Cert tweaks to names and TCB info (#1725)

chipsalliance · Dec 13, 2024 · ce66fbc · ce66fbc
1 parent 4791682
commit ce66fbc
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Showing 24 changed files with 161 additions and 141 deletions.
diff --git a/FROZEN_IMAGES.sha384sum b/FROZEN_IMAGES.sha384sum
@@ -1,3 +1,3 @@
 # WARNING: Do not update this file without the approval of the Caliptra TAC
-91b951fbe655919a1e123b86add18ab604d049f6d2b2bbefac4cd554a4411eaf22247973c47490e243b9a5b1d197feb3  caliptra-rom-no-log.bin
-105cda4bbc0f2f0096d058eda9090670da0d90c8e3066cb44027843e9a490db61933b524ca78fe78351a7fd26a124c03  caliptra-rom-with-log.bin
+9537318fd30c3e3d341cffab5721ba3242810be85e79ed9dc644c47c062555ef7519fb48857745e7ccb9917ac1fe120a  caliptra-rom-no-log.bin
+e4e74d2d1c4794b950a548072fc8dc4c9ab64aba7a01ae400e9fe66c64b43f715e72dc430e7318496009ebedd0412bc6  caliptra-rom-with-log.bin
diff --git a/fmc/tests/fmc_integration_tests/test_rtalias.rs b/fmc/tests/fmc_integration_tests/test_rtalias.rs
@@ -91,7 +91,7 @@ fn test_fht_info() {
     let data = hw.mailbox_execute(TEST_CMD_READ_FHT, &[]).unwrap().unwrap();
     let fht = FirmwareHandoffTable::read_from_prefix(data.as_bytes()).unwrap();
     assert_eq!(fht.ldevid_tbs_size, 552);
-    assert_eq!(fht.fmcalias_tbs_size, 786);
+    assert_eq!(fht.fmcalias_tbs_size, 753);
     assert_eq!(fht.ldevid_tbs_addr, 0x50003C00);
     assert_eq!(fht.fmcalias_tbs_addr, 0x50004000);
     assert_eq!(fht.pcr_log_addr, 0x50004800);

diff --git a/libcaliptra/examples/generic/idev_csr_array.h b/libcaliptra/examples/generic/idev_csr_array.h
@@ -2,28 +2,34 @@
 // Generated from test/tests/caliptra_integration_tests/smoke_testdata/idev_csr.der
 
