58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
#include "security_types.h"
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#ifndef SECU_DEFS_H_
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#define SECU_DEFS_H_
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#define EIA0_ALG_ID 0x00
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#define EIA1_128_ALG_ID 0x01
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#define EIA2_128_ALG_ID 0x02
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inline
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void kdf(const uint8_t *s, const uint32_t s_length, const uint8_t *key,
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const uint32_t key_length, uint8_t **out, uint32_t out_length);
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int derive_keNB(const uint8_t kasme[32], const uint32_t nas_count, uint8_t **keNB);
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int derive_key_nas(algorithm_type_dist_t nas_alg_type, uint8_t nas_enc_alg_id,
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const uint8_t kasme[32], uint8_t **knas);
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#define derive_key_nas_enc(aLGiD, kASME, kNAS) \
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derive_key_nas(NAS_ENC_ALG, aLGiD, kASME, kNAS)
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#define derive_key_nas_int(aLGiD, kASME, kNAS) \
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derive_key_nas(NAS_INT_ALG, aLGiD, kASME, kNAS)
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#define derive_key_rrc_enc(aLGiD, kASME, kNAS) \
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derive_key_nas(RRC_ENC_ALG, aLGiD, kASME, kNAS)
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#define derive_key_rrc_int(aLGiD, kASME, kNAS) \
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derive_key_nas(RRC_INT_ALG, aLGiD, kASME, kNAS)
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#define derive_key_up_enc(aLGiD, kASME, kNAS) \
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derive_key_nas(UP_ENC_ALG, aLGiD, kASME, kNAS)
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#define derive_key_up_int(aLGiD, kASME, kNAS) \
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derive_key_nas(UP_INT_ALG, aLGiD, kASME, kNAS)
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#define SECU_DIRECTION_UPLINK 0
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#define SECU_DIRECTION_DOWNLINK 1
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typedef struct {
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uint8_t *key;
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uint32_t key_length;
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uint32_t count;
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uint8_t bearer;
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uint8_t direction;
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uint8_t *message;
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/* length in bits */
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uint32_t blength;
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} nas_stream_cipher_t;
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int nas_stream_encrypt_eea2(nas_stream_cipher_t *stream_cipher, uint8_t **out);
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int nas_stream_encrypt_eia2(nas_stream_cipher_t *stream_cipher, uint8_t out[4]);
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#undef SECU_DEBUG
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#endif /* SECU_DEFS_H_ */
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