* https://www.openssl.org/source/license.html
*/
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
#include <stdlib.h>
#include <openssl/engine.h>
#include <openssl/x509v3.h>
#include <openssl/core_names.h>
#include <openssl/dh.h>
+#include <openssl/rsa.h>
#include "internal/cryptlib.h"
-#include "internal/asn1_int.h"
-#include "internal/evp_int.h"
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
#include "internal/numbers.h"
#include "internal/provider.h"
-#include "evp_locl.h"
+#include "evp_local.h"
+#ifndef FIPS_MODE
+
+typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
/* This array needs to be in order of NIDs */
-static const EVP_PKEY_METHOD *standard_methods[] = {
-#ifndef OPENSSL_NO_RSA
- &rsa_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_DH
- &dh_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_DSA
- &dsa_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_EC
- &ec_pkey_meth,
-#endif
- &hmac_pkey_meth,
-#ifndef OPENSSL_NO_CMAC
- &cmac_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_RSA
- &rsa_pss_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_DH
- &dhx_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_SCRYPT
- &scrypt_pkey_meth,
-#endif
- &tls1_prf_pkey_meth,
-#ifndef OPENSSL_NO_EC
- &ecx25519_pkey_meth,
- &ecx448_pkey_meth,
-#endif
- &hkdf_pkey_meth,
-#ifndef OPENSSL_NO_POLY1305
- &poly1305_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_SIPHASH
- &siphash_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_EC
- &ed25519_pkey_meth,
- &ed448_pkey_meth,
-#endif
-#ifndef OPENSSL_NO_SM2
- &sm2_pkey_meth,
-#endif
+static pmeth_fn standard_methods[] = {
+# ifndef OPENSSL_NO_RSA
+ rsa_pkey_method,
+# endif
+# ifndef OPENSSL_NO_DH
+ dh_pkey_method,
+# endif
+# ifndef OPENSSL_NO_DSA
+ dsa_pkey_method,
+# endif
+# ifndef OPENSSL_NO_EC
+ ec_pkey_method,
+# endif
+ hmac_pkey_method,
+# ifndef OPENSSL_NO_CMAC
+ cmac_pkey_method,
+# endif
+# ifndef OPENSSL_NO_RSA
+ rsa_pss_pkey_method,
+# endif
+# ifndef OPENSSL_NO_DH
+ dhx_pkey_method,
+# endif
+# ifndef OPENSSL_NO_SCRYPT
+ scrypt_pkey_method,
+# endif
+ tls1_prf_pkey_method,
+# ifndef OPENSSL_NO_EC
+ ecx25519_pkey_method,
+ ecx448_pkey_method,
+# endif
+ hkdf_pkey_method,
+# ifndef OPENSSL_NO_POLY1305
+ poly1305_pkey_method,
+# endif
+# ifndef OPENSSL_NO_SIPHASH
+ siphash_pkey_method,
+# endif
+# ifndef OPENSSL_NO_EC
+ ed25519_pkey_method,
+ ed448_pkey_method,
+# endif
+# ifndef OPENSSL_NO_SM2
+ sm2_pkey_method,
+# endif
};
-DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
- pmeth);
+DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
+
+static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
+{
+ return ((*a)->pkey_id - ((**b)())->pkey_id);
+}
+
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
const EVP_PKEY_METHOD *const *b)
return ((*a)->pkey_id - (*b)->pkey_id);
}
-IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
- pmeth);
-
const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
{
+ pmeth_fn *ret;
EVP_PKEY_METHOD tmp;
- const EVP_PKEY_METHOD *t = &tmp, **ret;
+ const EVP_PKEY_METHOD *t = &tmp;
+
tmp.pkey_id = type;
if (app_pkey_methods) {
int idx;
if (idx >= 0)
return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
}
- ret = OBJ_bsearch_pmeth(&t, standard_methods,
- sizeof(standard_methods) /
- sizeof(EVP_PKEY_METHOD *));
- if (!ret || !*ret)
+ ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
+ sizeof(standard_methods) /
+ sizeof(pmeth_fn));
+ if (ret == NULL || *ret == NULL)
return NULL;
- return *ret;
+ return (**ret)();
}
-static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
+EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
+{
+ EVP_PKEY_METHOD *pmeth;
+
+ pmeth = OPENSSL_zalloc(sizeof(*pmeth));
+ if (pmeth == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ pmeth->pkey_id = id;
+ pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
+ return pmeth;
+}
+#endif /* FIPS_MODE */
+
+static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
+ EVP_PKEY *pkey, ENGINE *e,
+ const char *name, const char *propquery,
+ int id)
+
{
EVP_PKEY_CTX *ret;
const EVP_PKEY_METHOD *pmeth = NULL;
if (pkey == NULL && e == NULL && id == -1)
goto common;
+ /*
+ * If the key doesn't contain anything legacy, then it must be provided,
+ * so we extract the necessary information and use that.
