[QCA]Encrypt with private key and decrypt with public key !

requinham

Hi,

When i use QCA, I can't decrypt with public key and encrypt with private.
In documentation, private key is for decrypting and public key is for encrypting but the asymetric system don't like this.

If we want garantee non-repudiation we also need to encrypt with private key and decrypt with public !

Can someone tell me how solve this problem or ask me if it's a limitation of QCA ?

Regards,
Mohamed

Hostel

Paste some code and write what is wrong.

requinham

the problem don't concern part of code, it concern the conception of API of QCA. Normally with RSA and other asymetric algorithms it's possible to encrypt with private key and decrypt with public key.

In QCA this is not supported !

Regards,
Mohamed

noname120

Of course you can, here is a proof:
http://harmattan-dev.nokia.com/docs/platform-api-reference/xml/daily-docs/libqca2/classQCA_1_1PKey.html#62d01121d3790d4d80cd4e3d60fa0ee6

requinham

Hi,
I don't think it's a proof because in publickey class there is just method to encrypt but without decrypting and in privatkey class method to decrypt without encypting !
May be I don't understand you ?

Regards,
Mohamed

noname120

You should take a look at this example:
http://delta.affinix.com/docs/qca/rsatest_8cpp-example.html#_a8