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Fix edge case -- 0.5% of UIDs got wrong result (#490) --nobuild

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WillyJL
2023-12-13 01:17:43 +00:00
committed by GitHub
parent 1b1124dbd7 b080160451
commit 854787a099
1 changed files with 2 additions and 2 deletions
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4
applications/main/nfc/plugins/supported_cards/saflok.c
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@@ -62,8 +62,8 @@ void generate_saflok_key(const uint8_t* uid, uint8_t* key) {
uint8_t carry_sum = 0;
for(int i = KEY_LENGTH - 1; i >= 0; i--, magickal_index--) {
uint16_t keysum = temp_key[i] + magic_table[magickal_index];
temp_key[i] = (keysum & 0xFF) + carry_sum;
uint16_t keysum = temp_key[i] + magic_table[magickal_index] + carry_sum;
temp_key[i] = (keysum & 0xFF);
carry_sum = keysum >> 8;
}