/*
- * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/objects.h>
#include <openssl/evp.h>
#include "internal/cryptlib.h"
-#include "internal/evp_int.h"
+#include "crypto/evp.h"
#include "internal/provider.h"
-#include "evp_locl.h"
+#include "evp_local.h"
-static EVP_SIGNATURE *evp_signature_new(OSSL_PROVIDER *prov)
+static int evp_pkey_asym_cipher_init(EVP_PKEY_CTX *ctx, int operation)
{
- EVP_SIGNATURE *signature = OPENSSL_zalloc(sizeof(EVP_SIGNATURE));
+ int ret = 0;
+ void *provkey = NULL;
+ EVP_ASYM_CIPHER *cipher = NULL;
+ EVP_KEYMGMT *tmp_keymgmt = NULL;
+ const char *supported_ciph = NULL;
- signature->lock = CRYPTO_THREAD_lock_new();
- if (signature->lock == NULL) {
- OPENSSL_free(signature);
- return NULL;
+ if (ctx == NULL) {
+ EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
}
- signature->prov = prov;
- ossl_provider_up_ref(prov);
- signature->refcnt = 1;
- return signature;
-}
+ evp_pkey_ctx_free_old_ops(ctx);
+ ctx->operation = operation;
-static void *evp_signature_from_dispatch(const char *name,
- const OSSL_DISPATCH *fns,
- OSSL_PROVIDER *prov,
- void *vkeymgmt_data)
-{
/*
- * Signature functions cannot work without a key, and key management
- * from the same provider to manage its keys. We therefore fetch
- * a key management method using the same algorithm and properties
- * and pass that down to evp_generic_fetch to be passed on to our
- * evp_signature_from_dispatch, which will attach the key management
- * method to the newly created key exchange method as long as the
- * provider matches.
+ * TODO when we stop falling back to legacy, this and the ERR_pop_to_mark()
+ * calls can be removed.
*/
- struct keymgmt_data_st *keymgmt_data = vkeymgmt_data;
- EVP_KEYMGMT *keymgmt = EVP_KEYMGMT_fetch(keymgmt_data->ctx, name,
- keymgmt_data->properties);
- EVP_SIGNATURE *signature = NULL;
- int fncnt = 0;
-
- if (keymgmt == NULL || EVP_KEYMGMT_provider(keymgmt) != prov) {
- ERR_raise(ERR_LIB_EVP, EVP_R_NO_KEYMGMT_AVAILABLE);
- goto err;
- }
-
- if ((signature = evp_signature_new(prov)) == NULL
- || (signature->name = OPENSSL_strdup(name)) == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
- goto err;
- }
+ ERR_set_mark();
- signature->keymgmt = keymgmt;
- keymgmt = NULL; /* avoid double free on failure below */
+ if (ctx->engine != NULL || ctx->keytype == NULL)
+ goto legacy;
- for (; fns->function_id != 0; fns++) {
- switch (fns->function_id) {
- case OSSL_FUNC_SIGNATURE_NEWCTX:
- if (signature->newctx != NULL)
- break;
- signature->newctx = OSSL_get_OP_signature_newctx(fns);
- fncnt++;
- break;
- case OSSL_FUNC_SIGNATURE_SIGN_INIT:
- if (signature->sign_init != NULL)
- break;
- signature->sign_init = OSSL_get_OP_signature_sign_init(fns);
- fncnt++;
- break;
- case OSSL_FUNC_SIGNATURE_SIGN:
- if (signature->sign != NULL)
- break;
- signature->sign = OSSL_get_OP_signature_sign(fns);
- fncnt++;
- break;
- case OSSL_FUNC_SIGNATURE_FREECTX:
- if (signature->freectx != NULL)
- break;
- signature->freectx = OSSL_get_OP_signature_freectx(fns);
- fncnt++;
- break;
- case OSSL_FUNC_SIGNATURE_DUPCTX:
- if (signature->dupctx != NULL)
- break;
- signature->dupctx = OSSL_get_OP_signature_dupctx(fns);
- break;
- case OSSL_FUNC_SIGNATURE_SET_PARAMS:
- if (signature->set_params != NULL)
- break;
- signature->set_params = OSSL_get_OP_signature_set_params(fns);
- break;
- }
- }
- if (fncnt != 4) {
- /*
- * In order to be a consistent set of functions we must have at least
- * a complete set of "signature" functions: sign_init, sign, newctx,
- * and freectx. The dupctx function is optional.
