static isc_result_t
opensslecdsa_todns(const dst_key_t *key, isc_buffer_t *data) {
isc_result_t ret;
EVP_PKEY *pkey;
EC_KEY *eckey = NULL;
isc_region_t r;
int len;
unsigned char *cp;
unsigned char buf[DNS_KEY_ECDSA384SIZE + 1];
REQUIRE(key->keydata.pkey != NULL);
pkey = key->keydata.pkey;
eckey = EVP_PKEY_get1_EC_KEY(pkey);
if (eckey == NULL)
return (dst__openssl_toresult(ISC_R_FAILURE));
len = i2o_ECPublicKey(eckey, NULL);
/* skip form */
len--;
isc_buffer_availableregion(data, &r);
if (r.length < (unsigned int) len)
DST_RET (ISC_R_NOSPACE);
cp = buf;
if (!i2o_ECPublicKey(eckey, &cp))
DST_RET (dst__openssl_toresult(ISC_R_FAILURE));
memmove(r.base, buf + 1, len);
isc_buffer_add(data, len);
ret = ISC_R_SUCCESS;
err:
if (eckey != NULL)
EC_KEY_free(eckey);
return (ret);
}
static isc_result_t
ecdsa_check(EC_KEY *eckey, dst_key_t *pub)
{
isc_result_t ret = ISC_R_FAILURE;
EVP_PKEY *pkey;
EC_KEY *pubeckey = NULL;
const EC_POINT *pubkey;
if (pub == NULL)
return (ISC_R_SUCCESS);
pkey = pub->keydata.pkey;
if (pkey == NULL)
return (ISC_R_SUCCESS);
pubeckey = EVP_PKEY_get1_EC_KEY(pkey);
if (pubeckey == NULL)
return (ISC_R_SUCCESS);
pubkey = EC_KEY_get0_public_key(pubeckey);
if (pubkey == NULL)
DST_RET (ISC_R_SUCCESS);
if (EC_KEY_set_public_key(eckey, pubkey) != 1)
DST_RET (ISC_R_SUCCESS);
if (EC_KEY_check_key(eckey) == 1)
DST_RET (ISC_R_SUCCESS);
err:
if (pubeckey != NULL)
EC_KEY_free(pubeckey);
return (ret);
}
static isc_result_t
opensslecdsa_fromdns(dst_key_t *key, isc_buffer_t *data) {
isc_result_t ret;
EVP_PKEY *pkey;
EC_KEY *eckey = NULL;
isc_region_t r;
int group_nid;
unsigned int len;
const unsigned char *cp;
unsigned char buf[DNS_KEY_ECDSA384SIZE + 1];
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
if (key->key_alg == DST_ALG_ECDSA256) {
len = DNS_KEY_ECDSA256SIZE;
group_nid = NID_X9_62_prime256v1;
} else {
len = DNS_KEY_ECDSA384SIZE;
group_nid = NID_secp384r1;
}
isc_buffer_remainingregion(data, &r);
if (r.length == 0)
return (ISC_R_SUCCESS);
if (r.length < len)
return (DST_R_INVALIDPUBLICKEY);
eckey = EC_KEY_new_by_curve_name(group_nid);
if (eckey == NULL)
return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
buf[0] = POINT_CONVERSION_UNCOMPRESSED;
memmove(buf + 1, r.base, len);
cp = buf;
if (o2i_ECPublicKey(&eckey,
(const unsigned char **) &cp,
(long) len + 1) == NULL)
DST_RET (dst__openssl_toresult(DST_R_INVALIDPUBLICKEY));
if (EC_KEY_check_key(eckey) != 1)
DST_RET (dst__openssl_toresult(DST_R_INVALIDPUBLICKEY));
pkey = EVP_PKEY_new();
if (pkey == NULL)
DST_RET (ISC_R_NOMEMORY);
if (!EVP_PKEY_set1_EC_KEY(pkey, eckey)) {
EVP_PKEY_free(pkey);
DST_RET (dst__openssl_toresult(ISC_R_FAILURE));
}
isc_buffer_forward(data, len);
key->keydata.pkey = pkey;
key->key_size = len * 4;
ret = ISC_R_SUCCESS;
err:
if (eckey != NULL)
EC_KEY_free(eckey);
return (ret);
}
static isc_result_t
openssldsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
int i;
DSA *dsa = NULL;
isc_mem_t *mctx = key->mctx;
#define DST_RET(a) {ret = a; goto err;}
UNUSED(pub);
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_DSA, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
return (ret);
dsa = DSA_new();
if (dsa == NULL)
DST_RET(ISC_R_NOMEMORY);
dsa->flags &= ~DSA_FLAG_CACHE_MONT_P;
key->keydata.dsa = dsa;
for (i=0; i < priv.nelements; i++) {
BIGNUM *bn;
bn = BN_bin2bn(priv.elements[i].data,
priv.elements[i].length, NULL);
if (bn == NULL)
DST_RET(ISC_R_NOMEMORY);
switch (priv.elements[i].tag) {
case TAG_DSA_PRIME:
dsa->p = bn;
break;
case TAG_DSA_SUBPRIME:
dsa->q = bn;
break;
case TAG_DSA_BASE:
dsa->g = bn;
break;
case TAG_DSA_PRIVATE:
dsa->priv_key = bn;
break;
case TAG_DSA_PUBLIC:
dsa->pub_key = bn;
break;
}
}
dst__privstruct_free(&priv, mctx);
key->key_size = BN_num_bits(dsa->p);
return (ISC_R_SUCCESS);
err:
openssldsa_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
opensslecdsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
EVP_PKEY *pkey;
EC_KEY *eckey = NULL;
BIGNUM *privkey;
int group_nid;
isc_mem_t *mctx = key->mctx;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
if (key->key_alg == DST_ALG_ECDSA256)
group_nid = NID_X9_62_prime256v1;
else
group_nid = NID_secp384r1;
eckey = EC_KEY_new_by_curve_name(group_nid);
if (eckey == NULL)
return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_ECDSA256, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
goto err;
privkey = BN_bin2bn(priv.elements[0].data,
priv.elements[0].length, NULL);
if (privkey == NULL)
DST_RET(ISC_R_NOMEMORY);
if (!EC_KEY_set_private_key(eckey, privkey))
DST_RET(ISC_R_NOMEMORY);
if (ecdsa_check(eckey, pub) != ISC_R_SUCCESS)
DST_RET(DST_R_INVALIDPRIVATEKEY);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
pkey = EVP_PKEY_new();
if (pkey == NULL)
DST_RET (ISC_R_NOMEMORY);
if (!EVP_PKEY_set1_EC_KEY(pkey, eckey)) {
EVP_PKEY_free(pkey);
DST_RET (ISC_R_FAILURE);
}
key->keydata.pkey = pkey;
ret = ISC_R_SUCCESS;
err:
if (eckey != NULL)
EC_KEY_free(eckey);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
opensslecdsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
isc_result_t ret;
dst_key_t *key = dctx->key;
isc_region_t r;
ECDSA_SIG *ecdsasig;
EVP_MD_CTX *evp_md_ctx = dctx->ctxdata.evp_md_ctx;
EVP_PKEY *pkey = key->keydata.pkey;
EC_KEY *eckey = EVP_PKEY_get1_EC_KEY(pkey);
unsigned int dgstlen, siglen;
unsigned char digest[EVP_MAX_MD_SIZE];
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
if (eckey == NULL)
return (ISC_R_FAILURE);
if (key->key_alg == DST_ALG_ECDSA256)
siglen = DNS_SIG_ECDSA256SIZE;
else
siglen = DNS_SIG_ECDSA384SIZE;
isc_buffer_availableregion(sig, &r);
if (r.length < siglen)
DST_RET(ISC_R_NOSPACE);
if (!EVP_DigestFinal(evp_md_ctx, digest, &dgstlen))
DST_RET(dst__openssl_toresult3(dctx->category,
"EVP_DigestFinal",
ISC_R_FAILURE));
ecdsasig = ECDSA_do_sign(digest, dgstlen, eckey);
if (ecdsasig == NULL)
DST_RET(dst__openssl_toresult3(dctx->category,
"ECDSA_do_sign",
DST_R_SIGNFAILURE));
BN_bn2bin_fixed(ecdsasig->r, r.base, siglen / 2);
r.base += siglen / 2;
BN_bn2bin_fixed(ecdsasig->s, r.base, siglen / 2);
r.base += siglen / 2;
ECDSA_SIG_free(ecdsasig);
isc_buffer_add(sig, siglen);
ret = ISC_R_SUCCESS;
err:
if (eckey != NULL)
EC_KEY_free(eckey);
return (ret);
}
static isc_result_t
opensslecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
isc_result_t ret;
dst_key_t *key = dctx->key;
int status;
unsigned char *cp = sig->base;
ECDSA_SIG *ecdsasig = NULL;
EVP_MD_CTX *evp_md_ctx = dctx->ctxdata.evp_md_ctx;
EVP_PKEY *pkey = key->keydata.pkey;
EC_KEY *eckey = EVP_PKEY_get1_EC_KEY(pkey);
unsigned int dgstlen, siglen;
unsigned char digest[EVP_MAX_MD_SIZE];
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
if (eckey == NULL)
return (ISC_R_FAILURE);
if (key->key_alg == DST_ALG_ECDSA256)
siglen = DNS_SIG_ECDSA256SIZE;
else
siglen = DNS_SIG_ECDSA384SIZE;
if (sig->length != siglen)
return (DST_R_VERIFYFAILURE);
if (!EVP_DigestFinal_ex(evp_md_ctx, digest, &dgstlen))
DST_RET (ISC_R_FAILURE);
ecdsasig = ECDSA_SIG_new();
if (ecdsasig == NULL)
DST_RET (ISC_R_NOMEMORY);
ecdsasig->r = BN_bin2bn(cp, siglen / 2, NULL);
cp += siglen / 2;
ecdsasig->s = BN_bin2bn(cp, siglen / 2, NULL);
/* cp += siglen / 2; */
status = ECDSA_do_verify(digest, dgstlen, ecdsasig, eckey);
if (status != 1)
DST_RET (dst__openssl_toresult(DST_R_VERIFYFAILURE));
ret = ISC_R_SUCCESS;
err:
if (ecdsasig != NULL)
ECDSA_SIG_free(ecdsasig);
if (eckey != NULL)
EC_KEY_free(eckey);
return (ret);
}
static isc_result_t
opensslgost_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
isc_mem_t *mctx = key->mctx;
EVP_PKEY *pkey = NULL;
const unsigned char *p;
UNUSED(pub);
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_ECCGOST, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
return (ret);
INSIST(priv.elements[0].tag == TAG_GOST_PRIVASN1);
