forked from acouzens/open5gs
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/*
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* Copyright (C) 2019 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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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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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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