Howto create a certificate using openssl including a CRL distribution point?
I'm having problems using openssl to create a x509 certificate containing a crl distribution point for testing. I've checked the documentation and found the configuration setting crlDistributionPoints for this purpose. Unfortunately openssl always generates x509 version 1 certificates without instead of version 3 certificates with the crl distribution point. I'm sure something is wrong with my com
How do you sign a Certificate Signing Request with your Certification Authority?
1. Using the x509 module openssl x509 ... ... 2 Using the ca module openssl ca ... ... You are missing the prelude to those commands. This is a two-step process. First you set up your CA, and then you sign an end entity certificate (a.k.a server or user). Both of the two commands elide the two steps into one. And both assume you have a an OpenSSL configuration file already setup for both CAs and S
OpenSSL Cookbook | Feisty Duck
Chapter 1: Getting Started Getting Started Key and Certificate Management Server Configuration Creating a Private Certification Authority from Scratch Chapter 2: Testing with OpenSSL Sixteen sections cover testing of various aspects of TLS server configuration For all its warts, OpenSSL is one of the most successful and most important open source projects. It’s successful because it’s so widely us
OpenSSLã®è„†å¼±æ€§(CVE-2015-1793)ã«ã‚ˆã‚‹Altãƒã‚§ãƒ¼ãƒ³è¨¼æ˜Žæ›¸å½é€ ã®ä»•çµ„ã¿ - ã¼ã¡ã¼ã¡æ—¥è¨˜
TL;DR ã‚„ã£ã±ã‚Šæ›¸ã„ã¦ã„ãŸã‚‰é•·æ–‡ã«ãªã£ã¦ã—ã¾ã„ã¾ã—ãŸã€‚ã‚ã¾ã‚Šã¡ã‚ƒã‚“ã¨æŽ¨æ•²ã™ã‚‹æ°—力ãŒãªã„ã®ã§ã€å¤‰ãªæ–‡ç« ã«ãªã£ã¦ã„ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。ã”了承ã„ãŸã ã‘ã‚‹æ–¹ã®ã¿ãŠèªã¿ãã ã•ã„。 1. ã¯ã˜ã‚㫠昨晩未明ã«OpenSSL-1.0.2d, 1.0.1pãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸã€‚事å‰ã«äºˆå‘Šã•ã‚Œã¦ã„ãŸé€šã‚Šæ·±åˆ»åº¦é«˜ã®è„†å¼±æ€§CVE-2015-1793ãŒä¿®æ£ã•ã‚Œã¦ã„ã¾ã™ã€‚Advisoryを見るã¨ã€ã“ã®è„†å¼±æ€§ãŒiojs/Nodeã«å½±éŸ¿ãŒã‚ã‚‹ã¨ã„ã†ã“ã¨ãŒåˆ¤æ˜Žã—ãŸã®ã§ç›´ã¡ã«iojs/Nodeã®ã‚¢ãƒƒãƒ—デートを行ã„ã€ä»Šæœæœªæ˜Žã«ç„¡äº‹è„†å¼±æ€§å¯¾å¿œç‰ˆã‚’リリースã—ã¾ã—ãŸã€‚ 今回ãŒåˆã‚ã¦ã§ã¯ã‚ã‚Šã¾ã›ã‚“ãŒã€æ·±å¤œã«æ—¥æ¬§ç±³ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãŒgithub上ã§äº’ã„ã«é€£æºã—ãªãŒã‚‰é€Ÿã‚„ã‹ã«ã‚»ã‚ュリティ対ç–ã®ãƒªãƒªãƒ¼ã‚¹ä½œæ¥ã‚’è¡Œã†ã“ã¨ã¯ä½•å›žã‚„ã£ã¦ã‚‚ãªã‹ãªã‹ã—ã³ã‚Œã‚‹çµŒé¨“ã§ã™ã€‚時差もã‚ã‚Šãªã‹ãªã‹ä½“力的ã«ã¯è¾›ã„ã‚‚ã®ãŒã‚ã‚Šã¾ã™ãŒã€ä¸–ç•Œã®è¶…一æµã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¨å…±åŒã§ãƒªã‚¢
