forked from acouzens/open5gs
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/*
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* Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* Copyright (C) 2019-2020 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if !defined(OGS_CRYPT_INSIDE) && !defined(OGS_CRYPT_COMPILATION)
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#error "This header cannot be included directly."
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#endif
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#ifndef OGS_AES_H
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#define OGS_AES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define OGS_AES_BLOCK_SIZE 16
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#define OGS_AES_MAX_KEY_BITS 256
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#define OGS_AES_KEYLENGTH(keybits) ((keybits)/8)
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#define OGS_AES_RKLENGTH(keybits) ((keybits)/8+28)
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#define OGS_AES_NROUNDS(keybits) ((keybits)/32+6)
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int ogs_aes_setup_enc(uint32_t *rk, const uint8_t *key, int keybits);
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int ogs_aes_setup_dec(uint32_t *rk, const uint8_t *key, int keybits);
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void ogs_aes_encrypt(const uint32_t *rk, int nrounds,
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const uint8_t plaintext[16], uint8_t ciphertext[16]);
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void ogs_aes_decrypt(const uint32_t *rk, int nrounds,
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const uint8_t ciphertext[16], uint8_t plaintext[16]);
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int ogs_aes_cbc_encrypt(const uint8_t *key,
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const uint32_t keybits, uint8_t *ivec,
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const uint8_t *in, const uint32_t inlen,
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uint8_t *out, uint32_t *outlen);
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int ogs_aes_cbc_decrypt(const uint8_t *key,
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const uint32_t keybits, uint8_t *ivec,
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const uint8_t *in, const uint32_t inlen,
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uint8_t *out, uint32_t *outlen);
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int ogs_aes_ctr128_encrypt(const uint8_t *key,
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uint8_t *ivec, const uint8_t *in, const uint32_t inlen,
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uint8_t *out);
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#ifdef __cplusplus
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}
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#endif
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#endif /* OGS_AES_H */
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