commit dacfe563700e703f30f7a3dd3044b0d253786fd8
author Gabor Mezei <gabor.mezei@arm.com> Tue May 02 14:05:13 2023 +0200
committer Gabor Mezei <gabor.mezei@arm.com> Tue May 16 17:29:57 2023 +0200
tree b9fb8522a9bb265ea2402436c369e463579429a4
parent 55a701afeccf1197828f7f736e55d56b7f54df2d

Add `_raw` function to P192K1

Modified the testing to use the generic fast reduction test function.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>

library/ecp_curves.c

diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index b07753a..feda4ce 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -4613,7 +4613,7 @@
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
 static int ecp_mod_p192k1(mbedtls_mpi *);
 MBEDTLS_STATIC_TESTABLE
-int mbedtls_ecp_mod_p192k1(mbedtls_mpi *);
+int mbedtls_ecp_mod_p192k1_raw(mbedtls_mpi_uint *X, size_t X_limbs);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
 static int ecp_mod_p224k1(mbedtls_mpi *);
@@ -5629,21 +5629,21 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t expected_width = 2 * ((192 + biL - 1) / biL);
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
-    ret = mbedtls_ecp_mod_p192k1(N);
+    ret = mbedtls_ecp_mod_p192k1_raw(N->p, expected_width);
 
 cleanup:
     return ret;
 }
 
 MBEDTLS_STATIC_TESTABLE
-int mbedtls_ecp_mod_p192k1(mbedtls_mpi *N)
+int mbedtls_ecp_mod_p192k1_raw(mbedtls_mpi_uint *X, size_t X_limbs)
 {
     static mbedtls_mpi_uint Rp[] = {
-        MBEDTLS_BYTES_TO_T_UINT_8(0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00,
-                                  0x00)
+        MBEDTLS_BYTES_TO_T_UINT_8(0xC9, 0x11, 0x00, 0x00,
+                                  0x01, 0x00, 0x00, 0x00)
     };
 
-    return ecp_mod_koblitz(N->p, N->n, Rp, 192);
+    return ecp_mod_koblitz(X, X_limbs, Rp, 192);
 }
 
 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */

library/ecp_invasive.h

diff --git a/library/ecp_invasive.h b/library/ecp_invasive.h
index 68187ac..78e0bcb 100644
--- a/library/ecp_invasive.h
+++ b/library/ecp_invasive.h
@@ -176,7 +176,7 @@
  * with R = 2^32 + 2^12 + 2^8 + 2^7 + 2^6 + 2^3 + 1 = 0x0100001119
  */
 MBEDTLS_STATIC_TESTABLE
-int mbedtls_ecp_mod_p192k1(mbedtls_mpi *N);
+int mbedtls_ecp_mod_p192k1_raw(mbedtls_mpi_uint *X, size_t X_limbs);
 
 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)