vulcan-cryptanalysis

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---------------------------------------------- F5BD : 7F 00 00 " " clr $0000 clear parity F5C0 : 86 15 " " ldaa #$15 F5C2 : 97 66 " f" staa $0066 66
F62C : 8E F8 E2 " " lds #$F8E2 tab:8220D745D75AE75C086D6D7242440930D5404719 F62F : CE 00 02 " " ldx #$0002 x
Page 1 and 2:
Vulcan: A Proprietary Cipher of the
Page 3 and 4:
As a final comment concerning Motor
Page 5 and 6:
known how vulnerable this cipher ac
Page 7 and 8: 7 Figure 3: SC76807 Die Shot
Page 9 and 10: of the SC76807 in a later section,
Page 11 and 12: At the far right side of the chip i
Page 13 and 14: signal. The WE input on Pin 9 and t
Page 15 and 16: its and are always set to 0 by the
Page 17 and 18: 4 DVP Key Loader Based on our analy
Page 19 and 20: 4.2 Reverse Engineering Understandi
Page 21 and 22: 5.1 Key Schedule We created an Octa
Page 23 and 24: plaintext bit (i.e. we are mounting
Page 25 and 26: cryptovariable in real time solely
Page 27 and 28: exposed, it would be enlightening i
Page 29 and 30: [6] Motorola Encryption Topics, htt
Page 31 and 32: % form 8-bit data word from 7 bits
Page 33 and 34: B Vulcan Encrypt Simulation %------
Page 35 and 36: D Vulcan Cryptanalysis Simulation %
Page 37 and 38: 0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,1,0,1
Page 39 and 40: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Page 41 and 42: c = bitxor(c,bitand(cv8(7),ctd(nn-2
Page 43 and 44: E DVP Key Loader Firmware Disassemb
Page 45 and 46: F09A : BD F1 C0 " " jsr $F1C0 put t
Page 47 and 48: F166 : 5C "\" incb F167 : 20 F9 " "
Page 49 and 50: F22C : CE FF 9D " " ldx #$FF9D Load
Page 51 and 52: -----------------------------------
Page 53 and 54: F3B9 : 81 04 " " cmpa #$04 F3BB : 2
Page 55 and 56: F48B : 39 "9" rts -----------------
Page 57: F553 : 39 "9" rts -----------------
Page 61 and 62: F707 : 7E F9 10 "~ " jmp $F910 disp
Page 63 and 64: F7CA : 97 82 " " staa PB F7CC : 96
Page 65 and 66: F87F : 08 " " inx F880 : D6 74 " t"
Page 67 and 68: F947 : 97 82 " " staa PB F949 : 88
Page 69 and 70: FA05 : 5A "Z" decb FA06 : 26 F4 "&
Page 71 and 72: FAE4 : 27 03 "’ " beq $FAE9 FAE6
Page 73 and 74: FBC8 : 27 05 "’ " beq $FBCF . . .
Page 75 and 76: FC80 : 01 " " nop FC81 : D6 74 " t"
Page 77 and 78: FD31 : 20 08 " " bra $FD3B --------
Page 79 and 80: . . . . . . . . . . . . . . . . FE0
Page 81 and 82: FEAD : 27 04 "’ " beq $FEB3 FEAF
Page 83 and 84: FF61 : BD F1 70 " p" jsr $F170 writ
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