Private key contains the public key.
Aleksey
Dimitar Dimitrov wrote:
Hi,
I was trying XmlSec to encrypt/decrypt an xml file. That works fine
except that I've noticed something strange.
The following sequence is OK:
A: xmlsec1 encrypt --pubkey-pem tls/client-pub.pem --session-key des-192 \
--xml-data data.xml --output data_enc.xml session-key-template.xml
B: xmlsec1 decrypt --privkey-pem tls/client-key.pem data_enc.xml
That's encrypting data.xml into data_enc.xml using client's public and
private x509 keys as it is supposed to be under normal circumstances.
But if I twist it a bit (don't ask me why :) and encrypt with client's
private key, I can also decrypt with client's private key!? Like this:
C: xmlsec1 encrypt --pubkey-pem tls/client-key.pem --session-key des-192 \
--xml-data data.xml --output data_enc.xml session-key-template.xml
D: xmlsec1 decrypt --privkey-pem tls/client-key.pem data_enc.xml
Decryption with the public key doesn't work, btw.
Is this behavior correct? Or I'm doing something wrong?
I know that in all normal situations one should encrypt with the public
key and decrypt with the private, so this is rather an unusual use case.
But still curios should it be possible to encrypt and decrypt with the
private key only?
Thanks!
Dimitar
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