x509

I am quite new to C# and especially new to Signing with X509. I have an xml template in which I have to add the certificate used (done) and sign the timestamp (TS-1), the binary security token and the body (id-1). Furthermore, I need to write (e.g. replace placeholders) with the digest value of these 3 elements and add the signature value. However, I do not really understand the concept, e.g. how to do this. I read a couple of websites, e.g. signing a xml document with x509 certificate but I cannot adapt the code to my problem. Here is what I tried: public static string SignXml(string template

The internal clock of my server that signs certificate requests is apparently a few seconds faster that the client clocks. Therefore I need to set the "Not before" in the certificate a few seconds in the past when I sign a csr. I do not want to set back the internal clock of the server since that seems like a hackish solution. Currently I sign the csr and generate a certificate using: $usercert = @openssl_csr_sign($csr, $cacert, $privkey, intval(CERT_VAL_PERIOD), $cnf); Is there any way to achieve what I want by modifying openssl.cnf or using a different signing function? Using phpseclib's

Our server access internet through a proxy. When I try to run a pull command such as sudo docker run -t -i ubuntu:14.04 /bin/bash I get the below error: Get https://index.docker.io/v1/repositories/ubuntu/images: tls: failed to parse certificate from server: x509: negative serial number The wget command wget -S -d -O - https://get.docker.io yields the below output: Setting --output-document (outputdocument) to - DEBUG output created by Wget 1.13.4 on linux-gnu. URI encoding = UTF-8' URI encoding = UTF-8' --2014-08-27 17:13:46-- https://get.docker.io/ Connecting to :... connected. Created socket