Classic block ops are gated by a crypto1 auth per sector, so a bare 0x30 does nothing. Wire the
MFC catalog to hf.mfc (which does the auth + op in firmware), run-based like the T5577 commands:
READ(<block>[, <12-hex key>][, A|B]) -> auth + read the 16-byte block (default FFFFFFFFFFFF/A)
WRITE(<block>, <32-hex>[, key][, A|B]) -> auth + write
CHK(<block>[, A|B]) -> try a default key list, report the working key
build() still exposes the wire opcode (0x30/0xA0) so hex/binary completion and the raw-byte page
map keep working; execution goes through run(). Key type A/B accepted as letters or 0/1.
Mock-tested (rdbl/wrbl/chk call args + result lines, key override, failure path). Hardware verify
needs an actual MIFARE Classic card on the antenna (current tag is the NTAG213). 1340 green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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