 #include <stdint.h>
-#define IDEV_CSR_LEN  443
+#define IDEV_CSR_LEN  444
 uint8_t idev_csr_bytes[IDEV_CSR_LEN] = {
-    48, 130, 1, 183, 48, 130, 1, 62, 2, 1, 0, 48, 105, 49, 28, 48, 26, 6, 
-    3, 85, 4, 3, 12, 19, 67, 97, 108, 105, 112, 116, 114, 97, 32, 49, 46, 
-    48, 32, 73, 68, 101, 118, 73, 68, 49, 73, 48, 71, 6, 3, 85, 4, 5, 19, 
-    64, 56, 69, 51, 67, 49, 65, 48, 53, 56, 70, 55, 48, 52, 65, 49, 49, 56, 
-    50, 49, 70, 55, 66, 52, 56, 68, 51, 52, 48, 65, 69, 70, 57, 57, 68, 68, 
-    65, 66, 65, 68, 67, 49, 48, 57, 48, 68, 55, 52, 68, 48, 53, 55, 70, 69, 
-    67, 67, 70, 55, 51, 50, 57, 52, 69, 68, 54, 48, 118, 48, 16, 6, 7, 42, 134, 
-    72, 206, 61, 2, 1, 6, 5, 43, 129, 4, 0, 34, 3, 98, 0, 4, 215, 180, 133, 242, 
-    159, 17, 92, 28, 179, 4, 107, 132, 11, 69, 137, 181, 120, 98, 245, 235, 249, 
-    157, 132, 111, 190, 63, 210, 209, 67, 150, 245, 246, 154, 55, 154, 89, 172, 
-    197, 162, 174, 200, 54, 158, 203, 101, 144, 68, 55, 180, 188, 124, 217, 165, 
-    168, 64, 60, 91, 177, 145, 82, 35, 170, 134, 190, 242, 193, 188, 146, 20, 95, 252, 
-    39, 193, 37, 198, 219, 250, 212, 156, 145, 232, 72, 197, 68, 172, 127, 14, 149, 214,
-     205, 140, 172, 251, 146, 63, 166, 160, 86, 48, 84, 6, 9, 42, 134, 72, 134, 247, 13, 
-     1, 9, 14, 49, 71, 48, 69, 48, 18, 6, 3, 85, 29, 19, 1, 1, 255, 4, 8, 48, 6, 1, 1, 255, 2
-     , 1, 5, 48, 14, 6, 3, 85, 29, 15, 1, 1, 255, 4, 4, 3, 2, 2, 4, 48, 31, 6, 6, 103, 129, 5, 5, 
-     4, 4, 4, 21, 48, 19, 4, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 10, 6, 8, 42, 
-     134, 72, 206, 61, 4, 3, 3, 3, 103, 0, 48, 100, 2, 48, 124, 116, 253, 40, 206, 15, 249, 233, 218, 239
-     ,144, 132, 165, 175, 192, 66, 209, 226, 8, 132, 103, 214, 106, 232, 220, 70, 204, 2, 29, 128, 218, 55, 80, 
-     145, 238, 117, 9, 237, 21, 85, 15, 49, 21, 35, 201, 187, 230, 225, 2, 48, 36, 253, 27, 91, 71, 204, 20, 74, 102,
-    165, 187, 231, 4, 116, 240, 33, 54, 55, 244, 158, 93, 205, 161, 66, 191, 246, 130, 92, 161, 244, 81, 67, 226, 151, 
-    252, 149, 206, 86, 177, 103, 225, 191, 225, 38, 58, 206, 161, 243, 
+    0x30, 0x82, 0x01, 0xb8, 0x30, 0x82, 0x01, 0x3e, 0x02, 0x01, 0x00, 0x30, 0x69, 0x31, 0x1c, 0x30,
+    0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x43, 0x61, 0x6c, 0x69, 0x70, 0x74, 0x72, 0x61,
+    0x20, 0x31, 0x2e, 0x78, 0x20, 0x49, 0x44, 0x65, 0x76, 0x49, 0x44, 0x31, 0x49, 0x30, 0x47, 0x06,
+    0x03, 0x55, 0x04, 0x05, 0x13, 0x40, 0x38, 0x45, 0x33, 0x43, 0x31, 0x41, 0x30, 0x35, 0x38, 0x46,
