From 17d7103bf1b832d5d8f4a4b8b4731e911cd09968 Mon Sep 17 00:00:00 2001
From: Chad Huff <chad@totalium.com>
Date: Tue, 5 Aug 2025 06:54:19 -0600
Subject: [PATCH] usnat backwards compatibility for compressed padding

---
 .../src/encoder/segment/UsNatCoreSegment.ts   | 10 ++++++++-
 .../cmpapi/test/encoder/section/UsNat.test.ts | 21 +++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/modules/cmpapi/src/encoder/segment/UsNatCoreSegment.ts b/modules/cmpapi/src/encoder/segment/UsNatCoreSegment.ts
index 9723510..461054d 100644
--- a/modules/cmpapi/src/encoder/segment/UsNatCoreSegment.ts
+++ b/modules/cmpapi/src/encoder/segment/UsNatCoreSegment.ts
@@ -138,7 +138,15 @@ export class UsNatCoreSegment extends AbstractLazilyEncodableSegment<EncodableBi
       // Necessary to maintain backwards compatibility when sensitive data processing changed from a
       // length of 12 to 16 and known child sensitive data consents changed from a length of 2 to 3 in the
       // DE, IA, NE, NH, NJ, TN release
-      if (bitString.length == 66) {
+      if (bitString.length == 60) {
+        bitString =
+          bitString.substring(0, 48) +
+          "00000000" +
+          bitString.substring(48, 52) +
+          "00" +
+          bitString.substring(52, 60) +
+          "00";
+      } else if (bitString.length == 66) {
         bitString =
           bitString.substring(0, 48) + "00000000" + bitString.substring(48, 52) + "00" + bitString.substring(52, 62);
       }
diff --git a/modules/cmpapi/test/encoder/section/UsNat.test.ts b/modules/cmpapi/test/encoder/section/UsNat.test.ts
index 4e369d2..d334358 100644
--- a/modules/cmpapi/test/encoder/section/UsNat.test.ts
+++ b/modules/cmpapi/test/encoder/section/UsNat.test.ts
@@ -144,6 +144,27 @@ describe("manifest.section.UsNat", (): void => {
     expect(false, usNat.getFieldValue(UsNatField.GPC_SEGMENT_INCLUDED));
   });
 
+  it("should decode BVQqAAAACg", (): void => {
+    let usNat = new UsNat("BVQqAAAACg");
+
+    expect(1, usNat.getFieldValue(UsNatField.SHARING_NOTICE));
+    expect(1, usNat.getFieldValue(UsNatField.SALE_OPT_OUT_NOTICE));
+    expect(1, usNat.getFieldValue(UsNatField.SHARING_OPT_OUT_NOTICE));
+    expect(1, usNat.getFieldValue(UsNatField.TARGETED_ADVERTISING_OPT_OUT_NOTICE));
+    expect(0, usNat.getFieldValue(UsNatField.SENSITIVE_DATA_PROCESSING_OPT_OUT_NOTICE));
+    expect(0, usNat.getFieldValue(UsNatField.SENSITIVE_DATA_LIMIT_USE_NOTICE));
+    expect(0, usNat.getFieldValue(UsNatField.SALE_OPT_OUT));
+    expect(2, usNat.getFieldValue(UsNatField.SHARING_OPT_OUT));
+    expect(2, usNat.getFieldValue(UsNatField.TARGETED_ADVERTISING_OPT_OUT));
+    expect([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], usNat.getFieldValue(UsNatField.SENSITIVE_DATA_PROCESSING));
+    expect([0, 0, 0], usNat.getFieldValue(UsNatField.KNOWN_CHILD_SENSITIVE_DATA_CONSENTS));
+    expect(2, usNat.getFieldValue(UsNatField.PERSONAL_DATA_CONSENTS));
+    expect(2, usNat.getFieldValue(UsNatField.MSPA_COVERED_TRANSACTION));
+    expect(0, usNat.getFieldValue(UsNatField.MSPA_OPT_OUT_OPTION_MODE));
+    expect(0, usNat.getFieldValue(UsNatField.MSPA_SERVICE_PROVIDER_MODE));
+    expect(false, usNat.getFieldValue(UsNatField.GPC_SEGMENT_INCLUDED));
+  });
+
   it("should throw Error on garbage", (): void => {
     expect(function () {
       new UsNat("z").getFieldValue(UsNatField.TARGETED_ADVERTISING_OPT_OUT_NOTICE);