p = priv.elements[0].data;
if (d2i_PrivateKey(NID_id_GostR3410_2001, &pkey, &p,
(long) priv.elements[0].length) == NULL)
DST_RET(dst__openssl_toresult2("d2i_PrivateKey",
DST_R_INVALIDPRIVATEKEY));
key->keydata.pkey = pkey;
key->key_size = EVP_PKEY_bits(pkey);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
err:
if (pkey != NULL)
EVP_PKEY_free(pkey);
opensslgost_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
opensslecdsa_generate(dst_key_t *key, int unused, void (*callback)(int)) {
isc_result_t ret;
EVP_PKEY *pkey;
EC_KEY *eckey = NULL;
int group_nid;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
UNUSED(unused);
UNUSED(callback);
if (key->key_alg == DST_ALG_ECDSA256) {
group_nid = NID_X9_62_prime256v1;
key->key_size = DNS_KEY_ECDSA256SIZE * 4;
} else {
group_nid = NID_secp384r1;
key->key_size = DNS_KEY_ECDSA384SIZE * 4;
}
eckey = EC_KEY_new_by_curve_name(group_nid);
if (eckey == NULL)
return (dst__openssl_toresult2("EC_KEY_new_by_curve_name",
DST_R_OPENSSLFAILURE));
if (EC_KEY_generate_key(eckey) != 1)
DST_RET (dst__openssl_toresult2("EC_KEY_generate_key",
DST_R_OPENSSLFAILURE));
pkey = EVP_PKEY_new();
if (pkey == NULL)
DST_RET (ISC_R_NOMEMORY);
if (!EVP_PKEY_set1_EC_KEY(pkey, eckey)) {
EVP_PKEY_free(pkey);
DST_RET (ISC_R_FAILURE);
}
key->keydata.pkey = pkey;
ret = ISC_R_SUCCESS;
err:
if (eckey != NULL)
EC_KEY_free(eckey);
return (ret);
}
isc_result_t
dst__opensslgost_init(dst_func_t **funcp) {
isc_result_t ret;
REQUIRE(funcp != NULL);
/* check if the gost engine works properly */
e = ENGINE_by_id("gost");
if (e == NULL)
return (dst__openssl_toresult2("ENGINE_by_id",
DST_R_OPENSSLFAILURE));
if (ENGINE_init(e) <= 0) {
ENGINE_free(e);
e = NULL;
return (dst__openssl_toresult2("ENGINE_init",
DST_R_OPENSSLFAILURE));
}
/* better than to rely on digest_gost symbol */
opensslgost_digest = ENGINE_get_digest(e, NID_id_GostR3411_94);
if (opensslgost_digest == NULL)
DST_RET(dst__openssl_toresult2("ENGINE_get_digest",
DST_R_OPENSSLFAILURE));
/* from openssl.cnf */
if (ENGINE_register_pkey_asn1_meths(e) <= 0)
DST_RET(dst__openssl_toresult2(
"ENGINE_register_pkey_asn1_meths",
DST_R_OPENSSLFAILURE));
if (ENGINE_ctrl_cmd_string(e,
"CRYPT_PARAMS",
"id-Gost28147-89-CryptoPro-A-ParamSet",
0) <= 0)
DST_RET(dst__openssl_toresult2("ENGINE_ctrl_cmd_string",
DST_R_OPENSSLFAILURE));
if (*funcp == NULL)
*funcp = &opensslgost_functions;
return (ISC_R_SUCCESS);
err:
ENGINE_finish(e);
ENGINE_free(e);
e = NULL;
return (ret);
}
static isc_result_t
opensslecdsa_tofile(const dst_key_t *key, const char *directory) {
isc_result_t ret;
EVP_PKEY *pkey;
EC_KEY *eckey = NULL;
const BIGNUM *privkey;
dst_private_t priv;
unsigned char *buf = NULL;
if (key->keydata.pkey == NULL)
return (DST_R_NULLKEY);
if (key->external) {
priv.nelements = 0;
return (dst__privstruct_writefile(key, &priv, directory));
}
pkey = key->keydata.pkey;
eckey = EVP_PKEY_get1_EC_KEY(pkey);
if (eckey == NULL)
return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
privkey = EC_KEY_get0_private_key(eckey);
if (privkey == NULL)
DST_RET (ISC_R_FAILURE);
buf = isc_mem_get(key->mctx, BN_num_bytes(privkey));
if (buf == NULL)
DST_RET (ISC_R_NOMEMORY);
priv.elements[0].tag = TAG_ECDSA_PRIVATEKEY;
priv.elements[0].length = BN_num_bytes(privkey);
BN_bn2bin(privkey, buf);
priv.elements[0].data = buf;
priv.nelements = 1;
ret = dst__privstruct_writefile(key, &priv, directory);
err:
if (eckey != NULL)
EC_KEY_free(eckey);
if (buf != NULL)
isc_mem_put(key->mctx, buf, BN_num_bytes(privkey));
return (ret);
}
static isc_boolean_t
opensslecdsa_compare(const dst_key_t *key1, const dst_key_t *key2) {
isc_boolean_t ret;
int status;
EVP_PKEY *pkey1 = key1->keydata.pkey;
EVP_PKEY *pkey2 = key2->keydata.pkey;
EC_KEY *eckey1 = NULL;
EC_KEY *eckey2 = NULL;
const BIGNUM *priv1, *priv2;
if (pkey1 == NULL && pkey2 == NULL)
return (ISC_TRUE);
else if (pkey1 == NULL || pkey2 == NULL)
return (ISC_FALSE);
eckey1 = EVP_PKEY_get1_EC_KEY(pkey1);
eckey2 = EVP_PKEY_get1_EC_KEY(pkey2);
if (eckey1 == NULL && eckey2 == NULL) {
DST_RET (ISC_TRUE);
} else if (eckey1 == NULL || eckey2 == NULL)
DST_RET (ISC_FALSE);
status = EVP_PKEY_cmp(pkey1, pkey2);
if (status != 1)
DST_RET (ISC_FALSE);
priv1 = EC_KEY_get0_private_key(eckey1);
priv2 = EC_KEY_get0_private_key(eckey2);
if (priv1 != NULL || priv2 != NULL) {
if (priv1 == NULL || priv2 == NULL)
DST_RET (ISC_FALSE);
if (BN_cmp(priv1, priv2) != 0)
DST_RET (ISC_FALSE);
}
ret = ISC_TRUE;
err:
if (eckey1 != NULL)
EC_KEY_free(eckey1);
if (eckey2 != NULL)
EC_KEY_free(eckey2);
return (ret);
}
static isc_result_t
opensslgost_generate(dst_key_t *key, int unused, void (*callback)(int)) {
EVP_PKEY_CTX *ctx;
union {
void *dptr;
void (*fptr)(int);
} u;
EVP_PKEY *pkey = NULL;
isc_result_t ret;
UNUSED(unused);
ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, NULL);
if (ctx == NULL)
DST_RET(dst__openssl_toresult2("EVP_PKEY_CTX_new_id",
DST_R_OPENSSLFAILURE));
if (callback != NULL) {
u.fptr = callback;
EVP_PKEY_CTX_set_app_data(ctx, u.dptr);
EVP_PKEY_CTX_set_cb(ctx, &progress_cb);
}
if (EVP_PKEY_keygen_init(ctx) <= 0)
DST_RET(dst__openssl_toresult2("EVP_PKEY_keygen_init",
DST_R_OPENSSLFAILURE));
if (EVP_PKEY_CTX_ctrl_str(ctx, "paramset", "A") <= 0)
DST_RET(dst__openssl_toresult2("EVP_PKEY_CTX_ctrl_str",
DST_R_OPENSSLFAILURE));
if (EVP_PKEY_keygen(ctx, &pkey) <= 0)
DST_RET(dst__openssl_toresult2("EVP_PKEY_keygen",
DST_R_OPENSSLFAILURE));
key->keydata.pkey = pkey;
key->key_size = EVP_PKEY_bits(pkey);
EVP_PKEY_CTX_free(ctx);
return (ISC_R_SUCCESS);
err:
if (pkey != NULL)
EVP_PKEY_free(pkey);
if (ctx != NULL)
EVP_PKEY_CTX_free(ctx);
return (ret);
}
static isc_result_t
pkcs11rsa_generate(dst_key_t *key, int exp, void (*callback)(int)) {
CK_RV rv;
CK_MECHANISM mech = { CKM_RSA_PKCS_KEY_PAIR_GEN, NULL, 0 };
CK_OBJECT_HANDLE pub = CK_INVALID_HANDLE;
CK_ULONG bits = 0;
CK_BYTE pubexp[5];
CK_OBJECT_CLASS pubClass = CKO_PUBLIC_KEY;
CK_KEY_TYPE keyType = CKK_RSA;
CK_ATTRIBUTE pubTemplate[] =
{
{ CKA_CLASS, &pubClass, (CK_ULONG) sizeof(pubClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_VERIFY, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_MODULUS_BITS, &bits, (CK_ULONG) sizeof(bits) },
{ CKA_PUBLIC_EXPONENT, &pubexp, (CK_ULONG) sizeof(pubexp) }
};
CK_OBJECT_HANDLE priv = CK_INVALID_HANDLE;
CK_OBJECT_CLASS privClass = CKO_PRIVATE_KEY;
CK_ATTRIBUTE privTemplate[] =
{
{ CKA_CLASS, &privClass, (CK_ULONG) sizeof(privClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SENSITIVE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_EXTRACTABLE, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_SIGN, &truevalue, (CK_ULONG) sizeof(truevalue) },
};
CK_ATTRIBUTE *attr;
pk11_object_t *rsa;
pk11_context_t *pk11_ctx;
isc_result_t ret;
unsigned int i;
UNUSED(callback);
pk11_ctx = (pk11_context_t *) isc_mem_get(key->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
return (ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_RSA, ISC_TRUE, ISC_FALSE,
ISC_FALSE, NULL, pk11_get_best_token(OP_RSA));
if (ret != ISC_R_SUCCESS)
goto err;
bits = key->key_size;
if (exp == 0) {
/* RSA_F4 0x10001 */
pubexp[0] = 1;
pubexp[1] = 0;
pubexp[2] = 1;
pubTemplate[6].ulValueLen = 3;
} else {
/* F5 0x100000001 */
pubexp[0] = 1;
pubexp[1] = 0;
pubexp[2] = 0;
pubexp[3] = 0;
pubexp[4] = 1;
pubTemplate[6].ulValueLen = 5;
}
PK11_RET(pkcs_C_GenerateKeyPair,
(pk11_ctx->session, &mech,
pubTemplate, (CK_ULONG) 7,
privTemplate, (CK_ULONG) 7,
&pub, &priv),
DST_R_CRYPTOFAILURE);
rsa = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*rsa));
if (rsa == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(rsa, 0, sizeof(*rsa));
key->keydata.pkey = rsa;
rsa->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 8);
if (rsa->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(rsa->repr, 0, sizeof(*attr) * 8);
