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Added AEAD support to crypto tester

This commit is contained in:
Martin Willi 2010-08-18 20:15:18 +02:00
parent b519071299
commit e09a87d652
2 changed files with 214 additions and 1 deletions
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171
src/libstrongswan/crypto/crypto_tester.c
View File

@ -40,6 +40,11 @@ struct private_crypto_tester_t {
*/
linked_list_t *crypter;
/**
* List of aead test vectors
*/
linked_list_t *aead;
/**
* List of signer test vectors
*/
@ -255,6 +260,162 @@ METHOD(crypto_tester_t, test_crypter, bool,
return !failed;
}
/**
* Benchmark an aead transform
*/
static u_int bench_aead(private_crypto_tester_t *this,
encryption_algorithm_t alg, aead_constructor_t create)
{
aead_t *aead;
aead = create(alg, 0);
if (aead)
{
char iv[aead->get_iv_size(aead)];
char key[aead->get_key_size(aead)];
char assoc[4];
chunk_t buf;
struct timespec start;
u_int runs;
size_t icv;
memset(iv, 0x56, sizeof(iv));
memset(key, 0x12, sizeof(key));
memset(assoc, 0x78, sizeof(assoc));
aead->set_key(aead, chunk_from_thing(key));
icv = aead->get_icv_size(aead);
buf = chunk_alloc(this->bench_size + icv);
memset(buf.ptr, 0x34, buf.len);
buf.len -= icv;
runs = 0;
start_timing(&start);
while (end_timing(&start) < this->bench_time)
{
aead->encrypt(aead, buf, chunk_from_thing(assoc),
chunk_from_thing(iv), NULL);
aead->decrypt(aead, chunk_create(buf.ptr, buf.len + icv),
chunk_from_thing(assoc), chunk_from_thing(iv), NULL);
runs++;
}
free(buf.ptr);
aead->destroy(aead);
return runs;
}
return 0;
}
METHOD(crypto_tester_t, test_aead, bool,
private_crypto_tester_t *this, encryption_algorithm_t alg, size_t key_size,
aead_constructor_t create, u_int *speed)
{
enumerator_t *enumerator;
aead_test_vector_t *vector;
bool failed = FALSE;
u_int tested = 0;
enumerator = this->aead->create_enumerator(this->aead);
while (enumerator->enumerate(enumerator, &vector))
{
aead_t *aead;
chunk_t key, plain, cipher, iv, assoc;
size_t icv;
if (vector->alg != alg)
{
continue;
}
if (key_size && key_size != vector->key_size)
{ /* test only vectors with a specific key size, if key size given */
continue;
}
aead = create(alg, vector->key_size);
if (!aead)
{ /* key size not supported... */
continue;
}
failed = FALSE;
tested++;
key = chunk_create(vector->key, aead->get_key_size(aead));
aead->set_key(aead, key);
iv = chunk_create(vector->iv, aead->get_iv_size(aead));
assoc = chunk_create(vector->adata, vector->alen);
icv = aead->get_icv_size(aead);
/* allocated encryption */
plain = chunk_create(vector->plain, vector->len);
aead->encrypt(aead, plain, assoc, iv, &cipher);
if (!memeq(vector->cipher, cipher.ptr, cipher.len))
{
failed = TRUE;
}
/* inline decryption */
if (!aead->decrypt(aead, cipher, assoc, iv, NULL))
{
failed = TRUE;
}
if (!memeq(vector->plain, cipher.ptr, cipher.len - icv))
{
failed = TRUE;
}
free(cipher.ptr);
/* allocated decryption */
cipher = chunk_create(vector->cipher, vector->len + icv);
if (!aead->decrypt(aead, cipher, assoc, iv, &plain))
{
plain = chunk_empty;
failed = TRUE;
}
else if (!memeq(vector->plain, plain.ptr, plain.len))
{
failed = TRUE;
}
plain.ptr = realloc(plain.ptr, plain.len + icv);
/* inline encryption */
aead->encrypt(aead, plain, assoc, iv, NULL);
if (!memeq(vector->cipher, plain.ptr, plain.len + icv))
{
failed = TRUE;
}
free(plain.ptr);
aead->destroy(aead);
if (failed)
{
DBG1(DBG_LIB, "disabled %N: %s test vector failed",
encryption_algorithm_names, alg, get_name(vector));
break;
}
}
enumerator->destroy(enumerator);
if (!tested)
{
DBG1(DBG_LIB, "%s %N: no test vectors found",
this->required ? "disabled" : "enabled ",
encryption_algorithm_names, alg);
return !this->required;
}
if (!failed)
{
if (speed)
{
*speed = bench_aead(this, alg, create);
DBG1(DBG_LIB, "enabled %N: passed %u test vectors, %d points",
encryption_algorithm_names, alg, tested, *speed);
}
else
{
DBG1(DBG_LIB, "enabled %N: passed %u test vectors",
encryption_algorithm_names, alg, tested);
}
}
return !failed;
}
/**
* Benchmark a signer
*/
@ -805,6 +966,12 @@ METHOD(crypto_tester_t, add_crypter_vector, void,
this->crypter->insert_last(this->crypter, vector);
}
METHOD(crypto_tester_t, add_aead_vector, void,
private_crypto_tester_t *this, aead_test_vector_t *vector)
{
this->aead->insert_last(this->aead, vector);
}
METHOD(crypto_tester_t, add_signer_vector, void,
private_crypto_tester_t *this, signer_test_vector_t *vector)
{
@ -833,6 +1000,7 @@ METHOD(crypto_tester_t, destroy, void,
private_crypto_tester_t *this)
{
this->crypter->destroy(this->crypter);
this->aead->destroy(this->aead);
this->signer->destroy(this->signer);
this->hasher->destroy(this->hasher);
this->prf->destroy(this->prf);
@ -850,11 +1018,13 @@ crypto_tester_t *crypto_tester_create()
INIT(this,
.public = {
.test_crypter = _test_crypter,
.test_aead = _test_aead,
.test_signer = _test_signer,
.test_hasher = _test_hasher,
.test_prf = _test_prf,
.test_rng = _test_rng,
.add_crypter_vector = _add_crypter_vector,
.add_aead_vector = _add_aead_vector,
.add_signer_vector = _add_signer_vector,
.add_hasher_vector = _add_hasher_vector,
.add_prf_vector = _add_prf_vector,
@ -862,6 +1032,7 @@ crypto_tester_t *crypto_tester_create()
.destroy = _destroy,
},
.crypter = linked_list_create(),
.aead = linked_list_create(),
.signer = linked_list_create(),
.hasher = linked_list_create(),
.prf = linked_list_create(),

