diff --git a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
index 829780d..f154d03 100644
--- a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
+++ b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
@@ -169,6 +169,7 @@
             provisionable_ = IRemotelyProvisionedComponent::fromBinder(binder);
         }
         ASSERT_NE(provisionable_, nullptr);
+        ASSERT_TRUE(provisionable_->getHardwareInfo(&rpcHardwareInfo).isOk());
     }
 
     static vector<string> build_params() {
@@ -178,6 +179,7 @@
 
   protected:
     std::shared_ptr<IRemotelyProvisionedComponent> provisionable_;
+    RpcHardwareInfo rpcHardwareInfo;
 };
 
 /**
@@ -341,11 +343,10 @@
 class CertificateRequestTest : public VtsRemotelyProvisionedComponentTests {
   protected:
     CertificateRequestTest() : eekId_(string_to_bytevec("eekid")), challenge_(randomBytes(32)) {
-        generateTestEekChain(3);
     }
 
     void generateTestEekChain(size_t eekLength) {
-        auto chain = generateEekChain(eekLength, eekId_);
+        auto chain = generateEekChain(rpcHardwareInfo.supportedEekCurve, eekLength, eekId_);
         EXPECT_TRUE(chain) << chain.message();
         if (chain) testEekChain_ = chain.moveValue();
         testEekLength_ = eekLength;
@@ -366,6 +367,17 @@
         }
     }
 
+    ErrMsgOr<bytevec> getSessionKey(ErrMsgOr<std::pair<bytevec, bytevec>>& senderPubkey) {
+        if (rpcHardwareInfo.supportedEekCurve == RpcHardwareInfo::CURVE_25519 ||
+            rpcHardwareInfo.supportedEekCurve == RpcHardwareInfo::CURVE_NONE) {
+            return x25519_HKDF_DeriveKey(testEekChain_.last_pubkey, testEekChain_.last_privkey,
+                                         senderPubkey->first, false /* senderIsA */);
+        } else {
+            return ECDH_HKDF_DeriveKey(testEekChain_.last_pubkey, testEekChain_.last_privkey,
+                                       senderPubkey->first, false /* senderIsA */);
+        }
+    }
+
     void checkProtectedData(const DeviceInfo& deviceInfo, const cppbor::Array& keysToSign,
                             const bytevec& keysToSignMac, const ProtectedData& protectedData,
                             std::vector<BccEntryData>* bccOutput = nullptr) {
@@ -378,9 +390,7 @@
         ASSERT_TRUE(senderPubkey) << senderPubkey.message();
         EXPECT_EQ(senderPubkey->second, eekId_);
 
-        auto sessionKey =
-                x25519_HKDF_DeriveKey(testEekChain_.last_pubkey, testEekChain_.last_privkey,
-                                      senderPubkey->first, false /* senderIsA */);
+        auto sessionKey = getSessionKey(senderPubkey);
         ASSERT_TRUE(sessionKey) << sessionKey.message();
 
         auto protectedDataPayload =
@@ -390,7 +400,8 @@
         auto [parsedPayload, __, payloadErrMsg] = cppbor::parse(*protectedDataPayload);
         ASSERT_TRUE(parsedPayload) << "Failed to parse payload: " << payloadErrMsg;
         ASSERT_TRUE(parsedPayload->asArray());
-        EXPECT_EQ(parsedPayload->asArray()->size(), 2U);
+        // Strongbox may contain additional certificate chain.
+        EXPECT_LE(parsedPayload->asArray()->size(), 3U);
 
         auto& signedMac = parsedPayload->asArray()->get(0);
         auto& bcc = parsedPayload->asArray()->get(1);
@@ -474,6 +485,7 @@
     bytevec keysToSignMac;
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
+    generateTestEekChain(3);
     auto status = provisionable_->generateCertificateRequest(
             testMode, {} /* keysToSign */, testEekChain_.chain, challenge_, &deviceInfo,
             &protectedData, &keysToSignMac);
@@ -513,8 +525,8 @@
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
     auto status = provisionable_->generateCertificateRequest(
-            testMode, {} /* keysToSign */, getProdEekChain(), challenge_, &deviceInfo,
-            &protectedData, &keysToSignMac);
+            testMode, {} /* keysToSign */, getProdEekChain(rpcHardwareInfo.supportedEekCurve),
+            challenge_, &deviceInfo, &protectedData, &keysToSignMac);
     EXPECT_TRUE(status.isOk());
 }
 
@@ -554,8 +566,8 @@
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
     auto status = provisionable_->generateCertificateRequest(
-            testMode, keysToSign_, getProdEekChain(), challenge_, &deviceInfo, &protectedData,
-            &keysToSignMac);
+            testMode, keysToSign_, getProdEekChain(rpcHardwareInfo.supportedEekCurve), challenge_,
+            &deviceInfo, &protectedData, &keysToSignMac);
     EXPECT_TRUE(status.isOk());
 }
 
@@ -570,6 +582,7 @@
     bytevec keysToSignMac;
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
+    generateTestEekChain(3);
     auto status = provisionable_->generateCertificateRequest(
             testMode, {keyWithCorruptMac}, testEekChain_.chain, challenge_, &deviceInfo,
             &protectedData, &keysToSignMac);
@@ -589,8 +602,8 @@
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
     auto status = provisionable_->generateCertificateRequest(
-            testMode, {keyWithCorruptMac}, getProdEekChain(), challenge_, &deviceInfo,
-            &protectedData, &keysToSignMac);
+            testMode, {keyWithCorruptMac}, getProdEekChain(rpcHardwareInfo.supportedEekCurve),
+            challenge_, &deviceInfo, &protectedData, &keysToSignMac);
     ASSERT_FALSE(status.isOk()) << status.getMessage();
     EXPECT_EQ(status.getServiceSpecificError(), BnRemotelyProvisionedComponent::STATUS_INVALID_MAC);
 }
@@ -603,7 +616,7 @@
     bool testMode = false;
     generateKeys(testMode, 4 /* numKeys */);
 
-    auto prodEekChain = getProdEekChain();
+    auto prodEekChain = getProdEekChain(rpcHardwareInfo.supportedEekCurve);
     auto [parsedChain, _, parseErr] = cppbor::parse(prodEekChain);
     ASSERT_NE(parsedChain, nullptr) << parseErr;
     ASSERT_NE(parsedChain->asArray(), nullptr);
@@ -634,7 +647,7 @@
 
     // Build an EEK chain that omits the first self-signed cert.
     auto truncatedChain = cppbor::Array();
-    auto [chain, _, parseErr] = cppbor::parse(getProdEekChain());
+    auto [chain, _, parseErr] = cppbor::parse(getProdEekChain(rpcHardwareInfo.supportedEekCurve));
     ASSERT_TRUE(chain);
     auto eekChain = chain->asArray();
     ASSERT_NE(eekChain, nullptr);
@@ -662,6 +675,7 @@
     bytevec keysToSignMac;
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
+    generateTestEekChain(3);
     auto status = provisionable_->generateCertificateRequest(
             true /* testMode */, keysToSign_, testEekChain_.chain, challenge_, &deviceInfo,
             &protectedData, &keysToSignMac);
@@ -680,6 +694,7 @@
     bytevec keysToSignMac;
     DeviceInfo deviceInfo;
     ProtectedData protectedData;
+    generateTestEekChain(3);
     auto status = provisionable_->generateCertificateRequest(
             false /* testMode */, keysToSign_, testEekChain_.chain, challenge_, &deviceInfo,
             &protectedData, &keysToSignMac);