RE: [PATCH v9 2/3] crypto: kpp - Add DH software implementation

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> -----Original Message-----
> From: Herbert Xu [mailto:herbert@xxxxxxxxxxxxxxxxxxx]
> Sent: Monday, June 20, 2016 12:15 PM
> To: Benedetto, Salvatore <salvatore.benedetto@xxxxxxxxx>
> Cc: linux-crypto@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v9 2/3] crypto: kpp - Add DH software implementation
> 
> On Fri, Jun 17, 2016 at 03:37:44PM +0100, Salvatore Benedetto wrote:
> >  * Implement MPI based Diffie-Hellman under kpp API
> >
> > +struct dh {
> > +	void *key;
> > +	void *p;
> > +	void *g;
> > +	unsigned int key_size;
> > +	unsigned int p_size;
> > +	unsigned int g_size;
> > +};
> > +
> > +int crypto_dh_key_len(const struct dh *params); int
> > +crypto_dh_encode_key(char *buf, unsigned int len, const struct dh
> > +*params); int crypto_dh_decode_key(const char *buf, unsigned int len,
> > +struct dh **params);
> 
> While you're at it, it would be nice if you could make the encoded format
> little-endian, that way we can make test vectors for all kpp algorithms use
> the same format.
> 

The input format is the same for DH and ECDH.
Only the software implementation of ECC requires little-endian format.

Regards,
Salvatore

> Thanks,
> --
> Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page:
> http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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