v1.9.5: T=0 framing — immediate SW, short responses, Le=256
- Decode the first post-header byte as SW1 before the ACK/data decision: a case-2 rejection (6A82/6CXX) carries no ACK and used to be read as command data, silently consuming the exchange and the next one. - Short responses (Lr < Le): after the P3-byte read, split the buffer at the first plausible SW1 followed by a plausible CLA, replay the tail and flag BAD_FCS; previously the SW scan discarded the real SW, merged the following exchanges and lost the exchange at EOF. - P3=0 is Le=256 for an outgoing command: keep the response data (read until SW) instead of discarding it, including data bytes equal to INS. - ~INS ACK: one data byte per ACK via the new helpers; case-4 inline data is appended (permissive; ISO 7816-3 §12.2 maps case 4 to GET RESPONSE). - tests: four TestDecodeStep vectors (immediate SW, short read + split + replay, Le=256 data incl. an INS-valued byte); 99/99. - AGENTS v1.9.5 + T=0 section, README/README_RUS bullets; baseline regenerated (xiaomi_mi_a1_coldboot 473 -> 475 APDUs, all else identical); compare_baseline: IDENTICAL.
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@@ -1,7 +1,7 @@
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=== Baseline captured 2026-10-18T02:13:20+03:00 ===
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=== Baseline captured 2026-10-20T16:56:58+03:00 ===
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=== test_8 ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('etu recovered (samples):', 1237)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -36,7 +36,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== test_7 ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('etu recovered (samples):', 1236)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -77,7 +77,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== xiaomi_phone_sample ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('etu recovered (samples):', 53)
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(11674007, 'CHKSUM ERROR: ', 0, 'bits: ', [0, 0, 0, 1, 0, 0, 1, 1, 1, 1])
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iso7816-1: CHKSUM ERROR bits=[0, 0, 0, 1, 0, 0, 1, 1, 1, 1]
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@@ -102,7 +102,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== xiaomi_mi_a1_coldboot ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -112,12 +112,12 @@ CHKSUM ERROR count: 0
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CONCAT APDU count: 0
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reader exchanges : 0
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capture ATRs : 1
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capture APDUs : 473
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capture APDUs : 475
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byte-exact matches (LCS) : 0
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reader exchanges not in capture (pre-capture / dropped): 0
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capture APDUs not in reader log:
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- proactive/CAT (unlogged by reader SDK): 10
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- valid exchanges (reader retries/dupes): 463
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- valid exchanges (reader retries/dupes): 465
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- GARBAGE (mis-framed/desync): 0
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Degradation metrics:
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@@ -129,7 +129,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== 4gmodem_coldboot ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -156,7 +156,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== alcor_reader_sample ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -189,7 +189,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== samsung_A55_coldboot_new_cable ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -216,7 +216,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== samsung_A55_coldboot_new_cable_sim2 ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -243,7 +243,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== samsung_S21p_coldboot_new_cable ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -270,7 +270,7 @@ Degradation metrics:
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RESULT: OK - capture fully explained (reader + CAT + valid retries)
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=== samsung_S21p_coldboot_new_cable_sim2 ===
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('=== iso7816 decoder v1.9.4 ===',)
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('=== iso7816 decoder v1.9.5 ===',)
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('RST low at start: expecting cold-boot ATR',)
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iso7816-1: RST deasserted
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('RST deasserted',)
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@@ -359,7 +359,11 @@ test_bit_dense_valid_cla_is_not_idle_noise (__main__.TestDecodeStep.test_bit_den
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test_ex_class_exchange_frames (__main__.TestDecodeStep.test_ex_class_exchange_frames) ... ok
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test_extended_channel_exchange_frames (__main__.TestDecodeStep.test_extended_channel_exchange_frames) ... ok
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test_idle_noise_still_discarded (__main__.TestDecodeStep.test_idle_noise_still_discarded) ... ok
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test_immediate_sw_rejection_frames (__main__.TestDecodeStep.test_immediate_sw_rejection_frames) ... ok
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test_invalid_ins_re_frame_recovers_command (__main__.TestDecodeStep.test_invalid_ins_re_frame_recovers_command) ... ok
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test_le_256_response_data_is_kept (__main__.TestDecodeStep.test_le_256_response_data_is_kept) ... ok
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test_short_response_is_split_and_flagged (__main__.TestDecodeStep.test_short_response_is_split_and_flagged) ... ok
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test_short_response_replays_following_exchange (__main__.TestDecodeStep.test_short_response_replays_following_exchange) ... ok
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test_text_byte_boundary_is_discarded_not_framed (__main__.TestDecodeStep.test_text_byte_boundary_is_discarded_not_framed) ... ok
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test_glitch_low_pulse_removed (__main__.TestDeglitchEdges.test_glitch_low_pulse_removed) ... ok
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test_no_edges (__main__.TestDeglitchEdges.test_no_edges) ... ok
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@@ -435,6 +439,6 @@ test_valid_ins_odd_variants (__main__.TestValidateT0Apdu.test_valid_ins_odd_vari
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test_vs_reader_mirror (__main__.TestValidateT0Apdu.test_vs_reader_mirror) ... ok
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----------------------------------------------------------------------
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Ran 95 tests in 0.028s
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Ran 99 tests in 0.032s
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OK
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