[PATCH] mpi:ec: Least leak with k^(-1) for ECDSA.

[NIIBE Yutaka]

* src/mpi.h (_gcry_mpi_assign_limb_space): Add.
(_gcry_mpih_mod_lli, _gcry_mpih_mul_lli): Add.
* cipher/ecc-ecdsa.c (_gcry_ecc_ecdsa_sign): Take care
about least leak with k^(-1).

--

GnuPG-bug-id: 7519
Signed-off-by: NIIBE Yutaka <gniibe at fsij.org>
---
 cipher/ecc-ecdsa.c | 20 +++++++++++++++++++-
 src/mpi.h          |  7 +++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

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