[manuf] add CA for endorsing certs in perso extension

This CA should have a pathlen of 0. This fixes lowRISC#24955.

Signed-off-by: Tim Trippel <[email protected]>

sw/device/silicon_creator/manuf/base/provisioning_inputs.bzl

@@ -69,7 +69,6 @@ CP_PROVISIONING_INPUTS = _DEVICE_ID_AND_TEST_TOKENS + """
   --wafer-auth-secret="0x00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000"
 """
 
-# Note that uds-auth-key-id below is the actual hash of the public key of cert_endorsement_key.sk.der
 FT_PROVISIONING_INPUTS = _DEVICE_ID_AND_TEST_TOKENS + """
   --target-mission-mode-lc-state="prod"
   --rma-unlock-token="0x01234567_89abcdef_01234567_89abcdef"

sw/device/silicon_creator/manuf/keys/fake/BUILD

@@ -9,8 +9,9 @@ exports_files(glob(["**"]))
 filegroup(
     name = "ca_data",
     srcs = [
-        ":ca.pem",
         ":ca_config.json",
+        ":dice_ca.pem",
+        ":ext_ca.pem",
         ":sk.pkcs8.der",
     ],
 )

sw/device/silicon_creator/manuf/keys/fake/ca_config.json

@@ -1,12 +1,12 @@
 {
   "dice": {
-    "certificate": "sw/device/silicon_creator/manuf/keys/fake/ca.pem",
+    "certificate": "sw/device/silicon_creator/manuf/keys/fake/dice_ca.pem",
     "key_id": "0xfe584ae7_53790cfd_8601a312_fb32d3c1_b822d112",
     "key_type": "Raw",
     "key": "sw/device/silicon_creator/manuf/keys/fake/sk.pkcs8.der"
   },
   "ext": {
-    "certificate": "sw/device/silicon_creator/manuf/keys/fake/ca.pem",
+    "certificate": "sw/device/silicon_creator/manuf/keys/fake/ext_ca.pem",
     "key_id": "0xfe584ae7_53790cfd_8601a312_fb32d3c1_b822d112",
     "key_type": "Raw",
     "key": "sw/device/silicon_creator/manuf/keys/fake/sk.pkcs8.der"

sw/device/silicon_creator/manuf/keys/fake/ca.csr → sw/device/silicon_creator/manuf/keys/fake/dice_ca.csr

@@ -1,9 +1,9 @@
 -----BEGIN CERTIFICATE REQUEST-----
-MIIBHTCBxAIBADBiMQswCQYDVQQGEwJVUzELMAkGA1UECAwCQ0ExDzANBgNVBAoM
+MIIBHjCBxAIBADBiMQswCQYDVQQGEwJVUzELMAkGA1UECAwCQ0ExDzANBgNVBAoM
 Bkdvb2dsZTEUMBIGA1UECwwLRW5naW5lZXJpbmcxHzAdBgNVBAMMFkdvb2dsZSBF
 bmdpbmVlcmluZyBJQ0EwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARhCQgjUnab
 iUu5ivmebhjhb+4TQuX/A2SWLfzDeQGDuCjsezqPTEP1OHqu3GlW3ovZhyp40Ju5
-IwR1vy/vNJkVoAAwCgYIKoZIzj0EAwIDSAAwRQIhANepinY8fzxEZ3EyxMymfFjk
-9X+Rd9HbyxPkzSD8vi7wAiAWLyR99Lk9wc2GgXKcA6COmQzCB9bzlGAdYJSDrMVM
-jg==
+IwR1vy/vNJkVoAAwCgYIKoZIzj0EAwIDSQAwRgIhANd3QObsB9NM9Lc+EH9cCmAK
+fmqincHoi4gok4ETUimBAiEAiM66dAP5wWVUx44EbwqCxfaHqzstUhvReMY+NFUk
+9sw=
 -----END CERTIFICATE REQUEST-----

sw/device/silicon_creator/manuf/keys/fake/ca.pem → sw/device/silicon_creator/manuf/keys/fake/dice_ca.pem

