” https://apps.apple.com/us/app/앱프리-touchen-appfree/id506292960a. Work Overview : iOS service app developmentb. Skill to use : PKI, Objective-C, Javac. Service Overview : mobile web browser public certificated. Business Performance : Appstore launch and currently in service<2012.01~ 2012.12> Copying Certificate Server using QR imagea. Work Overview : protocol design, iOS library developc. Skill to use : Objective-C, ZXingd. Service Overview : Copy the certificate with QR scane. Business Performance : Wooribank, IBK bank, Shinhan bank Service Open<2012.01~ 2012.12> iOS Application “폰번호송금” a. Work Overview : iOS app developc. Skill to use : Objective-Cd. Service Overview : send money with phone number<2009.09 ~ 2010.08> PKI module for smartphone a. Work Overview : PKI (Public Key Infrastructure) library development, certificate management b. Service Overview : PKI based authentication module for smartphone c. Skill to use : Objective-C, UI, finger print d. Business Performance : Insurance, securities, financial company smartphone PKI function<2009.09 ~ 2010.08> Server develop “Mobisign” a. Work Overview : Server develop (C lang), Subscriber Management Tool (Java) b. Service Overview : PKI plugin app for pc browser c. Skill to use : C, Java, SWT d. Business Performance : Open a server used by multiple customers



Softforum

• Security Software Engineer

  • Jan 2007 - Jun 2008

  * develop E2E encryption module for various environment (POS, mobile)* PKI module (PKCS) develop for WIPI mobile* SDK develop for mobile banking (x509, certificate copy, signature) * develop E2E encryption module for various environment (POS, mobile)* PKI module (PKCS) develop for WIPI mobile* SDK develop for mobile banking (x509, certificate copy, signature)