#ifndef OPENSSL_NO_CMS
# include <openssl/cms.h>
#endif
-#include "gost_params.h"
#include "gost_lcl.h"
#include "e_gost_err.h"
-static int pkey_bits_gost(const EVP_PKEY *pk);
+/*
+ * Pack bignum into byte buffer of given size, filling all leading bytes by
+ * zeros
+ */
+int store_bignum(BIGNUM *bn, unsigned char *buf, int len)
+{
+ int bytes = BN_num_bytes(bn);
+
+ if (bytes > len)
+ return 0;
+ memset(buf, 0, len);
+ BN_bn2bin(bn, buf + len - bytes);
+ return 1;
+}
-int gost94_nid_by_params(DSA *p)
+/* Convert byte buffer to bignum, skipping leading zeros*/
+BIGNUM *getbnfrombuf(const unsigned char *buf, size_t len)
{
- R3410_params *gost_params;
- BIGNUM *q = BN_new();
- for (gost_params = R3410_paramset; gost_params->nid != NID_undef;
- gost_params++) {
- BN_dec2bn(&q, gost_params->q);
- if (!BN_cmp(q, p->q))
- break;
+ BIGNUM *b;
+
+ while (*buf == 0 && len > 0) {
+ buf++;
+ len--;
}
- BN_free(q);
- return gost_params->nid;
+ if (len)
+ return BN_bin2bn(buf, len, NULL);
+ b = BN_new();
+ BN_zero(b);
+ return b;
+}
+
+static int pkey_bits_gost(const EVP_PKEY *pk)
+{
+ if (!pk)
+ return -1;
+
+ switch (EVP_PKEY_base_id(pk)) {
+ case NID_id_GostR3410_2001:
+ case NID_id_GostR3410_2012_256:
+ return 256;
+ case NID_id_GostR3410_2012_512:
+ return 512;
+ }
+
+ return -1;
}
static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key)
pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr));
gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_94_CryptoProParamSet);
break;
- case NID_id_GostR3410_94:
- pkey_param_nid = (int)gost94_nid_by_params(key_ptr);
- gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_94_CryptoProParamSet);
- break;
}
if (pkey_param_nid == NID_undef) {
}
}
return fill_GOST_EC_params(key_ptr, param_nid);
-
- case NID_id_GostR3410_94:
- if (!key_ptr) {
- key_ptr = DSA_new();
- if (!EVP_PKEY_assign(pkey, pkey_nid, key_ptr)) {
- DSA_free(key_ptr);
- break;
- }
- }
- return fill_GOST94_params(key_ptr, param_nid);
}
return 0;
GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, ERR_R_INTERNAL_ERROR);
return 0;
}
-
return gost_decode_nid_params(pkey, pkey_nid, param_nid);
}
static int gost_set_priv_key(EVP_PKEY *pkey, BIGNUM *priv)
{
switch (EVP_PKEY_base_id(pkey)) {
- case NID_id_GostR3410_94:
- {
- DSA *dsa = EVP_PKEY_get0(pkey);
- if (!dsa) {
- dsa = DSA_new();
- EVP_PKEY_assign(pkey, EVP_PKEY_base_id(pkey), dsa);
- }
- dsa->priv_key = BN_dup(priv);
- if (!EVP_PKEY_missing_parameters(pkey))
- gost94_compute_public(dsa);
- break;
- }
case NID_id_GostR3410_2012_512:
case NID_id_GostR3410_2012_256:
case NID_id_GostR3410_2001:
BIGNUM *gost_get0_priv_key(const EVP_PKEY *pkey)
{
switch (EVP_PKEY_base_id(pkey)) {
- case NID_id_GostR3410_94:
- {
- DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pkey);
- if (dsa)
- return dsa->priv_key;
