key-management

How can I import a .p12 certificate from the classpath into the java keystore? First I used the InstallCert https://code.google.com/p/java-use-examples/source/browse/trunk/src/com/aw/ad/util/InstallCert.java and did some changes so the server certificate will be imported into the keystore in the java install directory. This works fine but now I want to load a certificate from my classpath. EDIT: I just use a .cer certificate, see next answer Pali The answer: InputStream certIn = ClassLoader.class.getResourceAsStream("/package/myCert.cer"); final char sep = File.separatorChar; File dir = new

I want to store some small but critical piece of information such as AES keys in my Android application. What would be the recommended way to do this? I do not want to hardcode keys as part of my application. I look at KeyStore but it does not really solve my problem. It can store my keys given that I can provide a password. Then I need to find a secure place to store this password which is same as my original problem. Is there a built in Android class to perform this task? Or should I look for third party libraries? Using NDK is also acceptable for me. Update: I was hoping to find an Android

My task is the following: Retrieve my public and private key from the keystore I created. Use these keys to encrypt a paragraph using my RSA 2048-bit public key. Digitally sign the result using the DSA-SHA-1 signature algorithm. Save the digital signature output on a file called output.dat . The program below is throwing error : "java.security.InvalidKeyException: No installed provider supports this key: sun.security.provider.DSAPublicKeyImpl". import java.security.*; import java.security.KeyStore.*; import java.io.*; import java.security.PublicKey; import java.security.PrivateKey; import

I have a RSA public key in PEM format + PKCS#1(I guess): -----BEGIN RSA PUBLIC KEY----- MIGJAoGBAJNrHWRFgWLqgzSmLBq2G89exgi/Jk1NWhbFB9gHc9MLORmP3BOCJS9k onzT/+Dk1hdZf00JGgZeuJGoXK9PX3CIKQKRQRHpi5e1vmOCrmHN5VMOxGO4d+zn JDEbNHODZR4HzsSdpQ9SGMSx7raJJedEIbr0IP6DgnWgiA7R1mUdAgMBAAE= -----END RSA PUBLIC KEY----- I want to get the SHA1 digest of its ASN1 encoded version in Python. The first step should be to read this key, but I failed to do it in PyCrypto: >> from Crypto.PublicKey import RSA >> RSA.importKey(my_key) ValueError: RSA key format is not supported The documentation of PyCrypto says PEM +