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iceman1001 2024-09-14 18:38:28 +02:00
commit dd32fceb54
2 changed files with 8 additions and 0 deletions
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7
client/src/util.c
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@ -1153,6 +1153,13 @@ void hex_xor(uint8_t *d, const uint8_t *x, int n) {
}
}
void hex_xor_token(uint8_t *d, const uint8_t *x, int dn, int xn) {
while (dn--) {
d[dn] ^= x[dn % xn];
}
}
// return parity bit required to match type
uint8_t GetParity(const uint8_t *bits, uint8_t type, int length) {
int x;

1
client/src/util.h
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@ -142,6 +142,7 @@ void bytes_2_binstr(char *target, const uint8_t *source, size_t sourcelen);
void binstr_2_bytes(uint8_t *target, size_t *targetlen, const char *src);
void hex_xor(uint8_t *d, const uint8_t *x, int n);
void hex_xor_token(uint8_t *d, const uint8_t *x, int dn, int xn);
uint8_t GetParity(const uint8_t *bits, uint8_t type, int length);
void wiegand_add_parity(uint8_t *target, const uint8_t *source, uint8_t length);