mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-20 18:53:08 +00:00
144 lines
3.6 KiB
Python
144 lines
3.6 KiB
Python
# SPDX-License-Identifier: MIT
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import sys, pathlib
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sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
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from m1n1.setup import *
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from m1n1.shell import run_shell
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from m1n1.hw.dart import DART
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from m1n1.hw.aes import *
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def aes_set_custom_key(
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aes,
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key,
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encrypt=True,
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mode=AES_SET_KEY_BLOCK_MODE.CTR,
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keyslot=0,
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keygen=0,
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):
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keylen = {
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16: AES_SET_KEY_LEN.AES128,
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24: AES_SET_KEY_LEN.AES192,
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32: AES_SET_KEY_LEN.AES256,
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}[len(key)]
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aes.R_CMD_FIFO = AESSetKeyCommand(
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KEY_SELECT=0,
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KEYLEN=keylen,
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ENCRYPT=1 if encrypt else 0,
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BLOCK_MODE=mode,
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SLOT=keyslot,
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KEYGEN=keygen,
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).value
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for i in range(0, len(key), 4):
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aes.R_CMD_FIFO = struct.unpack(">I", key[i : i + 4])[0]
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def aes_set_hw_key(
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aes,
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key,
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keylen=AES_SET_KEY_LEN.AES128,
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encrypt=True,
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mode=AES_SET_KEY_BLOCK_MODE.CTR,
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slot=0,
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keygen=0,
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):
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aes.R_CMD_FIFO = AESSetKeyCommand(
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KEY_SELECT=key,
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KEYLEN=keylen,
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ENCRYPT=1 if encrypt else 0,
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BLOCK_MODE=mode,
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SLOT=slot,
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KEYGEN=keygen,
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).value
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def aes_set_iv(aes, iv, slot=0):
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assert len(iv) == 16
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aes.R_CMD_FIFO = AESSetIVCommand(SLOT=slot)
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for i in range(0, len(iv), 4):
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aes.R_CMD_FIFO = struct.unpack(">I", iv[i : i + 4])[0]
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def aes_crypt(aes, dart, data, key_slot=0, iv_slot=0):
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assert len(data) % 16 == 0
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bfr = p.memalign(0x4000, len(data))
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iova = dart.iomap(1, bfr, len(data))
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dart.iowrite(1, iova, data)
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aes.R_CMD_FIFO = AESCryptCommand(LEN=len(data), KEY_SLOT=key_slot, IV_SLOT=iv_slot)
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aes.R_CMD_FIFO = 0 # actually upper bits of addr
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aes.R_CMD_FIFO = iova # src
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aes.R_CMD_FIFO = iova # dst
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aes.R_CMD_FIFO = AESBarrierCommand(IRQ=1).value
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time.sleep(0.1)
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# while aes.R_IRQ_STATUS.reg.FLAG != 1:
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# pass
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# aes.dump_regs()
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aes.R_IRQ_STATUS = aes.R_IRQ_STATUS.val
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res = dart.ioread(1, iova, len(data))
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return res
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def test_hw_key(key, keylen, keygen=0):
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aes.R_IRQ_STATUS = aes.R_IRQ_STATUS.val
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aes.R_CONTROL.set(CLEAR_FIFO=1)
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aes.R_CONTROL.set(RESET=1)
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aes.R_CONTROL.set(START=1)
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# aes.dump_regs()
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aes_set_hw_key(aes, key, keylen, slot=0, keygen=keygen)
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# print(aes.R_IRQ_STATUS)
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aes_set_iv(aes, b"\x00" * 16, slot=0)
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chexdump(aes_crypt(aes, dart, b"\x00" * 16, key_slot=0, iv_slot=1))
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# aes.dump_regs()
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aes.R_CONTROL.set(STOP=1)
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def test_custom_key(key, keygen=0):
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aes.R_IRQ_STATUS = aes.R_IRQ_STATUS.val
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aes.R_CONTROL.set(CLEAR_FIFO=1)
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aes.R_CONTROL.set(RESET=1)
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aes.R_CONTROL.set(START=1)
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# aes.dump_regs()
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aes_set_custom_key(aes, key, keyslot=0, keygen=keygen)
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aes_set_iv(aes, b"\x00" * 16)
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aes_set_iv(aes, b"\x11" * 16, slot=1)
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chexdump(aes_crypt(aes, dart, b"\x00" * 16, key_slot=0, iv_slot=0))
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# aes.dump_regs()
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aes.R_CONTROL.set(STOP=1)
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p.pmgr_adt_clocks_enable("/arm-io/aes")
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dart = DART.from_adt(u, "/arm-io/dart-sio")
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dart.initialize()
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aes_base, _ = u.adt["/arm-io/aes"].get_reg(0)
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aes = AESRegs(u, aes_base)
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aes.dump_regs()
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dart.dump_all()
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for keygen in range(4):
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print(f"zero key, keygen={keygen}", end="")
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test_custom_key(b"\x00" * 16, keygen=keygen)
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for keygen in range(4):
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print("#" * 10)
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for keylen in [
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AES_SET_KEY_LEN.AES128,
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AES_SET_KEY_LEN.AES192,
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AES_SET_KEY_LEN.AES256,
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]:
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for i in (1, 3):
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print(f"key = {i}, keylen={keylen}, keygen={keygen}", end="")
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test_hw_key(i, keylen, keygen=keygen)
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dart.dump_all()
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run_shell(globals(), msg="Have fun!")
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