rsa->attrcnt = 8;
attr = rsa->repr;
attr[0].type = CKA_MODULUS;
attr[1].type = CKA_PUBLIC_EXPONENT;
attr[2].type = CKA_PRIVATE_EXPONENT;
attr[3].type = CKA_PRIME_1;
attr[4].type = CKA_PRIME_2;
attr[5].type = CKA_EXPONENT_1;
attr[6].type = CKA_EXPONENT_2;
attr[7].type = CKA_COEFFICIENT;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 2),
DST_R_CRYPTOFAILURE);
for (i = 0; i <= 1; i++) {
attr[i].pValue = isc_mem_get(key->mctx, attr[i].ulValueLen);
if (attr[i].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr[i].pValue, 0, attr[i].ulValueLen);
}
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 2),
DST_R_CRYPTOFAILURE);
attr += 2;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 6),
DST_R_CRYPTOFAILURE);
for (i = 0; i <= 5; i++) {
attr[i].pValue = isc_mem_get(key->mctx, attr[i].ulValueLen);
if (attr[i].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr[i].pValue, 0, attr[i].ulValueLen);
}
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 6),
DST_R_CRYPTOFAILURE);
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ISC_R_SUCCESS);
err:
pkcs11rsa_destroy(key);
if (priv != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
if (pub != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ret);
}
static isc_result_t
pkcs11rsa_createctx_sign(dst_key_t *key, dst_context_t *dctx) {
CK_RV rv;
CK_MECHANISM mech = { 0, NULL, 0 };
CK_OBJECT_CLASS keyClass = CKO_PRIVATE_KEY;
CK_KEY_TYPE keyType = CKK_RSA;
CK_ATTRIBUTE keyTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SENSITIVE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SIGN, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_MODULUS, NULL, 0 },
{ CKA_PUBLIC_EXPONENT, NULL, 0 },
{ CKA_PRIVATE_EXPONENT, NULL, 0 },
{ CKA_PRIME_1, NULL, 0 },
{ CKA_PRIME_2, NULL, 0 },
{ CKA_EXPONENT_1, NULL, 0 },
{ CKA_EXPONENT_2, NULL, 0 },
{ CKA_COEFFICIENT, NULL, 0 }
};
CK_ATTRIBUTE *attr;
CK_SLOT_ID slotid;
pk11_object_t *rsa;
pk11_context_t *pk11_ctx;
isc_result_t ret;
unsigned int i;
REQUIRE(key->key_alg == DST_ALG_RSAMD5 ||
key->key_alg == DST_ALG_RSASHA1 ||
key->key_alg == DST_ALG_NSEC3RSASHA1 ||
key->key_alg == DST_ALG_RSASHA256 ||
key->key_alg == DST_ALG_RSASHA512);
rsa = key->keydata.pkey;
pk11_ctx = (pk11_context_t *) isc_mem_get(dctx->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
return (ISC_R_NOMEMORY);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
if (rsa->ontoken)
slotid = rsa->slot;
else
slotid = pk11_get_best_token(OP_RSA);
ret = pk11_get_session(pk11_ctx, OP_RSA, ISC_TRUE, ISC_FALSE,
rsa->reqlogon, NULL, slotid);
if (ret != ISC_R_SUCCESS)
goto err;
if (rsa->ontoken && (rsa->object != CK_INVALID_HANDLE)) {
pk11_ctx->ontoken = rsa->ontoken;
pk11_ctx->object = rsa->object;
goto token_key;
}
for (attr = pk11_attribute_first(rsa);
attr != NULL;
attr = pk11_attribute_next(rsa, attr))
switch (attr->type) {
case CKA_MODULUS:
INSIST(keyTemplate[6].type == attr->type);
keyTemplate[6].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[6].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[6].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[6].ulValueLen = attr->ulValueLen;
break;
case CKA_PUBLIC_EXPONENT:
INSIST(keyTemplate[7].type == attr->type);
keyTemplate[7].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[7].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[7].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[7].ulValueLen = attr->ulValueLen;
break;
case CKA_PRIVATE_EXPONENT:
INSIST(keyTemplate[8].type == attr->type);
keyTemplate[8].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[8].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[8].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[8].ulValueLen = attr->ulValueLen;
break;
case CKA_PRIME_1:
INSIST(keyTemplate[9].type == attr->type);
keyTemplate[9].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[9].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[9].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[9].ulValueLen = attr->ulValueLen;
break;
case CKA_PRIME_2:
INSIST(keyTemplate[10].type == attr->type);
keyTemplate[10].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[10].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[10].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[10].ulValueLen = attr->ulValueLen;
break;
case CKA_EXPONENT_1:
INSIST(keyTemplate[11].type == attr->type);
keyTemplate[11].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[11].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[11].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[11].ulValueLen = attr->ulValueLen;
break;
case CKA_EXPONENT_2:
INSIST(keyTemplate[12].type == attr->type);
keyTemplate[12].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[12].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[12].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[12].ulValueLen = attr->ulValueLen;
break;
case CKA_COEFFICIENT:
INSIST(keyTemplate[13].type == attr->type);
keyTemplate[13].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[13].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[13].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[13].ulValueLen = attr->ulValueLen;
break;
}
pk11_ctx->object = CK_INVALID_HANDLE;
pk11_ctx->ontoken = ISC_FALSE;
PK11_RET(pkcs_C_CreateObject,
(pk11_ctx->session,
keyTemplate, (CK_ULONG) 14,
&pk11_ctx->object),
ISC_R_FAILURE);
token_key:
switch (dctx->key->key_alg) {
case DST_ALG_RSAMD5:
mech.mechanism = CKM_MD5_RSA_PKCS;
break;
case DST_ALG_RSASHA1:
case DST_ALG_NSEC3RSASHA1:
mech.mechanism = CKM_SHA1_RSA_PKCS;
break;
case DST_ALG_RSASHA256:
mech.mechanism = CKM_SHA256_RSA_PKCS;
break;
case DST_ALG_RSASHA512:
mech.mechanism = CKM_SHA512_RSA_PKCS;
break;
default:
INSIST(0);
}
PK11_RET(pkcs_C_SignInit,
(pk11_ctx->session, &mech, pk11_ctx->object),
ISC_R_FAILURE);
dctx->ctxdata.pk11_ctx = pk11_ctx;
for (i = 6; i <= 13; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
return (ISC_R_SUCCESS);
err:
if (!pk11_ctx->ontoken && (pk11_ctx->object != CK_INVALID_HANDLE))
(void) pkcs_C_DestroyObject(pk11_ctx->session,
pk11_ctx->object);
for (i = 6; i <= 13; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(dctx->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ret);
}
static isc_result_t
pkcs11rsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
int i;
pk11_object_t *rsa;
CK_ATTRIBUTE *attr;
isc_mem_t *mctx = key->mctx;
const char *engine = NULL, *label = NULL;
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_RSA, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
return (ret);
if (key->external) {
if (priv.nelements != 0)
DST_RET(DST_R_INVALIDPRIVATEKEY);
if (pub == NULL)
DST_RET(DST_R_INVALIDPRIVATEKEY);
key->keydata.pkey = pub->keydata.pkey;
pub->keydata.pkey = NULL;
key->key_size = pub->key_size;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
}
for (i = 0; i < priv.nelements; i++) {
switch (priv.elements[i].tag) {
case TAG_RSA_ENGINE:
engine = (char *)priv.elements[i].data;
break;
case TAG_RSA_LABEL:
label = (char *)priv.elements[i].data;
break;
default:
break;
}
}
rsa = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*rsa));
if (rsa == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(rsa, 0, sizeof(*rsa));
key->keydata.pkey = rsa;
/* Is this key is stored in a HSM? See if we can fetch it. */
if ((label != NULL) || (engine != NULL)) {
ret = pkcs11rsa_fetch(key, engine, label, pub);
if (ret != ISC_R_SUCCESS)
goto err;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
rsa->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 8);
if (rsa->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(rsa->repr, 0, sizeof(*attr) * 8);
rsa->attrcnt = 8;
attr = rsa->repr;
attr[0].type = CKA_MODULUS;
attr[1].type = CKA_PUBLIC_EXPONENT;
