Abraham

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comment Send APDU commands to USIM/SIM card in android
Hi dear Vojta, I hope all is well. Sorry for asking questions in comments. This is a temporary comment. Do you have any idea about sending APDU commands to Javacards in POS devices? I need to have a secure communication between my applet and a POS device and I also want to install applets on Javacards using POS devices. Is there any library for that (Handing SCP01 secure channel communication and installing applets)? (The POS is from Ingenico Corp)
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asked Extract a list of IPs which are visited both URL A and B from a NoSQL database
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asked Why HTTP Server ignores the MSS value?
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awarded Nice Question
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asked How to customize Gitlab LDAP authentication function?
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comment How to check if installed Trusted CAs are not dangerous?
@SteffenUllrich I searched almost all the above certificate's Thumbprints in www.crt.sh, but nothing found. Why?
Feb
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asked How to check if installed Trusted CAs are not dangerous?
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comment Are SSL encrypted requests vulnerable to Replay Attacks?
OK, Thanks. So, would you please check this: blog.valverde.me/2015/12/07/bad-life-advice/#.XDpHS1wzZPY How much is this attack serious? Is it practical?
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awarded Critic
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comment Are SSL encrypted requests vulnerable to Replay Attacks?
By "sequence number" in your answer, do you mean the TCP layer sequence numbers? If so, does that mean the OS TCP stack layer is somehow responsible for prevention of replay attacks in TLS? So I afraid if in a specific OS, the TCP stack implementation works in way that it passes the payload of repeated packets (equal SEQ numbers) to application layer, then the OS is vulnerable to replay attacks for TLS traffic. Am I right?
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