+    0x37, 0x30, 0x34, 0x41, 0x31, 0x31, 0x38, 0x32, 0x31, 0x46, 0x37, 0x42, 0x34, 0x38, 0x44, 0x33,
+    0x34, 0x30, 0x41, 0x45, 0x46, 0x39, 0x39, 0x44, 0x44, 0x41, 0x42, 0x41, 0x44, 0x43, 0x31, 0x30,
+    0x39, 0x30, 0x44, 0x37, 0x34, 0x44, 0x30, 0x35, 0x37, 0x46, 0x45, 0x43, 0x43, 0x46, 0x37, 0x33,
+    0x32, 0x39, 0x34, 0x45, 0x44, 0x36, 0x30, 0x76, 0x30, 0x10, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce,
+    0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x22, 0x03, 0x62, 0x00, 0x04, 0xd7, 0xb4,
+    0x85, 0xf2, 0x9f, 0x11, 0x5c, 0x1c, 0xb3, 0x04, 0x6b, 0x84, 0x0b, 0x45, 0x89, 0xb5, 0x78, 0x62,
+    0xf5, 0xeb, 0xf9, 0x9d, 0x84, 0x6f, 0xbe, 0x3f, 0xd2, 0xd1, 0x43, 0x96, 0xf5, 0xf6, 0x9a, 0x37,
+    0x9a, 0x59, 0xac, 0xc5, 0xa2, 0xae, 0xc8, 0x36, 0x9e, 0xcb, 0x65, 0x90, 0x44, 0x37, 0xb4, 0xbc,
+    0x7c, 0xd9, 0xa5, 0xa8, 0x40, 0x3c, 0x5b, 0xb1, 0x91, 0x52, 0x23, 0xaa, 0x86, 0xbe, 0xf2, 0xc1,
+    0xbc, 0x92, 0x14, 0x5f, 0xfc, 0x27, 0xc1, 0x25, 0xc6, 0xdb, 0xfa, 0xd4, 0x9c, 0x91, 0xe8, 0x48,
+    0xc5, 0x44, 0xac, 0x7f, 0x0e, 0x95, 0xd6, 0xcd, 0x8c, 0xac, 0xfb, 0x92, 0x3f, 0xa6, 0xa0, 0x56,
+    0x30, 0x54, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x0e, 0x31, 0x47, 0x30,
+    0x45, 0x30, 0x12, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x08, 0x30, 0x06, 0x01,
+    0x01, 0xff, 0x02, 0x01, 0x05, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04,
+    0x04, 0x03, 0x02, 0x02, 0x04, 0x30, 0x1f, 0x06, 0x06, 0x67, 0x81, 0x05, 0x05, 0x04, 0x04, 0x04,
+    0x15, 0x30, 0x13, 0x04, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04,
+    0x03, 0x03, 0x03, 0x68, 0x00, 0x30, 0x65, 0x02, 0x31, 0x00, 0xed, 0x8e, 0x44, 0x4e, 0x3c, 0x7f,
+    0x6f, 0x96, 0x4a, 0x5d, 0xcb, 0xe1, 0xea, 0x08, 0xa0, 0x57, 0xf5, 0xd7, 0xb5, 0x6d, 0xce, 0x72,
+    0x9e, 0xb8, 0x8c, 0x88, 0x38, 0xf6, 0x50, 0x35, 0x90, 0xbd, 0x6b, 0x59, 0xdb, 0x29, 0x52, 0x13,
+    0x2e, 0xfc, 0xa8, 0xb6, 0x8d, 0x8a, 0x33, 0xd3, 0x2a, 0xcf, 0x02, 0x30, 0x6d, 0x40, 0x6a, 0x1f,
+    0x7c, 0x9e, 0x74, 0x8f, 0x28, 0xdc, 0x14, 0x73, 0xe0, 0x96, 0x92, 0xd8, 0x74, 0xfa, 0x30, 0x58,
+    0x04, 0x54, 0x84, 0x77, 0xe9, 0x52, 0x3a, 0x0d, 0x63, 0xfa, 0xf3, 0x1a, 0x68, 0xc3, 0x88, 0x07,
+    0x50, 0xa7, 0x5d, 0x6f, 0xf7, 0xa9, 0xda, 0x98, 0xf7, 0x8c, 0x48, 0x2a,
 };
diff --git a/rom/dev/build.rs b/rom/dev/build.rs
@@ -86,10 +86,13 @@ fn main() {
         use x509_parser::signature_value::EcdsaSigValue;
 