attr[2].type = CKA_PRIVATE_EXPONENT;
attr[3].type = CKA_PRIME_1;
attr[4].type = CKA_PRIME_2;
attr[5].type = CKA_EXPONENT_1;
attr[6].type = CKA_EXPONENT_2;
attr[7].type = CKA_COEFFICIENT;
for (i = 0; i < priv.nelements; i++) {
CK_BYTE *bn;
switch (priv.elements[i].tag) {
case TAG_RSA_ENGINE:
continue;
case TAG_RSA_LABEL:
continue;
default:
bn = isc_mem_get(key->mctx, priv.elements[i].length);
if (bn == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(bn, priv.elements[i].data,
priv.elements[i].length);
}
switch (priv.elements[i].tag) {
case TAG_RSA_MODULUS:
attr = pk11_attribute_bytype(rsa, CKA_MODULUS);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_PUBLICEXPONENT:
attr = pk11_attribute_bytype(rsa,
CKA_PUBLIC_EXPONENT);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_PRIVATEEXPONENT:
attr = pk11_attribute_bytype(rsa,
CKA_PRIVATE_EXPONENT);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_PRIME1:
attr = pk11_attribute_bytype(rsa, CKA_PRIME_1);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_PRIME2:
attr = pk11_attribute_bytype(rsa, CKA_PRIME_2);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_EXPONENT1:
attr = pk11_attribute_bytype(rsa,
CKA_EXPONENT_1);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_EXPONENT2:
attr = pk11_attribute_bytype(rsa,
CKA_EXPONENT_2);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
case TAG_RSA_COEFFICIENT:
attr = pk11_attribute_bytype(rsa,
CKA_COEFFICIENT);
INSIST(attr != NULL);
attr->pValue = bn;
attr->ulValueLen = priv.elements[i].length;
break;
}
}
if (rsa_check(rsa, pub->keydata.pkey) != ISC_R_SUCCESS)
DST_RET(DST_R_INVALIDPRIVATEKEY);
attr = pk11_attribute_bytype(rsa, CKA_MODULUS);
INSIST(attr != NULL);
key->key_size = pk11_numbits(attr->pValue, attr->ulValueLen);
attr = pk11_attribute_bytype(rsa, CKA_PUBLIC_EXPONENT);
INSIST(attr != NULL);
if (pk11_numbits(attr->pValue, attr->ulValueLen) > RSA_MAX_PUBEXP_BITS)
DST_RET(ISC_R_RANGE);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
err:
pkcs11rsa_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
pkcs11rsa_fromlabel(dst_key_t *key, const char *engine, const char *label,
const char *pin)
{
CK_RV rv;
CK_OBJECT_HANDLE hKey = CK_INVALID_HANDLE;
CK_OBJECT_CLASS keyClass = CKO_PUBLIC_KEY;
CK_KEY_TYPE keyType = CKK_RSA;
CK_ATTRIBUTE searchTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_LABEL, NULL, 0 }
};
CK_ULONG cnt;
CK_ATTRIBUTE *attr;
pk11_object_t *rsa;
pk11_context_t *pk11_ctx = NULL;
isc_result_t ret;
unsigned int i;
UNUSED(pin);
rsa = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*rsa));
if (rsa == NULL)
return (ISC_R_NOMEMORY);
memset(rsa, 0, sizeof(*rsa));
rsa->object = CK_INVALID_HANDLE;
rsa->ontoken = ISC_TRUE;
rsa->reqlogon = ISC_TRUE;
key->keydata.pkey = rsa;
rsa->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 2);
if (rsa->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(rsa->repr, 0, sizeof(*attr) * 2);
rsa->attrcnt = 2;
attr = rsa->repr;
attr[0].type = CKA_MODULUS;
attr[1].type = CKA_PUBLIC_EXPONENT;
ret = pk11_parse_uri(rsa, label, key->mctx, OP_RSA);
if (ret != ISC_R_SUCCESS)
goto err;
pk11_ctx = (pk11_context_t *) isc_mem_get(key->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
DST_RET(ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_RSA, ISC_TRUE, ISC_FALSE,
rsa->reqlogon, NULL, rsa->slot);
if (ret != ISC_R_SUCCESS)
goto err;
attr = pk11_attribute_bytype(rsa, CKA_LABEL);
if (attr == NULL) {
attr = pk11_attribute_bytype(rsa, CKA_ID);
INSIST(attr != NULL);
searchTemplate[3].type = CKA_ID;
}
searchTemplate[3].pValue = attr->pValue;
searchTemplate[3].ulValueLen = attr->ulValueLen;
PK11_RET(pkcs_C_FindObjectsInit,
(pk11_ctx->session, searchTemplate, (CK_ULONG) 4),
DST_R_CRYPTOFAILURE);
PK11_RET(pkcs_C_FindObjects,
(pk11_ctx->session, &hKey, (CK_ULONG) 1, &cnt),
DST_R_CRYPTOFAILURE);
(void) pkcs_C_FindObjectsFinal(pk11_ctx->session);
if (cnt == 0)
DST_RET(ISC_R_NOTFOUND);
if (cnt > 1)
DST_RET(ISC_R_EXISTS);
attr = rsa->repr;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, hKey, attr, 2),
DST_R_CRYPTOFAILURE);
for (i = 0; i <= 1; i++) {
attr[i].pValue = isc_mem_get(key->mctx, attr[i].ulValueLen);
if (attr[i].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr[i].pValue, 0, attr[i].ulValueLen);
}
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, hKey, attr, 2),
DST_R_CRYPTOFAILURE);
keyClass = CKO_PRIVATE_KEY;
PK11_RET(pkcs_C_FindObjectsInit,
(pk11_ctx->session, searchTemplate, (CK_ULONG) 4),
DST_R_CRYPTOFAILURE);
PK11_RET(pkcs_C_FindObjects,
(pk11_ctx->session, &rsa->object, (CK_ULONG) 1, &cnt),
DST_R_CRYPTOFAILURE);
(void) pkcs_C_FindObjectsFinal(pk11_ctx->session);
if (cnt == 0)
DST_RET(ISC_R_NOTFOUND);
if (cnt > 1)
DST_RET(ISC_R_EXISTS);
if (engine != NULL) {
key->engine = isc_mem_strdup(key->mctx, engine);
if (key->engine == NULL)
DST_RET(ISC_R_NOMEMORY);
}
key->label = isc_mem_strdup(key->mctx, label);
if (key->label == NULL)
DST_RET(ISC_R_NOMEMORY);
attr = pk11_attribute_bytype(rsa, CKA_PUBLIC_EXPONENT);
INSIST(attr != NULL);
if (pk11_numbits(attr->pValue, attr->ulValueLen) > RSA_MAX_PUBEXP_BITS)
DST_RET(ISC_R_RANGE);
attr = pk11_attribute_bytype(rsa, CKA_MODULUS);
INSIST(attr != NULL);
key->key_size = pk11_numbits(attr->pValue, attr->ulValueLen);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ISC_R_SUCCESS);
err:
pkcs11rsa_destroy(key);
if (pk11_ctx != NULL) {
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
}
return (ret);
}
static isc_result_t
pkcs11gost_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
pk11_object_t *gost = NULL;
CK_ATTRIBUTE *attr, *pattr;
isc_mem_t *mctx = key->mctx;
if ((pub == NULL) || (pub->keydata.pkey == NULL))
DST_RET(DST_R_INVALIDPRIVATEKEY);
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_ECDSA256, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
return (ret);
if (key->external) {
if (priv.nelements != 0)
DST_RET(DST_R_INVALIDPRIVATEKEY);
key->keydata.pkey = pub->keydata.pkey;
pub->keydata.pkey = NULL;
key->key_size = pub->key_size;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
}
if (priv.elements[0].tag == TAG_GOST_PRIVASN1) {
int adj = (int) priv.elements[0].length - (39 + 32);
unsigned char buf[39];
if ((adj > 0) || (adj < -31))
DST_RET(DST_R_INVALIDPRIVATEKEY);
memmove(buf, gost_private_der, 39);
if (adj != 0) {
buf[1] += adj;
buf[36] += adj;
buf[38] += adj;
}
if (memcmp(priv.elements[0].data, buf, 39) != 0)
DST_RET(DST_R_INVALIDPRIVATEKEY);
priv.elements[0].tag = TAG_GOST_PRIVRAW;
priv.elements[0].length -= 39;
memmove(priv.elements[0].data,
priv.elements[0].data + 39,
32 + adj);
}
gost = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*gost));
if (gost == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(gost, 0, sizeof(*gost));
key->keydata.pkey = gost;
gost->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx,
sizeof(*attr) * 2);
if (gost->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(gost->repr, 0, sizeof(*attr) * 2);
gost->attrcnt = 2;
attr = gost->repr;
attr->type = CKA_VALUE;
pattr = pk11_attribute_bytype(pub->keydata.pkey, CKA_VALUE);
INSIST(pattr != NULL);
attr->pValue = isc_mem_get(key->mctx, pattr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, pattr->pValue, pattr->ulValueLen);
attr->ulValueLen = pattr->ulValueLen;
attr++;
attr->type = CKA_VALUE2;
attr->pValue = isc_mem_get(key->mctx, priv.elements[0].length);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, priv.elements[0].data, priv.elements[0].length);
attr->ulValueLen = priv.elements[0].length;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
err:
pkcs11gost_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
pkcs11rsa_fetch(dst_key_t *key, const char *engine, const char *label,
dst_key_t *pub)
{
CK_RV rv;
CK_OBJECT_CLASS keyClass = CKO_PRIVATE_KEY;
