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Title: pcr2.1 seed key algo Post by: proel on March 26, 2020, 02:08:58 PM Hi,
is there an seed/key algo for this ecu. i tried some calculations but without success i have some correct seed/keys seed: 84 A7 09 90 key : 84 A7 76 D3 seed: FB F6 A4 BE key : FB F7 12 01 seed: AF 92 94 3D key : AF 93 01 80 seed: 83 39 F4 1E key: 83 3A 61 61 Title: Re: pcr2.1 seed key algo Post by: gremlin on March 27, 2020, 09:15:25 AM mov eax, Seed
for (i = 1; i <= 3; i++) { ror eax, 1 jno L0 for (i = 1; i <= 6; i++) { sub eax, 0x06200617 jno L1 xor eax, 0x01200309 L1: ror eax, 1 } L0: for (i = 1; i <= 4; i++) { add eax, 0x74191119 } ror eax, 1 jno L2 xor eax, 0x25010720 L2: rol eax, 1 jno L3 rol eax, 1 L3: } mov Key, eax ret Title: Re: pcr2.1 seed key algo Post by: Geremia on March 29, 2020, 06:15:57 AM key = seed+0x6D43, nothing fancy
Title: Re: pcr2.1 seed key algo Post by: sanyagans on October 25, 2022, 11:34:20 AM key = seed+0x6D43, nothing fancy ;D |