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31 lines
790 B
C
31 lines
790 B
C
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#include <stdint.h>
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#include "utils.h"
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#include "smc_api.h"
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#include "smc_user.h"
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#include "se.h"
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uint32_t user_load_aes_key(smc_args_t *args) {
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unsigned char sealed_kek[0x10];
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unsigned char wrapped_key[0x10];
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uint64_t *p_sealed_kek = (uint64_t *)(&sealed_kek[0]);
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uint64_t *p_wrapped_key = (uint64_t *)(&wrapped_key[0]);
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uint32_t keyslot = (uint32_t)args->X[1];
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if (keyslot > 3) {
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return 2;
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}
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/* Copy keydata */
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p_sealed_kek[0] = args->X[2];
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p_sealed_kek[1] = args->X[3];
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p_wrapped_key[0] = args->X[4];
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p_wrapped_key[1] = args->X[5];
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/* TODO: Unseal the kek. */
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set_aes_keyslot(9, sealed_kek, 0x10);
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/* Unwrap the key. */
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decrypt_data_into_keyslot(keyslot, 9, wrapped_key, 0x10);
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return 0;
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}
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