- break;
- }
case NID_id_GostR3410_2012_512:
case NID_id_GostR3410_2012_256:
case NID_id_GostR3410_2001:
}
/* --------------------- free functions * ------------------------------*/
-static void pkey_free_gost94(EVP_PKEY *key)
-{
- if (key->pkey.dsa) {
- DSA_free(key->pkey.dsa);
- }
-}
-
static void pkey_free_gost_ec(EVP_PKEY *key)
{
- if (key->pkey.ec) {
- EC_KEY_free(key->pkey.ec);
- }
+ EC_KEY_free(key->pkey.ec);
}
/* ------------------ private key functions -----------------------------*/
}
octet = ASN1_STRING_new();
- M_ASN1_OCTET_STRING_set(octet, buf, key_len);
+ ASN1_OCTET_STRING_set(octet, buf, key_len);
priv_len = i2d_ASN1_OCTET_STRING(octet, &priv_buf);
ASN1_STRING_free(octet);
return 1;
}
-static int print_gost_94(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx, int type)
-{
- int param_nid = NID_undef;
-
- if (type == 2) {
- if (print_gost_priv(out, pkey, indent) == 0)
- return 0;
- }
- if (type >= 1) {
- BIGNUM *pubkey;
-
- pubkey = ((DSA *)EVP_PKEY_get0((EVP_PKEY *)pkey))->pub_key;
- BIO_indent(out, indent, 128);
- BIO_printf(out, "Public key: ");
- BN_print(out, pubkey);
- BIO_printf(out, "\n");
- }
-
- param_nid = gost94_nid_by_params(EVP_PKEY_get0((EVP_PKEY *)pkey));
- BIO_indent(out, indent, 128);
- BIO_printf(out, "Parameter set: %s\n", OBJ_nid2ln(param_nid));
- return 1;
-}
-
-static int param_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx)
-{
- return print_gost_94(out, pkey, indent, pctx, 0);
-}
-
-static int pub_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx)
-{
- return print_gost_94(out, pkey, indent, pctx, 1);
-}
-
-static int priv_print_gost94(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx)
-{
- return print_gost_94(out, pkey, indent, pctx, 2);
-}
-
static int print_gost_ec(BIO *out, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *pctx, int type)
{
}
/* ---------------------------------------------------------------------*/
-static int param_missing_gost94(const EVP_PKEY *pk)
-{
- const DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pk);
- if (!dsa)
- return 1;
- if (!dsa->q)
- return 1;
- return 0;
-}
-
static int param_missing_gost_ec(const EVP_PKEY *pk)
{
const EC_KEY *ec = EVP_PKEY_get0((EVP_PKEY *)pk);
return 0;
}
-static int param_copy_gost94(EVP_PKEY *to, const EVP_PKEY *from)
-{
- const DSA *dfrom = EVP_PKEY_get0((EVP_PKEY *)from);
- DSA *dto = EVP_PKEY_get0(to);
- if (EVP_PKEY_base_id(from) != EVP_PKEY_base_id(to)) {
- GOSTerr(GOST_F_PARAM_COPY_GOST94, GOST_R_INCOMPATIBLE_ALGORITHMS);
- return 0;
- }
- if (!dfrom) {
- GOSTerr(GOST_F_PARAM_COPY_GOST94, GOST_R_KEY_PARAMETERS_MISSING);
- return 0;
- }
- if (!dto) {
- dto = DSA_new();
- EVP_PKEY_assign(to, EVP_PKEY_base_id(from), dto);
- }
-#define COPYBIGNUM(a,b,x) if (a->x) BN_free(a->x); a->x=BN_dup(b->x);
