Bignum tests: add default datasets

Add data for small values, 192 bit and 1024 bit values, primes,
non-primes odd, even, and some typical corner cases.

All subclasses override this for the time being so there are no changes
to the test cases.

Signed-off-by: Janos Follath <janos.follath@arm.com>

scripts/mbedtls_dev/bignum_common.py

@@ -20,6 +20,7 @@ from itertools import chain
 
 from . import test_case
 from . import test_data_generation
+from .bignum_data import INPUTS_DEFAULT, MODULI_DEFAULT
 
 T = TypeVar('T') #pylint: disable=invalid-name
 
@@ -90,7 +91,7 @@ class OperationCommon(test_data_generation.BaseTest):
             values are 1 and 2.
     """
     symbol = ""
-    input_values = [] # type: List[str]
+    input_values = INPUTS_DEFAULT # type: List[str]
     input_cases = [] # type: List[Any]
     unique_combinations_only = True
     input_styles = ["variable", "fixed", "arch_split"] # type: List[str]
@@ -240,7 +241,7 @@ class OperationCommon(test_data_generation.BaseTest):
 class ModOperationCommon(OperationCommon):
     #pylint: disable=abstract-method
     """Target for bignum mod_raw test case generation."""
-    moduli = [] # type: List[str]
+    moduli = MODULI_DEFAULT # type: List[str]
 
     def __init__(self, val_n: str, val_a: str, val_b: str = "0",
                  bits_in_limb: int = 64) -> None:

scripts/mbedtls_dev/bignum_data.py

@@ -90,6 +90,33 @@ RANDOM_1024_BIT_SEED_4_NO5 = ("53be4721f5b9e1f5acdac615bc20f6264922b9ccf469aef8"
                               "4708d9893a973000b54a23020fc5b043d6e4a51519d9c9cc"
                               "52d32377e78131c1")
 
+# Adding 192 bit and 1024 bit numbers because these are the shortest required
+# for ECC and RSA respectively.
+INPUTS_DEFAULT = [
+        "0", "1", # corner cases
+        "2", "3", # small primes
+        "4",      # non-prime even
+        "38",     # small random
+        SAFE_PRIME_192_BIT_SEED_1,  # prime
+        RANDOM_192_BIT_SEED_2_NO1,  # not a prime
+        RANDOM_192_BIT_SEED_2_NO2,  # not a prime
+        SAFE_PRIME_1024_BIT_SEED_3, # prime
+        RANDOM_1024_BIT_SEED_4_NO1, # not a prime
+        RANDOM_1024_BIT_SEED_4_NO3, # not a prime
+        RANDOM_1024_BIT_SEED_4_NO2, # largest (not a prime)
+        ]
+
+# Only odd moduli are present as in the new bignum code only odd moduli are
+# supported for now.
+MODULI_DEFAULT = [
+        "53", # safe prime
+        "45", # non-prime
+        SAFE_PRIME_192_BIT_SEED_1,  # safe prime
+        RANDOM_192_BIT_SEED_2_NO4,  # not a prime
+        SAFE_PRIME_1024_BIT_SEED_3, # safe prime
+        RANDOM_1024_BIT_SEED_4_NO5, # not a prime
+        ]
+
 def __gen_safe_prime(bits, seed):
     '''
     Generate a safe prime.