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bio website stackexchange.com/users/…
location Paris, France
age 34
visits member for 2 years, 8 months
seen 5 hours ago

Moderator♦ pro tempore on French Language and Usage and Computer Science. I'm also a unix amateur, and a developer with a computer science background and security leanings by trade.

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Avatar picture slightly adapted from a photo by Luridiformis (Zonda Grattus) (except where I use another picture).


Apr
9
comment SHA256-based stream cipher
Please include enough information to make your question self-contained. Note that we do not do full reviews of crytographic schemes (“is this scheme secure?”). We can provide feedback about specific properties (”is this step vulnerable to this type of attack?“). If you edit your question, take care not to invalidate figlesquidge's answer.
Apr
9
reviewed Close SHA256-based stream cipher
Apr
9
reviewed Reviewed How to attack a classical cipher using known partial plaintext?
Apr
9
comment How to attack a classical cipher using known partial plaintext?
Welcome to Stack Exchange. This answer would be more interesting if you described some algorithms to detect classical ciphers, rather than just linking to some code (whose operating principle isn't even described, at least not at that URL).
Apr
8
reviewed Leave Open HKDF as keystream generator
Apr
8
comment What benefit is there to using AES over my custom cipher for secure storage?
This question would be on-topic on Information Security, but it has already been answered there: Why shouldn't we roll our own?
Apr
8
reviewed Close What benefit is there to using AES over my custom cipher for secure storage?
Apr
8
comment What benefit is there to using AES over my custom cipher for secure storage?
This question appears to be off-topic because it is about what cryptography is suitable for what applications, rather than about the design of cryptographic systems.
Apr
8
reviewed Leave Open Why are Fortuna entropy pools reset after a reseed?
Apr
8
reviewed Leave Open Is it possible to deduce the IV from CBC ciphered data, without knowing the key?
Apr
6
reviewed Close What's the difference between RSA, ECDSA & Merkle signatures
Apr
6
reviewed Close Wrong Test Vector for HKDF with HMAC-SHA256
Apr
5
reviewed Close encrypting data signals using the time variations between two independent coupling functions
Apr
5
reviewed Leave Open Compression step of PGP
Apr
4
reviewed Close What are alternatives to number theory based crypto?
Apr
4
answered Prefixing data before encryption for passphrase confirmation?
Apr
4
reviewed Reviewed Prefixing data before encryption for passphrase confirmation?
Apr
3
reviewed Looks Good Should we MAC-then-encrypt or encrypt-then-MAC?
Apr
1
reviewed Close Decrypt AES-128 with key file but missing IV?
Mar
31
reviewed Close Testing hardware random number generators?