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The YubiKey is a hardware authentication device manufactured by Yubico that allows for a different password for every time it is used. It emits one-time passwords allowing users to be securely logged into their accounts. Some password managers support YubiKey.〔(【引用サイトリンク】url=https://helpdesk.lastpass.com/security-options/multifactor-authentication-options/yubikey-authentication/ )〕〔(【引用サイトリンク】url=http://keepass.info/help/kb/yubikey.html )〕 YubiKey also allows for storing usernames and passwords that do not support one-time passwords. 〔(【引用サイトリンク】url=https://www.yubico.com/about/intro/yubikey/ )〕 Facebook uses YubiKey for employee credentials, and Google supports it for both employees and users. The devices implement the HMAC-based One-time Password Algorithm (HOTP) and deliver the one-time password over the USB HID protocol as if they were normal keyboards. The Neo and Nano devices also implement OpenPGP card protocol using 2048-bit RSA keys. This allows them to sign, encrypt and decrypt messages without exposing the private keys to the outside world. The Neo device also has NFC support. The 4th generation YubiKey, launched on November 16, 2015, supports OpenPGP with 4096-bit RSA keys, PKCS#11 support for PIV smart cards, and a feature that allows for code signing of Docker images.〔(【引用サイトリンク】url=https://www.yubico.com/2015/11/4th-gen-yubikey-4/ )〕〔(【引用サイトリンク】url=https://www.yubico.com/2015/11/yubico-docker-codesign/ )〕 Founded in 2007 by CEO Stina Ehrensvärd, Yubico is a private company with offices in Palo Alto, Seattle, Stockholm and London. ==See also== * One-time password * Password manager 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「YubiKey」の詳細全文を読む スポンサード リンク
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