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crypto: Check for invalid characters in Monero Base58 decode.

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Andrew Kozlik 2020-04-14 17:03:40 +02:00 committed by Tomas Susanka
parent 20dd1ddc60
commit 3843f917e9
1 changed files with 2 additions and 0 deletions
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2
crypto/monero/base58.c
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@ -102,6 +102,8 @@ bool decode_block(const char* block, size_t size, char* res)
uint64_t order = 1; uint64_t order = 1;
for (size_t i = size - 1; i < size; --i) for (size_t i = size - 1; i < size; --i)
{ {
if (block[i] & 0x80)
return false; // Invalid symbol
int digit = reverse_alphabet(block[i]); int digit = reverse_alphabet(block[i]);
if (digit < 0) if (digit < 0)
return false; // Invalid symbol return false; // Invalid symbol