public-key

I'm doing some work with a company outside of my school, and they need my public ssh key. I already have my public ssh key generated for use with github. I set this up some time ago, and if I open the id_rsa.pub file, I see it has my school email address embedded inside. Now I'm wondering if it's typical to reuse this one key with every company you work with, or do you generate a new one for every company. I guess I have a few considerations: If I use the same public key with each company, and my private key were compromised, I'd need to give each company a new public key. My school email

I've been trying "ssh localhost" on cygwin (I use WIndows 7), but it keeps asking for the password. When I did "ssh -vvv localhost", I found out that the public key authentications were not happening (or failing). Hence, it was asking for the password. debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is

How do you setup server to server SFTP to use public-key authentication instead of user account and password? bhups In the client you need to generate its public key and add it to server's authorized key list. The following are the commands you can use. On client machine ssh-keygen -t dsa -f id_dsa mv id_dsa* ~/.ssh/ scp ~/.ssh/id_dsa.pub USER_NAME@SERVER:~/.ssh/HOST_NAME.key On the server cat ~/.ssh/HOST_NAME.key >> ~/.ssh/authorized_keys2 Remember to chmod 700 .ssh and also chmod 600 authorized_keys This is a solution for windows users I had a similar issue on windows so I used Putty from

I'm trying to learn some crypto coding and have generated a 32-byte private key currently held in a byte array ( byte[] privatekey ). I know the public key is generated using the secp256k1 named elliptic curve parameters, and a formula where publickey = G * privatekey , where G is some point on the elliptic curve (ECPoint?), but I am unable to transfer that named parameter spec and formula into actual coding of a public key. I know that since java 7, there are classes included in the java.security.* and java.security.spec.* packages to do this in short code, but I can't find a good example

How convert RSA public key, from XML to PEM (PHP)? we know .pem - (Privacy Enhanced Mail) Base64 encoded DER certificate, enclosed between "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----" X.509 The SignatureValue element contains the Base64 encoded signature result - the signature generated with the parameters specified in the SignatureMethod element - of the SignedInfo element after applying the algorithm specified by the CanonicalizationMethod. XML_Signature so we end up with $xml = simplexml_load_file($xmlFile); // or simplexml_load_string $pem = "-----BEGIN CERTIFICATE-----\n"