- */
- ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS);
+ /*
+ * Ensure that the key is provided, either natively, or as a cached export.
+ * If not, go legacy
+ */
+ tmp_keymgmt = ctx->keymgmt;
+ provkey = evp_pkey_export_to_provider(ctx->pkey, ctx->libctx,
+ &tmp_keymgmt, ctx->propquery);
+ if (provkey == NULL)
+ goto legacy;
+ if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) {
+ ERR_clear_last_mark();
+ ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
goto err;
}
+ EVP_KEYMGMT_free(ctx->keymgmt);
+ ctx->keymgmt = tmp_keymgmt;
- return signature;
- err:
- EVP_SIGNATURE_free(signature);
- EVP_KEYMGMT_free(keymgmt);
- return NULL;
-}
-
-void EVP_SIGNATURE_free(EVP_SIGNATURE *signature)
-{
- if (signature != NULL) {
- int i;
-
- CRYPTO_DOWN_REF(&signature->refcnt, &i, signature->lock);
- if (i > 0)
- return;
- EVP_KEYMGMT_free(signature->keymgmt);
- ossl_provider_free(signature->prov);
- OPENSSL_free(signature->name);
- CRYPTO_THREAD_lock_free(signature->lock);
- OPENSSL_free(signature);
- }
-}
-
-int EVP_SIGNATURE_up_ref(EVP_SIGNATURE *signature)
-{
- int ref = 0;
-
- CRYPTO_UP_REF(&signature->refcnt, &ref, signature->lock);
- return 1;
-}
-
-OSSL_PROVIDER *EVP_SIGNATURE_provider(const EVP_SIGNATURE *signature)
-{
- return signature->prov;
-}
-
-EVP_SIGNATURE *EVP_SIGNATURE_fetch(OPENSSL_CTX *ctx, const char *algorithm,
- const char *properties)
-{
- struct keymgmt_data_st keymgmt_data;
+ if (ctx->keymgmt->query_operation_name != NULL)
+ supported_ciph =
+ ctx->keymgmt->query_operation_name(OSSL_OP_ASYM_CIPHER);
/*
- * A signature operation cannot work without a key, so we need key
- * management from the same provider to manage its keys.
+ * If we didn't get a supported ciph, assume there is one with the
+ * same name as the key type.
*/
- keymgmt_data.ctx = ctx;
- keymgmt_data.properties = properties;
- return evp_generic_fetch(ctx, OSSL_OP_SIGNATURE, algorithm, properties,
- evp_signature_from_dispatch, &keymgmt_data,
- (int (*)(void *))EVP_SIGNATURE_up_ref,
- (void (*)(void *))EVP_SIGNATURE_free);
-}
+ if (supported_ciph == NULL)
+ supported_ciph = ctx->keytype;
-int EVP_PKEY_sign_init_ex(EVP_PKEY_CTX *ctx, EVP_SIGNATURE *signature)
-{
- int ret;
- void *provkey = NULL;
+ /*
+ * Because we cleared out old ops, we shouldn't need to worry about
+ * checking if cipher is already there.
+ */
+ cipher =
+ EVP_ASYM_CIPHER_fetch(ctx->libctx, supported_ciph, ctx->propquery);
- if (ctx == NULL) {
- EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
+ if (cipher == NULL
+ || (EVP_KEYMGMT_provider(ctx->keymgmt)
+ != EVP_ASYM_CIPHER_provider(cipher))) {
+ /*
+ * We don't need to free ctx->keymgmt here, as it's not necessarily
+ * tied to this operation. It will be freed by EVP_PKEY_CTX_free().
+ */
+ EVP_ASYM_CIPHER_free(cipher);
+ goto legacy;
}
- ctx->operation = EVP_PKEY_OP_SIGN;
-
- if (ctx->engine != NULL)
- goto legacy;
+ /*
+ * TODO remove this when legacy is gone
+ * If we don't have the full support we need with provided methods,
+ * let's go see if legacy does.
+ */
+ ERR_pop_to_mark();
- if (signature != NULL) {
- if (!EVP_SIGNATURE_up_ref(signature))
- goto err;
- } else {
- int nid = ctx->pkey != NULL ? ctx->pkey->type : ctx->pmeth->pkey_id;
+ /* No more legacy from here down to legacy: */
- /*
- * TODO(3.0): Check for legacy handling. Remove this once all all
- * algorithms are moved to providers.
