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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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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104 views

mutt SSL unknown protocol - not able to connect

I am facing following situation. I am using arch linux I installed mutt the email client I followed the simple guidelines in the arch wiki to configure mutt to use imap For the simple config where ...
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403 views

Cannot run ssh after upgrade to OpenSSL 1.0.1p

I upgrade OpenSSL 1.0.1p lsof | grep libssl The result firewalld 665 root mem REG 253,0 445544 805308545 /usr/lib64/libssl.so.1.0.1e gmain 665 1197 ...
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323 views

How to use afl-fuzz (American Fuzzy Lop) with openssl

I am trying to use afl-fuzz with openssl in Ubuntu. A normal usage of afl-fuzz would be: afl-gcc test.c //-- this will produce a.out mkdir testcases echo "Test case here." > testcases/case1 ...
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242 views

Apache / OpenSSL configuration keywords `SSLProtocol` vs. `SSLCipherSuite`

According to the Apache docs I can configure the cipher suite with (a.o.) two different keywords and examples on Internet often use both (but not necessarily identical to below example). What is the ...
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70 views

Can OpenSSH 6.7 optionally not depend on OpenSSL?

It has been reported on Slashdot on 2014-04-30 that OpenSSH now has a compile-time option to not depend on OpenSSL. However, OpenSSH 6.7 release notes, released on 2014-10-06, do not make any mention ...
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openSSL Key and Certificate

As far I know, in an authenticated SSL connection, both the client and server have private keys and provide their certificates (with the corresponding public keys) across the connection before ...
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OPENSSL_1.0.0 not found when running PyPy 4.0.1 on Amazon Linux (AWS EC2)

I want to run PyPy 4.0.1 on Amazon Linux (AWS EC2), and then downloaded and unzipped the tar.bz file. Also, I created the symbolic links to fix problems, such as pypy: error while loading shared ...
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Encrypting existing tar.gz archive

I know of a method to encrypt a tar.gz archive while creating it (not sure if it's a recommend one): tar -czvf /path/to/save/archive.tar.gz -C /path/to/archive . | openssl des3 -salt -k #PASSWORD# | ...
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555 views

OpenSSL 1.0.2.a and Centos5.7

I have an old version of Centos (5.7) and I would like to enable TLS 1.2 due to Google Chrome warning about TLS 1.0 I tried to update with yum but I can see that no OpenSSL 1.x could be installed ...
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Does Apache 2.2.3 support TLSv1.1 and TLSv1.2?

How can I find out if Apache 2.2.3 supports TLSv1.1 and TLSv1.2? If possible how can I implement it?
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Apache2 'Server' header reports wrong openSSL version

Does anyone know where the Apache 'Server' header pulls the openSSL version from (file location/directory)? I am expecting openssl-1.0.1j but apache is reporting openssl-1.0.1g (system's openssl ...
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240 views

How to get certificate type from SSL Certificate of a domain?

Is there any way to get Certificate Type (EV/OV/DV) from the certificate? I tried the following command and get entire certificate at output, but can't find Certificate Type from it. $ openssl ...
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127 views

SMTP works via Mail client but not via openssl

I'm trying to troubleshoot an SMTP issue. My credentials work fine via the OS X Mail client (and in other areas), so the credentials are definitely good. However, when I try to submit them via: ...
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82 views

Get OpenSSL FIPS Module Version Number

Is there a way for a user to determine what version of the FIPS module was compiled into OpenSSL? When I say "as user", I mean is there some functionality buried in the command line interface to get ...
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361 views

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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16 views

OpenSSL converting chars to UTF-8 literals

I'm running a simple PKI web application in Php that uses OpenSSL shell commands and stores information in a text database. I have to deal with non-ASCII input characters (eg. German) but when a new ...
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21 views

How do I get a certificate on a server from a certificate authority server using an OpenSSL request?

How do I get a successful request for a certificate from one Linux server to a Linux server that is a certificate authority? I'm using Centos 7 on both servers on the network. I'm using an OpenSSL ...
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125 views

Need Help Cross Compiling Openssl for MIPS

I've been trying to cross compile Ncat for the MIPS architecture (big endian), and I really need SSL support, so I first must compile OpenSSL. I downloaded the latest version from Github and ...
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32 views

Turning SSLEngine on causes ERR_CONNECTION_REFUSED

I am trying to configure my SSL certificate on a new installation of Ubuntu 15.10. I have installed the certificate files and the private key in the required directory: SSLCertificateFile ...
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56 views

large file encryption with ssh's RSA key pair?

I'd like to work out a way to encrypt arbitrarily large files using users' RSA key pairs they generated for SSH purposes. They have standard id_rsa and id_rsa.pub files, and a PEM version of the pub ...
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588 views

Upgrading openssl from 0.9.8j-0.50.1 to 1.0.2a on SLES11SP3

I need to upgrade OPENSSL from 0.9.8j-0.50.1 -> 1.0.2a on a server that is running sles11 sp3 for dynamically linking into my program. Steps followed for upgrade my build environment(sles11sp3): ...
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Protected multilib versions: openssl

I'm running on Centos 6.2 x86_64 Trying to install ruby 2.1.2 ---> Package libselinux-devel.x86_64 0:2.0.94-5.2.el6 will be installed --> Processing Dependency: libsepol-devel >= 2.0.32-1 ...
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How does s_client turn ip6-localhost into 127.0.0.1?

When I use openssl s_client and ask it to connect to ip6-localhost it actually connects to 127.0.0.1 instead of ::1. This is what I see on both Ubuntu and Debian: $ strace -e connect openssl ...
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SSL (Hosted on LB) to be installed on the Downstream Apache Servers?

