diff --git a/library/bignum_mod_raw.c b/library/bignum_mod_raw.c
index 7919211..bf72c18 100644
--- a/library/bignum_mod_raw.c
+++ b/library/bignum_mod_raw.c
@@ -114,8 +114,6 @@
     (void) mbedtls_mpi_core_add_if(X, N->p, N->limbs, (unsigned) c);
 }
 
-#if defined(MBEDTLS_TEST_HOOKS)
-
 MBEDTLS_STATIC_TESTABLE
 void mbedtls_mpi_mod_raw_fix_quasi_reduction(mbedtls_mpi_uint *X,
                                              const mbedtls_mpi_mod_modulus *N)
@@ -125,7 +123,6 @@
     (void) mbedtls_mpi_core_add_if(X, N->p, N->limbs, (unsigned) c);
 }
 
-#endif /* MBEDTLS_TEST_HOOKS */
 
 void mbedtls_mpi_mod_raw_mul(mbedtls_mpi_uint *X,
                              const mbedtls_mpi_uint *A,
@@ -133,8 +130,31 @@
                              const mbedtls_mpi_mod_modulus *N,
                              mbedtls_mpi_uint *T)
 {
-    mbedtls_mpi_core_montmul(X, A, B, N->limbs, N->p, N->limbs,
-                             N->rep.mont.mm, T);
+    /* Standard (A * B) multiplication stored into pre-allocated T
+     * buffer of fixed limb size of (2N + 1).
+     *
+     * The space may not not fully filled by when
+     * MBEDTLS_MPI_MOD_REP_OPT_RED is used. */
+    const size_t T_limbs = BITS_TO_LIMBS(N->bits) * 2;
+    switch (N->int_rep) {
+        case MBEDTLS_MPI_MOD_REP_MONTGOMERY:
+            mbedtls_mpi_core_montmul(X, A, B, N->limbs, N->p, N->limbs,
+                                     N->rep.mont.mm, T);
+            break;
+        case MBEDTLS_MPI_MOD_REP_OPT_RED:
+            mbedtls_mpi_core_mul(T, A, N->limbs, B, N->limbs);
+
+            /* Optimised Reduction */
+            (*N->rep.ored.modp)(T, T_limbs);
+
+            /* Convert back to canonical representation */
+            mbedtls_mpi_mod_raw_fix_quasi_reduction(T, N);
+            memcpy(X, T, N->limbs * sizeof(mbedtls_mpi_uint));
+            break;
+        default:
+            break;
+    }
+
 }
 
 size_t mbedtls_mpi_mod_raw_inv_prime_working_limbs(size_t AN_limbs)
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index 4a8f891..a4fa663 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -4922,7 +4922,7 @@
 static int ecp_mod_p192(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * ((192 + biL - 1) / biL);
+    size_t expected_width = BITS_TO_LIMBS(192) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p192_raw(N->p, expected_width);
 
@@ -4936,7 +4936,7 @@
     mbedtls_mpi_uint c = 0, last_carry[WIDTH] = { 0 };
     mbedtls_mpi_uint *p, *end;
 
-    if (Nn != 2*((192 + biL - 1)/biL)) {
+    if (Nn != BITS_TO_LIMBS(192) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5082,7 +5082,7 @@
 static int ecp_mod_p224(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width =  2 * 224 / biL;
+    size_t expected_width = BITS_TO_LIMBS(224) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p224_raw(N->p, expected_width);
 cleanup:
@@ -5092,7 +5092,7 @@
 MBEDTLS_STATIC_TESTABLE
 int mbedtls_ecp_mod_p224_raw(mbedtls_mpi_uint *X, size_t X_limbs)
 {
-    if (X_limbs != 2 * 224 / biL) {
+    if (X_limbs != BITS_TO_LIMBS(224) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5135,7 +5135,7 @@
 static int ecp_mod_p256(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * 256 / biL;
+    size_t expected_width = BITS_TO_LIMBS(256) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p256_raw(N->p, expected_width);
 cleanup:
@@ -5145,7 +5145,7 @@
 MBEDTLS_STATIC_TESTABLE
 int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs)
 {
-    if (X_limbs != 2 * 256 / biL) {
+    if (X_limbs != BITS_TO_LIMBS(256) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5215,7 +5215,7 @@
 static int ecp_mod_p384(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * ((384 + biL - 1) / biL);
+    size_t expected_width = BITS_TO_LIMBS(384) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p384_raw(N->p, expected_width);
 cleanup:
@@ -5225,7 +5225,7 @@
 MBEDTLS_STATIC_TESTABLE
 int mbedtls_ecp_mod_p384_raw(mbedtls_mpi_uint *X, size_t X_limbs)
 {
-    if (X_limbs != 2*((384 + biL - 1)/biL)) {
+    if (X_limbs != BITS_TO_LIMBS(384) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5337,7 +5337,7 @@
 static int ecp_mod_p521(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * P521_WIDTH;
+    size_t expected_width = BITS_TO_LIMBS(521) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p521_raw(N->p, expected_width);
 cleanup:
@@ -5349,7 +5349,7 @@
 {
     mbedtls_mpi_uint carry = 0;
 
