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/*
* %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 "rc4.h"
ERL_NIF_TERM rc4_set_key(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{/* (Key) */
#ifndef OPENSSL_NO_RC4
ErlNifBinary key;
ERL_NIF_TERM ret;
CHECK_NO_FIPS_MODE();
if (!enif_inspect_iolist_as_binary(env,argv[0], &key)) {
return enif_make_badarg(env);
}
RC4_set_key((RC4_KEY*)enif_make_new_binary(env, sizeof(RC4_KEY), &ret),
key.size, key.data);
return ret;
#else
return enif_raise_exception(env, atom_notsup);
#endif
}
ERL_NIF_TERM rc4_encrypt_with_state(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{/* (State, Data) */
#ifndef OPENSSL_NO_RC4
ErlNifBinary state, data;
RC4_KEY* rc4_key;
ERL_NIF_TERM new_state, new_data;
CHECK_NO_FIPS_MODE();
if (!enif_inspect_iolist_as_binary(env,argv[0], &state)
|| state.size != sizeof(RC4_KEY)
|| !enif_inspect_iolist_as_binary(env,argv[1], &data)) {
return enif_make_badarg(env);
}
rc4_key = (RC4_KEY*)enif_make_new_binary(env, sizeof(RC4_KEY), &new_state);
memcpy(rc4_key, state.data, sizeof(RC4_KEY));
RC4(rc4_key, data.size, data.data,
enif_make_new_binary(env, data.size, &new_data));
CONSUME_REDS(env,data);
return enif_make_tuple2(env,new_state,new_data);
#else
return enif_raise_exception(env, atom_notsup);
#endif
}
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