è¯éº—ãªã‚‹å› 数分解:FREAK攻撃ã®ä»•çµ„ã¿ - ã¼ã¡ã¼ã¡æ—¥è¨˜
1. ã¯ã˜ã‚ã« ã¡ã‚‡ã†ã©ä»Šæœ OpenSSLã‚’ã¯ã˜ã‚ã¨ã—ãŸæ§˜ã€…ãªTLS実装ã®è„†å¼±æ€§ã®è©³ç´°ãŒå…¬è¡¨ã•ã‚Œã¾ã—ãŸã€‚ ã“ã® Inriaã¨MSRã®ã‚°ãƒ«ãƒ¼ãƒ—ã¯ä»¥å‰ã‹ã‚‰TLSã®ã‚»ã‚ュリティã«é–¢ã—ã¦éžå¸¸ã«ã‚¢ã‚¯ãƒ†ã‚£ãƒ–ã«èª¿æŸ»ãƒ»æ¤œè¨¼ã‚’ã—ã¦ã„るグループã§ã€ä»Šå›žã‚‚é©šãã®å†…容ã§ã—ãŸã€‚ ã“ã®ã‚°ãƒ«ãƒ¼ãƒ—ã¯ã€TLSã®ãƒãƒ³ãƒ‰ã‚·ã‚§ã‚¤ã‚¯æ™‚ã®çŠ¶æ…‹é·ç§»ã‚’厳密ã«ãƒã‚§ãƒƒã‚¯ã™ã‚‹ãƒ„ールを開発ã—ã€æ§˜ã€…ãªTLS実装ã®è„†å¼±æ€§ã‚’ç™ºè¦‹ãƒ»å ±å‘Šã‚’è¡Œã£ã¦ã„ãŸã‚ˆã†ã§ã™ã€‚ 特ã«FREAKã¨å‘¼ã°ã‚Œã‚‹OpenSSLã®è„†å¼±æ€§(CVE-2015-0204)ã«é–¢ã—ã¦ã¯ã€ã¡ã‚‡ã†ã©ä¿®æ£ç›´å¾Œã®1月åˆã‚ã« Only allow ephemeral RSA keys in export ciphersuites ã§è¦‹ã¦ã„ã¾ã—ãŸãŒã€å…·ä½“çš„ã«ã©ã®ã‚ˆã†ã«æ”»æ’ƒã™ã‚‹ã®ã‹ã•ã£ã±ã‚Šã‚¤ãƒ¡ãƒ¼ã‚¸ã§ããšã€ã‚ã®ã‚°ãƒ«ãƒ¼ãƒ—ã ã‹ã‚‰ã¾ãŸè¶…絶変態ãªæ‰‹æ³•ã ã‚ã†ãŒã€ã¾ããã‚Œã»ã©æ·±åˆ»ã˜ã‚ƒãªã„ã ã‚ã†ã¨è¦‹è¾¼ã‚“ã§ã„ã¾ã—ãŸã€‚ 今回
StrongLoop | Are Node and io.js affected by the “FREAK Attack†OpenSSL vulnerability?
You are here: Home / StrongBlog / Community / Are Node and io.js affected by the “FREAK Attack†OpenSSL vulnerab... Recently a security vulnerability, dubbed “FREAK Attack†was reported that affects certain versions of OpenSSL, the popular open source encryption library which is used in many server products such as Apache. Specifically, the ssl3_get_key_exchange function in s3_clnt.c in OpenSSL be
Tracking the FREAK Attack
On Tuesday, March 3, 2015, researchers announced a new SSL/TLS vulnerability called the FREAK attack. It allows an attacker to intercept HTTPS connections between vulnerable clients and servers and force them to use weakened encryption, which the attacker can break to steal or manipulate sensitive data. This site is dedicated to tracking the impact of the attack and helping users test whether they
opensslã§RSAæš—å·ã¨éŠã¶ - ã‚ã°é›»åãŒè©°ã¾ã¤ã¦ã‚ã‚‹
