OpenSSL is an open-source implementation of the SSL and TLS protocols. The core library, written in the C programming language, implements the basic cryptographic functions and provides various utility functions.

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REHL 6.4 and OpenSSL 1.0.1 - Dependency missing.. but it isn't?

I am trying to install phpMyAdmin, however I am getting an error about openssl libraries being missing. However, I have installed them using the ius repo; Error: Package: ...
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How do I decrypt a message using openssl's CLI?

I have a message, I know the password and the cipher that was used to encrypt it, but I can't figure out how to ask openssl to decrypt it. I see the cipher in the output from the ciphers command, and ...
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91 views

Why does OpenSSL automatically send me Terminal mail?

I for some reason am getting messages from OpenSSL constantly (not literally constantly, but every hour or so) sent to my Terminal mail box saying: Message 1: Subject: Cron ...
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376 views

Certificate extensions in generating and signing certificartes using openssl

References: SSL Configurations for Intermediate certificate How to add my own created certificate authority to system trusted repositories Why I can't find a page which tell me what's the kind of ...
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OpenSSL Package Rebuild CentOS 6.4

Rebuilding openssl with Elliptic Curves on CentOS 6.4 The strategy is: 1) Download the "official" CentOS source package (.src.rpm) 2) Modify the .spec file to enable elliptic curves. (change no-EC ...
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SSL Configurations for Intermediate certificate

I had implement a mutual certificate authentication and it worked successfully for following steps : create root ca (self-signed) create server certificate and sign it with ca private key create ...
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libpam load pam modules at every connection

I want to reduce ssh connection time, by debugging sshd have found that libpam is loading all pam modules specified in /etc/pam.d/sshd file at every connection. How to configure/modifiy libpam such ...
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Implementation of eSTREAM ciphers available?

Is there a usable implementation of the eSTREAM stream cyphers available for Linux? I was thinking to use that for encrypting data stored on tape drives, using it with tar. Now, there are some basic ...
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274 views

Validating an OpenSSL Cipher List

Are there any tools that can validate an OpenSSL cipher list both syntactically and semantically? For example, ALL:!LOW:!SSLv2:!EXP:!aNULL is both syntactically and semantically valid cipher list. On ...
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Installing OpenSSL that supports SNI along with previous version of OpenSSL

So I learned that to host multiple HTTPS websites on the same IP address you need an OpenSSL version that supports SNI (0.9.8f and higher). My RHEL5 box currently has 0.9.8e and Apache version ...
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501 views

How to detect on Linux/AIX machines if they are vulnerable to the CVE-2014-0160?

I quickly wrote a script that outputs the openssl versions on AIX/Linux: #/bin/ksh # RUN THIS SCRIPT ON ANY AIX/LINUX TO DETECT IF THE SERVER IS VULNERABLE TO: # ...
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669 views

'Git clone' times out with 443 error message

git clone -v https://github.com/me/myproj Cloning into 'myproj'... <minutes pass> error: Failed connect to github.com:443; Operation now in progress while accessing ...
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Missing configuration in Apache to achive mutual SSL authentcaion

After implementing a Mutual Certificate Authentication with OpenSSL and Apache Web Server on CentOS platform, I tried this scenario (see this diagram): ---------- ...