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hrp is ASCII character, not 5 bit words
This commit is contained in:
Jochen Hoenicke 2017-10-31 19:16:07 +01:00 committed by Pavol Rusnak
parent a5653dafe7
commit f366fb81c5
1 changed files with 7 additions and 3 deletions
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10
segwit_addr.c
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@ -51,9 +51,13 @@ int bech32_encode(char *output, const char *hrp, const uint8_t *data, size_t dat
uint32_t chk = 1; uint32_t chk = 1;
size_t i = 0; size_t i = 0;
while (hrp[i] != 0) { while (hrp[i] != 0) {
if (hrp[i] >= 'A' && hrp[i] <= 'Z') return 0; int ch = hrp[i];
if (!(hrp[i] >> 5)) return 0; if (ch < 33 || ch > 126) {
chk = bech32_polymod_step(chk) ^ (hrp[i] >> 5); return 0;
}
if (ch >= 'A' && ch <= 'Z') return 0;
chk = bech32_polymod_step(chk) ^ (ch >> 5);
++i; ++i;
} }
if (i + 7 + data_len > 90) return 0; if (i + 7 + data_len > 90) return 0;