diff mbox series

[v3,03/13] layer.conf: Introduce UEFI_SB_KEYS_DIR

Message ID 20240822014335.3394568-4-javier.tia@linaro.org
State New
Headers show
Series qemuarm64-secureboot: Add UEFI Secure Boot | expand

Commit Message

Javier Tia Aug. 22, 2024, 1:43 a.m. UTC 
UEFI_SB_KEYS_DIR saves UEFI keys path.

To avoid security issues, UEFI keys are not provided and they can be
generated by gen_uefi_keys.sh script.

Signed-off-by: Javier Tia <javier.tia@linaro.org>
---
 meta-arm/conf/layer.conf               |  2 ++
 meta-arm/uefi-sb-keys/gen_uefi_keys.sh | 35 ++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100755 meta-arm/uefi-sb-keys/gen_uefi_keys.sh
diff mbox series

Patch

diff --git a/meta-arm/conf/layer.conf b/meta-arm/conf/layer.conf
index 9e9c9dbd..2854dd69 100644
--- a/meta-arm/conf/layer.conf
+++ b/meta-arm/conf/layer.conf
@@ -21,3 +21,5 @@  HOSTTOOLS_NONFATAL += "telnet"
 addpylib ${LAYERDIR}/lib oeqa
 
 WARN_QA:append:layer-meta-arm = " patch-status"
+
+UEFI_SB_KEYS_DIR ??= "${LAYERDIR}/uefi-sb-keys"
\ No newline at end of file
diff --git a/meta-arm/uefi-sb-keys/gen_uefi_keys.sh b/meta-arm/uefi-sb-keys/gen_uefi_keys.sh
new file mode 100755
index 00000000..fc7f25c9
--- /dev/null
+++ b/meta-arm/uefi-sb-keys/gen_uefi_keys.sh
@@ -0,0 +1,35 @@ 
+#/bin/sh
+
+set -eux
+
+#Create PK
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=Linaro_LEDGE/ -keyout PK.key -out PK.crt -nodes -days 3650
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc PK.crt PK.esl
+sign-efi-sig-list -c PK.crt -k PK.key PK PK.esl PK.auth
+
+#Create KEK
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=Linaro_LEDGE/ -keyout KEK.key -out KEK.crt -nodes -days 3650
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc KEK.crt KEK.esl
+sign-efi-sig-list -c PK.crt -k PK.key KEK KEK.esl KEK.auth
+
+#Create DB
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=Linaro_LEDGE/ -keyout db.key -out db.crt -nodes -days 3650
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc db.crt db.esl
+sign-efi-sig-list -c KEK.crt -k KEK.key db db.esl db.auth
+
+#Create DBX
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=Linaro_LEDGE/ -keyout dbx.key -out dbx.crt -nodes -days 3650
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc dbx.crt dbx.esl
+sign-efi-sig-list -c KEK.crt -k KEK.key dbx dbx.esl dbx.auth
+
+#Sign image
+#sbsign --key db.key --cert db.crt Image
+
+#Digest image
+#hash-to-efi-sig-list Image db_Image.hash
+#sign-efi-sig-list -c KEK.crt -k KEK.key db db_Image.hash db_Image.auth
+
+#Empty cert for testing
+touch noPK.esl
+sign-efi-sig-list -c PK.crt -k PK.key PK noPK.esl noPK.auth
+