- */
- if (ctx->pkey != NULL) {
- switch (ctx->pkey->type) {
- default:
- goto legacy;
- }
- signature = EVP_SIGNATURE_fetch(NULL, OBJ_nid2sn(nid), NULL);
- } else {
- goto legacy;
- }
+ ctx->op.ciph.cipher = cipher;
+ ctx->op.ciph.ciphprovctx = cipher->newctx(ossl_provider_ctx(cipher->prov));
+ if (ctx->op.ciph.ciphprovctx == NULL) {
+ /* The provider key can stay in the cache */
+ EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ goto err;
+ }
- if (signature == NULL) {
- EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ switch (operation) {
+ case EVP_PKEY_OP_ENCRYPT:
+ if (cipher->encrypt_init == NULL) {
+ EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ ret = -2;
goto err;
}
- }
-
- if (ctx->sigprovctx != NULL && ctx->signature != NULL)
- ctx->signature->freectx(ctx->sigprovctx);
- EVP_SIGNATURE_free(ctx->signature);
- ctx->signature = signature;
- if (ctx->pkey != NULL) {
- provkey = evp_keymgmt_export_to_provider(ctx->pkey, signature->keymgmt);
- if (provkey == NULL) {
- EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ ret = cipher->encrypt_init(ctx->op.ciph.ciphprovctx, provkey);
+ break;
+ case EVP_PKEY_OP_DECRYPT:
+ if (cipher->decrypt_init == NULL) {
+ EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ ret = -2;
goto err;
}
- }
- ctx->sigprovctx = signature->newctx(ossl_provider_ctx(signature->prov));
- if (ctx->sigprovctx == NULL) {
- /* The provider key can stay in the cache */
+ ret = cipher->decrypt_init(ctx->op.ciph.ciphprovctx, provkey);
+ break;
+ default:
EVPerr(0, EVP_R_INITIALIZATION_ERROR);
goto err;
}
- ret = signature->sign_init(ctx->sigprovctx, provkey);
- return ret ? 1 : 0;
- err:
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return 0;
+ if (ret <= 0)
+ goto err;
+ return 1;
legacy:
- if (ctx->pmeth == NULL || ctx->pmeth->sign == NULL) {
+ /*
+ * TODO remove this when legacy is gone
+ * If we don't have the full support we need with provided methods,
+ * let's go see if legacy does.
+ */
+ ERR_pop_to_mark();
+
+ if (ctx->pmeth == NULL || ctx->pmeth->encrypt == NULL) {
EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
+ switch(ctx->operation) {
+ case EVP_PKEY_OP_ENCRYPT:
+ if (ctx->pmeth->encrypt_init == NULL)
+ return 1;
+ ret = ctx->pmeth->encrypt_init(ctx);
+ break;
+ case EVP_PKEY_OP_DECRYPT:
+ if (ctx->pmeth->decrypt_init == NULL)
+ return 1;
+ ret = ctx->pmeth->decrypt_init(ctx);
+ break;
+ default:
+ EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ ret = -1;
+ }
- if (ctx->pmeth->sign_init == NULL)
- return 1;
- ret = ctx->pmeth->sign_init(ctx);
- if (ret <= 0)
+ err:
+ if (ret <= 0) {
+ evp_pkey_ctx_free_old_ops(ctx);
ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ }
return ret;
}
-int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
+int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
{
- return EVP_PKEY_sign_init_ex(ctx, NULL);
+ return evp_pkey_asym_cipher_init(ctx, EVP_PKEY_OP_ENCRYPT);
}
-int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
- unsigned char *sig, size_t *siglen,
- const unsigned char *tbs, size_t tbslen)
+int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
{
int ret;
return -2;
}
- if (ctx->operation != EVP_PKEY_OP_SIGN) {
+ if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
return -1;
}
- if (ctx->sigprovctx == NULL)
+ if (ctx->op.ciph.ciphprovctx == NULL)
goto legacy;
- ret = ctx->signature->sign(ctx->sigprovctx, sig, siglen, SIZE_MAX,
- tbs, tbslen);
-
+ ret = ctx->op.ciph.cipher->encrypt(ctx->op.ciph.ciphprovctx, out, outlen,
+ (out == NULL ? 0 : *outlen), in, inlen);
return ret;
+
legacy:
-
- if (ctx->pmeth == NULL || ctx->pmeth->sign == NULL) {
- EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ if (ctx->pmeth == NULL || ctx->pmeth->encrypt == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
+ return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
+}
- M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
- return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
+int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
+{
+ return evp_pkey_asym_cipher_init(ctx, EVP_PKEY_OP_DECRYPT);
}
-int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
+int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
{
int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+
+ if (ctx == NULL) {
+ EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
- ctx->operation = EVP_PKEY_OP_VERIFY;
- if (!ctx->pmeth->verify_init)
- return 1;
- ret = ctx->pmeth->verify_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
+
+ if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
+ EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ goto legacy;
+
+ ret = ctx->op.ciph.cipher->decrypt(ctx->op.ciph.ciphprovctx, out, outlen,
+ (out == NULL ? 0 : *outlen), in, inlen);
return ret;
-}