+ */
+ if (pkey != NULL && pkey->ameth == NULL) {
+ /* If we have an engine, something went wrong somewhere... */
+ if (!ossl_assert(e == NULL))
+ return NULL;
+ name = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
+ /*
+ * TODO: I wonder if the EVP_PKEY should have the name and propquery
+ * that were used when building it.... /RL
+ */
+ goto common;
+ }
+#ifndef FIPS_MODE
/* TODO(3.0) Legacy code should be removed when all is provider based */
/* BEGIN legacy */
if (id == -1) {
if (pkey == NULL)
- return 0;
+ return NULL;
id = pkey->type;
}
-#ifndef OPENSSL_NO_ENGINE
+
+ /*
+ * Here, we extract what information we can for the purpose of
+ * supporting usage with implementations from providers, to make
+ * for a smooth transition from legacy stuff to provider based stuff.
+ *
+ * If an engine is given, this is entirely legacy, and we should not
+ * pretend anything else, so we only set the name when no engine is
+ * given. If both are already given, someone made a mistake, and
+ * since that can only happen internally, it's safe to make an
+ * assertion.
+ */
+ if (!ossl_assert(e == NULL || name == NULL))
+ return NULL;
+ if (e == NULL)
+ name = OBJ_nid2sn(id);
+
+# ifndef OPENSSL_NO_ENGINE
if (e == NULL && pkey != NULL)
e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
/* Try to find an ENGINE which implements this method */
if (e)
pmeth = ENGINE_get_pkey_meth(e, id);
else
-#endif
+# endif
pmeth = EVP_PKEY_meth_find(id);
if (pmeth == NULL) {
-#ifndef OPENSSL_NO_ENGINE
+# ifndef OPENSSL_NO_ENGINE
ENGINE_finish(e);
-#endif
+# endif
EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
return NULL;
}
/* END legacy */
-
+#endif /* FIPS_MODE */
common:
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
ENGINE_finish(e);
#endif
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
+ ret->libctx = libctx;
+ ret->keytype = name;
+ ret->propquery = propquery;
ret->engine = e;
ret->pmeth = pmeth;
ret->operation = EVP_PKEY_OP_UNDEFINED;
return ret;
}
-EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
+/*- All methods below can also be used in FIPS_MODE */
+
+EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
+ const char *name,
+ const char *propquery)
{
- EVP_PKEY_METHOD *pmeth;
+ return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
+}
- pmeth = OPENSSL_zalloc(sizeof(*pmeth));
- if (pmeth == NULL) {
- EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
- return NULL;
+EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey,
+ const char *propquery)
+{
+ return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
+}
+
+void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
+{
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
+ if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
+ ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
+ EVP_SIGNATURE_free(ctx->op.sig.signature);
+ ctx->op.sig.sigprovctx = NULL;
+ ctx->op.sig.signature = NULL;
+ } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
+ if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
+ ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
+ EVP_KEYEXCH_free(ctx->op.kex.exchange);
+ ctx->op.kex.exchprovctx = NULL;
+ ctx->op.kex.exchange = NULL;
+ }
+/* TODO(3.0): add dependancies and uncomment this when available for fips mode */
+#ifndef FIPS_MODE
+ else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
+ ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
+ EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
+ ctx->op.ciph.ciphprovctx = NULL;
+ ctx->op.ciph.cipher = NULL;
+ } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
+ evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
}
+#endif
+}
- pmeth->pkey_id = id;
- pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
- return pmeth;
+void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
+{
+ if (ctx == NULL)
+ return;
+ if (ctx->pmeth && ctx->pmeth->cleanup)
+ ctx->pmeth->cleanup(ctx);
+
+ evp_pkey_ctx_free_old_ops(ctx);
