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Let's Encrypt is an upcoming certificate authority to enter public beta on December 3, 2015〔 that will provide free X.509 certificates for Transport Layer Security encryption (TLS) via an automated process designed to eliminate the current complex process of manual creation, validation, signing, installation and renewal of certificates for secure websites.〔〔 == Overview == The project aims to make encrypted connections in the World Wide Web the default case. By getting rid of payment, web server configuration, validation emails and dealing with expired certificates it is meant to significantly lower the complexity of setting up and maintaining TLS encryption.〔 On a Linux web server, execution of only two commands is said to be sufficient in order to set up HTTPS encryption, acquire and install certificates within 20 to 30 seconds.〔〔 To that end, the inclusion of a software package into the official Debian software repositories is being worked on.〔 Current initiatives of major browser developers such as Mozilla and Google to deprecate unencrypted HTTP are counting on the availability of Let's Encrypt.〔〔 The project is acknowledged to have the potential to accomplish encrypted connections as the default case for the entire web.〔 So-called domain validation certificates are being issued. Organization Validation and Extended Validation Certificates will not be offered.〔 Being as transparent as possible is hoped to both protect their own trustworthiness and guarding against attacks and manipulation attempts. For that purpose they regularly publish transparency reports,〔 publicly log all ACME transactions, and use open standards and free software as much as possible.〔 There is currently no plan to support wildcard certificates, though it has not been ruled out either. The reason given for the lack of support is that the ease of getting non-wildcard Let's Encrypt certificates issued makes wildcard certificates unnecessary,〔https://community.letsencrypt.org/t/frequently-asked-questions-faq/26〕 though some users have opined that there are still use cases where wildcard certificates are easier to use or even technically necessary.〔https://community.letsencrypt.org/t/please-support-wildcard-certificates/258/42〕 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「Let's Encrypt」の詳細全文を読む スポンサード リンク
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