29 lines
965 B
C++
29 lines
965 B
C++
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/**
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* @file aes128.h
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* @brief AES-128 ECB 加解密（纯软件实现，移植自电机 BOOT 工程）。
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* 用于电机 OTA relay 中对固件数据加密及密钥协商。
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*/
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#ifndef SYS_AES128_H
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#define SYS_AES128_H
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#include <cstdint>
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#include <cstddef>
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#include <cstring>
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static constexpr uint8_t AES128_KEY_LEN = 16U;
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static constexpr uint8_t AES_BLOCK_SIZE = 16U;
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struct aes128_context {
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uint8_t key[AES128_KEY_LEN];
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uint8_t round_keys[11][16];
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uint8_t state[AES_BLOCK_SIZE];
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};
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void aes128_set_key(aes128_context *ctx, const uint8_t *key);
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void aes128_encrypt_block(aes128_context *ctx, const uint8_t *input, uint8_t *output);
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void aes128_decrypt_block(aes128_context *ctx, const uint8_t *input, uint8_t *output);
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void aes128_ecb_encrypt_48bytes(aes128_context *ctx, const uint8_t *input, uint8_t *output);
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void aes128_ecb_decrypt_48bytes(aes128_context *ctx, const uint8_t *input, uint8_t *output);
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#endif /* SYS_AES128_H */
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