+ EVP_KEYMGMT_free(ctx->keymgmt);
+
+ EVP_PKEY_free(ctx->pkey);
+ EVP_PKEY_free(ctx->peerkey);
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
+ ENGINE_finish(ctx->engine);
+#endif
+ OPENSSL_free(ctx);
}
+#ifndef FIPS_MODE
+
void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
const EVP_PKEY_METHOD *meth)
{
EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
{
- return int_ctx_new(pkey, e, -1);
+ return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
{
- return int_ctx_new(NULL, e, id);
+ return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
EVP_PKEY_CTX *rctx;
if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
- && pctx->exchprovctx == NULL)
+ && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
+ && pctx->op.kex.exchprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
+ && pctx->op.sig.sigprovctx == NULL)))
return NULL;
-#ifndef OPENSSL_NO_ENGINE
+# ifndef OPENSSL_NO_ENGINE
/* Make sure it's safe to copy a pkey context using an ENGINE */
if (pctx->engine && !ENGINE_init(pctx->engine)) {
EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
return 0;
}
-#endif
+# endif
rctx = OPENSSL_zalloc(sizeof(*rctx));
if (rctx == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
EVP_PKEY_up_ref(pctx->pkey);
rctx->pkey = pctx->pkey;
rctx->operation = pctx->operation;
-
- if (pctx->exchprovctx != NULL) {
- if (!ossl_assert(pctx->exchange != NULL))
- return NULL;
- rctx->exchange = pctx->exchange;
- if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
- OPENSSL_free(rctx);
- return NULL;
+ rctx->libctx = pctx->libctx;
+ rctx->keytype = pctx->keytype;
+ rctx->propquery = pctx->propquery;
+
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
+ if (pctx->op.kex.exchange != NULL) {
+ rctx->op.kex.exchange = pctx->op.kex.exchange;
+ if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
+ OPENSSL_free(rctx);
+ return NULL;
+ }
}
- rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
- if (rctx->exchprovctx == NULL) {
- EVP_KEYEXCH_free(rctx->exchange);
- OPENSSL_free(rctx);
- return NULL;
+ if (pctx->op.kex.exchprovctx != NULL) {
+ if (!ossl_assert(pctx->op.kex.exchange != NULL))
+ return NULL;
+ rctx->op.kex.exchprovctx
+ = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
+ if (rctx->op.kex.exchprovctx == NULL) {
+ EVP_KEYEXCH_free(rctx->op.kex.exchange);
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ return rctx;
+ }
+ } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
+ if (pctx->op.sig.signature != NULL) {
+ rctx->op.sig.signature = pctx->op.sig.signature;
+ if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ }
+ if (pctx->op.sig.sigprovctx != NULL) {
+ if (!ossl_assert(pctx->op.sig.signature != NULL))
+ return NULL;
+ rctx->op.sig.sigprovctx
+ = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
+ if (rctx->op.sig.sigprovctx == NULL) {
+ EVP_SIGNATURE_free(rctx->op.sig.signature);
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ return rctx;
+ }
+ } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
+ if (pctx->op.ciph.cipher != NULL) {
+ rctx->op.ciph.cipher = pctx->op.ciph.cipher;
+ if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ }
+ if (pctx->op.ciph.ciphprovctx != NULL) {
+ if (!ossl_assert(pctx->op.ciph.cipher != NULL))
+ return NULL;
+ rctx->op.ciph.ciphprovctx
+ = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
+ if (rctx->op.ciph.ciphprovctx == NULL) {
+ EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ return rctx;
}
- return rctx;
}
rctx->pmeth = pctx->pmeth;
-#ifndef OPENSSL_NO_ENGINE
+# ifndef OPENSSL_NO_ENGINE
rctx->engine = pctx->engine;
-#endif
+# endif
if (pctx->peerkey)
EVP_PKEY_up_ref(pctx->peerkey);
const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
{
if (idx < OSSL_NELEM(standard_methods))
- return standard_methods[idx];
+ return (standard_methods[idx])();
if (app_pkey_methods == NULL)
return NULL;
idx -= OSSL_NELEM(standard_methods);
return NULL;
return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
