return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
}
-int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
+static int evp_pkey_asym_cipher_init(EVP_PKEY_CTX *ctx, int operation)
{
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ int ret = 0;
+ void *provkey = NULL;
+ EVP_ASYM_CIPHER *cipher = NULL;
+
+ if (ctx == NULL) {
+ EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
- ctx->operation = EVP_PKEY_OP_ENCRYPT;
- if (!ctx->pmeth->encrypt_init)
- return 1;
- ret = ctx->pmeth->encrypt_init(ctx);
+
+ evp_pkey_ctx_free_old_ops(ctx);
+ ctx->operation = operation;
+
+ if (ctx->algorithm == NULL || ctx->engine != NULL)
+ goto legacy;
+
+ /*
+ * Because we cleared out old ops, we shouldn't need to worry about
+ * checking if exchange is already there. Keymgmt is a different
+ * matter, as it isn't tied to a specific EVP_PKEY op.
+ */
+ cipher = EVP_ASYM_CIPHER_fetch(ctx->libctx, ctx->algorithm, ctx->propquery);
+ if (cipher != NULL && ctx->keymgmt == NULL) {
+ int name_id = EVP_ASYM_CIPHER_number(cipher);
+
+ ctx->keymgmt =
+ evp_keymgmt_fetch_by_number(ctx->libctx, name_id, ctx->propquery);
+ }
+
+ if (ctx->keymgmt == NULL
+ || cipher == NULL
+ || (EVP_KEYMGMT_provider(ctx->keymgmt)
+ != EVP_ASYM_CIPHER_provider(cipher))) {
+ /*
+ * We don't have the full support we need with provided methods,
+ * let's go see if legacy does. Also, 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->op.ciph.cipher = cipher;
+
+ if (ctx->pkey != NULL) {
+ provkey = evp_keymgmt_export_to_provider(ctx->pkey, ctx->keymgmt, 0);
+ if (provkey == NULL) {
+ EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ goto err;
+ }
+ }
+ 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;
+ }
+
+ 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;
+ }
+ 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;
+ }
+ ret = cipher->decrypt_init(ctx->op.ciph.ciphprovctx, provkey);
+ break;
+ default:
+ EVPerr(0, EVP_R_INITIALIZATION_ERROR);
+ goto err;
+ }
+
+ if (ret <= 0) {
+ cipher->freectx(ctx->op.ciph.ciphprovctx);
+ ctx->op.ciph.ciphprovctx = NULL;
+ goto err;
+ }
+ return 1;
+
+ legacy:
+ 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;
+ }
+
+ err:
if (ret <= 0)
ctx->operation = EVP_PKEY_OP_UNDEFINED;
return ret;
}
+int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
+{
+ return evp_pkey_asym_cipher_init(ctx, EVP_PKEY_OP_ENCRYPT);
+}
+
int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ int ret;
+
+ if (ctx == NULL) {
+ EVPerr(0, 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);
+ EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
return -1;
}
+
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ goto legacy;
+
+ 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->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);
}
int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
{
- 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 evp_pkey_asym_cipher_init(ctx, EVP_PKEY_OP_DECRYPT);
}
int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ int ret;
+
+ if (ctx == NULL) {
+ EVPerr(0, 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);
+ 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;
+
+ 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;
+ }
M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
}
+
+
+static EVP_ASYM_CIPHER *evp_asym_cipher_new(OSSL_PROVIDER *prov)
+{
+ EVP_ASYM_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_ASYM_CIPHER));
+
+ cipher->lock = CRYPTO_THREAD_lock_new();
+ if (cipher->lock == NULL) {
+ OPENSSL_free(cipher);
+ return NULL;
+ }
+ cipher->prov = prov;
+ ossl_provider_up_ref(prov);
+ cipher->refcnt = 1;
+
+ return cipher;
+}
+
+static void *evp_asym_cipher_from_dispatch(int name_id,
+ const OSSL_DISPATCH *fns,
+ OSSL_PROVIDER *prov)
+{
+ 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;
+ }
+
+ 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;
+ }
+ }
+ 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;
+}
+
+void EVP_ASYM_CIPHER_free(EVP_ASYM_CIPHER *cipher)
+{
+ 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);
+ }
+}
+
+int EVP_ASYM_CIPHER_up_ref(EVP_ASYM_CIPHER *cipher)
+{
+ int ref = 0;
+
+ CRYPTO_UP_REF(&cipher->refcnt, &ref, cipher->lock);
+ return 1;
+}
+
+OSSL_PROVIDER *EVP_ASYM_CIPHER_provider(const EVP_ASYM_CIPHER *cipher)
+{
+ return cipher->prov;
+}
+
+EVP_ASYM_CIPHER *EVP_ASYM_CIPHER_fetch(OPENSSL_CTX *ctx, const char *algorithm,
+ const char *properties)
+{
+ 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, 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 / thirdparty / openssl.git / blobdiff