- COPYBIGNUM(dto, dfrom, p)
- COPYBIGNUM(dto, dfrom, q)
- COPYBIGNUM(dto, dfrom, g)
-
- if (dto->priv_key)
- gost94_compute_public(dto);
- return 1;
-}
static int param_copy_gost_ec(EVP_PKEY *to, const EVP_PKEY *from)
{
return 1;
}
-static int param_cmp_gost94(const EVP_PKEY *a, const EVP_PKEY *b)
-{
- const DSA *da = EVP_PKEY_get0((EVP_PKEY *)a);
- const DSA *db = EVP_PKEY_get0((EVP_PKEY *)b);
- if (!da || !db)
- return 0;
- return (BN_cmp(da->q, db->q) == 0) ? 1 : 0;
-}
-
static int param_cmp_gost_ec(const EVP_PKEY *a, const EVP_PKEY *b)
{
const EC_GROUP *group_a, *group_b;
}
/* ---------- Public key functions * --------------------------------------*/
-static int pub_decode_gost94(EVP_PKEY *pk, X509_PUBKEY *pub)
-{
- X509_ALGOR *palg = NULL;
- const unsigned char *pubkey_buf = NULL;
- unsigned char *databuf;
- ASN1_OBJECT *palgobj = NULL;
- int pub_len, i, j;
- DSA *dsa;
- ASN1_OCTET_STRING *octet = NULL;
-
- if (!X509_PUBKEY_get0_param(&palgobj, &pubkey_buf, &pub_len, &palg, pub))
- return 0;
- EVP_PKEY_assign(pk, OBJ_obj2nid(palgobj), NULL);
- if (!decode_gost_algor_params(pk, palg))
- return 0;
- octet = d2i_ASN1_OCTET_STRING(NULL, &pubkey_buf, pub_len);
- if (!octet) {
- GOSTerr(GOST_F_PUB_DECODE_GOST94, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- databuf = OPENSSL_malloc(octet->length);
- if (databuf == NULL) {
- GOSTerr(GOST_F_PUB_DECODE_GOST94, ERR_R_MALLOC_FAILURE);
- ASN1_OCTET_STRING_free(octet);
- return 0;
- }
- for (i = 0, j = octet->length - 1; i < octet->length; i++, j--) {
- databuf[j] = octet->data[i];
- }
- dsa = EVP_PKEY_get0(pk);
- dsa->pub_key = BN_bin2bn(databuf, octet->length, NULL);
- ASN1_OCTET_STRING_free(octet);
- OPENSSL_free(databuf);
- return 1;
-
-}
-
-static int pub_encode_gost94(X509_PUBKEY *pub, const EVP_PKEY *pk)
-{
- ASN1_OBJECT *algobj = NULL;
- ASN1_OCTET_STRING *octet = NULL;
- void *pval = NULL;
- unsigned char *buf = NULL, *databuf, *sptr;
- int i, j, data_len, ret = 0;
-
- int ptype = V_ASN1_UNDEF;
- DSA *dsa = EVP_PKEY_get0((EVP_PKEY *)pk);
- algobj = OBJ_nid2obj(EVP_PKEY_base_id(pk));
- if (pk->save_parameters) {
- ASN1_STRING *params = encode_gost_algor_params(pk);
- pval = params;
- ptype = V_ASN1_SEQUENCE;
- }
- data_len = BN_num_bytes(dsa->pub_key);
- databuf = OPENSSL_malloc(data_len);
- if (databuf == NULL) {
- GOSTerr(GOST_F_PUB_ENCODE_GOST94, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- BN_bn2bin(dsa->pub_key, databuf);
- octet = ASN1_OCTET_STRING_new();
- if (octet == NULL) {
- GOSTerr(GOST_F_PUB_ENCODE_GOST94, ERR_R_MALLOC_FAILURE);
- OPENSSL_free(databuf);
- return 0;
- }
- ASN1_STRING_set(octet, NULL, data_len);
- sptr = ASN1_STRING_data(octet);
- for (i = 0, j = data_len - 1; i < data_len; i++, j--) {
- sptr[i] = databuf[j];
- }
- OPENSSL_free(databuf);
- ret = i2d_ASN1_OCTET_STRING(octet, &buf);
