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Apr
1
awarded  Yearling
Apr
1
revised Decrypt AES-128 with key file but missing IV?
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Apr
1
answered Decrypt AES-128 with key file but missing IV?
Mar
20
revised In Needham Schroeder key distribution what happens if responder's part is not encrypted in step 2 with Kbs but encrypted instead by Kab in step 3
deleted 5 characters in body
Mar
20
revised In Needham Schroeder key distribution what happens if responder's part is not encrypted in step 2 with Kbs but encrypted instead by Kab in step 3
added 16 characters in body
Mar
20
answered In Needham Schroeder key distribution what happens if responder's part is not encrypted in step 2 with Kbs but encrypted instead by Kab in step 3
Mar
18
awarded  Enthusiast
Mar
12
answered Linear Cryptanalysis - possible without plaintext?
Mar
10
comment Why the same characteristics cannot be used to recover all FEAL4 keys
@Thomas Thanks for answer, but I did not get, what do you mean. Do you mean that differential 0x8080000080800000, which used for cracking subkey of last round, leads to the differential 0x02000000 with 100% probability? And so we cannot reveal subkey of round 2? But why we cannot use this differential to reveal subkey of round 3?
Mar
10
awarded  Student
Mar
10
revised Why the same characteristics cannot be used to recover all FEAL4 keys
added 210 characters in body
Mar
10
asked Why the same characteristics cannot be used to recover all FEAL4 keys
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
For more clarity could you update your question? Do you mean why $g^{a(bb^{-1})} !=g^a\bmod P$ or why $g^{(abb)^{-1}} !=g^a\bmod P$.
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
@tylo, I understood, what did you talked about. Thank you.
Mar
6
revised why inverse in diffie-hellman protocol will not give same value?
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Mar
6
awarded  Commentator
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
@tylo for example $P=29, g=3, a=2, b=5$. $g^a =9 \bmod 29$, $g^{ab} =5 \bmod 29$. $b^{-1} = 6 \bmod 29$. But $g^{abb^{-1}}=23 \bmod 29$ If DrLecter is right and my answer is wrong, could you explain please, why last result is not equal to 9. Is something i messed or done wrong?
Mar
6
revised why inverse in diffie-hellman protocol will not give same value?
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Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
@Aria, I added intermediate steps. Hope, now it is more clear.
Mar
6
revised why inverse in diffie-hellman protocol will not give same value?
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