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save a byte in the lnurl data that is unused #25

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save a byte in the lnurl data that is unused #25

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0048cfc
Update lnPoSTdisplay.ino
Sparrowhawk1337 Apr 24, 2022
b118a2a
Merge branch 'main' into patch-1
arcbtc Sep 5, 2022
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5 changes: 2 additions & 3 deletions lnPoSTdisplay/lnPoSTdisplay.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -1574,14 +1574,13 @@ int xor_encrypt(uint8_t *output, size_t outlen, uint8_t *key, size_t keylen, uin
memcpy(output + cur, nonce, nonce_len);
cur += nonce_len;

// payload, unxored first - <pin><currency byte><amount>
int payload_len = lenVarInt(pin) + 1 + lenVarInt(amount_in_cents);
// payload, unxored first - <pin><amount>
int payload_len = lenVarInt(pin) + lenVarInt(amount_in_cents);
output[cur] = (uint8_t)payload_len;
cur++;
uint8_t *payload = output + cur; // pointer to the start of the payload
cur += writeVarInt(pin, output + cur, outlen - cur); // pin code
cur += writeVarInt(amount_in_cents, output + cur, outlen - cur); // amount
cur++;

// xor it with round key
uint8_t hmacresult[32];
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