- ASN1_BIT_STRING_free(octet);
- if (ret < 0)
- return 0;
- return X509_PUBKEY_set0_param(pub, algobj, ptype, pval, buf, ret);
-}
-
static int pub_decode_gost_ec(EVP_PKEY *pk, X509_PUBKEY *pub)
{
X509_ALGOR *palg = NULL;
return X509_PUBKEY_set0_param(pub, algobj, ptype, pval, buf, ret);
}
-static int pub_cmp_gost94(const EVP_PKEY *a, const EVP_PKEY *b)
-{
- const DSA *da = EVP_PKEY_get0((EVP_PKEY *)a);
- const DSA *db = EVP_PKEY_get0((EVP_PKEY *)b);
- if (!da || !db)
- return 0;
-
- if (!da->pub_key || !db->pub_key)
- return 0;
-
- return (BN_cmp(da->pub_key, db->pub_key) == 0) ? 1 : 0;
-}
-
static int pub_cmp_gost_ec(const EVP_PKEY *a, const EVP_PKEY *b)
{
const EC_KEY *ea = EVP_PKEY_get0((EVP_PKEY *)a);
return -1;
}
-static int pkey_bits_gost(const EVP_PKEY *pk)
-{
- if (!pk)
- return -1;
-
- switch (EVP_PKEY_base_id(pk)) {
- case NID_id_GostR3410_94:
- case NID_id_GostR3410_2001:
- case NID_id_GostR3410_2012_256:
- return 256;
- case NID_id_GostR3410_2012_512:
- return 512;
- }
-
- return -1;
-}
-
/* ---------------------- ASN1 METHOD for GOST MAC -------------------*/
static void mackey_free_gost(EVP_PKEY *pk)
{
- if (pk->pkey.ptr) {
- OPENSSL_free(pk->pkey.ptr);
- }
+ OPENSSL_free(pk->pkey.ptr);
}
static int mac_ctrl_gost(EVP_PKEY *pkey, int op, long arg1, void *arg2)
return -2;
}
-static int gost94_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
-{
- int nid = gost94_nid_by_params(EVP_PKEY_get0((EVP_PKEY *)pkey));
- return i2d_ASN1_OBJECT(OBJ_nid2obj(nid), pder);
-}
-
static int gost2001_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
{
int nid =
return i2d_ASN1_OBJECT(OBJ_nid2obj(nid), pder);
}
-static int gost94_param_decode(EVP_PKEY *pkey, const unsigned char **pder,
- int derlen)
-{
- ASN1_OBJECT *obj = NULL;
- int nid;
- if (d2i_ASN1_OBJECT(&obj, pder, derlen) == NULL) {
- return 0;
- }
- nid = OBJ_obj2nid(obj);
- ASN1_OBJECT_free(obj);
-
- return gost_decode_nid_params(pkey, NID_id_GostR3410_94, nid);
-}
-
static int gost2001_param_decode(EVP_PKEY *pkey, const unsigned char **pder,
int derlen)
{
if (!*ameth)
return 0;
switch (nid) {
- case NID_id_GostR3410_94:
- EVP_PKEY_asn1_set_free(*ameth, pkey_free_gost94);
- EVP_PKEY_asn1_set_private(*ameth,
- priv_decode_gost, priv_encode_gost,
- priv_print_gost94);
-
- EVP_PKEY_asn1_set_param(*ameth,
- gost94_param_decode, gost94_param_encode,
- param_missing_gost94, param_copy_gost94,
- param_cmp_gost94, param_print_gost94);
- EVP_PKEY_asn1_set_public(*ameth,
- pub_decode_gost94, pub_encode_gost94,
- pub_cmp_gost94, pub_print_gost94,
- pkey_size_gost, pkey_bits_gost);
-
- EVP_PKEY_asn1_set_ctrl(*ameth, pkey_ctrl_gost);
- break;
case NID_id_GostR3410_2001:
EVP_PKEY_asn1_set_free(*ameth, pkey_free_gost_ec);
EVP_PKEY_asn1_set_private(*ameth,
projects / openssl-gost / engine.git / blobdiff