         let ws_dir = workspace_dir();
-        let ldev_file = std::fs::read(
-            ws_dir.join("test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.der"),
-        )
-        .unwrap();
+        let ldev_file_path =
+            ws_dir.join("test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.der");
+        println!(
+            "cargo:rerun-if-changed={}",
+            ldev_file_path.to_str().unwrap()
+        );
+        let ldev_file = std::fs::read(ldev_file_path).unwrap();
 
         let mut parser = X509CertificateParser::new();
         let (_, cert) = parser.parse(&ldev_file).unwrap();

diff --git a/rom/dev/src/flow/cold_reset/fmc_alias.rs b/rom/dev/src/flow/cold_reset/fmc_alias.rs
@@ -252,6 +252,6 @@ impl FmcAliasLayer {
             flags |= dice::FLAG_BIT_DEBUG;
         }
 
-        flags.to_be_bytes()
+        flags.reverse_bits().to_be_bytes()
     }
 }
diff --git a/rom/dev/tests/rom_integration_tests/test_fmcalias_derivation.rs b/rom/dev/tests/rom_integration_tests/test_fmcalias_derivation.rs
@@ -742,7 +742,7 @@ fn test_fht_info() {
     let data = hw.mailbox_execute(0x1000_0003, &[]).unwrap().unwrap();
     let fht = FirmwareHandoffTable::read_from_prefix(data.as_bytes()).unwrap();
     assert_eq!(fht.ldevid_tbs_size, 552);
-    assert_eq!(fht.fmcalias_tbs_size, 786);
+    assert_eq!(fht.fmcalias_tbs_size, 753);
     assert_eq!(fht.ldevid_tbs_addr, LDEVID_TBS_ORG);
     assert_eq!(fht.fmcalias_tbs_addr, FMCALIAS_TBS_ORG);
     assert_eq!(fht.pcr_log_addr, PCR_LOG_ORG);

diff --git a/runtime/src/dpe_platform.rs b/runtime/src/dpe_platform.rs
@@ -108,7 +108,7 @@ impl Platform for DpePlatform<'_> {
         &mut self,
         out: &mut [u8; MAX_ISSUER_NAME_SIZE],
     ) -> Result<usize, PlatformError> {
-        const CALIPTRA_CN: &[u8] = b"Caliptra 1.0 Rt Alias";
+        const CALIPTRA_CN: &[u8] = b"Caliptra 1.x Rt Alias";
         let mut issuer_writer = CertWriter::new(out, true);
 
         // Caliptra RDN SerialNumber field is always a Sha256 hash

diff --git a/test/src/x509.rs b/test/src/x509.rs
@@ -68,7 +68,10 @@ impl DiceTcbInfo {
                 })
                 .transpose()?
                 .unwrap_or_default(),
-            flags: d.read_optional_implicit_element(7)?,
+            flags: d
+                .read_optional_implicit_element::<asn1::BitString>(7)?
+                .and_then(|b| b.as_bytes().try_into().ok())
+                .map(u32::from_be_bytes),
             vendor_info: d
                 .read_optional_implicit_element::<&[u8]>(8)?
                 .map(|s| s.to_vec()),

diff --git a/test/tests/caliptra_integration_tests/smoke_test.rs b/test/tests/caliptra_integration_tests/smoke_test.rs
@@ -66,8 +66,8 @@ fn retrieve_csr_test() {
     let csr_txt = String::from_utf8(csr.to_text().unwrap()).unwrap();
 
     // To update the CSR testdata:
-    // std::fs::write("tests/smoke_testdata/idevid_csr.txt", &csr_txt).unwrap();
-    // std::fs::write("tests/smoke_testdata/idevid_csr.der", &csr_der).unwrap();
+    // std::fs::write("tests/caliptra_integration_tests/smoke_testdata/idevid_csr.txt", &csr_txt).unwrap();
+    // std::fs::write("tests/caliptra_integration_tests/smoke_testdata/idevid_csr.der", &csr_der).unwrap();
 
     println!("csr: {}", csr_txt);
 
@@ -214,8 +214,8 @@ fn smoke_test() {
     let ldev_cert_txt = String::from_utf8(ldev_cert.to_text().unwrap()).unwrap();
 
     // To update the ldev cert testdata:
-    // std::fs::write("tests/smoke_testdata/ldevid_cert.txt", &ldev_cert_txt).unwrap();
-    // std::fs::write("tests/smoke_testdata/ldevid_cert.der", ldev_cert_der).unwrap();
+    // std::fs::write("tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.txt", &ldev_cert_txt).unwrap();
+    // std::fs::write("tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.der", ldev_cert_der).unwrap();
 
     assert_eq!(
         ldev_cert_txt.as_str(),
@@ -277,22 +277,22 @@ fn smoke_test() {
         dice_tcb_info,
         [
             DiceTcbInfo {
-                vendor: Some("Caliptra".into()),
-                model: Some("Device".into()),
+                vendor: None,
+                model: None,
                 // This is from the SVN in the fuses (7 bits set)
                 svn: Some(0x107),
                 fwids: vec![DiceFwid {
                     hash_alg: asn1::oid!(2, 16, 840, 1, 101, 3, 4, 2, 2),
                     digest: device_info_hash.to_vec(),
                 },],
 
