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Questions tagged [openssl]

OpenSSL is an open source software toolkit that implements the SSL/TLS protocol, as well as a general cryptographic library.

OpenSSL is an open source software toolkit that implements the SSL/TLS protocol, as well as a general cryptographic library.

OpenSSL is maintained by the OpenSSL Project, which hosts several project mailing lists.

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Heroku Updating SSL endpoint failed - No key found that signs the certificate

I am trying to replace my SSL cert on my Heroku Rails app. I have reissued the SSL cert and am trying to update the SSL end point. However, When I run the following command I get this error. heroku certs:update server.crt intermediate.crt server.key…
Tyler
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How to tamper a X509 format certificate?

I used openssl command line tool to generate a CA signed certificate. now I need to tamper it to generate the signature mismatch error. Is there any tool available to tamper the X509 certificate.
Balamurugan
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What does PKCS5_PBKDF2_HMAC_SHA1 return value mean?

I'm attempting to use OpenSSL's PKCS5_PBKDF2_HMAC_SHA1 method. I gather that it returns 0 if it succeeds, and some other value otherwise. My question is, what does a non-zero return value mean? Memory error? Usage error? How should my program handle…
jtpereyda
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Utilizing PBKDF2 with OpenSSL library

I want to utilize the PBKDF2 algorithm with SHA1 HMAC (based on this answer). How can I utilize this through the crypto library? I started by looking at man openssl, but the openssl passwd command (man page) only supports a small handful of…
jtpereyda
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Writing bytes directly to OpenSSL Connection, without TCP

I'm implementing a RADIUS server with support for EAP(PEAP) authentication. The RADIUS relies on UDP and each packet will contain an EAP message with the authentication data. To simplify, each EAP (PEAP) message contains TLS packets so the client…
Sergio A.
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compile error using openssl

I try to use openSSL on a app but I get a parse issue on the following line (in the rsa.h header file) int (*rsa_mod_exp)(BIGNUM *r0,const BIGNUM *I,RSA *rsa,BN_CTX *ctx); error is : parse error expected ')' Using XCode 5 on OSX 10.9 and …
AP.
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use libcryto.so and libssl.so in an android project?

I'm beginer to Android NDK. I want to build a RSA example base on openssl libary. First, I built libssl.so and libcrypto.so librairies with ndk-build in the guardianproject. Next, I create a new sample project to integrate libary (libss.so &…
tuan.giao
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"SSL23_GET_SERVER_HELLO:unknown protocol" Error Trying to Reach Outlook smtp Server

I'm trying to send emails from an Outlook account in my iOS application. I'm using Mailcore2 and Outlook's Live-SDK. I am able to receive emails, but get an error when I try to send emails: "a stable connection to the server could not be…
jac300
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Can security for this username/password generator script be improved?

Description To manage the huge amount of my website logins, I wrote a bash script which takes A string which, for me personally, identifies a certain account. Examples are mylogin@stackoverflow.com or thisWebsiteIVistedLately, but it can be…
QkuCeHBH
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AFNetworking 2.2 SSL pinning with self-signed certificate

I want to prevent my app/server communication from a MITM attack so I am trying to setup SSL pinning, but I am having problems getting it working with AFNetworking 2.2, using a self-signed certificate. I think it's mostly a problem with how I am…
Eric Allam
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"Error adding attribute" encountered when creating certificate

When i create an OpenSSL certificate, i am asked to enter the additional attributes such as country code, state or province name, organization, organization unit name and common name. After entering all these i am asked to enter the common name and…
user1570577
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In which library is the MD5() function?

As I'm writing code to install on a target machine, I was wondering about the dependencies and noticed that there were no openssl library needed. I wondered because I know I am using OpenSSL: #include ... MD5(a, b, c); ... To my…
Alexis Wilke
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Multithreaded communication with OpenSSL

I'm using OpenSSL to communicate with a server. I can send data to the server at any time and the server might or might not send back a response. The server can also send data to the client without a request. I'm using SSL over a BIO made with…
fizixx
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Boost::Asio, SSL Connection Problems

I tried to solve my Problem for a few days now and just can't get behind it. I try to do an SSL Connection with the Boost::Asio Library and OpenSSL. There is an Example Code, how to do this:…
user3293746
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sqlcipher version migration for ios project

I was using older version of sqlcipher and open ssl for application. Now I migrated to newer version for Xcode 5 and iOS 7 compatibility, but it is not decrypting the older version of database. Please help me out. I searched on google and found…
Dhara
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