CK_KEY_TYPE keyType = CKK_RSA;
CK_ATTRIBUTE searchTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_LABEL, NULL, 0 }
};
CK_ULONG cnt;
CK_ATTRIBUTE *attr;
CK_ATTRIBUTE *pubattr;
pk11_object_t *rsa;
pk11_object_t *pubrsa;
pk11_context_t *pk11_ctx = NULL;
isc_result_t ret;
if (label == NULL)
return (DST_R_NOENGINE);
rsa = key->keydata.pkey;
pubrsa = pub->keydata.pkey;
rsa->object = CK_INVALID_HANDLE;
rsa->ontoken = ISC_TRUE;
rsa->reqlogon = ISC_TRUE;
rsa->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 2);
if (rsa->repr == NULL)
return (ISC_R_NOMEMORY);
memset(rsa->repr, 0, sizeof(*attr) * 2);
rsa->attrcnt = 2;
attr = rsa->repr;
attr->type = CKA_MODULUS;
pubattr = pk11_attribute_bytype(pubrsa, CKA_MODULUS);
attr->pValue = isc_mem_get(key->mctx, pubattr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, pubattr->pValue, pubattr->ulValueLen);
attr->ulValueLen = pubattr->ulValueLen;
attr++;
attr->type = CKA_PUBLIC_EXPONENT;
pubattr = pk11_attribute_bytype(pubrsa, CKA_PUBLIC_EXPONENT);
attr->pValue = isc_mem_get(key->mctx, pubattr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, pubattr->pValue, pubattr->ulValueLen);
attr->ulValueLen = pubattr->ulValueLen;
ret = pk11_parse_uri(rsa, label, key->mctx, OP_RSA);
if (ret != ISC_R_SUCCESS)
goto err;
pk11_ctx = (pk11_context_t *) isc_mem_get(key->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
DST_RET(ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_RSA, ISC_TRUE, ISC_FALSE,
rsa->reqlogon, NULL, rsa->slot);
if (ret != ISC_R_SUCCESS)
goto err;
attr = pk11_attribute_bytype(rsa, CKA_LABEL);
if (attr == NULL) {
attr = pk11_attribute_bytype(rsa, CKA_ID);
INSIST(attr != NULL);
searchTemplate[3].type = CKA_ID;
}
searchTemplate[3].pValue = attr->pValue;
searchTemplate[3].ulValueLen = attr->ulValueLen;
PK11_RET(pkcs_C_FindObjectsInit,
(pk11_ctx->session, searchTemplate, (CK_ULONG) 4),
DST_R_CRYPTOFAILURE);
PK11_RET(pkcs_C_FindObjects,
(pk11_ctx->session, &rsa->object, (CK_ULONG) 1, &cnt),
DST_R_CRYPTOFAILURE);
(void) pkcs_C_FindObjectsFinal(pk11_ctx->session);
if (cnt == 0)
DST_RET(ISC_R_NOTFOUND);
if (cnt > 1)
DST_RET(ISC_R_EXISTS);
if (engine != NULL) {
key->engine = isc_mem_strdup(key->mctx, engine);
if (key->engine == NULL)
DST_RET(ISC_R_NOMEMORY);
}
key->label = isc_mem_strdup(key->mctx, label);
if (key->label == NULL)
DST_RET(ISC_R_NOMEMORY);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
attr = pk11_attribute_bytype(rsa, CKA_MODULUS);
INSIST(attr != NULL);
key->key_size = pk11_numbits(attr->pValue, attr->ulValueLen);
return (ISC_R_SUCCESS);
err:
if (pk11_ctx != NULL) {
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
}
return (ret);
}
static isc_result_t
pkcs11gost_createctx_verify(dst_key_t *key, dst_context_t *dctx) {
CK_RV rv;
CK_MECHANISM mech = { CKM_GOSTR3410_WITH_GOSTR3411, NULL, 0 };
CK_OBJECT_CLASS keyClass = CKO_PUBLIC_KEY;
CK_KEY_TYPE keyType = CKK_GOSTR3410;
CK_ATTRIBUTE keyTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_VERIFY, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_VALUE, NULL, 0 },
{ CKA_GOSTR3410_PARAMS, pk11_gost_a_paramset,
(CK_ULONG) sizeof(pk11_gost_a_paramset) },
{ CKA_GOSTR3411_PARAMS, pk11_gost_paramset,
(CK_ULONG) sizeof(pk11_gost_paramset) }
};
CK_ATTRIBUTE *attr;
pk11_object_t *gost;
pk11_context_t *pk11_ctx;
isc_result_t ret;
unsigned int i;
pk11_ctx = (pk11_context_t *) isc_mem_get(dctx->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
return (ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_GOST, ISC_FALSE, ISC_FALSE, NULL,
pk11_get_best_token(OP_GOST));
if (ret != ISC_R_SUCCESS)
goto err;
gost = key->keydata.pkey;
if (gost->ontoken && (gost->object != CK_INVALID_HANDLE)) {
pk11_ctx->ontoken = gost->ontoken;
pk11_ctx->object = gost->object;
goto token_key;
}
for (attr = pk11_attribute_first(gost);
attr != NULL;
attr = pk11_attribute_next(gost, attr))
switch (attr->type) {
case CKA_VALUE:
INSIST(keyTemplate[5].type == attr->type);
keyTemplate[5].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[5].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[5].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[5].ulValueLen = attr->ulValueLen;
break;
}
pk11_ctx->object = CK_INVALID_HANDLE;
pk11_ctx->ontoken = ISC_FALSE;
PK11_RET(pkcs_C_CreateObject,
(pk11_ctx->session,
keyTemplate, (CK_ULONG) 8,
&pk11_ctx->object),
ISC_R_FAILURE);
token_key:
PK11_RET(pkcs_C_VerifyInit,
(pk11_ctx->session, &mech, pk11_ctx->object),
ISC_R_FAILURE);
dctx->ctxdata.pk11_ctx = pk11_ctx;
for (i = 5; i <= 5; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
return (ISC_R_SUCCESS);
err:
if (!pk11_ctx->ontoken && (pk11_ctx->object != CK_INVALID_HANDLE))
(void) pkcs_C_DestroyObject(pk11_ctx->session, pk11_ctx->object);
for (i = 5; i <= 5; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(dctx->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ret);
}
static isc_result_t
pkcs11ecdsa_generate(dst_key_t *key, int unused, void (*callback)(int)) {
CK_RV rv;
CK_MECHANISM mech = { CKM_EC_KEY_PAIR_GEN, NULL, 0 };
CK_OBJECT_HANDLE pub = CK_INVALID_HANDLE;
CK_OBJECT_CLASS pubClass = CKO_PUBLIC_KEY;
CK_KEY_TYPE keyType = CKK_EC;
CK_ATTRIBUTE pubTemplate[] =
{
{ CKA_CLASS, &pubClass, (CK_ULONG) sizeof(pubClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_VERIFY, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_EC_PARAMS, NULL, 0 }
};
CK_OBJECT_HANDLE priv = CK_INVALID_HANDLE;
CK_OBJECT_HANDLE privClass = CKO_PRIVATE_KEY;
CK_ATTRIBUTE privTemplate[] =
{
{ CKA_CLASS, &privClass, (CK_ULONG) sizeof(privClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SENSITIVE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_EXTRACTABLE, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_SIGN, &truevalue, (CK_ULONG) sizeof(truevalue) }
};
CK_ATTRIBUTE *attr;
pk11_object_t *ec;
pk11_context_t *pk11_ctx;
isc_result_t ret;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
UNUSED(unused);
UNUSED(callback);
pk11_ctx = (pk11_context_t *) isc_mem_get(key->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
return (ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_EC, ISC_TRUE, ISC_FALSE,
ISC_FALSE, NULL, pk11_get_best_token(OP_EC));
if (ret != ISC_R_SUCCESS)
goto err;
ec = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*ec));
if (ec == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(ec, 0, sizeof(*ec));
key->keydata.pkey = ec;
ec->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 3);
if (ec->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(ec->repr, 0, sizeof(*attr) * 3);
ec->attrcnt = 3;
attr = ec->repr;
attr[0].type = CKA_EC_PARAMS;
attr[1].type = CKA_EC_POINT;
attr[2].type = CKA_VALUE;
attr = &pubTemplate[5];
SETCURVE();
PK11_RET(pkcs_C_GenerateKeyPair,
(pk11_ctx->session, &mech,
pubTemplate, (CK_ULONG) 6,
privTemplate, (CK_ULONG) 7,
&pub, &priv),
DST_R_CRYPTOFAILURE);
attr = &pubTemplate[5];
FREECURVE();
attr = ec->repr;
SETCURVE();
attr++;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 1),
DST_R_CRYPTOFAILURE);
attr->pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr->pValue, 0, attr->ulValueLen);
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 1),
DST_R_CRYPTOFAILURE);
attr++;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 1),
DST_R_CRYPTOFAILURE);
attr->pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr->pValue, 0, attr->ulValueLen);
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 1),
DST_R_CRYPTOFAILURE);
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
if (key->key_alg == DST_ALG_ECDSA256)
key->key_size = DNS_KEY_ECDSA256SIZE * 4;
else
key->key_size = DNS_KEY_ECDSA384SIZE * 4;
return (ISC_R_SUCCESS);
err:
pkcs11ecdsa_destroy(key);
if (priv != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
if (pub != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ret);