-                flags: Some(0x80000000),
+                flags: Some(0x00000001),
                 ty: Some(b"DEVICE_INFO".to_vec()),
                 ..Default::default()
             },
             DiceTcbInfo {
-                vendor: Some("Caliptra".into()),
-                model: Some("FMC".into()),
+                vendor: None,
+                model: None,
                 // This is from the SVN in the image (9)
                 svn: Some(0x109),
                 fwids: vec![DiceFwid {
@@ -458,8 +458,8 @@ fn smoke_test() {
     assert_eq!(
         rt_dice_tcb_info,
         Some(DiceTcbInfo {
-            vendor: Some("Caliptra".into()),
-            model: Some("RT".into()),
+            vendor: None,
+            model: None,
             svn: Some(0x100),
             fwids: vec![DiceFwid {
                 // RT
@@ -608,8 +608,8 @@ fn smoke_test() {
     assert_eq!(
         rt_dice_tcb_info2,
         Some(DiceTcbInfo {
-            vendor: Some("Caliptra".into()),
-            model: Some("RT".into()),
+            vendor: None,
+            model: None,
             svn: Some(0x100),
             fwids: vec![DiceFwid {
                 // FMC

diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/fmc_alias_cert_redacted.der b/test/tests/caliptra_integration_tests/smoke_testdata/fmc_alias_cert_redacted.der
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/fmc_alias_cert_redacted.txt b/test/tests/caliptra_integration_tests/smoke_testdata/fmc_alias_cert_redacted.txt
@@ -4,11 +4,11 @@ Certificate:
         Serial Number:
             44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44
         Signature Algorithm: ecdsa-with-SHA384
-        Issuer: CN=Caliptra 1.0 LDevID/serialNumber=21EEEF9A4C61D4B9E3D94BEA46F9A12AC6887CE2188559F40FF95777E8014889
+        Issuer: CN=Caliptra 1.x LDevID/serialNumber=21EEEF9A4C61D4B9E3D94BEA46F9A12AC6887CE2188559F40FF95777E8014889
         Validity
             Not Before: Jan  1 00:00:00 2023 GMT
             Not After : Dec 31 23:59:59 9999 GMT
-        Subject: CN=Caliptra 1.0 FMC Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
+        Subject: CN=Caliptra 1.x FMC Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
         Subject Public Key Info:
             Public Key Algorithm: id-ecPublicKey
                 Public-Key: (384 bit)
@@ -30,7 +30,7 @@ Certificate:
             2.23.133.5.4.4: 
                 0....................
             2.23.133.5.4.5: 
-                DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
+                DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
             X509v3 Subject Key Identifier: 
                 44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44
             X509v3 Authority Key Identifier: 

diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/idevid_csr.der b/test/tests/caliptra_integration_tests/smoke_testdata/idevid_csr.der
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/idevid_csr.txt b/test/tests/caliptra_integration_tests/smoke_testdata/idevid_csr.txt
@@ -1,7 +1,7 @@
 Certificate Request:
     Data:
         Version: 1 (0x0)
-        Subject: CN=Caliptra 1.0 IDevID/serialNumber=8E3C1A058F704A11821F7B48D340AEF99DDABADC1090D74D057FECCF73294ED6
+        Subject: CN=Caliptra 1.x IDevID/serialNumber=8E3C1A058F704A11821F7B48D340AEF99DDABADC1090D74D057FECCF73294ED6
         Subject Public Key Info:
             Public Key Algorithm: id-ecPublicKey
                 Public-Key: (384 bit)
@@ -25,9 +25,9 @@ Certificate Request:
                     0....................
     Signature Algorithm: ecdsa-with-SHA384
     Signature Value:
-        30:64:02:30:7c:74:fd:28:ce:0f:f9:e9:da:ef:90:84:a5:af:
-        c0:42:d1:e2:08:84:67:d6:6a:e8:dc:46:cc:02:1d:80:da:37:
-        50:91:ee:75:09:ed:15:55:0f:31:15:23:c9:bb:e6:e1:02:30:
-        24:fd:1b:5b:47:cc:14:4a:66:a5:bb:e7:04:74:f0:21:36:37:
-        f4:9e:5d:cd:a1:42:bf:f6:82:5c:a1:f4:51:43:e2:97:fc:95:
-        ce:56:b1:67:e1:bf:e1:26:3a:ce:a1:f3
+        30:65:02:31:00:ed:8e:44:4e:3c:7f:6f:96:4a:5d:cb:e1:ea:
+        08:a0:57:f5:d7:b5:6d:ce:72:9e:b8:8c:88:38:f6:50:35:90:
+        bd:6b:59:db:29:52:13:2e:fc:a8:b6:8d:8a:33:d3:2a:cf:02:
+        30:6d:40:6a:1f:7c:9e:74:8f:28:dc:14:73:e0:96:92:d8:74:
+        fa:30:58:04:54:84:77:e9:52:3a:0d:63:fa:f3:1a:68:c3:88:
+        07:50:a7:5d:6f:f7:a9:da:98:f7:8c:48:2a
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.der b/test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.der
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.txt b/test/tests/caliptra_integration_tests/smoke_testdata/ldevid_cert.txt
@@ -4,11 +4,11 @@ Certificate:
         Serial Number:
             25:ee:ef:9a:4c:61:d4:b9:e3:d9:4b:ea:46:f9:a1:2a:c6:88:7c:e2
         Signature Algorithm: ecdsa-with-SHA384
-        Issuer: CN=Caliptra 1.0 IDevID/serialNumber=8E3C1A058F704A11821F7B48D340AEF99DDABADC1090D74D057FECCF73294ED6
+        Issuer: CN=Caliptra 1.x IDevID/serialNumber=8E3C1A058F704A11821F7B48D340AEF99DDABADC1090D74D057FECCF73294ED6
         Validity
             Not Before: Jan  1 00:00:00 2023 GMT
             Not After : Dec 31 23:59:59 9999 GMT
-        Subject: CN=Caliptra 1.0 LDevID/serialNumber=21EEEF9A4C61D4B9E3D94BEA46F9A12AC6887CE2188559F40FF95777E8014889
+        Subject: CN=Caliptra 1.x LDevID/serialNumber=21EEEF9A4C61D4B9E3D94BEA46F9A12AC6887CE2188559F40FF95777E8014889
         Subject Public Key Info:
             Public Key Algorithm: id-ecPublicKey
                 Public-Key: (384 bit)
@@ -35,9 +35,9 @@ Certificate:
                 42:4F:3A:C7:45:DD:BD:50:15:05:7F:5B:F8:3E:9C:D6:48:10:B0:41
     Signature Algorithm: ecdsa-with-SHA384
     Signature Value:
-        30:66:02:31:00:9b:0e:19:91:81:f6:90:a7:43:34:60:d8:1d:
-        69:c4:a5:63:52:a3:c8:93:cf:4c:11:be:e1:a1:8d:47:a6:b5:
-        63:78:42:3f:8a:85:f2:34:b4:ab:5a:18:01:f6:e7:ff:92:02:
-        31:00:e1:21:cf:21:fe:44:09:81:95:01:fd:29:ad:f5:29:a9:
-        01:6a:2e:a3:15:bf:65:ab:2a:e5:82:7c:ef:f1:b8:59:bd:7e:
-        60:cf:15:c7:2a:64:ea:cf:2b:7b:9b:ff:42:d3
+        30:65:02:30:27:24:23:0f:77:0a:b4:a9:95:dc:a1:96:e0:cd:
+        5d:f9:29:08:eb:80:7d:74:55:05:7a:22:b9:62:08:96:a2:7a:
+        08:21:3d:8a:c6:1f:3c:71:e0:8d:48:83:ab:9c:64:1a:02:31:
+        00:ad:8a:98:ea:e7:33:13:bb:02:b6:12:fa:24:ef:ae:f4:5b:
+        73:57:97:37:82:56:a8:e9:c8:b6:87:d9:2d:7d:43:bc:be:cd:
+        82:d3:0f:85:5a:15:56:8e:a2:08:f9:ec:ce
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/rt_alias_cert_redacted.der b/test/tests/caliptra_integration_tests/smoke_testdata/rt_alias_cert_redacted.der
diff --git a/test/tests/caliptra_integration_tests/smoke_testdata/rt_alias_cert_redacted.txt b/test/tests/caliptra_integration_tests/smoke_testdata/rt_alias_cert_redacted.txt
@@ -4,11 +4,11 @@ Certificate:
         Serial Number:
             44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44
         Signature Algorithm: ecdsa-with-SHA384
-        Issuer: CN=Caliptra 1.0 FMC Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
+        Issuer: CN=Caliptra 1.x FMC Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
         Validity
             Not Before: Jan  1 00:00:00 2023 GMT
             Not After : Dec 31 23:59:59 9999 GMT
-        Subject: CN=Caliptra 1.0 Rt Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
+        Subject: CN=Caliptra 1.x Rt Alias/serialNumber=DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
         Subject Public Key Info:
             Public Key Algorithm: id-ecPublicKey
                 Public-Key: (384 bit)
@@ -30,7 +30,7 @@ Certificate:
             2.23.133.5.4.4: 
                 0....................
             2.23.133.5.4.1: 
-                DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
+                DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
             X509v3 Subject Key Identifier: 
                 44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44:44
             X509v3 Authority Key Identifier: 

