Export public key from key store without the key store password

[Chad F]

Is it possible to export the public key from a keystore for a specific user id without needing the keystore password?  Everything I tried requires I specify the user id and password when instantiating a KeyStore object like this:

KeyStore keyStore = new KeyStore("some_user_id", "some_password");

string publicKey = keyStore.ExportPublicKeyAsString("some_user_id");

It would be nice to have another overloaded constructor that takes a single argument: userId so I can do this:

KeyStore keyStore = new KeyStore("some_user_id");

This object would have limited capabilites and could only do things like export the public key.  If I tried to decrypt with this keyStore instance or export the private key it would throw an exception about needing the password.

My goal is to allow apps/senders to retrieve the public key from a keystore using only the userid so they can encrypt messages without needing the password.  Giving the keystore password to the apps/senders is obviously a security risk.

[Chad F]

[EDIT]

I forgot to mention the other limited capabilities a keyStore object (without a password) would have would be encryption.  I want to be able to encrypt data by providing just the keystore user id.

[Didisoft Support]

Hi Chad,

The usual parameters for the KeyStore constructor are the file location of the KeyStore and it's own password (keys are kept encrypted there).

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[Chad F]

Yeah, I forgot I was just using the userId as the file name of the keystore.  But that doesn't answer my question.

Thanks

[Didisoft Support]

Hi Chad,

Can you please describe your use case and more specifically what capabilities should the customers have and I can provide you suggestions afterwards.