I've been reading in this list about crypting with RSA but I don't get
it to work.
I beg your help. I believe one of the problems I'm having is that the
different values (.e , .n , .d ) are being given in decimal format,
while the java function will need hexaedcimal format.
Please, any hint or idea on how to encrypt/verify based on RSA with
Ruby? any other library? Or ... how can I create an RSA private key
based on hexadecimal values of n, e and d? How can I convert decimal
values to hex?
thanks a lot,
In the server, the following code:
# key.pem is generated with "openssl genrsa -out key512.pem 512" in the
# command line
private_key = PKey::RSA.new(File.open("key.pem").read, nil)
# Crypting with the public, decrypting with the private
@pwdOriginal = "uno_dos_tres"
@pwdCrypted_PubPriv = private_key.public_encrypt(@pwdOriginal)
@pwdDecrypted_PubPriv = private_key.private_decrypt(@pwdCrypted_PubPriv)
# This values are generated out the .pem file
@f_e = private_key.e
@f_d = private_key.d.to_s
@f_n = private_key.n
@f_public = private_key.public_key
@f_private = private_key.to_s