x509certificate

These two actions seem to do the same: using the Basic Constraints extension in a X.509 Certificate to signify that it is a CA certificate and using the Key Usage extension e.g. to signify that the public key can be used for certificate signining. What is the difference between these extensions? Do they serve same purpose or complement each other? Babu Srinivasan "Key Usage" defines what can be done with the key contained in the certificate. Examples of usage are: ciphering, signature, signing certificates, signing CRLs. "Basic Constraints" identifies if the subject of certificates is a CA who

I need to encode and decode BER data. .NET has the class System.DirectoryServices.Protocols.BerConverter The static method requires me to enter a string in the first parameter as shown below byte[] oid = { 0x30, 0xD, 0x6, 0x9, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0xD, 0x1, 0x1, 0x1, 0x5, 0x0 }; // Object ID for RSA var result2 = System.DirectoryServices.Protocols.BerConverter.Decoding("?what goes here?", oid); BER encoding is used in LDAP, Certificates, and is commonplace in many other formats. I'll be happy with information telling me how to Encode or Decode on this class. There is nothing on Stack

I'm new to the certificates, and this is a first time I bought it. I generated CSR file (in IIS) and bought certificate using GoDaddy web site. They sent me two files: P7B and CRT. Since I will use the certificate for Azure Web role, I need PFX. How can I create it using only CSR, P7B, and CRT? Finally I managed to do that. In IIS I selected Complete Certificate Request, installed the CRT certificate, and then used Export option to save it as PFX. Since I will use the certificate for Azure Web role, I need PFX Although my target server is Nancy, I'm posting the answer because it's relevant to

My objective: Create an EAP WiFi configuration - including the CA Certificate - in Android programmitcally. Problem: How do I install a CA Certificate programmatically (and then reference that certificate in the EAP WiFi configuration)? I found a very useful link already that allows me to create and save EAP WiFi configurations here: How to programmatically create and read WEP/EAP WiFi configurations in Android? However this assumes that you have already installed the CA Certificate on the device. I would like to install the certificate within my app - either from the resources in the app, or

In order to access to the web service I need a certificate. I generated my certs: openssl genrsa 1024 > private.key openssl req -new -x509 -nodes -sha1 -days 1100 -key private.key > public.cer then merged this two into a pfx certificate by openssl pkcs12 -in public.cer -inkey private.key -export -out client.pfx then loaded my pfx file as X509Certificate2 X509Certificate2 clientCert = new X509Certificate2("cert.pfx", "password"); Now, I would like to create a table into the data base that contains the following fields: PrivateKey NVARCHAR PublicCer NVARCHAR Password NVARCHAR Then copy the