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Line 146:
Line 146: − + Line 160:
Line 160: − + − if (halfCount) { + − size_t i;+ − for (i = halfCount - 1; i > 0; i--) { − plain[i] = cipher[i] ^ cipher[i - 1]; − } − + + + +
Edited with easier to read code
uint16_t * plain = (uint16_t *) voidplain;
uint16_t * plain = (uint16_t *) voidplain;
uint16_t * cipher = (uint16_t *) voidcipher;
uint16_t * cipher = (uint16_t *) voidcipher;
size_t halfCount = size / sizeof(uint16_t);
size_t halfCount = size >> 1; // Divide by 2 rounding towards zero
uint16_t xorval = htobe16(0xE963);
uint16_t xorval = htobe16(0xE963);
uint16_t * cipher = (uint16_t *) voidcipher;
uint16_t * cipher = (uint16_t *) voidcipher;
uint16_t * plain = (uint16_t *) voidplain;
uint16_t * plain = (uint16_t *) voidplain;
size_t halfCount = size / sizeof(uint16_t);
size_t halfCount = size >> 1; // Divide by 2 rounding towards zero
uint16_t xorval = htobe16(0xE963);
size_t i;
plain[0] = cipher[0] ^ htobe16(0xE963);
for (i = 0; i < halfCount; i++) {
uint16_t word = plain[i];
cipher[i] = xorval ^ word;
xorval = word;
}
}
}</nowiki>
}</nowiki>