diff options
| author | Simon Glass <sjg@chromium.org> | 2013-06-13 15:10:02 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-26 10:18:56 -0400 |
| commit | 19c402afa2e1190f596f35a84ac049b10d814f1f (patch) | |
| tree | 4f4d2302f4b6fa01e9a2214dee6bfe75e220a010 /lib/rsa/Makefile | |
| parent | 56518e71041fafdfd7af3a24f263b0a22efbeda9 (diff) | |
image: Add RSA support for image signing
RSA provides a public key encryption facility which is ideal for image
signing and verification.
Images are signed using a private key by mkimage. Then at run-time, the
images are verified using a private key.
This implementation uses openssl for the host part (mkimage). To avoid
bringing large libraries into the U-Boot binary, the RSA public key
is encoded using a simple numeric representation in the device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib/rsa/Makefile')
| -rw-r--r-- | lib/rsa/Makefile | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/rsa/Makefile b/lib/rsa/Makefile new file mode 100644 index 0000000000..9eb3e40f56 --- /dev/null +++ b/lib/rsa/Makefile @@ -0,0 +1,48 @@ +# +# Copyright (c) 2013, Google Inc. +# +# (C) Copyright 2000-2007 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)librsa.o + +ifdef CONFIG_FIT_SIGNATURE +COBJS-$(CONFIG_RSA) += rsa-verify.o +endif + +COBJS := $(sort $(COBJS-y)) +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### |