}
static isc_result_t
opensslrsa_fromlabel(dst_key_t *key, const char *engine, const char *label,
const char *pin)
{
#ifdef USE_ENGINE
ENGINE *e = NULL;
isc_result_t ret;
EVP_PKEY *pkey = NULL;
RSA *rsa = NULL, *pubrsa = NULL;
char *colon;
UNUSED(pin);
if (engine == NULL)
DST_RET(DST_R_NOENGINE);
e = dst__openssl_getengine(engine);
if (e == NULL)
DST_RET(DST_R_NOENGINE);
pkey = ENGINE_load_public_key(e, label, NULL, NULL);
if (pkey != NULL) {
pubrsa = EVP_PKEY_get1_RSA(pkey);
EVP_PKEY_free(pkey);
if (pubrsa == NULL)
DST_RET(dst__openssl_toresult(DST_R_OPENSSLFAILURE));
}
pkey = ENGINE_load_private_key(e, label, NULL, NULL);
if (pkey == NULL)
DST_RET(dst__openssl_toresult2("ENGINE_load_private_key",
ISC_R_NOTFOUND));
if (engine != NULL) {
key->engine = isc_mem_strdup(key->mctx, engine);
if (key->engine == NULL)
DST_RET(ISC_R_NOMEMORY);
} else {
key->engine = isc_mem_strdup(key->mctx, label);
if (key->engine == NULL)
DST_RET(ISC_R_NOMEMORY);
colon = strchr(key->engine, ':');
if (colon != NULL)
*colon = '\0';
}
key->label = isc_mem_strdup(key->mctx, label);
if (key->label == NULL)
DST_RET(ISC_R_NOMEMORY);
rsa = EVP_PKEY_get1_RSA(pkey);
if (rsa == NULL)
DST_RET(dst__openssl_toresult(DST_R_OPENSSLFAILURE));
if (rsa_check(rsa, pubrsa) != ISC_R_SUCCESS)
DST_RET(DST_R_INVALIDPRIVATEKEY);
if (pubrsa != NULL)
RSA_free(pubrsa);
key->key_size = EVP_PKEY_bits(pkey);
#if USE_EVP
key->keydata.pkey = pkey;
RSA_free(rsa);
#else
key->keydata.rsa = rsa;
EVP_PKEY_free(pkey);
#endif
return (ISC_R_SUCCESS);
err:
if (rsa != NULL)
RSA_free(rsa);
if (pubrsa != NULL)
RSA_free(pubrsa);
if (pkey != NULL)
EVP_PKEY_free(pkey);
return (ret);
#else
UNUSED(key);
UNUSED(engine);
UNUSED(label);
UNUSED(pin);
return(DST_R_NOENGINE);
#endif
}
static isc_result_t
opensslrsa_todns(const dst_key_t *key, isc_buffer_t *data) {
isc_region_t r;
unsigned int e_bytes;
unsigned int mod_bytes;
isc_result_t ret;
RSA *rsa;
#if USE_EVP
EVP_PKEY *pkey;
#endif
#if USE_EVP
REQUIRE(key->keydata.pkey != NULL);
#else
REQUIRE(key->keydata.rsa != NULL);
#endif
#if USE_EVP
pkey = key->keydata.pkey;
rsa = EVP_PKEY_get1_RSA(pkey);
if (rsa == NULL)
return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
#else
rsa = key->keydata.rsa;
#endif
isc_buffer_availableregion(data, &r);
e_bytes = BN_num_bytes(rsa->e);
mod_bytes = BN_num_bytes(rsa->n);
if (e_bytes < 256) { /*%< key exponent is <= 2040 bits */
if (r.length < 1)
DST_RET(ISC_R_NOSPACE);
isc_buffer_putuint8(data, (isc_uint8_t) e_bytes);
isc_region_consume(&r, 1);
} else {
if (r.length < 3)
DST_RET(ISC_R_NOSPACE);
isc_buffer_putuint8(data, 0);
isc_buffer_putuint16(data, (isc_uint16_t) e_bytes);
isc_region_consume(&r, 3);
}
if (r.length < e_bytes + mod_bytes)
DST_RET(ISC_R_NOSPACE);
BN_bn2bin(rsa->e, r.base);
isc_region_consume(&r, e_bytes);
BN_bn2bin(rsa->n, r.base);
isc_buffer_add(data, e_bytes + mod_bytes);
ret = ISC_R_SUCCESS;
err:
#if USE_EVP
if (rsa != NULL)
RSA_free(rsa);
#endif
return (ret);
}
static isc_result_t
opensslrsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
int i;
RSA *rsa = NULL, *pubrsa = NULL;
#ifdef USE_ENGINE
ENGINE *e = NULL;
#endif
isc_mem_t *mctx = key->mctx;
const char *engine = NULL, *label = NULL;
#if defined(USE_ENGINE) || USE_EVP
EVP_PKEY *pkey = NULL;
#endif
#if USE_EVP
if (pub != NULL && pub->keydata.pkey != NULL)
pubrsa = EVP_PKEY_get1_RSA(pub->keydata.pkey);
#else
if (pub != NULL && pub->keydata.rsa != NULL) {
pubrsa = pub->keydata.rsa;
pub->keydata.rsa = NULL;
}
#endif
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_RSA, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
goto err;
for (i = 0; i < priv.nelements; i++) {
switch (priv.elements[i].tag) {
case TAG_RSA_ENGINE:
engine = (char *)priv.elements[i].data;
break;
case TAG_RSA_LABEL:
label = (char *)priv.elements[i].data;
break;
default:
break;
}
}
/*
* Is this key is stored in a HSM?
* See if we can fetch it.
*/
if (label != NULL) {
#ifdef USE_ENGINE
if (engine == NULL)
DST_RET(DST_R_NOENGINE);
e = dst__openssl_getengine(engine);
if (e == NULL)
DST_RET(DST_R_NOENGINE);
pkey = ENGINE_load_private_key(e, label, NULL, NULL);
if (pkey == NULL)
DST_RET(dst__openssl_toresult2(
"ENGINE_load_private_key",
ISC_R_NOTFOUND));
key->engine = isc_mem_strdup(key->mctx, engine);
if (key->engine == NULL)
DST_RET(ISC_R_NOMEMORY);
key->label = isc_mem_strdup(key->mctx, label);
if (key->label == NULL)
DST_RET(ISC_R_NOMEMORY);
rsa = EVP_PKEY_get1_RSA(pkey);
if (rsa == NULL)
DST_RET(dst__openssl_toresult(DST_R_OPENSSLFAILURE));
if (rsa_check(rsa, pubrsa) != ISC_R_SUCCESS)
DST_RET(DST_R_INVALIDPRIVATEKEY);
if (pubrsa != NULL)
RSA_free(pubrsa);
key->key_size = EVP_PKEY_bits(pkey);
#if USE_EVP
key->keydata.pkey = pkey;
RSA_free(rsa);
#else
key->keydata.rsa = rsa;
EVP_PKEY_free(pkey);
#endif
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
#else
DST_RET(DST_R_NOENGINE);
#endif
}
rsa = RSA_new();
if (rsa == NULL)
DST_RET(ISC_R_NOMEMORY);
SET_FLAGS(rsa);
#if USE_EVP
pkey = EVP_PKEY_new();
if (pkey == NULL)
DST_RET(ISC_R_NOMEMORY);
if (!EVP_PKEY_set1_RSA(pkey, rsa))
DST_RET(ISC_R_FAILURE);
key->keydata.pkey = pkey;
#else
key->keydata.rsa = rsa;
#endif
for (i = 0; i < priv.nelements; i++) {
BIGNUM *bn;
switch (priv.elements[i].tag) {
case TAG_RSA_ENGINE:
continue;
case TAG_RSA_LABEL:
continue;
case TAG_RSA_PIN:
continue;
default:
bn = BN_bin2bn(priv.elements[i].data,
priv.elements[i].length, NULL);
if (bn == NULL)
DST_RET(ISC_R_NOMEMORY);
}
switch (priv.elements[i].tag) {
case TAG_RSA_MODULUS:
rsa->n = bn;
break;
case TAG_RSA_PUBLICEXPONENT:
rsa->e = bn;
break;
case TAG_RSA_PRIVATEEXPONENT:
rsa->d = bn;
break;
case TAG_RSA_PRIME1:
rsa->p = bn;
break;
case TAG_RSA_PRIME2:
rsa->q = bn;
break;
case TAG_RSA_EXPONENT1:
rsa->dmp1 = bn;
break;
case TAG_RSA_EXPONENT2:
rsa->dmq1 = bn;
break;
case TAG_RSA_COEFFICIENT:
rsa->iqmp = bn;
break;
}
}
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
if (rsa_check(rsa, pubrsa) != ISC_R_SUCCESS)
DST_RET(DST_R_INVALIDPRIVATEKEY);
key->key_size = BN_num_bits(rsa->n);
if (pubrsa != NULL)
RSA_free(pubrsa);
#if USE_EVP
RSA_free(rsa);
#endif
return (ISC_R_SUCCESS);
err:
#if USE_EVP
if (pkey != NULL)
EVP_PKEY_free(pkey);
#endif
if (rsa != NULL)
RSA_free(rsa);
if (pubrsa != NULL)
RSA_free(pubrsa);
opensslrsa_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
isc_result_t
pk11_parse_uri(pk11_object_t *obj, const char *label,
isc_mem_t *mctx, pk11_optype_t optype)
{
CK_ATTRIBUTE *attr;
pk11_token_t *token = NULL;
char *uri, *p, *a, *na, *v;
size_t len, l;
FILE *stream = NULL;
char pin[PINLEN + 1];
isc_boolean_t gotpin = ISC_FALSE;
isc_result_t ret;
/* get values to work on */
len = strlen(label) + 1;
uri = isc_mem_get(mctx, len);
if (uri == NULL)
return (ISC_R_NOMEMORY);
memmove(uri, label, len);
/* get the URI scheme */
p = strchr(uri, ':');
if (p == NULL)
DST_RET(PK11_R_NOPROVIDER);
*p++ = '\0';
if (strcmp(uri, "pkcs11") != 0)
DST_RET(PK11_R_NOPROVIDER);
/* get attributes */
for (na = p; na != NULL;) {
a = na;
p = strchr(a, ';');
if (p == NULL) {
/* last attribute */
na = NULL;
} else {
*p++ = '\0';
na = p;
}
p = strchr(a, '=');
if (p != NULL) {
*p++ = '\0';
v = p;
} else
v = a;
l = 0;
v = percent_decode(v, &l);
if (v == NULL)
DST_RET(PK11_R_NOPROVIDER);
if ((a == v) || (strcmp(a, "object") == 0)) {
/* object: CKA_LABEL */
attr = pk11_attribute_bytype(obj, CKA_LABEL);
if (attr != NULL)
DST_RET(PK11_R_NOPROVIDER);
attr = push_attribute(obj, mctx, l);
if (attr == NULL)
DST_RET(ISC_R_NOMEMORY);
attr->type = CKA_LABEL;
memmove(attr->pValue, v, l);
} else if (strcmp(a, "token") == 0) {
/* token: CK_TOKEN_INFO label */
if (token == NULL)
for (token = ISC_LIST_HEAD(tokens);
token != NULL;
token = ISC_LIST_NEXT(token, link))
if (pk11strcmp(v, l, token->name, 32))
break;
