diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index 5e33f6bd50..8d30bf0fb9 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -594,19 +594,23 @@
  * They are defined in _Standards for Efficient Cryptography_,
  * _SEC 2: Recommended Elliptic Curve Domain Parameters_.
  * https://www.secg.org/sec2-v2.pdf
+ *
+ * \note For secp224k1, the bit-size is 225 (size of a private value).
+ *
+ * \note Mbed TLS only supports secp192k1 and secp256k1.
  */
 #define PSA_ECC_FAMILY_SECP_K1           ((psa_ecc_family_t) 0x17)
 
 /** SEC random curves over prime fields.
  *
  * This family comprises the following curves:
- * secp192k1, secp224r1, secp256r1, secp384r1, secp521r1.
+ * secp192r1, secp224r1, secp256r1, secp384r1, secp521r1.
  * They are defined in _Standards for Efficient Cryptography_,
  * _SEC 2: Recommended Elliptic Curve Domain Parameters_.
  * https://www.secg.org/sec2-v2.pdf
  */
 #define PSA_ECC_FAMILY_SECP_R1           ((psa_ecc_family_t) 0x12)
-/* SECP160R2 (SEC2 v1, obsolete) */
+/* SECP160R2 (SEC2 v1, obsolete, not supported in Mbed TLS) */
 #define PSA_ECC_FAMILY_SECP_R2           ((psa_ecc_family_t) 0x1b)
 
 /** SEC Koblitz curves over binary fields.
@@ -616,6 +620,8 @@
  * They are defined in _Standards for Efficient Cryptography_,
  * _SEC 2: Recommended Elliptic Curve Domain Parameters_.
  * https://www.secg.org/sec2-v2.pdf
+ *
+ * \note Mbed TLS does not support any curve in this family.
  */
 #define PSA_ECC_FAMILY_SECT_K1           ((psa_ecc_family_t) 0x27)
 
@@ -626,6 +632,8 @@
  * They are defined in _Standards for Efficient Cryptography_,
  * _SEC 2: Recommended Elliptic Curve Domain Parameters_.
  * https://www.secg.org/sec2-v2.pdf
+ *
+ * \note Mbed TLS does not support any curve in this family.
  */
 #define PSA_ECC_FAMILY_SECT_R1           ((psa_ecc_family_t) 0x22)
 
@@ -636,6 +644,8 @@
  * It is defined in _Standards for Efficient Cryptography_,
  * _SEC 2: Recommended Elliptic Curve Domain Parameters_.
  * https://www.secg.org/sec2-v2.pdf
+ *
+ * \note Mbed TLS does not support any curve in this family.
  */
 #define PSA_ECC_FAMILY_SECT_R2           ((psa_ecc_family_t) 0x2b)
 
@@ -645,6 +655,9 @@
  * brainpoolP160r1, brainpoolP192r1, brainpoolP224r1, brainpoolP256r1,
  * brainpoolP320r1, brainpoolP384r1, brainpoolP512r1.
  * It is defined in RFC 5639.
+ *
+ * \note Mbed TLS only supports the 256-bit, 384-bit and 512-bit curves
+ *       in this family.
  */
 #define PSA_ECC_FAMILY_BRAINPOOL_P_R1    ((psa_ecc_family_t) 0x30)
 
@@ -673,6 +686,8 @@
  * - 448-bit: Edwards448, the twisted Edwards curve birationally equivalent
  *   to Curve448.
  *   Hamburg, _Ed448-Goldilocks, a new elliptic curve_, NIST ECC Workshop, 2015.
+ *
+ * \note Mbed TLS does not support Edwards curves yet.
  */
 #define PSA_ECC_FAMILY_TWISTED_EDWARDS   ((psa_ecc_family_t) 0x42)
 
diff --git a/scripts/mbedtls_dev/asymmetric_key_data.py b/scripts/mbedtls_dev/asymmetric_key_data.py
index ef3e3a05e8..8ca6758782 100644
--- a/scripts/mbedtls_dev/asymmetric_key_data.py
+++ b/scripts/mbedtls_dev/asymmetric_key_data.py
@@ -41,13 +41,15 @@ ASYMMETRIC_KEY_DATA = construct_asymmetric_key_data({
     'ECC(PSA_ECC_FAMILY_SECP_K1)': {
         192: ("297ac1722ccac7589ecb240dc719842538ca974beb79f228",
               "0426b7bb38da649ac2138fc050c6548b32553dab68afebc36105d325b75538c12323cb0764789ecb992671beb2b6bef2f5"),
-        224: ("0024122bf020fa113f6c0ac978dfbd41f749257a9468febdbe0dc9f7e8",
+        225: ("0024122bf020fa113f6c0ac978dfbd41f749257a9468febdbe0dc9f7e8",
               "042cc7335f4b76042bed44ef45959a62aa215f7a5ff0c8111b8c44ed654ee71c1918326ad485b2d599fe2a6eab096ee26d977334d2bac6d61d"),
         256: ("7fa06fa02d0e911b9a47fdc17d2d962ca01e2f31d60c6212d0ed7e3bba23a7b9",
               "045c39154579efd667adc73a81015a797d2c8682cdfbd3c3553c4a185d481cdc50e42a0e1cbc3ca29a32a645e927f54beaed14c9dbbf8279d725f5495ca924b24d"),
     },
     'ECC(PSA_ECC_FAMILY_SECP_R1)': {
-        225: ("872f203b3ad35b7f2ecc803c3a0e1e0b1ed61cc1afe71b189cd4c995",
+        192: ("d83b57a59c51358d9c8bbb898aff507f44dd14cf16917190",
+              "04e35fcbee11cec3154f80a1a61df7d7612de4f2fd70c5608d0ee3a4a1a5719471adb33966dd9b035fdb774feeba94b04c"),
+        224: ("872f203b3ad35b7f2ecc803c3a0e1e0b1ed61cc1afe71b189cd4c995",
               "046f00eadaa949fee3e9e1c7fa1247eecec86a0dce46418b9bd3117b981d4bd0ae7a990de912f9d060d6cb531a42d22e394ac29e81804bf160"),
         256: ("49c9a8c18c4b885638c431cf1df1c994131609b580d4fd43a0cab17db2f13eee",
               "047772656f814b399279d5e1f1781fac6f099a3c5ca1b0e35351834b08b65e0b572590cdaf8f769361bcf34acfc11e5e074e8426bdde04be6e653945449617de45"),
diff --git a/scripts/mbedtls_dev/crypto_knowledge.py b/scripts/mbedtls_dev/crypto_knowledge.py
index 285d6c638f..ebfd55cdb3 100644
--- a/scripts/mbedtls_dev/crypto_knowledge.py
+++ b/scripts/mbedtls_dev/crypto_knowledge.py
@@ -131,8 +131,8 @@ class KeyType:
         'PSA_DH_FAMILY_RFC7919': (2048, 3072, 4096, 6144, 8192),
     } # type: Dict[str, Tuple[int, ...]]
     ECC_KEY_SIZES = {
-        'PSA_ECC_FAMILY_SECP_K1': (192, 224, 256),
-        'PSA_ECC_FAMILY_SECP_R1': (225, 256, 384, 521),
+        'PSA_ECC_FAMILY_SECP_K1': (192, 225, 256),
+        'PSA_ECC_FAMILY_SECP_R1': (224, 256, 384, 521),
         'PSA_ECC_FAMILY_SECP_R2': (160,),
         'PSA_ECC_FAMILY_SECT_K1': (163, 233, 239, 283, 409, 571),
         'PSA_ECC_FAMILY_SECT_R1': (163, 233, 283, 409, 571),