From 1e8f77d47c903bdf4425d947be76b6354ef2cd5e Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Wed, 7 Jan 2026 15:59:20 +0100
Subject: [PATCH] Add elliptic curve FRP256v1

Sample key from
https://www.ietf.org/archive/id/draft-lspm-cose-c509-test-vectors-00.html#name-weierstrass-ec-public-key-with-f

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
---
 scripts/mbedtls_framework/asymmetric_key_data.py | 7 +++++++
 scripts/mbedtls_framework/crypto_knowledge.py    | 1 +
 2 files changed, 8 insertions(+)

diff --git a/scripts/mbedtls_framework/asymmetric_key_data.py b/scripts/mbedtls_framework/asymmetric_key_data.py
index 653012075..87a8102f5 100644
--- a/scripts/mbedtls_framework/asymmetric_key_data.py
+++ b/scripts/mbedtls_framework/asymmetric_key_data.py
@@ -122,6 +122,13 @@ ASYMMETRIC_KEY_DATA = construct_asymmetric_key_data({
               "0438b7ec92b61c5c6c7fbc28a4ec759d48fcd4e2e374defd5c4968a54dbef7510e517886fbfc38ea39aa529359d70a7156c35d3cbac7ce776bdb251dd64bce71234424ee7049eed072f0dbc4d79996e175d557e263763ae97095c081e73e7db2e38adc3d4c9a0487b1ede876dc1fca61c902e9a1d8722b8612928f18a24845591a"),
     },
 
+    # https://www.ietf.org/archive/id/draft-lspm-cose-c509-test-vectors-00.html#name-weierstrass-ec-public-key-with-f
+    'ECC(PSA_ECC_FAMILY_FRP)': {
+        256: ("88e244ef9d8a617b35199d3ff844d6368067f0bed914ef608dc77fc6d951fe21",
+              "04378d2d28a1f6547124f2db6a42f63915bfa2f6537ae20cf0417d675fbe6603da80a4cf3f1e43633343ab3be80150ec04e9649dd62705bc055bdcda791eb25062"),
+    },
+
+    # Randomly generated with OpenSSL
     'ECC(PSA_ECC_FAMILY_MONTGOMERY)': {
         255: ("70076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c6a",
               "8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a"),
diff --git a/scripts/mbedtls_framework/crypto_knowledge.py b/scripts/mbedtls_framework/crypto_knowledge.py
index ea965621d..f3dfb1748 100644
--- a/scripts/mbedtls_framework/crypto_knowledge.py
+++ b/scripts/mbedtls_framework/crypto_knowledge.py
@@ -138,6 +138,7 @@ class KeyType:
         'PSA_ECC_FAMILY_SECT_R1': (163, 233, 283, 409, 571),
         'PSA_ECC_FAMILY_SECT_R2': (163,),
         'PSA_ECC_FAMILY_BRAINPOOL_P_R1': (160, 192, 224, 256, 320, 384, 512),
+        'PSA_ECC_FAMILY_FRP': (256,),
         'PSA_ECC_FAMILY_MONTGOMERY': (255, 448),
         'PSA_ECC_FAMILY_TWISTED_EDWARDS': (255, 448),
     } # type: Dict[str, Tuple[int, ...]]