} else if (strcmp(a, "manufacturer") == 0) {
/* manufacturer: CK_TOKEN_INFO manufacturerID */
if (token == NULL)
for (token = ISC_LIST_HEAD(tokens);
token != NULL;
token = ISC_LIST_NEXT(token, link))
if (pk11strcmp(v, l, token->manuf, 32))
break;
} else if (strcmp(a, "serial") == 0) {
/* serial: CK_TOKEN_INFO serialNumber */
if (token == NULL)
for (token = ISC_LIST_HEAD(tokens);
token != NULL;
token = ISC_LIST_NEXT(token, link))
if (pk11strcmp(v, l, token->serial, 16))
break;
} else if (strcmp(a, "model") == 0) {
/* model: CK_TOKEN_INFO model */
if (token == NULL)
for (token = ISC_LIST_HEAD(tokens);
token != NULL;
token = ISC_LIST_NEXT(token, link))
if (pk11strcmp(v, l, token->model, 16))
break;
} else if (strcmp(a, "library-manufacturer") == 0) {
/* ignored */
} else if (strcmp(a, "library-description") == 0) {
/* ignored */
} else if (strcmp(a, "library-version") == 0) {
/* ignored */
} else if (strcmp(a, "object-type") == 0) {
/* object-type: CKA_CLASS */
/* only private makes sense */
if (strcmp(v, "private") != 0)
DST_RET(PK11_R_NOPROVIDER);
} else if (strcmp(a, "id") == 0) {
/* id: CKA_ID */
attr = pk11_attribute_bytype(obj, CKA_ID);
if (attr != NULL)
DST_RET(PK11_R_NOPROVIDER);
attr = push_attribute(obj, mctx, l);
if (attr == NULL)
DST_RET(ISC_R_NOMEMORY);
attr->type = CKA_ID;
memmove(attr->pValue, v, l);
} else if (strcmp(a, "pin-source") == 0) {
/* pin-source: PIN */
ret = isc_stdio_open(v, "r", &stream);
if (ret != ISC_R_SUCCESS)
goto err;
memset(pin, 0, PINLEN + 1);
ret = isc_stdio_read(pin, 1, PINLEN + 1, stream, &l);
if ((ret != ISC_R_SUCCESS) && (ret != ISC_R_EOF))
goto err;
if (l > PINLEN)
DST_RET(ISC_R_RANGE);
ret = isc_stdio_close(stream);
stream = NULL;
if (ret != ISC_R_SUCCESS)
goto err;
gotpin = ISC_TRUE;
} else
DST_RET(PK11_R_NOPROVIDER);
}
if ((pk11_attribute_bytype(obj, CKA_LABEL) == NULL) &&
(pk11_attribute_bytype(obj, CKA_ID) == NULL))
DST_RET(ISC_R_NOTFOUND);
if (token == NULL) {
if (optype == OP_RSA)
token = best_rsa_token;
else if (optype == OP_DSA)
token = best_dsa_token;
else if (optype == OP_DH)
token = best_dh_token;
else if (optype == OP_EC)
token = best_ec_token;
}
if (token == NULL)
DST_RET(ISC_R_NOTFOUND);
obj->slot = token->slotid;
if (gotpin) {
memmove(token->pin, pin, PINLEN + 1);
obj->reqlogon = ISC_TRUE;
}
ret = ISC_R_SUCCESS;
err:
if (stream != NULL)
(void) isc_stdio_close(stream);
isc_mem_put(mctx, uri, len);
return (ret);
}
static isc_result_t
pkcs11ecdsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
CK_RV rv;
CK_MECHANISM mech = { CKM_ECDSA, NULL, 0 };
CK_OBJECT_HANDLE hKey = CK_INVALID_HANDLE;
CK_OBJECT_CLASS keyClass = CKO_PRIVATE_KEY;
CK_KEY_TYPE keyType = CKK_EC;
CK_ATTRIBUTE keyTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SIGN, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_EC_PARAMS, NULL, 0 },
{ CKA_VALUE, NULL, 0 }
};
CK_ATTRIBUTE *attr;
CK_BYTE digest[ISC_SHA384_DIGESTLENGTH];
CK_ULONG dgstlen;
CK_ULONG siglen;
pk11_context_t *pk11_ctx = dctx->ctxdata.pk11_ctx;
dst_key_t *key = dctx->key;
pk11_object_t *ec = key->keydata.pkey;
isc_region_t r;
isc_result_t ret = ISC_R_SUCCESS;
unsigned int i;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(ec != NULL);
if (key->key_alg == DST_ALG_ECDSA256) {
dgstlen = ISC_SHA256_DIGESTLENGTH;
siglen = DNS_SIG_ECDSA256SIZE;
} else {
siglen = DNS_SIG_ECDSA384SIZE;
dgstlen = ISC_SHA384_DIGESTLENGTH;
}
PK11_RET(pkcs_C_DigestFinal,
(pk11_ctx->session, digest, &dgstlen),
ISC_R_FAILURE);
isc_buffer_availableregion(sig, &r);
if (r.length < siglen)
DST_RET(ISC_R_NOSPACE);
if (ec->ontoken && (ec->object != CK_INVALID_HANDLE)) {
pk11_ctx->ontoken = ec->ontoken;
pk11_ctx->object = ec->object;
goto token_key;
}
for (attr = pk11_attribute_first(ec);
attr != NULL;
attr = pk11_attribute_next(ec, attr))
switch (attr->type) {
case CKA_EC_PARAMS:
INSIST(keyTemplate[5].type == attr->type);
keyTemplate[5].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[5].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[5].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[5].ulValueLen = attr->ulValueLen;
break;
case CKA_VALUE:
INSIST(keyTemplate[6].type == attr->type);
keyTemplate[6].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[6].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[6].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[6].ulValueLen = attr->ulValueLen;
break;
}
pk11_ctx->object = CK_INVALID_HANDLE;
pk11_ctx->ontoken = ISC_FALSE;
PK11_RET(pkcs_C_CreateObject,
(pk11_ctx->session,
keyTemplate, (CK_ULONG) 7,
&hKey),
ISC_R_FAILURE);
token_key:
PK11_RET(pkcs_C_SignInit,
(pk11_ctx->session, &mech,
pk11_ctx->ontoken ? pk11_ctx->object : hKey),
ISC_R_FAILURE);
PK11_RET(pkcs_C_Sign,
(pk11_ctx->session,
digest, dgstlen,
(CK_BYTE_PTR) r.base, &siglen),
DST_R_SIGNFAILURE);
isc_buffer_add(sig, (unsigned int) siglen);
err:
if (hKey != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, hKey);
for (i = 5; i <= 6; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(dctx->mctx, pk11_ctx, sizeof(*pk11_ctx));
dctx->ctxdata.pk11_ctx = NULL;
return (ret);
}
static isc_result_t
pkcs11dh_loadpriv(const dst_key_t *key,
CK_SESSION_HANDLE session,
CK_OBJECT_HANDLE *hKey)
{
CK_RV rv;
CK_OBJECT_CLASS keyClass = CKO_PRIVATE_KEY;
CK_KEY_TYPE keyType = CKK_DH;
CK_ATTRIBUTE keyTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SENSITIVE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_DERIVE, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_PRIME, NULL, 0 },
{ CKA_BASE, NULL, 0 },
{ CKA_VALUE, NULL, 0 }
};
CK_ATTRIBUTE *attr;
const pk11_object_t *priv;
isc_result_t ret;
unsigned int i;
priv = key->keydata.pkey;
if ((priv->object != CK_INVALID_HANDLE) && priv->ontoken) {
*hKey = priv->object;
return (ISC_R_SUCCESS);
}
attr = pk11_attribute_bytype(priv, CKA_PRIME);
if (attr == NULL)
return (DST_R_INVALIDPRIVATEKEY);
keyTemplate[6].pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (keyTemplate[6].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[6].pValue, attr->pValue, attr->ulValueLen);
keyTemplate[6].ulValueLen = attr->ulValueLen;
attr = pk11_attribute_bytype(priv, CKA_BASE);
if (attr == NULL)
DST_RET(DST_R_INVALIDPRIVATEKEY);
keyTemplate[7].pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (keyTemplate[7].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[7].pValue, attr->pValue, attr->ulValueLen);
keyTemplate[7].ulValueLen = attr->ulValueLen;
attr = pk11_attribute_bytype(priv, CKA_VALUE2);
if (attr == NULL)
DST_RET(DST_R_INVALIDPRIVATEKEY);
keyTemplate[8].pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (keyTemplate[8].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[8].pValue, attr->pValue, attr->ulValueLen);
keyTemplate[8].ulValueLen = attr->ulValueLen;
PK11_CALL(pkcs_C_CreateObject,
(session, keyTemplate, (CK_ULONG) 9, hKey),
DST_R_COMPUTESECRETFAILURE);
if (rv == CKR_OK)
ret = ISC_R_SUCCESS;
err:
for (i = 6; i <= 8; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(key->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
return (ret);
}
static isc_result_t
pkcs11gost_generate(dst_key_t *key, int unused, void (*callback)(int)) {
CK_RV rv;
CK_MECHANISM mech = { CKM_GOSTR3410_KEY_PAIR_GEN, NULL, 0 };
CK_KEY_TYPE keyType = CKK_GOSTR3410;
CK_OBJECT_HANDLE pub = CK_INVALID_HANDLE;
CK_OBJECT_CLASS pubClass = CKO_PUBLIC_KEY;
CK_ATTRIBUTE pubTemplate[] =
{
{ CKA_CLASS, &pubClass, (CK_ULONG) sizeof(pubClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_VERIFY, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_GOSTR3410_PARAMS, pk11_gost_a_paramset,
(CK_ULONG) sizeof(pk11_gost_a_paramset) },
{ CKA_GOSTR3411_PARAMS, pk11_gost_paramset,
(CK_ULONG) sizeof(pk11_gost_paramset) }
};
CK_OBJECT_HANDLE priv = CK_INVALID_HANDLE;
CK_OBJECT_HANDLE privClass = CKO_PRIVATE_KEY;
CK_ATTRIBUTE privTemplate[] =