-    if (X_limbs != 2 * P521_WIDTH || X[2 * P521_WIDTH - 1] != 0) {
+    if (X_limbs != BITS_TO_LIMBS(521) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5423,7 +5423,7 @@
 static int ecp_mod_p255(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * P255_WIDTH;
+    size_t expected_width = BITS_TO_LIMBS(255) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p255_raw(N->p, expected_width);
 cleanup:
@@ -5434,7 +5434,7 @@
 int mbedtls_ecp_mod_p255_raw(mbedtls_mpi_uint *X, size_t X_Limbs)
 {
 
-    if (X_Limbs != 2 * P255_WIDTH) {
+    if (X_Limbs != BITS_TO_LIMBS(255) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5492,7 +5492,7 @@
 static int ecp_mod_p448(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * ((448 + biL - 1) / biL);
+    size_t expected_width = BITS_TO_LIMBS(448) * 2;
 
     /* This is required as some tests and use cases do not pass in a Bignum of
      * the correct size, and expect the growth to be done automatically, which
@@ -5522,7 +5522,7 @@
     size_t round;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if (X_limbs <= P448_WIDTH) {
+    if (X_limbs != BITS_TO_LIMBS(448) * 2) {
         return 0;
     }
 
@@ -5734,7 +5734,7 @@
 static int ecp_mod_p192k1(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * ((192 + biL - 1) / biL);
+    size_t expected_width = BITS_TO_LIMBS(192) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p192k1_raw(N->p, expected_width);
 
@@ -5750,7 +5750,7 @@
                                   0x01, 0x00, 0x00, 0x00)
     };
 
-    if (X_limbs != 2 * ((192 + biL - 1) / biL)) {
+    if (X_limbs != BITS_TO_LIMBS(192) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5768,7 +5768,7 @@
 static int ecp_mod_p224k1(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width =  2 * 224 / biL;
+    size_t expected_width = BITS_TO_LIMBS(224) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p224k1_raw(N->p, expected_width);
 
@@ -5784,7 +5784,7 @@
                                   0x01, 0x00, 0x00, 0x00)
     };
 
-    if (X_limbs != 2 * 224 / biL) {
+    if (X_limbs !=  BITS_TO_LIMBS(224) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5802,7 +5802,7 @@
 static int ecp_mod_p256k1(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t expected_width = 2 * ((256 + biL - 1) / biL);
+    size_t expected_width = BITS_TO_LIMBS(256) * 2;
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
     ret = mbedtls_ecp_mod_p256k1_raw(N->p, expected_width);
 
@@ -5818,7 +5818,7 @@
                                   0x01, 0x00, 0x00, 0x00)
     };
 
-    if (X_limbs != 2 * ((256 + biL - 1) / biL)) {
+    if (X_limbs != BITS_TO_LIMBS(256) * 2) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }
 
