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Dec
13
reviewed Close What do you mean by Ciphertext indistinguishability
Dec
6
reviewed Close Can knowing part of what was used to generate an md5 hash make it vulnerable?
Dec
6
reviewed Leave Open Unconditionally Secure Authentication
Dec
5
comment Unconditionally Secure Authentication
Do I understand correctly that you are looking for a MAC that will not leak information about the plain text, even in the face of an unbounded attacker (simple: EtA will work)?
Dec
3
reviewed No Action Needed Perfect Forward Secrecy in PGP/asynchronous email
Dec
3
reviewed No Action Needed How Brittle Are LCG-Cracking Techniques?
Dec
2
answered How does the certificate trust model work in detail?
Nov
29
reviewed Close bank websites using AES_256_CBC vs AES_128_GCM/CBC
Nov
28
comment RSA: Most significant key bit always 1?
@pafodie There is a subtle difference between numbers and bit strings. Bit strings might have either 0 or 1 at the most significant index. All positive non-zero numbers will always have 1 in the most significant bit.
Nov
26
comment Does the RSA algorithm use repeated squaring?
The RSA algorithm doesn't use repeated squaring. However, many implementations of the RSA private key operation do use implementations of modular exponentiation that do use repeated squaring in one form or another.
Nov
25
revised Will entropy be lost by using a DRBG?
added 24 characters in body
Nov
25
answered Will entropy be lost by using a DRBG?
Nov
23
reviewed Reopen Decoding base64 encoded message with a key
Nov
22
reviewed Close Probability of guessing random 128-bit AES key
Nov
21
comment CTR DRBG dependent on request size?
A library that implements DRBG-AES-CTR will implement AES-PRF, which can be used as a "chunkable" PRF.
Nov
21
revised CTR DRBG dependent on request size?
added 559 characters in body
Nov
21
comment CTR DRBG dependent on request size?
I respectfully disagree. A DRBG is not meant to be used as a PRF. It is only meant to generate bits that are to be used where ideally completely random bits should be used.
Nov
21
answered CTR DRBG dependent on request size?
Oct
31
reviewed Close how to decrypt hidden text under numbers?
Oct
24
revised How is “post-quantum security” proven/shown?
edited body