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18 lines
719 B
18 lines
719 B
#ifndef _TRUNC_H_
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#define _TRUNC_H_
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#include "hmac.h"
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#define TO_LITTLE_ENDIAN64(x) (x & 0xFF00000000000000ul)>>(7*8) |\
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(x & 0x00FF000000000000ul)>>(5*8) |\
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(x & 0x0000FF0000000000ul)>>(3*8) |\
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(x & 0x000000FF00000000ul)>>(1*8) |\
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(x & 0x00000000FF000000ul)<<(1*8) |\
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(x & 0x0000000000FF0000ul)<<(3*8) |\
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(x & 0x000000000000FF00ul)<<(5*8) |\
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(x & 0x00000000000000FFul)<<(7*8)
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int32_t get_otp(uint8_t* hmac, uint8_t digits);
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int32_t get_otp_from_cnt(uint64_t cnt, uint8_t digits);
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#endif
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