@@ -5970,7 +5970,7 @@
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP192K1:
             if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
-                modp = &mbedtls_ecp_mod_p192_raw;
+                modp = &mbedtls_ecp_mod_p192k1_raw;
                 p = (mbedtls_mpi_uint *) secp192k1_p;
                 p_limbs = CHARS_TO_LIMBS(sizeof(secp192k1_p));
             } else {
@@ -5983,7 +5983,7 @@
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP224K1:
             if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
-                modp = &mbedtls_ecp_mod_p224_raw;
+                modp = &mbedtls_ecp_mod_p224k1_raw;
                 p = (mbedtls_mpi_uint *) secp224k1_p;
                 p_limbs = CHARS_TO_LIMBS(sizeof(secp224k1_p));
             } else {
@@ -5996,7 +5996,7 @@
 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP256K1:
             if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
-                modp = &mbedtls_ecp_mod_p256_raw;
+                modp = &mbedtls_ecp_mod_p256k1_raw;
                 p = (mbedtls_mpi_uint *) secp256k1_p;
                 p_limbs = CHARS_TO_LIMBS(sizeof(secp256k1_p));
             } else {
diff --git a/scripts/mbedtls_dev/bignum_common.py b/scripts/mbedtls_dev/bignum_common.py
index 51b25a3..3bef16d 100644
--- a/scripts/mbedtls_dev/bignum_common.py
+++ b/scripts/mbedtls_dev/bignum_common.py
@@ -19,6 +19,7 @@
 from typing import Iterator, List, Tuple, TypeVar, Any
 from copy import deepcopy
 from itertools import chain
+from math import ceil
 
 from . import test_case
 from . import test_data_generation
@@ -76,9 +77,14 @@
     """Return all pair combinations from input values."""
     return [(x, y) for x in values for y in values]
 
+def bits_to_limbs(bits: int, bits_in_limb: int) -> int:
+    """ Return the appropriate ammount of limbs needed to store
+        a number contained in input bits"""
+    return ceil(bits / bits_in_limb)
+
 def hex_digits_for_limb(limbs: int, bits_in_limb: int) -> int:
-    """ Retrun the hex digits need for a number of limbs. """
-    return 2 * (limbs * bits_in_limb // 8)
+    """ Return the hex digits need for a number of limbs. """
+    return 2 * ((limbs * bits_in_limb) // 8)
 
 def hex_digits_max_int(val: str, bits_in_limb: int) -> int:
     """ Return the first number exceeding maximum  the limb space
diff --git a/scripts/mbedtls_dev/ecp.py b/scripts/mbedtls_dev/ecp.py
index 8a3ab28..410c77e 100644
--- a/scripts/mbedtls_dev/ecp.py
+++ b/scripts/mbedtls_dev/ecp.py
@@ -165,7 +165,8 @@
 
     @property
     def arg_a(self) -> str:
-        hex_digits = bignum_common.hex_digits_for_limb(448 // self.bits_in_limb, self.bits_in_limb)
+        limbs = 2 * bignum_common.bits_to_limbs(224, self.bits_in_limb)
+        hex_digits = bignum_common.hex_digits_for_limb(limbs, self.bits_in_limb)
         return super().format_arg('{:x}'.format(self.int_a)).zfill(hex_digits)
 
     def result(self) -> List[str]:
@@ -573,7 +574,7 @@
     symbol = "-"
     test_function = "ecp_mod_p_generic_raw"
     test_name = "ecp_mod_p224k1_raw"
-    input_style = "fixed"
+    input_style = "arch_split"
     arity = 1
     dependencies = ["MBEDTLS_ECP_DP_SECP224K1_ENABLED"]
 
@@ -624,7 +625,8 @@
 
     @property
     def arg_a(self) -> str:
-        hex_digits = bignum_common.hex_digits_for_limb(448 // self.bits_in_limb, self.bits_in_limb)
+        limbs = 2 * bignum_common.bits_to_limbs(224, self.bits_in_limb)
+        hex_digits = bignum_common.hex_digits_for_limb(limbs, self.bits_in_limb)
         return super().format_arg('{:x}'.format(self.int_a)).zfill(hex_digits)
 
     def result(self) -> List[str]:
diff --git a/tests/suites/test_suite_ecp.data b/tests/suites/test_suite_ecp.data
index 030cd46..1560c54 100644
--- a/tests/suites/test_suite_ecp.data
+++ b/tests/suites/test_suite_ecp.data
@@ -1101,6 +1101,10 @@
 depends_on:MBEDTLS_ECP_DP_BP256R1_ENABLED
 ecp_mod_mul_inv:"8d9454c7494b6e08d068391c811cb23cbe9318246a6c021b0018745eb6918751":MBEDTLS_ECP_DP_BP256R1:MBEDTLS_ECP_MOD_COORDINATE
 