}
+#endif
-void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
+int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
{
- if (ctx == NULL)
- return;
- if (ctx->pmeth && ctx->pmeth->cleanup)
- ctx->pmeth->cleanup(ctx);
-
- if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
- ctx->exchange->freectx(ctx->exchprovctx);
-
- EVP_KEYEXCH_free(ctx->exchange);
-
- if (ctx->sigprovctx != NULL && ctx->signature != NULL)
- ctx->signature->freectx(ctx->sigprovctx);
-
- EVP_SIGNATURE_free(ctx->signature);
-
- EVP_PKEY_free(ctx->pkey);
- EVP_PKEY_free(ctx->peerkey);
-#ifndef OPENSSL_NO_ENGINE
- ENGINE_finish(ctx->engine);
-#endif
- OPENSSL_free(ctx);
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchprovctx != NULL
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->set_ctx_params != NULL)
+ return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->set_ctx_params != NULL)
+ return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx != NULL
+ && ctx->op.ciph.cipher != NULL
+ && ctx->op.ciph.cipher->set_ctx_params != NULL)
+ return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->op.keymgmt.genctx != NULL
+ && ctx->keymgmt != NULL
+ && ctx->keymgmt->gen_set_params != NULL)
+ return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
+ params);
+ return 0;
}
+#ifndef FIPS_MODE
int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
{
- if (ctx->sigprovctx != NULL
- && ctx->signature != NULL
- && ctx->signature->get_ctx_params != NULL)
- return ctx->signature->get_ctx_params(ctx->sigprovctx, params);
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchprovctx != NULL
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->get_ctx_params != NULL)
+ return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->get_ctx_params != NULL)
+ return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx != NULL
+ && ctx->op.ciph.cipher != NULL
+ && ctx->op.ciph.cipher->get_ctx_params != NULL)
+ return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
+ params);
return 0;
}
const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
{
- if (ctx->signature != NULL
- && ctx->signature->gettable_ctx_params != NULL)
- return ctx->signature->gettable_ctx_params();
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->gettable_ctx_params != NULL)
+ return ctx->op.kex.exchange->gettable_ctx_params();
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->gettable_ctx_params != NULL)
+ return ctx->op.sig.signature->gettable_ctx_params();
+
+ if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.cipher != NULL
+ && ctx->op.ciph.cipher->gettable_ctx_params != NULL)
+ return ctx->op.ciph.cipher->gettable_ctx_params();
return NULL;
}
-int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
+const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
{
- if (ctx->exchprovctx != NULL
- && ctx->exchange != NULL
- && ctx->exchange->set_ctx_params != NULL)
- return ctx->exchange->set_ctx_params(ctx->exchprovctx, params);
- if (ctx->sigprovctx != NULL
- && ctx->signature != NULL
- && ctx->signature->set_ctx_params != NULL)
- return ctx->signature->set_ctx_params(ctx->sigprovctx, params);
- return 0;
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->settable_ctx_params != NULL)
+ return ctx->op.kex.exchange->settable_ctx_params();
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->settable_ctx_params != NULL)
+ return ctx->op.sig.signature->settable_ctx_params();
+ if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.cipher != NULL
+ && ctx->op.ciph.cipher->settable_ctx_params != NULL)
+ return ctx->op.ciph.cipher->settable_ctx_params();
+ if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->keymgmt != NULL
+ && ctx->keymgmt->gen_settable_params != NULL)
+ return evp_keymgmt_gen_settable_params(ctx->keymgmt);
+
+ return NULL;
}
-const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
+/*
+ * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
+ *
+ * Return 1 on success, 0 or negative for errors.