-int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
- const unsigned char *sig, size_t siglen,
- const unsigned char *tbs, size_t tbslen)
-{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY,
+ legacy:
+ if (ctx->pmeth == NULL || ctx->pmeth->decrypt == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT,
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
- if (ctx->operation != EVP_PKEY_OP_VERIFY) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
+ return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
}
-int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
+
+static EVP_ASYM_CIPHER *evp_asym_cipher_new(OSSL_PROVIDER *prov)
{
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
+ EVP_ASYM_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_ASYM_CIPHER));
+
+ if (cipher == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ return NULL;
}
- ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
- if (!ctx->pmeth->verify_recover_init)
- return 1;
- ret = ctx->pmeth->verify_recover_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
+
+ cipher->lock = CRYPTO_THREAD_lock_new();
+ if (cipher->lock == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(cipher);
+ return NULL;
+ }
+ cipher->prov = prov;
+ ossl_provider_up_ref(prov);
+ cipher->refcnt = 1;
+
+ return cipher;
}
-int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
- unsigned char *rout, size_t *routlen,
- const unsigned char *sig, size_t siglen)
+static void *evp_asym_cipher_from_dispatch(int name_id,
+ const OSSL_DISPATCH *fns,
+ OSSL_PROVIDER *prov)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
+ EVP_ASYM_CIPHER *cipher = NULL;
+ int ctxfncnt = 0, encfncnt = 0, decfncnt = 0;
+ int gparamfncnt = 0, sparamfncnt = 0;
+
+ if ((cipher = evp_asym_cipher_new(prov)) == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ goto err;
}
- if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
+
+ cipher->name_id = name_id;
+
+ for (; fns->function_id != 0; fns++) {
+ switch (fns->function_id) {
+ case OSSL_FUNC_ASYM_CIPHER_NEWCTX:
+ if (cipher->newctx != NULL)
+ break;
+ cipher->newctx = OSSL_get_OP_asym_cipher_newctx(fns);
+ ctxfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_ENCRYPT_INIT:
+ if (cipher->encrypt_init != NULL)
+ break;
+ cipher->encrypt_init = OSSL_get_OP_asym_cipher_encrypt_init(fns);
+ encfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_ENCRYPT:
+ if (cipher->encrypt != NULL)
+ break;
+ cipher->encrypt = OSSL_get_OP_asym_cipher_encrypt(fns);
+ encfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_DECRYPT_INIT:
+ if (cipher->decrypt_init != NULL)
+ break;
+ cipher->decrypt_init = OSSL_get_OP_asym_cipher_decrypt_init(fns);
+ decfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_DECRYPT:
+ if (cipher->decrypt != NULL)
+ break;
+ cipher->decrypt = OSSL_get_OP_asym_cipher_decrypt(fns);
+ decfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_FREECTX:
+ if (cipher->freectx != NULL)
+ break;
+ cipher->freectx = OSSL_get_OP_asym_cipher_freectx(fns);
+ ctxfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_DUPCTX:
+ if (cipher->dupctx != NULL)
+ break;
+ cipher->dupctx = OSSL_get_OP_asym_cipher_dupctx(fns);
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_GET_CTX_PARAMS:
+ if (cipher->get_ctx_params != NULL)
+ break;
+ cipher->get_ctx_params
+ = OSSL_get_OP_asym_cipher_get_ctx_params(fns);
+ gparamfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_GETTABLE_CTX_PARAMS:
+ if (cipher->gettable_ctx_params != NULL)
+ break;
+ cipher->gettable_ctx_params
+ = OSSL_get_OP_asym_cipher_gettable_ctx_params(fns);
+ gparamfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_SET_CTX_PARAMS:
+ if (cipher->set_ctx_params != NULL)
+ break;
+ cipher->set_ctx_params
+ = OSSL_get_OP_asym_cipher_set_ctx_params(fns);
+ sparamfncnt++;
+ break;
+ case OSSL_FUNC_ASYM_CIPHER_SETTABLE_CTX_PARAMS:
+ if (cipher->settable_ctx_params != NULL)
+ break;
+ cipher->settable_ctx_params
+ = OSSL_get_OP_asym_cipher_settable_ctx_params(fns);
+ sparamfncnt++;
+ break;
+ }
}
- M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
- return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
+ if (ctxfncnt != 2
+ || (encfncnt != 0 && encfncnt != 2)
+ || (decfncnt != 0 && decfncnt != 2)
+ || (encfncnt != 2 && decfncnt != 2)
+ || (gparamfncnt != 0 && gparamfncnt != 2)
+ || (sparamfncnt != 0 && sparamfncnt != 2)) {
+ /*
+ * In order to be a consistent set of functions we must have at least
+ * a set of context functions (newctx and freectx) as well as a pair of
+ * "cipher" functions: (encrypt_init, encrypt) or
+ * (decrypt_init decrypt). set_ctx_params and settable_ctx_params are
+ * optional, but if one of them is present then the other one must also
+ * be present. The same applies to get_ctx_params and
+ * gettable_ctx_params. The dupctx function is optional.
