tree b45ec8a5dd39a52b4d49ea2fa17e8dfdb8b7c494
parent 72177e362b4298bf9349861c430dd6d44c1a5ebb
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1592381563 +0200
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1592381563 +0200

Fix potential memory overread in seed functions

The previous commit introduced a potential memory overread by reading
secret_len bytes from secret->p, while the is no guarantee that secret has
enough limbs for that.

Fix that by using an intermediate buffer and mpi_write_binary().

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>