+ecp_mul_inv #18.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_BP256R1)
+depends_on:MBEDTLS_ECP_DP_BP256R1_ENABLED
+ecp_mod_mul_inv:"a9fb57dba1eea9bc3e660a909d838d726e3bf623d52620282013481d1f6e5376":MBEDTLS_ECP_DP_BP256R1:MBEDTLS_ECP_MOD_COORDINATE
+
 ecp_mul_inv #19 MBEDTLS_ECP_MOD_SCALAR(MBEDTLS_ECP_DP_BP256R1)
 depends_on:MBEDTLS_ECP_DP_BP256R1_ENABLED
 ecp_mod_mul_inv:"3aff86b1ee706d38e4995b76f6433d9173c5d3ec19b43ff0a3d53ac20965c911":MBEDTLS_ECP_DP_BP256R1:MBEDTLS_ECP_MOD_SCALAR
@@ -1125,6 +1129,10 @@
 depends_on:MBEDTLS_ECP_DP_BP384R1_ENABLED
 ecp_mod_mul_inv:"80acca473c3fcee61d13a0a766ed0dcd5f50277f576ff6f3461664d436e2054ad7ecc8b7c0a9424fbda1d431c540c05a":MBEDTLS_ECP_DP_BP384R1:MBEDTLS_ECP_MOD_COORDINATE
 
+ecp_mul_inv #24.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_BP384R1)
+depends_on:MBEDTLS_ECP_DP_BP384R1_ENABLED
+ecp_mod_mul_inv:"8cb91e82a3386d280f5d6f7e50e641df152f7109ed5456b412b1da197fb71123acd3a729901d1a71874700133107ec52":MBEDTLS_ECP_DP_BP384R1:MBEDTLS_ECP_MOD_COORDINATE
+
 ecp_mul_inv #25 MBEDTLS_ECP_MOD_SCALAR(MBEDTLS_ECP_DP_BP384R1)
 depends_on:MBEDTLS_ECP_DP_BP384R1_ENABLED
 ecp_mod_mul_inv:"371851bd69a5a1734b195c6ad6b041f51d94718cb437ab4a0a14ee5fa5fccd29328f3e77bfa2e4c58195ccb55cdc6a4":MBEDTLS_ECP_DP_BP384R1:MBEDTLS_ECP_MOD_SCALAR
@@ -1149,6 +1157,10 @@
 depends_on:MBEDTLS_ECP_DP_BP512R1_ENABLED
 ecp_mod_mul_inv:"8be202ecb80ae3f6fe07a17b03c14997668b37d029d38943245c8a6cd1cbce3d57cfc673886a22db7ab8686570881a5dc1d9855aa6618c52df55a04510e00bba":MBEDTLS_ECP_DP_BP512R1:MBEDTLS_ECP_MOD_COORDINATE
 
+ecp_mul_inv #30.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_BP512R1)
+depends_on:MBEDTLS_ECP_DP_BP512R1_ENABLED
+ecp_mod_mul_inv:"aadd9db8dbe9c48b3fd4e6ae33c9fc07cb308db3b3c9d20ed6639cca703308717d4d9b009bc66842aecda12ae6a380e62881ff2f2d82c68528aa6056583a48f2":MBEDTLS_ECP_DP_BP512R1:MBEDTLS_ECP_MOD_COORDINATE
+
 ecp_mul_inv #31 MBEDTLS_ECP_MOD_SCALAR(MBEDTLS_ECP_DP_BP512R1)
 depends_on:MBEDTLS_ECP_DP_BP512R1_ENABLED
 ecp_mod_mul_inv:"572a5522bc45566df4c7575b91fdbc74975fd59380339b5aa23cbce2204744793ca3255705f5d9ba48335f36baf462010680f1e35cca26468d7d8f4223988189":MBEDTLS_ECP_DP_BP512R1:MBEDTLS_ECP_MOD_SCALAR
@@ -1235,6 +1247,177 @@
 depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
 ecp_mod_mul_inv:"0000000000000003fffffffffffffffffffffffffffffffffffffffffffffffffffffff01243a939d867d7e0a75a8568d4d66de88f3ecc1ad37f91a8f9d7d70":MBEDTLS_ECP_DP_CURVE448:MBEDTLS_ECP_MOD_SCALAR
 