@@ -1,17 +1,17 @@
 -----BEGIN CERTIFICATE-----
-MIICqjCCAk+gAwIBAgIUG0NwWZ6+cxC7v+kO6zyiRNjbB64wCgYIKoZIzj0EAwIw
+MIICqjCCAk+gAwIBAgIUJv7onAWj7JNoJSyEsCUBgjk2+zYwCgYIKoZIzj0EAwIw
 YjELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNBMQ8wDQYDVQQKDAZHb29nbGUxFDAS
 BgNVBAsMC0VuZ2luZWVyaW5nMR8wHQYDVQQDDBZHb29nbGUgRW5naW5lZXJpbmcg
-SUNBMB4XDTI0MTAzMDIyNTYxMloXDTM0MTAyODIyNTYxMlowYjELMAkGA1UEBhMC
+SUNBMB4XDTI0MTEyMDA1NTAwMVoXDTM0MTExODA1NTAwMVowYjELMAkGA1UEBhMC
 VVMxCzAJBgNVBAgMAkNBMQ8wDQYDVQQKDAZHb29nbGUxFDASBgNVBAsMC0VuZ2lu
 ZWVyaW5nMR8wHQYDVQQDDBZHb29nbGUgRW5naW5lZXJpbmcgSUNBMFkwEwYHKoZI
 zj0CAQYIKoZIzj0DAQcDQgAEYQkII1J2m4lLuYr5nm4Y4W/uE0Ll/wNkli38w3kB
 g7go7Hs6j0xD9Th6rtxpVt6L2YcqeNCbuSMEdb8v7zSZFaOB4jCB3zAdBgNVHQ4E
 FgQU/lhK51N5DP2GAaMS+zLTwbgi0RIwgZ8GA1UdIwSBlzCBlIAU/lhK51N5DP2G
 AaMS+zLTwbgi0RKhZqRkMGIxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJDQTEPMA0G
 A1UECgwGR29vZ2xlMRQwEgYDVQQLDAtFbmdpbmVlcmluZzEfMB0GA1UEAwwWR29v
-Z2xlIEVuZ2luZWVyaW5nIElDQYIUG0NwWZ6+cxC7v+kO6zyiRNjbB64wDwYDVR0T
-AQH/BAUwAwEB/zALBgNVHQ8EBAMCAYYwCgYIKoZIzj0EAwIDSQAwRgIhAJiPs5uH
-cbsQqf5sL33xJP2QjgqiAl1SuQn3axk3OxmLAiEAi85Nj0coqJ46qdSdQ78msnMf
-a75PcoVcLy67k6leXuw=
+Z2xlIEVuZ2luZWVyaW5nIElDQYIUJv7onAWj7JNoJSyEsCUBgjk2+zYwDwYDVR0T
+AQH/BAUwAwEB/zALBgNVHQ8EBAMCAYYwCgYIKoZIzj0EAwIDSQAwRgIhAPzca+db
+ovJwN1OmPDGgSicNps3RWvrP/nksY4farEYxAiEA/L0dVERnafk9Td91vfwgVkdh
+hz/d1FGzU4U3yK/mSxo=
 -----END CERTIFICATE-----

sw/device/silicon_creator/manuf/keys/fake/ext_ca.conf

@@ -0,0 +1,19 @@
+[req]
+default_bits = 2048
+prompt = no
+default_md = sha256
+distinguished_name = dn
+x509_extensions = v3_ca
+
+[dn]
+C=US
+ST=CA
+O=Google
+OU=Engineering
+CN=Google Engineering ICA
+
+[v3_ca]
+subjectKeyIdentifier = hash
+authorityKeyIdentifier = keyid:always,issuer:always
+basicConstraints = critical,CA:true,pathlen:0
+keyUsage = digitalSignature, keyCertSign, cRLSign

sw/device/silicon_creator/manuf/keys/fake/ext_ca.csr

@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBHDCBxAIBADBiMQswCQYDVQQGEwJVUzELMAkGA1UECAwCQ0ExDzANBgNVBAoM
+Bkdvb2dsZTEUMBIGA1UECwwLRW5naW5lZXJpbmcxHzAdBgNVBAMMFkdvb2dsZSBF
+bmdpbmVlcmluZyBJQ0EwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARhCQgjUnab
+iUu5ivmebhjhb+4TQuX/A2SWLfzDeQGDuCjsezqPTEP1OHqu3GlW3ovZhyp40Ju5
+IwR1vy/vNJkVoAAwCgYIKoZIzj0EAwIDRwAwRAIgDaVN/ErF4G+Cik+kI+CWzyYM
+H5RTVTlnWMeNjN+/7hgCIDXx+UNTnVHTn65zpBIA2gcrNSQuVWNdP4FenkaQ6rzE
+-----END CERTIFICATE REQUEST-----

