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#include "p11-tests.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/sha.h>
static int
test_dsa_sign_verify(CK_SESSION_HANDLE session, CK_OBJECT_HANDLE key,
CK_OBJECT_HANDLE privkey, DSA* dsa)
{
CK_BYTE hash[20];
CK_BYTE sig[P11T_BLOCK];
CK_BYTE encsig[P11T_BLOCK];
unsigned char *ptr;
CK_MECHANISM mech;
CK_ULONG n_hash, n_sig;
DSA_SIG *dsa_sig;
CK_RV rv;
int res, n_encsig;
/* Hash the data for DSA */
SHA1(p11t_test_data, p11t_test_data_size, hash);
n_hash = 20;
mech.mechanism = CKM_DSA;
mech.pParameter = NULL;
mech.ulParameterLen = 0;
P11T_SECTION("C_SignInit");
rv = (p11t_module_funcs->C_SignInit)(session, &mech, privkey);
P11T_CHECK_RV("CKM_DSA", rv, CKR_OK);
P11T_SECTION("C_Sign");
n_sig = sizeof(sig);
rv = (p11t_module_funcs->C_Sign)(session, hash, n_hash, sig, &n_sig);
/* Requires authentication */
if (rv == CKR_USER_NOT_LOGGED_IN) {
rv = p11t_key_login_context_specific (session, privkey);
P11T_CHECK_RV("Always authenticate", rv, CKR_OK);
rv = (p11t_module_funcs->C_Sign)(session, hash, n_hash, sig, &n_sig);
}
P11T_CHECK_RV("CKM_DSA", rv, CKR_OK);
if(n_sig != 40)
P11T_CHECK_FAIL("Length of DSA signature");
/* Verify the DSA signature via openssl */
dsa_sig = DSA_SIG_new();
assert (dsa_sig);
dsa_sig->r = BN_bin2bn(sig, 20, NULL);
dsa_sig->s = BN_bin2bn(sig + 20, 20, NULL);
ptr = encsig;
n_encsig = i2d_DSA_SIG(dsa_sig, &ptr);
DSA_SIG_free(dsa_sig);
res = DSA_verify(0, hash, n_hash, encsig, n_encsig, dsa);
if(res != 1)
P11T_CHECK_FAIL_MSG("Check valid DSA signature", p11t_msg_openssl());
P11T_SECTION("C_VerifyInit");
rv = (p11t_module_funcs->C_VerifyInit)(session, &mech, key);
P11T_CHECK_RV("CKM_DSA", rv, CKR_OK);
P11T_SECTION("C_Verify");
rv = (p11t_module_funcs->C_Verify)(session, hash, n_hash, sig, n_sig);
P11T_CHECK_RV("CKM_DSA", rv, CKR_OK);
return CONTINUE;
}
static int
test_dsa_public_key(CK_SESSION_HANDLE session, CK_OBJECT_HANDLE key,
CK_MECHANISM_TYPE mech_type)
{
CK_OBJECT_HANDLE privkey;
CK_ATTRIBUTE attrs[1];
CK_BBOOL can_verify = 0;
DSA *dsa;
attrs[0].type = CKA_VERIFY;
attrs[0].ulValueLen = sizeof(CK_BBOOL);
attrs[0].pValue = &can_verify;
if(!p11t_object_get (session, key, attrs, 1))
return CONTINUE;
dsa = p11t_key_export_public_dsa (session, key);
if(!dsa)
return CONTINUE;
privkey = p11t_key_get_private (session, key);
if (privkey == CK_INVALID)
return CONTINUE;
if(can_verify)
test_dsa_sign_verify(session, key, privkey, dsa);
DSA_free(dsa);
return CONTINUE;
}
static int
test_dsa_private_key(CK_SESSION_HANDLE session, CK_OBJECT_HANDLE key,
CK_MECHANISM_TYPE mech_type)
{
CK_OBJECT_HANDLE pubkey;
CK_ATTRIBUTE attrs[2];
CK_BBOOL can_sign = 0;
DSA *dsa;
attrs[0].type = CKA_SIGN;
attrs[0].ulValueLen = sizeof(CK_BBOOL);
attrs[0].pValue = &can_sign;
if(!p11t_object_get(session, key, attrs, 1))
return CONTINUE;
pubkey = p11t_key_get_public(session, key);
if (pubkey == CK_INVALID)
return CONTINUE;
dsa = p11t_key_export_public_dsa(session, pubkey);
if(!dsa)
return CONTINUE;
if(can_sign)
test_dsa_sign_verify(session, pubkey, key, dsa);
DSA_free(dsa);
return CONTINUE;
}
static void
test_dsa (CK_SLOT_ID slot, CK_MECHANISM_TYPE mech, CK_MECHANISM_INFO_PTR info)
{
CK_SESSION_HANDLE session;
CK_ATTRIBUTE attrs[2];
CK_ATTRIBUTE attr;
CK_OBJECT_CLASS klass;
CK_KEY_TYPE key_type = CKK_DSA;
CK_BBOOL token = CK_TRUE;
CK_OBJECT_HANDLE_PTR keys;
CK_ULONG i, n_keys;
/* Find all keys that match this mechanism */
attrs[0].type = CKA_TOKEN;
attrs[0].ulValueLen = sizeof(token);
attrs[0].pValue = &token;
attrs[1].type = CKA_KEY_TYPE;
attrs[1].ulValueLen = sizeof(key_type);
attrs[1].pValue = &key_type;
session = p11t_session_open(slot, 0);
if(session == CK_INVALID)
return;
if(!p11t_session_login(session))
return;
/* Test signing corner cases */
p11t_crypto_test_sign (session, mech);
p11t_crypto_test_verify (session, mech);
keys = p11t_object_find(session, attrs, 2, &n_keys);
if(!keys)
return;
for(i = 0; i < n_keys; ++i)
{
attr.type = CKA_CLASS;
attr.ulValueLen = sizeof(klass);
attr.pValue = &klass;
if(p11t_object_get(session, keys[i], &attr, 1))
{
if(klass == CKO_PRIVATE_KEY)
test_dsa_private_key(session, keys[i], mech);
else if(klass == CKO_PUBLIC_KEY)
test_dsa_public_key(session, keys[i], mech);
}
}
free(keys);
}
void
p11t_dsa_tests(void)
{
p11t_slot_for_each_mech(CKM_DSA, test_dsa);
}
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