44
src/libstrongswan/crypto/crypto_tester.h
View File

@ -26,6 +26,7 @@ typedef struct crypto_tester_t crypto_tester_t;
#include <crypto/crypto_factory.h>
typedef struct crypter_test_vector_t crypter_test_vector_t;
typedef struct aead_test_vector_t aead_test_vector_t;
typedef struct signer_test_vector_t signer_test_vector_t;
typedef struct hasher_test_vector_t hasher_test_vector_t;
typedef struct prf_test_vector_t prf_test_vector_t;
@ -48,6 +49,27 @@ struct crypter_test_vector_t {
u_char *cipher;
};
struct aead_test_vector_t {
/** encryption algorithm this vector tests */
encryption_algorithm_t alg;
/** key length to use, in bytes */
size_t key_size;
/** encryption key of test vector */
u_char *key;
/** initialization vector, using crypters blocksize bytes */
u_char *iv;
/** length of associated data */
size_t alen;
/** associated data */
u_char *adata;
/** length of plain text */
size_t len;
/** plain text */
u_char *plain;
/** cipher text */
u_char *cipher;
};
struct signer_test_vector_t {
/** signer algorithm this test vector tests */
pseudo_random_function_t alg;
@ -114,7 +136,7 @@ struct crypto_tester_t {
* Test a crypter algorithm, optionally using a specified key size.
*
* @param alg algorithm to test
* @param key_size key size to test, 0 for all
* @param key_size key size to test, 0 for default
* @param create constructor function for the crypter
* @param speed speed test result, NULL to omit
* @return TRUE if test passed
@ -122,6 +144,19 @@ struct crypto_tester_t {
bool (*test_crypter)(crypto_tester_t *this, encryption_algorithm_t alg,
size_t key_size, crypter_constructor_t create,
u_int *speed);
/**
* Test an aead algorithm, optionally using a specified key size.
*
* @param alg algorithm to test
* @param key_size key size to test, 0 for default
* @param create constructor function for the aead transform
* @param speed speed test result, NULL to omit
* @return TRUE if test passed
*/
bool (*test_aead)(crypto_tester_t *this, encryption_algorithm_t alg,
size_t key_size, aead_constructor_t create,
u_int *speed);
/**
* Test a signer algorithm.
*
@ -169,6 +204,13 @@ struct crypto_tester_t {
*/
void (*add_crypter_vector)(crypto_tester_t *this,
crypter_test_vector_t *vector);
/**
* Add a test vector to test an aead transform.
*
* @param vector pointer to test vector
*/
void (*add_aead_vector)(crypto_tester_t *this,
aead_test_vector_t *vector);
/**
* Add a test vector to test a signer.
*