mbedtls_mpi_lt_mpi_ct: add tests for 32 bit limbs

The corner case tests were designed for 64 bit limbs and failed on 32
bit platforms because the numbers in the test ended up being stored in a
different number of limbs and the function (correctly) returnd an error
upon receiving them.

Author: yanesca

tests/suites/test_suite_mpi.data

@@ -208,21 +208,46 @@ mbedtls_mpi_lt_mpi_ct:3:"2B5":2:"2B5":0:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
 Base test mbedtls_mpi_lt_mpi_ct (Y is longer in storage) #8
 mbedtls_mpi_lt_mpi_ct:3:"2B5":4:"2B5":0:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
 
-Base test mbedtls_mpi_lt_mpi_ct (corner case) #1
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 64 bit) #1
+depends_on:MBEDTLS_HAVE_INT64
 mbedtls_mpi_lt_mpi_ct:1:"7FFFFFFFFFFFFFFF":1:"FF":0:0
 
-Base test mbedtls_mpi_lt_mpi_ct (corner case) #2
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 64 bit) #2
+depends_on:MBEDTLS_HAVE_INT64
 mbedtls_mpi_lt_mpi_ct:1:"8000000000000000":1:"7FFFFFFFFFFFFFFF":0:0
 
-Base test mbedtls_mpi_lt_mpi_ct (corner case) #2
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 64 bit) #3
+depends_on:MBEDTLS_HAVE_INT64
 mbedtls_mpi_lt_mpi_ct:1:"8000000000000000":1:"1":0:0
 
-Base test mbedtls_mpi_lt_mpi_ct (corner case) #2
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 64 bit) #4
+depends_on:MBEDTLS_HAVE_INT64
 mbedtls_mpi_lt_mpi_ct:1:"8000000000000000":1:"0":0:0
 
-Base test mbedtls_mpi_lt_mpi_ct (corner case) #3
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 64 bit) #5
+depends_on:MBEDTLS_HAVE_INT64
 mbedtls_mpi_lt_mpi_ct:1:"FFFFFFFFFFFFFFFF":1:"FF":0:0
 
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 32 bit) #1
+depends_on:MBEDTLS_HAVE_INT32
+mbedtls_mpi_lt_mpi_ct:1:"7FFFFFFF":1:"FF":0:0
+
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 32 bit) #2
+depends_on:MBEDTLS_HAVE_INT32
+mbedtls_mpi_lt_mpi_ct:1:"80000000":1:"7FFFFFFF":0:0
+
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 32 bit) #3
+depends_on:MBEDTLS_HAVE_INT32
+mbedtls_mpi_lt_mpi_ct:1:"80000000":1:"1":0:0
+
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 32 bit) #4
+depends_on:MBEDTLS_HAVE_INT32
+mbedtls_mpi_lt_mpi_ct:1:"80000000":1:"0":0:0
+
+Base test mbedtls_mpi_lt_mpi_ct (corner case - 32 bit) #5
+depends_on:MBEDTLS_HAVE_INT32
+mbedtls_mpi_lt_mpi_ct:1:"FFFFFFFF":1:"FF":0:0
+
 Multi-limb mbedtls_mpi_lt_mpi_ct (X<Y, zero vs non-zero MS limb) #1
 mbedtls_mpi_lt_mpi_ct:2:"0FFFFFFFFFFFFFFFF":2:"1FFFFFFFFFFFFFFFF":1:0