lib: crypto: add mscode_parser
In MS authenticode, pkcs7 should have data in its contentInfo field.
This data is tagged with SpcIndirectData type and, for a signed PE image,
provides a image's message digest as SpcPeImageData.
This parser is used in image authentication to parse the field and
retrieve a message digest.
Imported from linux v5.19-rc, crypto/asymmetric_keys/mscode*.
Checkpatch.pl generates tones of warnings, but those are not fixed
for the sake of maintainability (importing from another source).
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index 6792b1d..bec1bc9 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile
@@ -55,3 +55,15 @@
$(obj)/pkcs7_parser.o: $(obj)/pkcs7.asn1.h
$(obj)/pkcs7.asn1.o: $(obj)/pkcs7.asn1.c $(obj)/pkcs7.asn1.h
+
+#
+# Signed PE binary-wrapped key handling
+#
+obj-$(CONFIG_$(SPL_)MSCODE_PARSER) += mscode.o
+
+mscode-y := \
+ mscode_parser.o \
+ mscode.asn1.o
+
+$(obj)/mscode_parser.o: $(obj)/mscode.asn1.h $(obj)/mscode.asn1.h
+$(obj)/mscode.asn1.o: $(obj)/mscode.asn1.c $(obj)/mscode.asn1.h