A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
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| random-oracle-model× 8 |
replay-attack× 8
based on recording an encrypted and/or signed communication and replaying it at a later time.
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prf× 7 |
padding-oracle× 7
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steganography× 7
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standards× 7
Questions about official cryptographic standards and their implementation.
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commitments× 7
a protocol where one party commits themselves to a secret value without revealing it. At a later point, the value can be revealed.
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convergent-encryption× 7
Convergent encryption, also known as content hash keying, is simply encrypting a file using a symmetric encryption key which is the secure hash of the plaintext of the file.
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digital-cash× 7
Money that may be transferred electronically from one party to another during a transaction.
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elgamal-signature× 7
A digital signature scheme based on the discrete logarithm problem, published by Taher ElGamal in 1984. Not to be confused with the ElGamal encryption system.
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host-proof× 7
"host-proof" means that no unencrypted or insecure data is stored on the server or passed over the network.
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hotp× 7
The HMAC-based one-time password algorithm defined in RFC 4226.
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malleability× 7
said to be malleable if it is feasible to modify ciphertext to produce meaningful changes in the corresponding plaintext without knowing the encryption key.
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lfsr× 6
Linear Feedback Shift Register, a pseudorandom bit generator which can be efficiently implemented in hardware.
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forgery× 6 | format-preserving× 6 |
| dictionary-attack× 6 | crc× 6 | deniable-encryption× 6 |
arithmetic× 6
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3des× 6
A block cypher encryption algorithm built from applying three iterations of the original DES algorithm.
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twofish× 6 |
timing-attacks× 6
side channel attack based on the different speed at which certain operations are executed.
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ssh× 6
The SSH security protocol
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| time-sensitive× 6 | openssl× 6 | reference-request× 6 |
proof-of-work× 5
based on a mathematical problem that is moderate hard to solve but easy to verify.
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| non-repudiation× 5 |
oblivious-transfer× 5
Oblivious transfer refers to a cryptographic protocol in which a sender possesses a set of data and a receiver queries the sender for a particular member of that set in such a way that the sender does…
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mceliece× 5 |
test-vectors× 5
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| serpent× 5 |
vigenere× 5
a classical cipher that shifts each plaintext character by the value of the key at the same position modulo the key-length.
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white-box× 5
In cryptography, white box analysis means extracting a secret value from an implementation of a function that uses the value.
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2nd-preimage-resistance× 5
Difficulty of finding another input string that hashes to the same value as a given string
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