{
{ CKA_CLASS, &privClass, (CK_ULONG) sizeof(privClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_SENSITIVE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_EXTRACTABLE, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_SIGN, &truevalue, (CK_ULONG) sizeof(truevalue) },
};
CK_ATTRIBUTE *attr;
pk11_object_t *gost;
pk11_context_t *pk11_ctx;
isc_result_t ret;
UNUSED(unused);
UNUSED(callback);
pk11_ctx = (pk11_context_t *) isc_mem_get(key->mctx,
sizeof(*pk11_ctx));
if (pk11_ctx == NULL)
return (ISC_R_NOMEMORY);
ret = pk11_get_session(pk11_ctx, OP_GOST, ISC_FALSE, ISC_FALSE, NULL,
pk11_get_best_token(OP_GOST));
if (ret != ISC_R_SUCCESS)
goto err;
PK11_RET(pkcs_C_GenerateKeyPair,
(pk11_ctx->session, &mech,
pubTemplate, (CK_ULONG) 7,
privTemplate, (CK_ULONG) 7,
&pub, &priv),
DST_R_CRYPTOFAILURE);
gost = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*gost));
if (gost == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(gost, 0, sizeof(*gost));
key->keydata.pkey = gost;
gost->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx,
sizeof(*attr) * 2);
if (gost->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(gost->repr, 0, sizeof(*attr) * 2);
gost->attrcnt = 2;
attr = gost->repr;
attr[0].type = CKA_VALUE;
attr[1].type = CKA_VALUE2;
attr = gost->repr;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 1),
DST_R_CRYPTOFAILURE);
attr->pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr->pValue, 0, attr->ulValueLen);
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, pub, attr, 1),
DST_R_CRYPTOFAILURE);
attr++;
attr->type = CKA_VALUE;
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 1),
DST_R_CRYPTOFAILURE);
attr->pValue = isc_mem_get(key->mctx, attr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(attr->pValue, 0, attr->ulValueLen);
PK11_RET(pkcs_C_GetAttributeValue,
(pk11_ctx->session, priv, attr, 1),
DST_R_CRYPTOFAILURE);
attr->type = CKA_VALUE2;
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ISC_R_SUCCESS);
err:
pkcs11gost_destroy(key);
if (priv != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, priv);
if (pub != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, pub);
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(key->mctx, pk11_ctx, sizeof(*pk11_ctx));
return (ret);
}
static isc_result_t
pkcs11ecdsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
dst_private_t priv;
isc_result_t ret;
pk11_object_t *ec = NULL;
CK_ATTRIBUTE *attr, *pattr;
isc_mem_t *mctx = key->mctx;
unsigned int i;
const char *engine = NULL, *label = NULL;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
if ((pub == NULL) || (pub->keydata.pkey == NULL))
DST_RET(DST_R_INVALIDPRIVATEKEY);
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_ECDSA256, lexer, mctx, &priv);
if (ret != ISC_R_SUCCESS)
return (ret);
if (key->external) {
if (priv.nelements != 0)
DST_RET(DST_R_INVALIDPRIVATEKEY);
key->keydata.pkey = pub->keydata.pkey;
pub->keydata.pkey = NULL;
key->key_size = pub->key_size;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ISC_R_SUCCESS);
}
for (i = 0; i < priv.nelements; i++) {
switch (priv.elements[i].tag) {
case TAG_ECDSA_ENGINE:
engine = (char *)priv.elements[i].data;
break;
case TAG_ECDSA_LABEL:
label = (char *)priv.elements[i].data;
break;
default:
break;
}
}
ec = (pk11_object_t *) isc_mem_get(key->mctx, sizeof(*ec));
if (ec == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(ec, 0, sizeof(*ec));
key->keydata.pkey = ec;
/* Is this key is stored in a HSM? See if we can fetch it. */
if ((label != NULL) || (engine != NULL)) {
ret = pkcs11ecdsa_fetch(key, engine, label, pub);
if (ret != ISC_R_SUCCESS)
goto err;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
ec->repr = (CK_ATTRIBUTE *) isc_mem_get(key->mctx, sizeof(*attr) * 3);
if (ec->repr == NULL)
DST_RET(ISC_R_NOMEMORY);
memset(ec->repr, 0, sizeof(*attr) * 3);
ec->attrcnt = 3;
attr = ec->repr;
attr->type = CKA_EC_PARAMS;
pattr = pk11_attribute_bytype(pub->keydata.pkey, CKA_EC_PARAMS);
INSIST(pattr != NULL);
attr->pValue = isc_mem_get(key->mctx, pattr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, pattr->pValue, pattr->ulValueLen);
attr->ulValueLen = pattr->ulValueLen;
attr++;
attr->type = CKA_EC_POINT;
pattr = pk11_attribute_bytype(pub->keydata.pkey, CKA_EC_POINT);
INSIST(pattr != NULL);
attr->pValue = isc_mem_get(key->mctx, pattr->ulValueLen);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, pattr->pValue, pattr->ulValueLen);
attr->ulValueLen = pattr->ulValueLen;
attr++;
attr->type = CKA_VALUE;
attr->pValue = isc_mem_get(key->mctx, priv.elements[0].length);
if (attr->pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(attr->pValue, priv.elements[0].data, priv.elements[0].length);
attr->ulValueLen = priv.elements[0].length;
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
if (key->key_alg == DST_ALG_ECDSA256)
key->key_size = DNS_KEY_ECDSA256SIZE * 4;
else
key->key_size = DNS_KEY_ECDSA384SIZE * 4;
return (ISC_R_SUCCESS);
err:
pkcs11ecdsa_destroy(key);
dst__privstruct_free(&priv, mctx);
memset(&priv, 0, sizeof(priv));
return (ret);
}
static isc_result_t
pkcs11ecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
CK_RV rv;
CK_MECHANISM mech = { CKM_ECDSA, NULL, 0 };
CK_OBJECT_HANDLE hKey = CK_INVALID_HANDLE;
CK_OBJECT_CLASS keyClass = CKO_PUBLIC_KEY;
CK_KEY_TYPE keyType = CKK_EC;
CK_ATTRIBUTE keyTemplate[] =
{
{ CKA_CLASS, &keyClass, (CK_ULONG) sizeof(keyClass) },
{ CKA_KEY_TYPE, &keyType, (CK_ULONG) sizeof(keyType) },
{ CKA_TOKEN, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_PRIVATE, &falsevalue, (CK_ULONG) sizeof(falsevalue) },
{ CKA_VERIFY, &truevalue, (CK_ULONG) sizeof(truevalue) },
{ CKA_EC_PARAMS, NULL, 0 },
{ CKA_EC_POINT, NULL, 0 }
};
CK_ATTRIBUTE *attr;
CK_BYTE digest[ISC_SHA384_DIGESTLENGTH];
CK_ULONG dgstlen;
pk11_context_t *pk11_ctx = dctx->ctxdata.pk11_ctx;
dst_key_t *key = dctx->key;
pk11_object_t *ec = key->keydata.pkey;
isc_result_t ret = ISC_R_SUCCESS;
unsigned int i;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(ec != NULL);
if (key->key_alg == DST_ALG_ECDSA256)
dgstlen = ISC_SHA256_DIGESTLENGTH;
else
dgstlen = ISC_SHA384_DIGESTLENGTH;
PK11_RET(pkcs_C_DigestFinal,
(pk11_ctx->session, digest, &dgstlen),
ISC_R_FAILURE);
for (attr = pk11_attribute_first(ec);
attr != NULL;
attr = pk11_attribute_next(ec, attr))
switch (attr->type) {
case CKA_EC_PARAMS:
INSIST(keyTemplate[5].type == attr->type);
keyTemplate[5].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[5].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[5].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[5].ulValueLen = attr->ulValueLen;
break;
case CKA_EC_POINT:
INSIST(keyTemplate[6].type == attr->type);
keyTemplate[6].pValue = isc_mem_get(dctx->mctx,
attr->ulValueLen);
if (keyTemplate[6].pValue == NULL)
DST_RET(ISC_R_NOMEMORY);
memmove(keyTemplate[6].pValue, attr->pValue,
attr->ulValueLen);
keyTemplate[6].ulValueLen = attr->ulValueLen;
break;
}
pk11_ctx->object = CK_INVALID_HANDLE;
pk11_ctx->ontoken = ISC_FALSE;
PK11_RET(pkcs_C_CreateObject,
(pk11_ctx->session,
keyTemplate, (CK_ULONG) 7,
&hKey),
ISC_R_FAILURE);
PK11_RET(pkcs_C_VerifyInit,
(pk11_ctx->session, &mech, hKey),
ISC_R_FAILURE);
PK11_RET(pkcs_C_Verify,
(pk11_ctx->session,
digest, dgstlen,
(CK_BYTE_PTR) sig->base, (CK_ULONG) sig->length),
DST_R_VERIFYFAILURE);
err:
if (hKey != CK_INVALID_HANDLE)
(void) pkcs_C_DestroyObject(pk11_ctx->session, hKey);
for (i = 5; i <= 6; i++)
if (keyTemplate[i].pValue != NULL) {
memset(keyTemplate[i].pValue, 0,
keyTemplate[i].ulValueLen);
isc_mem_put(dctx->mctx,
keyTemplate[i].pValue,
keyTemplate[i].ulValueLen);
}
pk11_return_session(pk11_ctx);
memset(pk11_ctx, 0, sizeof(*pk11_ctx));
isc_mem_put(dctx->mctx, pk11_ctx, sizeof(*pk11_ctx));
dctx->ctxdata.pk11_ctx = NULL;
return (ret);
}
