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minor fix when reading blocks

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roel@libnfc.org 2012-12-17 13:21:53 +00:00
parent fc8c5cdd12
commit ab6bf11f3f
1 changed files with 5 additions and 0 deletions
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5
armsrc/hitag2.c
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@ -531,12 +531,17 @@ bool hitag2_crypto(byte_t* rx, const size_t rxlen, byte_t* tx, size_t* txlen) {
} else { } else {
// Failed reading a block, could be (read/write) locked, skip block and re-authenticate // Failed reading a block, could be (read/write) locked, skip block and re-authenticate
if (blocknr == 1) { if (blocknr == 1) {
// Write the low part of the key in memory
memcpy(tag.sectors[1],key+2,4); memcpy(tag.sectors[1],key+2,4);
} else if (blocknr == 2) { } else if (blocknr == 2) {
// Write the high part of the key in memory
tag.sectors[2][0] = 0x00; tag.sectors[2][0] = 0x00;
tag.sectors[2][1] = 0x00; tag.sectors[2][1] = 0x00;
tag.sectors[2][2] = key[0]; tag.sectors[2][2] = key[0];
tag.sectors[2][3] = key[1]; tag.sectors[2][3] = key[1];
} else {
// Just put zero's in the memory (of the unreadable block)
memset(tag.sectors[blocknr],0x00,4);
} }
blocknr++; blocknr++;
bCrypto = false; bCrypto = false;