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* crypto: kpp - constify buffer passed to crypto_kpp_set_secret()Eric Biggers2017-03-091-1/+2
| | | | | | | | Constify the buffer passed to crypto_kpp_set_secret() and kpp_alg.set_secret, since it is never modified. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: dh - Consistenly return negative error codesMat Martineau2016-11-131-1/+1
| | | | | | | 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>
* crypto: rsa - Generate fixed-length outputHerbert Xu2016-07-011-1/+1
| | | | | | | | | | | | | | | | 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>
* crypto: dh - Add DH software implementationSalvatore Benedetto2016-06-231-0/+189
* 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>
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