- Remove unused next_free_memory=BigBuf_get_addr()
- Fix size retrieval of compressed data section
by chance the corrupted value was > than correct value so
decompression was taking place, but was returning an error
instead of the decompressed size
- Fix reporting of compressed size into common_area
returned value of LZ4_decompress_safe is the decompressed size
while we needed to report the compressed size
- Fix common_area late initialization
common_area was initialized (and zeroed) after
uncompress_data_section() had reported the compressed size
in common_area, so compressed size was erased
Compressed size is used in the computation of the used and available
flash memory, which is now correct
(it was wrongly telling about 6kb were free while they weren't).
Both `hf mfdes auth` and `hf mfdes chk` now support Key Diversification for
AN10922 and as special treat, Gallagher issued cards.
For `hf mfdes auth`:
```
-d, --kdf <kdf> Key Derivation Function (KDF) (0=None, 1=AN10922, 2=Gallagher)
-i, --kdfi <kdfi> KDF input (HEX 1-31 bytes)
```
And for `hf mfdes chk`:
```
-f, --kdf <kdf> Key Derivation Function (KDF) (0=None, 1=AN10922, Gallagher)
-i, --kdfi <kdfi> KDF input (HEX 1-31 bytes)
```
Examples:
- `hf mfdes auth -a 2081f4 -m 3 -t 4 -d 2 -n 2 -k 00112233445566778899aabbccddeeff`
Will diversify the key for key `2` on AID `2081F4` for Gallagher issued cards
- `hf mfdes chk -f 1 -i 00112233 -d mfdes_default_keys`
Will read in all the default keys from the dictionary, and diversify them
using AN10922 with the input data `00112233`
- `hf mfdes chk -f 2 -d mfdes_default_keys`
Will read in all the default keys from the dictionary, and diversify them
using AN10922 but with input data generated from the card's UID, AID and
key number.
