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How many hashes do I need to compute to get x collisions?

cryptography hash

modified 6 hours ago Community♦ 1

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217

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How Does Telegram's Identity Verification Work?

encryption cryptography instant-messaging

modified 7 hours ago Mars 725

112

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44k

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Password Hashing add salt + pepper or is salt enough?

cryptography passwords hash salt hmac

modified 9 hours ago Jacco 2,213

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Is having a unique key to encrypt data not sufficient

encryption cryptography initialisation-vector ciphers

answered yesterday thexacre 7,143

110

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21k

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Why shouldn't we roll our own?

cryptography custom-scheme

modified 2 days ago schroeder♦ 30.5k

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630

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Requiring 2 keys to access a content

encryption cryptography

modified Apr 9 at 16:52 Community♦ 1

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how is public key being exchanged in asymmetric cryptography?

cryptography asymmetric

modified Apr 8 at 11:42 user1301428 1,129

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142

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+100

How do EMV contactless cards protect against replay attacks?

cryptography credit-card rfid

modified Apr 8 at 11:20 whatever489 29

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Hide data from user, but process it in application

encryption cryptography key-management obfuscation drm

answered Apr 7 at 23:49 forest 995

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Can an attacker make in-app-purchases of my products in their app?

cryptography ios

modified Apr 7 at 21:41 Nathan 591

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Question on MAC(Message Authentication code)?

cryptography

modified Apr 7 at 15:20 Xander 22.9k

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Is this good/secure method for client-server communication encryption?

encryption cryptography rsa random prng

answered Apr 7 at 13:12 SmokeDispenser 3,886

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Does EMV protect against sniffing PAN data from untrusted network?

encryption cryptography credit-card emv

answered Apr 4 at 20:39 John Deters 12.7k

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Are there any security advantages to the “TrueCrypt-Paradigm”?

cryptography random truecrypt

answered Apr 4 at 3:17 forest 995

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How many hashes do I need to compute to get x collisions?

How Does Telegram's Identity Verification Work?

Password Hashing add salt + pepper or is salt enough?

Is having a unique key to encrypt data not sufficient

Why shouldn't we roll our own?

Requiring 2 keys to access a content

how is public key being exchanged in asymmetric cryptography?

How do EMV contactless cards protect against replay attacks?

Hide data from user, but process it in application

Can an attacker make in-app-purchases of my products in their app?

Question on MAC(Message Authentication code)?

Is this good/secure method for client-server communication encryption?

Does EMV protect against sniffing PAN data from untrusted network?

Are there any security advantages to the “TrueCrypt-Paradigm”?

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