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cmac+hash: change parameter types

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For consistency and safety, change the CMC and HSH functions to accept
signed lengths and handle negative values as errors. Also, change the
input data type to void * to not require casting in the caller.
This commit is contained in:
Miroslav Lichvar
2020-07-08 12:02:12 +02:00
parent de4ecc72d1
commit d93aa10bac
13 changed files with 64 additions and 53 deletions
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12
test/unit/cmac.c
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@@ -31,9 +31,9 @@
struct cmac_test {
const char *name;
const unsigned char key[MAX_KEY_LENGTH];
unsigned int key_length;
int key_length;
const unsigned char hash[MAX_HASH_LENGTH];
unsigned int hash_length;
int hash_length;
};
void
@@ -52,8 +52,7 @@ test_unit(void)
CMC_Algorithm algorithm;
CMC_Instance inst;
unsigned int length;
int i, j;
int i, j, length;
#ifndef HAVE_CMAC
TEST_REQUIRE(0);
@@ -68,7 +67,7 @@ test_unit(void)
DEBUG_LOG("testing %s", tests[i].name);
for (j = 0; j <= 128; j++) {
for (j = -1; j <= 128; j++) {
if (j == tests[i].key_length)
continue;
TEST_CHECK(!CMC_CreateInstance(algorithm, tests[i].key, j));
@@ -79,6 +78,9 @@ test_unit(void)
TEST_CHECK(!CMC_CreateInstance(0, tests[i].key, tests[i].key_length));
TEST_CHECK(CMC_Hash(inst, data, -1, hash, sizeof (hash)) == 0);
TEST_CHECK(CMC_Hash(inst, data, sizeof (data) - 1, hash, -1) == 0);
for (j = 0; j <= sizeof (hash); j++) {
memset(hash, 0, sizeof (hash));
length = CMC_Hash(inst, data, sizeof (data) - 1, hash, j);