opensslã¨RSAæš—å·ã«ã¤ã„ã¦ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ã‚ˆã†ã‹ãªã€ã¨æ€ã£ãŸã€‚ ã¾ãšRSAæš—å·ã¨ã¯ã€ 公開éµæš—å·æ–¹å¼ã®å®Ÿè£…ã®ã²ã¨ã¤ã§ã‚ã‚‹ 2ã¤ã®ç´ æ•°ã®ç©(ケタ数ãŒå¤§ãã„å ´åˆã®ç´ å› æ•°åˆ†è§£ã®å›°é›£ã•)を利用ã—ã¦ã„ã‚‹ ã£ã¦ã“ã¨ã‚’ç†å±ˆã¨ã—ã¦ã¯ç†è§£ã—ã¦ã„ã‚‹ã‘ã©ã€å®Ÿéš›ã«opensslコマンドã§ä½œã£ãŸéµãƒ•ã‚¡ã‚¤ãƒ«ã®ä¸èº«ãŒã©ã†ãªã£ã¦ã„ã‚‹ã®ã‹? ã¨ã„ã†ã“ã¨ã¾ã§è¸ã¿è¾¼ã‚“ã ã“ã¨ãŒç„¡ã‹ã£ãŸã€‚ ã¨ã„ã†ã‚ã‘ã§ã€ã¡ã‚‡ã£ã¨ãã®è¾ºã‚’コマンドå©ããªãŒã‚‰éŠã‚“ã§ã¿ã‚‹ã“ã¨ã«ã™ã‚‹ã€‚ ã¯ã˜ã‚ã«ï¼šopensslã®æ“作ã«ã¤ã„㦠opensslコマンドã¯å¢—築ã«å¢—築をé‡ãã™ãŽã¦ãŠã‚Šã€ã‚‚ã¯ã‚„ãã³ãˆç«‹ã¤Ã—×ã®ã‚ˆã†ã§ã‚る。ヤヴァã„ã“ã¨ã«ãªã£ãŸãƒ¬ãƒ™ãƒ«ã§æ©Ÿèƒ½ã¦ã‚“ã“盛りã®ã‚³ãƒžãƒ³ãƒ‰ãªã®ã§ã€ã‚µãƒ–コマンドã¨ã—ã¦æ©Ÿèƒ½åを指定ã—ã¦ä½¿ã†ã“ã¨ã«ãªã‚‹ã€‚ openssl command [ command_opts ] [ command_args ]上例ã®ã€Œcommandã€ã«ã¯ã€R
Lavabit 事件ã¨ãã®ä½™æ³¢ã€ãã—㦠Forward Secrecy - ã‚»ã‚ュリティã¯æ¥½ã—ã„ã‹ã？ Part 2
Lavabit事件 Lavabitã¨ã„ã†åå‰ã‚’ã¿ãªã•ã‚“ã”å˜çŸ¥ã ã‚ã†ã‹ã€‚NSAã®ç›£è¦–活動ã«ã¤ã„ã¦å†…部リークを行ã£ãŸ Edward Snowdenæ°ãŒåˆ©ç”¨ã—ã¦ã„ãŸãƒ¡ãƒ¼ãƒ«ã‚µãƒ¼ãƒ“スã¨ã—ã¦ä»Šå¹´ã®å¤ã«ä¸€èºæœ‰åã«ãªã£ãŸã¨ã“ã‚ã 。Snowdenæ°ã¯é¦™æ¸¯ã«æ»žåœ¨ã—ã¦è¤‡æ•°ã®ã‚¸ãƒ£ãƒ¼ãƒŠãƒªã‚¹ãƒˆã«NSAã®å†…éƒ¨æƒ…å ±ã‚’æä¾›ã—ãŸã‚ã¨ã€ç¾åœ¨ã¯ãƒã‚·ã‚¢ã«ä¸€æ™‚亡命ã—ã¦ã„ã‚‹ãŒã€äº¡å‘½ãŒèªã‚られるå‰ã«ãƒ¢ã‚¹ã‚¯ãƒ¯ç©ºæ¸¯ã«ã—ã°ã‚‰ã滞在ã—ã¦ã„ãŸã“ã¨ãŒã‚る。7月12æ—¥ã«ç©ºæ¸¯å†…ã§ãƒ—レスカンファレンスを行ã£ãŸã®ã ãŒã€ãã®æ™‚複数ã®äººæ¨©å›£ä½“ã«é€ã£ãŸæ‹›å¾…状㌠“edsnowden@lavabit.com†ã¨ã„ã†ãƒ¡ãƒ¼ãƒ«ã‚¢ãƒ‰ãƒ¬ã‚¹ã‹ã‚‰ã ã£ãŸã€‚ã“ã®äº‹ãŒå ±é“ã•ã‚Œã‚‹ã¨ã€ã€Œã‚ã®ã€Snowdenæ°ãŒä½¿ã£ã¦ã„るメールサービスã¨ã„ã†ã“ã¨ã§ã€åˆ©ç”¨å¸Œæœ›è€…ãŒæ®ºåˆ°ã—ãŸã‚‰ã—ã„。(ãã‚Œã¾ã§æ–°è¦ç™»éŒ²ã¯ 200人/æ—¥ã ã£ãŸã®ãŒã€4,000人/æ—¥ã¨20å€ã«ãªã£ãŸã€‚) ã—ã‹ã—ãã‚“ãªè¡¨ã®é¨’å‹•ã®å½±ã§ã€
TLS & Perfect Forward Secrecy
Once the private key of some HTTPS web site is compromised, an attacker is able to build a man-in-the-middle attack to intercept and decrypt any communication with the web site. The first step against such an attack is the revocation of the associated certificate through a CRL or a protocol like OCSP. Unfortunately, the attacker could also have recorded past communications protected by this privat
OpenSSL #heartbleed 脆弱性ã®å½±éŸ¿ã¨ãã®å¾Œã‚’考ãˆã‚‹ã¨ãã®ãƒ¡ãƒ¢ - ã‚ã‚‚ãŠãã°
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Generate SHA hash in C++ using OpenSSL library
How can I generate SHA1 or SHA2 hashes using the OpenSSL libarary? I searched google and could not find any function or example code.
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SSL/TLS Decryption - uncovering secrets
https://support.hp.com/
What key exchange mechanism should be used in TLS?
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