+ *
+ * In particular they return -2 if any of the params is not supported.
+ *
+ * They are not available in FIPS_MODE as they depend on
+ * - EVP_PKEY_CTX_{get,set}_params()
+ * - EVP_PKEY_CTX_{gettable,settable}_params()
+ *
+ */
+int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
{
- if (ctx->exchange != NULL
- && ctx->exchange->settable_ctx_params != NULL)
- return ctx->exchange->settable_ctx_params();
- if (ctx->signature != NULL
- && ctx->signature->settable_ctx_params != NULL)
- return ctx->signature->settable_ctx_params();
+ const OSSL_PARAM *p;
- return NULL;
+ if (ctx == NULL || params == NULL)
+ return 0;
+
+ for (p = params; p->key != NULL; p++) {
+ /* Check the ctx actually understands this parameter */
+ if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx),
+ p->key) == NULL )
+ return -2;
+ }
+
+ return EVP_PKEY_CTX_set_params(ctx, params);
+}
+
+int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
+{
+ const OSSL_PARAM *p;
+
+ if (ctx == NULL || params == NULL)
+ return 0;
+
+ for (p = params; p->key != NULL; p++ ) {
+ /* Check the ctx actually understands this parameter */
+ if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx),
+ p->key) == NULL )
+ return -2;
+ }
+
+ return EVP_PKEY_CTX_get_params(ctx, params);
}
-#ifndef OPENSSL_NO_DH
+# ifndef OPENSSL_NO_DH
int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
{
OSSL_PARAM dh_pad_params[2];
unsigned int upad = pad;
+ /* We use EVP_PKEY_CTX_ctrl return values */
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
+ }
+
/* TODO(3.0): Remove this eventually when no more legacy */
- if (ctx->exchprovctx == NULL)
+ if (ctx->op.kex.exchprovctx == NULL)
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
EVP_PKEY_CTRL_DH_PAD, pad, NULL);
return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
}
-#endif
+# endif
int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
{
char name[80] = "";
const EVP_MD *tmp;
- if (ctx == NULL) {
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
/* Uses the same return values as EVP_PKEY_CTX_ctrl */
return -2;
}
/* TODO(3.0): Remove this eventually when no more legacy */
- if (ctx->sigprovctx == NULL)
+ if (ctx->op.sig.sigprovctx == NULL)
return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
return 0;
- tmp = EVP_get_digestbyname(name);
+ tmp = evp_get_digestbyname_ex(ctx->libctx, name);
if (tmp == NULL)
return 0;
int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
{
- OSSL_PARAM sig_md_params[3], *p = sig_md_params;
- size_t mdsize;
+ OSSL_PARAM sig_md_params[2], *p = sig_md_params;
const char *name;
- if (ctx == NULL) {
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
/* Uses the same return values as EVP_PKEY_CTX_ctrl */
return -2;
}
/* TODO(3.0): Remove this eventually when no more legacy */
- if (ctx->sigprovctx == NULL)
+ if (ctx->op.sig.sigprovctx == NULL)
return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
EVP_PKEY_CTRL_MD, 0, (void *)(md));
if (md == NULL) {
name = "";
- mdsize = 0;
} else {
- mdsize = EVP_MD_size(md);
name = EVP_MD_name(md);
}
* Cast away the const. This is read
* only so should be safe
*/
- (char *)name,
- strlen(name) + 1);
- *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
- &mdsize);
+ (char *)name, 0);
*p++ = OSSL_PARAM_construct_end();
return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
int cmd, int p1, void *p2)
{
- switch (cmd) {
-#ifndef OPENSSL_NO_DH
- case EVP_PKEY_CTRL_DH_PAD:
- return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
-#endif
- case EVP_PKEY_CTRL_MD:
- return EVP_PKEY_CTX_set_signature_md(ctx, p2);
+ /*
+ * GOST CMS format is different for different cipher algorithms.
