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3 Commits

Author SHA1 Message Date
Mat Martineau
8edda7d22a crypto: dh - Consistenly return negative error codes 
Fix the single instance where a positive EINVAL was returned.

Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2016-11-13 17:45:04 +08:00
Herbert Xu
9b45b7bba3 crypto: rsa - Generate fixed-length output 
Every implementation of RSA that we have naturally generates
output with leading zeroes.  The one and only user of RSA,
pkcs1pad wants to have those leading zeroes in place, in fact
because they are currently absent it has to write those zeroes
itself.

So we shouldn't be stripping leading zeroes in the first place.
In fact this patch makes rsa-generic produce output with fixed
length so that pkcs1pad does not need to do any extra work.

This patch also changes DH to use the new interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2016-07-01 23:45:18 +08:00
Salvatore Benedetto
802c7f1c84 crypto: dh - Add DH software implementation 
* Implement MPI based Diffie-Hellman under kpp API
 * Test provided uses data generad by OpenSSL

Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2016-06-23 18:29:56 +08:00