view release on metacpan or  search on metacpan

libsecp256k1/tools/tests_wycheproof_generate.py  view on Meta::CPAN

        if test_vector['result'] == "invalid":
            expected_verify = 0
        elif test_vector['result'] == "valid":
            expected_verify = 1
        else:
            raise ValueError("invalid result field")

        if num_vectors != 0 and sig_size != 0:
            signatures += ",\n  "

        new_msg = False
        msg = to_c_array(test_vector['msg'])
        msg_offset = offset_msg_running
        # check for repeated msg
        if msg not in cache_msgs:
            if num_vectors != 0 and msg_size != 0:
                messages += ",\n  "
            cache_msgs[msg] = offset_msg_running
            messages += msg
            new_msg = True
        else:
            msg_offset = cache_msgs[msg]

        new_pk = False
        pk = to_c_array(public_key['uncompressed'])
        pk_offset = offset_pk_running
        # check for repeated pk
        if pk not in cache_public_keys:
            if num_vectors != 0:
                public_keys += ",\n  "
            cache_public_keys[pk] = offset_pk_running
            public_keys += pk
            new_pk = True
        else:
            pk_offset = cache_public_keys[pk]

        signatures += to_c_array(test_vector['sig'])

        out += "  /" + "* tcId: " + str(test_vector['tcId']) + ". " + test_vector['comment'] + " *" + "/\n"
        out += f"  {{{pk_offset}, {msg_offset}, {msg_size}, {offset_sig}, {sig_size}, {expected_verify} }},\n"
        if new_msg:
            offset_msg_running += msg_size
        if new_pk:
            offset_pk_running += 65
        offset_sig += sig_size
        num_vectors += 1

struct_definition = """
typedef struct {
    size_t pk_offset;
    size_t msg_offset;
    size_t msg_len;
    size_t sig_offset;
    size_t sig_len;
    int expected_verify;
} wycheproof_ecdsa_testvector;
"""


print("/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */")
print(f"#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS ({num_vectors})")

print(struct_definition)

print("static const unsigned char wycheproof_ecdsa_messages[]    = { " + messages + "};\n")
print("static const unsigned char wycheproof_ecdsa_public_keys[] = { " + public_keys + "};\n")
print("static const unsigned char wycheproof_ecdsa_signatures[]  = { " + signatures + "};\n")

print("static const wycheproof_ecdsa_testvector testvectors[SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS] = {")
print(out)
print("};")