diff options
Diffstat (limited to 'lib/crypto/c_src/chacha20.c')
-rw-r--r-- | lib/crypto/c_src/chacha20.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/lib/crypto/c_src/chacha20.c b/lib/crypto/c_src/chacha20.c deleted file mode 100644 index cfcc395dca..0000000000 --- a/lib/crypto/c_src/chacha20.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 2010-2018. All Rights Reserved. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * %CopyrightEnd% - */ - -#include "chacha20.h" -#include "cipher.h" - -ERL_NIF_TERM chacha20_stream_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) -{/* (Key, IV) */ -#if defined(HAVE_CHACHA20) - ErlNifBinary key_bin, ivec_bin; - struct evp_cipher_ctx *ctx = NULL; - const EVP_CIPHER *cipher; - ERL_NIF_TERM ret; - - ASSERT(argc == 2); - - if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin)) - goto bad_arg; - if (key_bin.size != 32) - goto bad_arg; - if (!enif_inspect_binary(env, argv[1], &ivec_bin)) - goto bad_arg; - if (ivec_bin.size != 16) - goto bad_arg; - - cipher = EVP_chacha20(); - - if ((ctx = enif_alloc_resource(evp_cipher_ctx_rtype, sizeof(struct evp_cipher_ctx))) == NULL) - goto err; - if ((ctx->ctx = EVP_CIPHER_CTX_new()) == NULL) - goto err; - - if (EVP_CipherInit_ex(ctx->ctx, cipher, NULL, - key_bin.data, ivec_bin.data, 1) != 1) - goto err; - if (EVP_CIPHER_CTX_set_padding(ctx->ctx, 0) != 1) - goto err; - - ret = enif_make_resource(env, ctx); - goto done; - - bad_arg: - return enif_make_badarg(env); - - err: - ret = enif_make_badarg(env); - - done: - if (ctx) - enif_release_resource(ctx); - return ret; - -#else - return enif_raise_exception(env, atom_notsup); -#endif -} - -ERL_NIF_TERM chacha20_stream_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) -{/* (State, Data) */ -#if defined(HAVE_CHACHA20) - struct evp_cipher_ctx *ctx = NULL, *new_ctx = NULL; - ErlNifBinary data_bin; - ERL_NIF_TERM ret, cipher_term; - unsigned char *out; - int outl = 0; - - ASSERT(argc == 2); - - if (!enif_get_resource(env, argv[0], evp_cipher_ctx_rtype, (void**)&ctx)) - goto bad_arg; - if (!enif_inspect_iolist_as_binary(env, argv[1], &data_bin)) - goto bad_arg; - if (data_bin.size > INT_MAX) - goto bad_arg; - - if ((new_ctx = enif_alloc_resource(evp_cipher_ctx_rtype, sizeof(struct evp_cipher_ctx))) == NULL) - goto err; - if ((new_ctx->ctx = EVP_CIPHER_CTX_new()) == NULL) - goto err; - - if (EVP_CIPHER_CTX_copy(new_ctx->ctx, ctx->ctx) != 1) - goto err; - if ((out = enif_make_new_binary(env, data_bin.size, &cipher_term)) == NULL) - goto err; - if (EVP_CipherUpdate(new_ctx->ctx, out, &outl, data_bin.data, (int)data_bin.size) != 1) - goto err; - ASSERT(outl >= 0 && (size_t)outl == data_bin.size); - - ret = enif_make_tuple2(env, enif_make_resource(env, new_ctx), cipher_term); - CONSUME_REDS(env, data_bin); - goto done; - - bad_arg: - return enif_make_badarg(env); - - err: - ret = enif_make_badarg(env); - - done: - if (new_ctx) - enif_release_resource(new_ctx); - return ret; - -#else - return enif_raise_exception(env, atom_notsup); -#endif -} |