+ * Most of other algorithms don't have such a difference
+ * so this ctrl is just ignored.
+ */
+ if (cmd == EVP_PKEY_CTRL_CIPHER)
+ return -2;
+# ifndef OPENSSL_NO_DH
+ if (keytype == EVP_PKEY_DH) {
+ switch (cmd) {
+ case EVP_PKEY_CTRL_DH_PAD:
+ return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
+ }
+ }
+# endif
+# ifndef OPENSSL_NO_EC
+ if (keytype == EVP_PKEY_EC) {
+ switch (cmd) {
+ case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
+ if (p1 == -2) {
+ return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
+ } else if (p1 < -1 || p1 > 1) {
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ } else {
+ return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1);
+ }
+ case EVP_PKEY_CTRL_EC_KDF_TYPE:
+ if (p1 == -2) {
+ return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx);
+ } else {
+ return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1);
+ }
+ case EVP_PKEY_CTRL_GET_EC_KDF_MD:
+ return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2);
+ case EVP_PKEY_CTRL_EC_KDF_MD:
+ return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2);
+ case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
+ return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2);
+ case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
+ return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1);
+ case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
+ return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2);
+ case EVP_PKEY_CTRL_EC_KDF_UKM:
+ return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1);
+ }
+ }
+# endif
+ if (keytype == EVP_PKEY_RSA) {
+ switch (cmd) {
+ case EVP_PKEY_CTRL_RSA_OAEP_MD:
+ return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
+ case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
+ return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
+ case EVP_PKEY_CTRL_RSA_MGF1_MD:
+ return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
+ case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
+ return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1);
+ case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
+ return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2);
+ case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
+ return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1);
+ case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
+ return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2);
+ case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES:
+ return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1);
+ }
+ }
+ /*
+ * keytype == -1 is used when several key types share the same structure,
+ * or for generic controls that are the same across multiple key types.
+ */
+ if (keytype == -1) {
+ switch (cmd) {
+ case EVP_PKEY_CTRL_MD:
+ return EVP_PKEY_CTX_set_signature_md(ctx, p2);
+ case EVP_PKEY_CTRL_GET_MD:
+ return EVP_PKEY_CTX_get_signature_md(ctx, p2);
+ case EVP_PKEY_CTRL_RSA_PADDING:
+ return EVP_PKEY_CTX_set_rsa_padding(ctx, p1);
+ case EVP_PKEY_CTRL_GET_RSA_PADDING:
+ return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
+ case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
+ return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
+ case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
+ return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
+ case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
+ return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2);
+ case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
+ case EVP_PKEY_CTRL_PKCS7_DECRYPT:
+# ifndef OPENSSL_NO_CMS
+ case EVP_PKEY_CTRL_CMS_DECRYPT:
+ case EVP_PKEY_CTRL_CMS_ENCRYPT:
+# endif
+ if (ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return 1;
+ ERR_raise(ERR_LIB_EVP,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
}
return 0;
}
return -2;
}
- if (ctx->exchprovctx != NULL || ctx->sigprovctx != NULL)