+ecp_mul_inv #49 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192R1)
+depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
+ecp_mod_mul_inv:"0000000000000000000000000000152d02c7e14af67fe0bf":MBEDTLS_ECP_DP_SECP192R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #50 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192R1)
+depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
+ecp_mod_mul_inv:"4acca2d7100bad687080217babfb490d23dd6460a0007f24":MBEDTLS_ECP_DP_SECP192R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #51 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192R1)
+depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
+ecp_mod_mul_inv:"c4fd9a06df9b4efa94531578af8b5886ec0ada82884199f7":MBEDTLS_ECP_DP_SECP192R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #51.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192R1)
+depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
+ecp_mod_mul_inv:"fffffffffffffffffffffffffffffffefffffffffffffffe":MBEDTLS_ECP_DP_SECP192R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #52 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224R1)
+depends_on:MBEDTLS_ECP_DP_SECP224R1_ENABLED
+ecp_mod_mul_inv:"0f9c4728bef9fba3e7d856a8e2ff62f20c2a57bf64f6d707f0829a8ff":MBEDTLS_ECP_DP_SECP224R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #53 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224R1)
+depends_on:MBEDTLS_ECP_DP_SECP224R1_ENABLED
+ecp_mod_mul_inv:"0cee8071ade3e016fd47627782f6543814dd6ab7e6f432679ddacf9ed":MBEDTLS_ECP_DP_SECP224R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #54 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224R1)
+depends_on:MBEDTLS_ECP_DP_SECP224R1_ENABLED
+ecp_mod_mul_inv:"00326258467dcbf4d1ab1665a4c5036cb35f4c9231199b58166b3966c6":MBEDTLS_ECP_DP_SECP224R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #54.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224R1)
+depends_on:MBEDTLS_ECP_DP_SECP224R1_ENABLED
+ecp_mod_mul_inv:"00ffffffffffffffffffffffffffffffff000000000000000000000000":MBEDTLS_ECP_DP_SECP224R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #55 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256R1)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_mod_mul_inv:"c36eadeab80f149cd51a1ed6311270ae2e4acc6734e787135f499c3a97f1edc3":MBEDTLS_ECP_DP_SECP256R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #56 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256R1)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_mod_mul_inv:"e384042f3130be8a796b221724cf1127a44290804cfbeb7fb6f57142a2a5cddd":MBEDTLS_ECP_DP_SECP256R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #57 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256R1)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_mod_mul_inv:"f1d356376f03b5dbf0fd08bde5c4293115f7c7911f7a3ec3f90557602eb20147":MBEDTLS_ECP_DP_SECP256R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #57.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256R1)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_mod_mul_inv:"ffffffff00000001000000000000000000000000fffffffffffffffffffffffe":MBEDTLS_ECP_DP_SECP256R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #58 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP384R1)
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_mod_mul_inv:"a3137cd9b0c9e75a871f92e3ab6b284069ee06cd9c0afb2368fd8d381afcfecc553cb6b3f29216038d268a8d8fcd00f7":MBEDTLS_ECP_DP_SECP384R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #59 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP384R1)
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_mod_mul_inv:"a340ca2e1f39f89261f20a23881cde271e36b32add90cbc1801d2375d6db664df297df2364aaafbb9ba3d4672e4fd022":MBEDTLS_ECP_DP_SECP384R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #60 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP384R1)
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_mod_mul_inv:"491b1d169c9262fd737847c13bb7370d91825fe985cfa000d4b9bd3c22e7b63016122c53156fae4757943a819a1ced6d":MBEDTLS_ECP_DP_SECP384R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #60.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP384R1)
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_mod_mul_inv:"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff0000000000000000fffffffe":MBEDTLS_ECP_DP_SECP384R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #61 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP521R1)
+depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED
+ecp_mod_mul_inv:"1477156c589f498b61beb35f57662410d8821f3a1ee4a5968a8009618dbe4afda408809822eb0e994fbf9da1659c1ea21b151db97cd1f1567fa4b9327967e0aa591":MBEDTLS_ECP_DP_SECP521R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #62 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP521R1)
+depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED
+ecp_mod_mul_inv:"158dd0fdd801513590d221009f2b6c212f2b30214cc3b1f80aaf9142dc9f328c8e2b0af83e1acdb102d85f287d77188c2b8e7911cf9452f5014966f28da330e1fa6":MBEDTLS_ECP_DP_SECP521R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #63 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP521R1)
+depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED
+ecp_mod_mul_inv:"1e53d580521a1cff4cd72576c13fecb2cbcf39453f2b437f0c8dc78d7982a37749f099942ce693751ec43407c3acf46315132ea2a9ae5fa9253408da2375d2b58fc":MBEDTLS_ECP_DP_SECP521R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #63.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP521R1)
+depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED
+ecp_mod_mul_inv:"1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe":MBEDTLS_ECP_DP_SECP521R1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #64 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE25519)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_mod_mul_inv:"1000000000000000000000000000000014def9dea2079cd65812631a5cf5d3ed":MBEDTLS_ECP_DP_CURVE25519:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #65 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE25519)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_mod_mul_inv:"1000000000000000000000000000000010caf49570936f75d70f03efac6c1c19":MBEDTLS_ECP_DP_CURVE25519:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #66 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE25519)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_mod_mul_inv:"468de1bfdbb20b67371bc5ad0f2bc3e70705b6d85c14ad75daafdbd1502cfd1":MBEDTLS_ECP_DP_CURVE25519:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #66.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE25519)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_mod_mul_inv:"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffec":MBEDTLS_ECP_DP_CURVE25519:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #67 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192K1)
+depends_on:MBEDTLS_ECP_DP_SECP192K1_ENABLED
+ecp_mod_mul_inv:"2228b202d612f2e66d8ca00b7e1c19a737ee7db2708d91cd":MBEDTLS_ECP_DP_SECP192K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #68 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192K1)
+depends_on:MBEDTLS_ECP_DP_SECP192K1_ENABLED
+ecp_mod_mul_inv:"40c0451d06b0d622c65b8336c4c9abe8828f6fd5d5c1abde":MBEDTLS_ECP_DP_SECP192K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #69 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192K1)
+depends_on:MBEDTLS_ECP_DP_SECP192K1_ENABLED
+ecp_mod_mul_inv:"d2a10413f48d7bcc18a9b7c53c7914c5302c9c9e48b2eb62":MBEDTLS_ECP_DP_SECP192K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #69.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP192K1)
+depends_on:MBEDTLS_ECP_DP_SECP192K1_ENABLED
+ecp_mod_mul_inv:"fffffffffffffffffffffffffffffffffffffffeffffee36":MBEDTLS_ECP_DP_SECP192K1:MBEDTLS_ECP_MOD_COORDINATE
+
+# For coordinate moduli of secp224K1 the values are selected as one for
+# modulus - 1, and four random values, generated with
+# random.getrandbits(224) % modulus with a seed(2, 2).
+ecp_mul_inv #70 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"fffffffffffffffffffffffffffffffffffffffffffffffeffffe56c":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #71 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"15ba2bdd177219d30e7a269fd95bafc8f2a4d27bdcf4bb99f4bea973":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #72 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"da94e3e8ab73738fcf1822ffbc6887782b491044d5e341245c6e4337":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #73 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"94c9c9500925e4749b575bd13653f8dd9b1f282e4067c3584ee207f8":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #74 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"cdbd47d364be8049a372db8f6e405d93ffed9235288bc781ae662675":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #75 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP224K1)
+depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
+ecp_mod_mul_inv:"8b4f2fc15f3f57ebf30b94fa82523e86feac7eb7dc38f519b91751da":MBEDTLS_ECP_DP_SECP224K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #76 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256K1)
+depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED
+ecp_mod_mul_inv:"9fd95fed98cc1c2ef91b5dc02fa84f63597e15a3326c07f2918afb3ffd093343":MBEDTLS_ECP_DP_SECP256K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #77 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256K1)
+depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED
+ecp_mod_mul_inv:"5ddbd441c7037e11caaa9878216c5cfeae67864260429eab4529b56c2661f3de":MBEDTLS_ECP_DP_SECP256K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #78 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256K1)
+depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED
+ecp_mod_mul_inv:"f8d3f3c02fd712f711d8e30d0d4c142eb106e5f75c25f55b3f983bc5c83c568a":MBEDTLS_ECP_DP_SECP256K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #78.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_SECP256K1)
+depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED
+ecp_mod_mul_inv:"fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2e":MBEDTLS_ECP_DP_SECP256K1:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #79 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE448)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_mod_mul_inv:"0000000000000003fffffffffffffffffffffffffffffffffffffffffffffffffffffff11ca23e9c44edb49aed63690216cc2728dc58f552378c292ab5844f3":MBEDTLS_ECP_DP_CURVE448:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #80 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE448)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_mod_mul_inv:"0000000000000003fffffffffffffffffffffffffffffffffffffffffffffffffffffff0169d3f35081924aeaf1beac2f2720557c9bdf6b42cdceb54c6160ba":MBEDTLS_ECP_DP_CURVE448:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #81 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE448)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_mod_mul_inv:"0000000000000003fffffffffffffffffffffffffffffffffffffffffffffffffffffff01243a939d867d7e0a75a8568d4d66de88f3ecc1ad37f91a8f9d7d70":MBEDTLS_ECP_DP_CURVE448:MBEDTLS_ECP_MOD_COORDINATE
+
+ecp_mul_inv #81.1 MBEDTLS_ECP_MOD_COORDINATE(MBEDTLS_ECP_DP_CURVE448)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_mod_mul_inv:"000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffffffffffffffffffffffffffffffffffffffffffffffffffffe":MBEDTLS_ECP_DP_CURVE448:MBEDTLS_ECP_MOD_COORDINATE
+
 # The following data was generated using python's standard random library,
 # initialised with seed(2,2) and random.getrandbits(curve bits). Curve bits are 192,256,384,520.
 # They must be less than the named curves' modulus. mbedtls_mpi_mod_residue_setup()
diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index 55ded45..2658a43 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -1296,70 +1296,70 @@
     switch (curve_id) {
 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && defined(MBEDTLS_ECP_NIST_OPTIM)
         case MBEDTLS_ECP_DP_SECP192R1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(192) * 2;
             curve_bits = 192;
             curve_func = &mbedtls_ecp_mod_p192_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && defined(MBEDTLS_ECP_NIST_OPTIM)
         case MBEDTLS_ECP_DP_SECP224R1:
-            limbs = 448 / biL;
+            limbs = BITS_TO_LIMBS(224) * 2;
             curve_bits = 224;
             curve_func = &mbedtls_ecp_mod_p224_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && defined(MBEDTLS_ECP_NIST_OPTIM)
         case MBEDTLS_ECP_DP_SECP256R1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(256) * 2;
             curve_bits = 256;
             curve_func = &mbedtls_ecp_mod_p256_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) && defined(MBEDTLS_ECP_NIST_OPTIM)
         case MBEDTLS_ECP_DP_SECP384R1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(384) * 2;
             curve_bits = 384;
             curve_func = &mbedtls_ecp_mod_p384_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) && defined(MBEDTLS_ECP_NIST_OPTIM)
         case MBEDTLS_ECP_DP_SECP521R1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(522) * 2;
             curve_bits = 522;
             curve_func = &mbedtls_ecp_mod_p521_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP192K1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(192) * 2;
             curve_bits = 192;
             curve_func = &mbedtls_ecp_mod_p192k1_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP224K1:
-            limbs = 448 / biL;
+            limbs = BITS_TO_LIMBS(224) * 2;
             curve_bits = 224;
             curve_func = &mbedtls_ecp_mod_p224k1_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP256K1:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(256) * 2;
             curve_bits = 256;
             curve_func = &mbedtls_ecp_mod_p256k1_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
         case MBEDTLS_ECP_DP_CURVE25519:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(255) * 2;
             curve_bits = 255;
             curve_func = &mbedtls_ecp_mod_p255_raw;
             break;
 #endif
 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
         case MBEDTLS_ECP_DP_CURVE448:
-            limbs = 2 * limbs_N;
+            limbs = BITS_TO_LIMBS(448) * 2;
             curve_bits = 448;
             curve_func = &mbedtls_ecp_mod_p448_raw;
             break;