diff --git a/x509/build/build.rs b/x509/build/build.rs
@@ -54,7 +54,7 @@ fn gen_init_devid_csr(out_dir: &str) {
         .add_basic_constraints_ext(true, 5)
         .add_key_usage_ext(usage)
         .add_ueid_ext(&[0xFF; 17]);
-    let template = bldr.tbs_template("Caliptra 1.0 IDevID");
+    let template = bldr.tbs_template("Caliptra 1.x IDevID");
     CodeGen::gen_code("InitDevIdCsrTbs", template, out_dir);
 }
 
@@ -67,7 +67,7 @@ fn gen_local_devid_cert(out_dir: &str) {
         .add_basic_constraints_ext(true, 4)
         .add_key_usage_ext(usage)
         .add_ueid_ext(&[0xFF; 17]);
-    let template = bldr.tbs_template("Caliptra 1.0 LDevID", "Caliptra 1.0 IDevID");
+    let template = bldr.tbs_template("Caliptra 1.x LDevID", "Caliptra 1.x IDevID");
     CodeGen::gen_code("LocalDevIdCertTbs", template, out_dir);
 }
 
@@ -98,7 +98,7 @@ fn gen_fmc_alias_cert(out_dir: &str) {
                 },
             }],
         );
-    let template = bldr.tbs_template("Caliptra 1.0 FMC Alias", "Caliptra 1.0 LDevID");
+    let template = bldr.tbs_template("Caliptra 1.x FMC Alias", "Caliptra 1.x LDevID");
     CodeGen::gen_code("FmcAliasCertTbs", template, out_dir);
 }
 
@@ -122,6 +122,6 @@ fn gen_rt_alias_cert(out_dir: &str) {
                 digest: &[0xCD; 48],
             },
         }]);
-    let template = bldr.tbs_template("Caliptra 1.0 Rt Alias", "Caliptra 1.0 FMC Alias");
+    let template = bldr.tbs_template("Caliptra 1.x Rt Alias", "Caliptra 1.x FMC Alias");
     CodeGen::gen_code("RtAliasCertTbs", template, out_dir);
 }
diff --git a/x509/build/cert.rs b/x509/build/cert.rs
@@ -90,9 +90,11 @@ impl<Algo: SigningAlgorithm> CertTemplateBuilder<Algo> {
         device_fwids: &[FwidParam],
         fmc_fwids: &[FwidParam],
     ) -> Self {
+        // This method of finding the offsets is fragile. Especially for the 1 byte values.
+        // These may need to be updated to stay unique when the cert template is updated.
         let flags: u32 = 0xC0C1C2C3;
         let svn: u8 = 0xC4;
-        let svn_fuses: u8 = 0xC5;
+        let svn_fuses: u8 = 0xC6;
 
         self.exts
             .push(x509::make_fmc_dice_tcb_info_ext(