+ if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->op.keymgmt.genctx != NULL))
return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
const char *value)
{
-#ifndef OPENSSL_NO_DH
- if (strcmp(name, "dh_pad") == 0) {
- int pad;
-
- pad = atoi(value);
- return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
- }
-#endif
- if (strcmp(name, "digest") == 0) {
- int ret;
- EVP_MD *md
- = EVP_MD_fetch(ossl_provider_library_context(ctx->signature->prov),
- value, NULL);
- if (md == NULL)
+ if (strcmp(name, "rsa_padding_mode") == 0)
+ name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
+ else if (strcmp(name, "rsa_mgf1_md") == 0)
+ name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST;
+ else if (strcmp(name, "rsa_oaep_md") == 0)
+ name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST;
+ else if (strcmp(name, "rsa_oaep_label") == 0)
+ name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL;
+ else if (strcmp(name, "rsa_pss_saltlen") == 0)
+ name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN;
+ else if (strcmp(name, "rsa_keygen_bits") == 0)
+ name = OSSL_PKEY_PARAM_RSA_BITS;
+ else if (strcmp(name, "rsa_keygen_pubexp") == 0)
+ name = OSSL_PKEY_PARAM_RSA_E;
+ else if (strcmp(name, "rsa_keygen_primes") == 0)
+ name = OSSL_PKEY_PARAM_RSA_PRIMES;
+# ifndef OPENSSL_NO_DH
+ else if (strcmp(name, "dh_pad") == 0)
+ name = OSSL_EXCHANGE_PARAM_PAD;
+# endif
+# ifndef OPENSSL_NO_EC
+ else if (strcmp(name, "ecdh_cofactor_mode") == 0)
+ name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
+ else if (strcmp(name, "ecdh_kdf_md") == 0)
+ name = OSSL_EXCHANGE_PARAM_KDF_DIGEST;
+# endif
+
+ {
+ /*
+ * TODO(3.0) reduce the code above to only translate known legacy
+ * string to the corresponding core name (see core_names.h), but
+ * otherwise leave it to this code block to do the actual work.
+ */
+ const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ int rv = 0;
+ int exists = 0;
+
+ if (!OSSL_PARAM_allocate_from_text(¶ms[0], settable, name, value,
+ strlen(value), &exists)) {
+ if (!exists) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
+ }
return 0;
- ret = EVP_PKEY_CTX_set_signature_md(ctx, md);
- EVP_MD_meth_free(md);
- return ret;
+ }
+ if (EVP_PKEY_CTX_set_params(ctx, params))
+ rv = 1;
+ OPENSSL_free(params[0].data);
+ return rv;
}
-
- return 0;
}
int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
return -2;
}
- if (ctx->exchprovctx != NULL || ctx->sigprovctx != NULL)
+ if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->op.keymgmt.genctx != NULL))
return legacy_ctrl_str_to_param(ctx, name, value);
if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
pmeth->ctrl_str = ctrl_str;
}
+void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
+ int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
+ const unsigned char *tbs, size_t tbslen))
+{
+ pmeth->digestsign = digestsign;
+}
+
+void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
+ int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
+ size_t siglen, const unsigned char *tbs,
+ size_t tbslen))
+{
+ pmeth->digestverify = digestverify;
+}
+
void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
int (*check) (EVP_PKEY *pkey))
{
*pctrl_str = pmeth->ctrl_str;
}
+void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
+ int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
+ const unsigned char *tbs, size_t tbslen))
+{
+ if (digestsign)
+ *digestsign = pmeth->digestsign;
+}
+
+void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
+ int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
+ size_t siglen, const unsigned char *tbs,
+ size_t tbslen))
+{
+ if (digestverify)
+ *digestverify = pmeth->digestverify;
+}
+
void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
int (**pcheck) (EVP_PKEY *pkey))
{
if (pdigest_custom != NULL)
*pdigest_custom = pmeth->digest_custom;
}
+
+#endif /* FIPS_MODE */
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