+ */
+ ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS);
+ goto err;
+ }
+
+ return cipher;
+ err:
+ EVP_ASYM_CIPHER_free(cipher);
+ return NULL;
}
-int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
+void EVP_ASYM_CIPHER_free(EVP_ASYM_CIPHER *cipher)
{
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
+ if (cipher != NULL) {
+ int i;
+
+ CRYPTO_DOWN_REF(&cipher->refcnt, &i, cipher->lock);
+ if (i > 0)
+ return;
+ ossl_provider_free(cipher->prov);
+ CRYPTO_THREAD_lock_free(cipher->lock);
+ OPENSSL_free(cipher);
}
- ctx->operation = EVP_PKEY_OP_ENCRYPT;
- if (!ctx->pmeth->encrypt_init)
- return 1;
- ret = ctx->pmeth->encrypt_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
}
-int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen)
+int EVP_ASYM_CIPHER_up_ref(EVP_ASYM_CIPHER *cipher)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
- return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
+ int ref = 0;
+
+ CRYPTO_UP_REF(&cipher->refcnt, &ref, cipher->lock);
+ return 1;
}
-int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
+OSSL_PROVIDER *EVP_ASYM_CIPHER_provider(const EVP_ASYM_CIPHER *cipher)
{
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_DECRYPT;
- if (!ctx->pmeth->decrypt_init)
- return 1;
- ret = ctx->pmeth->decrypt_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
+ return cipher->prov;
}
-int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen)
+EVP_ASYM_CIPHER *EVP_ASYM_CIPHER_fetch(OPENSSL_CTX *ctx, const char *algorithm,
+ const char *properties)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
- return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
+ return evp_generic_fetch(ctx, OSSL_OP_ASYM_CIPHER, algorithm, properties,
+ evp_asym_cipher_from_dispatch,
+ (int (*)(void *))EVP_ASYM_CIPHER_up_ref,
+ (void (*)(void *))EVP_ASYM_CIPHER_free);
+}
+
+int EVP_ASYM_CIPHER_is_a(const EVP_ASYM_CIPHER *cipher, const char *name)
+{
+ return evp_is_a(cipher->prov, cipher->name_id, NULL, name);
+}
+
+int EVP_ASYM_CIPHER_number(const EVP_ASYM_CIPHER *cipher)
+{
+ return cipher->name_id;
}
+
+void EVP_ASYM_CIPHER_do_all_provided(OPENSSL_CTX *libctx,
+ void (*fn)(EVP_ASYM_CIPHER *cipher,
+ void *arg),
+ void *arg)
+{
+ evp_generic_do_all(libctx, OSSL_OP_ASYM_CIPHER,
+ (void (*)(void *, void *))fn, arg,
+ evp_asym_cipher_from_dispatch,
+ (void (*)(void *))EVP_ASYM_CIPHER_free);
+}
+
+
+void EVP_ASYM_CIPHER_names_do_all(const EVP_ASYM_CIPHER *cipher,
+ void (*fn)(const char *name, void *data),
+ void *data)
+{
+ if (cipher->prov != NULL)
+ evp_names_do_all(cipher->prov, cipher->name_id, fn, data);
+}
+
projects / openssl.git / blobdiff