First, i have very basic knowledge on the SSL topic. Here is my setup. I have (1) of Public Facing Domain on LB and (2) of Internal Domains on each Web Servers. Like: ...
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300 views

Make SSL certificate trusted in browser via SSL Bump Squid

my goal is to insert custom HTML injections in HTTPS pages. I've setup Squid with SSL Bump. I generated a self signed certificate. With this setup I'm getting client side warnings that the ...
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OpenSSL 1.0.1e usage bug?

Environment $ cat /etc/*-release CentOS release 6.5 (Final) $ openssl version OpenSSL 1.0.1e-fips 11 Feb 2013 This works $ tr -dc A-Za-z0-9 </dev/random | head -c 24 > ${f_host_passphrase} ...
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50 views

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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197 views

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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How do I install and configure NTP on CentOS 7 from source? (include/ntp_crypt.h errors)

I unpacked the .tar.gz file for the newest NTP. I installed the gcc compiler and libcap devel. I ran the ./configure command with various flags and options. I ran make check and found an error. The ...
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Building python with openssl support

I have the following directory structure: nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$ la 2to3 cpp-5.3.0 gcov-5.3.0 grmid-5.3.0 objcopy-2.25.1 ...
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TLSv1.2 support in CentOS 5.8

Right now I can't access HTTPS site from PhantomJS headless WebKit browser because of TLSv1.2 In my CentOS 5.8 I have following OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 verison installed. I think I ...
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58 views

Openssl installation in RHEL 6.2

I had openssl 1.0.0-fips in my RHEL 6.2 box. I tried to upgrade it with openssl-1.0.2e. It got installed successfully. However when I try openssl version I still get the old version. Further I see ...
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Compiling OpenSSL 1.0.2d on Debian Lenny ARMv5 returns libcrypto.so errors

I'm compiling OpenSSL 1.0.2d on Debian Lenny ARMv5 embedded system: detrayz:~/openssl-1.0.2d# uname -a Linux detrayz 2.6.24.4 #1 Fri Sep 17 10:29:48 KST 2010 armv5tejl GNU/Linux I'm following the ...
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Why Python cant import OpenSSL

I created a virtual env for a matrix home server installation on a shared hoster. $ virtualenv -p python2.7 /home/tristank/venv/synapse $ source /home/tristank/venv/synapse/bin/activate I installed ...
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11 views

Periodic problems with openssl.vim with correct password

For those who doesn't know, there is a great script for vim that allows to store encrypted by openssl passwords using vim to acceses and edit them. About a year ago I've started to observe problems: ...
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Certificate type

I am downloading certificate from given URL as: echo -n | openssl s_client -showcerts -connect url > certificate.ext Now, how do I find out, the saved certificate.ext file is actually of which ...
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fetchmail: Missing trust anchor certificate:

I try to setup fetchmail on mac for checkdomain.de and created a certificate .pem file in the cert directory of ssl by copying certificate from running this command: openssl s_client -connect ...
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38 views

yum version mismatch for openssl

Someone have any idea why yum info openssl version is 1.0.1e and openssl version is 1.0.2d?? [root@WEBPROXY Desktop]# yum info openssl Loaded plugins: fastestmirror, refresh-packagekit Loading mirror ...
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FIPS integrity test failed

I recently enabled the fips module in my CentOS 6 machine using this guide. During reboot, the system halted with this error: SELF TEST FAILED (/usr/lib64/hmaccalc/sha512hmac.hmac) dracut: FATAL: ...
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Openssl support for ruby not found in passenger installation on redhat 6

I have openssl 1.0.1e-42.el6 already installed. Also tried to compile openssl from ext/openssl directory which failed with below error ossl_pkey_ec.c:815: error: ‘EC_GROUP_new_curve_GF2m’ undeclared ...
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407 views

Create X509 certificate with v3 extensions using command line tools

I am using the following configuration file named root.conf: [req] default_bits = 2048 default_md = sha256 distinguished_name = req_dn prompt = no ...
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Backup server with tar, encrypt and directly transfer the result, AFTER BUFFERING IT

So I've been investigative how to make full backups with tar, and I found that tar is a good tool if the backup is to be made once, and if the server has enough disk space to handle the output file. ...
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ssl_engine_init.lo Error 1, compiling Apache with OpenSSL

I have installed (with no problems) OpenSSL 0.9.8zd by compiling: ./config no-ssl2 no-ssl3 no-idea no-rc5 no-md2 Next, I wanted to install Apache 2.2.3 by compiling: ./configure ...
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36 views

Enable TLS-SRP for, say, courier-imap

I want to use TLS-SRP for the services that I run on my server, because I don't want to leak credentials, not even on the server's disk. There are several articles on setting up TLS-SRP either with ...
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open ssl client giving error routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:188:

On connecting to my application (a ssl server) by using command openssl s_client -host 127.0.0.1 -port 5028 -cipher EXPORT -debug -state I am getting error like CONNECTED(00000003) ...
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149 views

Sign a soap message from a JKS dynamically using Python Unix

I am currently calling a webservice using Curl command from unix . I have a requirement that I have to dynamically message sign the soap request every time I make a call to the webservice using my ...
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614 views

Building cURL 7.40.0 and OpenSSL 1.0.2 from source: Headers and library doesn't match

I would like to ask for assistance, related to cURL and OpenSSL, both of them, built from sources. OS is Debian 7, latest version, minimal and clean install. Only installed packages: apt-get -y ...
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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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'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 ...