x509

How would I get the hash of a public certificate's info to be able to perform SSL Pinning in my application? I am using TrustKit in my iOS application and it is asking for me to set the hash that I am expecting. Where can I get this from? If it is a public website, you can use SSL Labs server test which computes and displays the pin. The Public Key Pinning page over at the Mozilla Developer Network also has commands for obtaining the pin from a key file, a certificate signing request, a certificate or a website (this is the one in @mylogon's answer ). Since this is a programming web-site, i

my school webpages have selftrusted certificate(you must install it manually) and I wanted create program that will install a certificate.cer (from visual studio resources) to Local user -"Trusted root certificate authority" after i click on a button.Do you know how to code it in Visual C#? akton To add the certificate to the trusted root store for the current user programmatically, use the X509Store and X509Certificate2 classes. For example: string file; // Contains name of certificate file X509Store store = new X509Store(StoreName.Root, StoreLocation.CurrentUser); store.Open(OpenFlags

I want to retrieve the Key usage value from the X509 structured certificate , i tried the following code X509* lcert=NULL; lCert=PEM_read(filename); // function will return the certificate in X509 unsigned long lKeyusage= lCert->ex_kusage; When i print the lKeyusage value .. some times i get 128 ... sometimes i get 0 for the same certificate .. Can any one tell me what is the error .? If i am doing wrong please give me some sample code or Correct API .. I think the easiest way is to use a memory BIO: ... X509 *lcert = NULL; BUF_MEM *bptr = NULL; char *buf = NULL; int loc; FILE *f = fopen("your

This question already has an answer here: RSA Encryption public key? 1 answer I have modulus and exponent. How can I encode/decode data with RSA algotithm on iPhone? Or how can I generate DER format from modulus and exponent? If you want to generate DER data on the iPhone, I have code on GitHub that will let you do this: https://github.com/StCredZero/SCZ-BasicEncodingRules-iOS SCZ-BasicEncodingRules-iOS Implementation of Basic Encoding Rules to enable import of RSA keys to iOS KeyChain using exponent. Code targets iOS 5 with ARC. Let's say you already have a modulus and exponent from an RSA

How to create a digital certificate and export to .p12 file in PHP? I want the .p12 file to have private key included. And also want to check whether the key pair is already issued (logged in database). I found a function called 'openssl_pkcs12_export_to_file' but don't know where to start. Seems that I need an X509 cert and a private key first. <?php error_reporting(-1); function dump($Var) { echo "<hr/><pre>"; var_dump($Var); echo "</pre><hr/>"; } function check_errors() { echo "<hr/><pre>"; $Count = 0; while (($e=openssl_error_string())!==false) { echo $e."<br>"; $Count++; } if ($Count==0)

I have a certificate chain in server: Certificate chain 0 s:/******/O=Foobar International BV/OU**** i:/C=US/O=Symantec Corporation/OU=Symantec Trust Network/**** 1 s:/C=US/O=Symantec Corporation/OU=Symantec Trust Network/**** i:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=**** - G5 2 s:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=**** - G5 i:/C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority And my local root CA certificate is: s:/C=US/O=Symantec Corporation/OU=Symantec Trust Network/**** i:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=**** - G5 And I