sw/device/silicon_creator/manuf/keys/fake/ext_ca.pem

@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

sw/device/silicon_creator/manuf/keys/fake/gen_fake_ca.sh

@@ -3,40 +3,29 @@
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 #
-# This script will generate two self signed CA certificates, both using the same
-# configuration defined in ca.conf, but signed by different private keys.
-# One using the test key file present in the current directory and the other one
-# a key stored in Google Cloud KMS.
-#
-# Signing with Cloud KMS requires the following:
-# - a Google KMS integration library
-#   (https://github.com/GoogleCloudPlatform/kms-integrations) module
-# - a configuration file describing the Cloud KMS project containing the key.
-#
-# PKCS11_MODULE_PATH and KMS_PKCS11_CONFIG environment variables are set to
-# point at these objects. If both variables are present the script attempts to
-# generate a Cloud KMS signed certificate.
+# This script will generate two self signed CA certificates, each using a
+# different configuration, but signed by the same (fake) private keys. These
+# root CA certificates may be used for testing perso flows on the FPGA.
 
 set -e
 
 cd "$(dirname "$0")"
-echo "Generating fake key CA cert ..."
-openssl req -new -key raw/sk.pkcs8.der -keyform der \
-        -out raw/ca.csr -config ca.conf
-openssl x509 -req -in raw/ca.csr -signkey raw/sk.pkcs8.der \
-        -keyform der -out raw/ca.pem -days 3650 -extfile ca.conf \
+
+DICE_CA_KEY="sk.pkcs8.der"
+EXT_CA_KEY="$DICE_CA_KEY"
+
+echo "Generating fake key DICE CA cert ..."
+openssl req -new -key "$DICE_CA_KEY" -keyform der \
+        -out dice_ca.csr -config dice_ca.conf
+openssl x509 -req -in dice_ca.csr -signkey "$DICE_CA_KEY" \
+        -keyform der -out dice_ca.pem -days 3650 -extfile dice_ca.conf \
         -extensions v3_ca
 echo "Done."
 
-if [[ -z ${KMS_PKCS11_CONFIG} || -z ${PKCS11_MODULE_PATH} ]]; then
-  echo "Cloud KMS env not set, skipping Cloud KMS cert generation"
-  exit 0
-fi
-echo "Generating Cloud KMS key CA cert ..."
-openssl req -new  -key pkcs11:object=gcs-kms-earlgrey-ze-ca-p256-sha256-key \
-          -engine pkcs11 -keyform engine -out ckms/ca.csr -config ca.conf
-openssl x509 -req -in ckms/ca.csr  \
-        -engine pkcs11 -keyform engine \
-        -key pkcs11:object=gcs-kms-earlgrey-ze-ca-p256-sha256-key \
-        -out ckms/ca.pem -days 140 -extfile ca.conf -extensions v3_ca
+echo "Generating fake key Personalization Extension CA cert ..."
+openssl req -new -key "$EXT_CA_KEY" -keyform der \
+        -out ext_ca.csr -config ext_ca.conf
+openssl x509 -req -in ext_ca.csr -signkey "$EXT_CA_KEY"  \
+        -keyform der -out ext_ca.pem -days 3650 -extfile ext_ca.conf \
+        -extensions v3_ca
 echo "Done."

sw/host/provisioning/cert_lib/BUILD

@@ -9,7 +9,7 @@ package(default_visibility = ["//visibility:public"])
 rust_library(
     name = "cert_lib",
     srcs = ["src/lib.rs"],
-    data = ["//sw/device/silicon_creator/manuf/keys/fake:ca.pem"],
+    data = ["//sw/device/silicon_creator/manuf/keys/fake:ext_ca.pem"],
     deps = [
         "//sw/host/opentitanlib",
         "//sw/host/ot_certs",

sw/host/provisioning/cert_lib/src/lib.rs

@@ -294,7 +294,7 @@ mod tests {
 
     #[test]
     fn validate_good() {
-        let ca_pem = "./sw/device/silicon_creator/manuf/keys/fake/raw/raw_ca.pem";
+        let ca_pem = "./sw/device/silicon_creator/manuf/keys/fake/ext_ca.pem";
         // The below byte blob is a proper TPM EK certificate generated during test runs.
         let mut cert0 = EndorsedCert {
             format: CertFormat::X509,