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Oct
11
awarded  Talkative
Oct
11
revised One-Time Pad Distribution of Keys Between Two Parties
expanded on first part
Oct
11
answered One-Time Pad Distribution of Keys Between Two Parties
Oct
9
comment The Goldreich-Goldwasser-Micali Construction with bad PRGS
More generally, as described on page 38 of wisdom.weizmann.ac.il/~naor/COURSE/fc0607_lect15.ppt, lots of things like that are equivalent to each other. $\;$
Oct
9
comment The Goldreich-Goldwasser-Micali Construction with bad PRGS
Since you didn't name the thing actually being plugged into the GGM construction, I suppose "the PRG" defaults to "the pretty terrible stream cipher", which would mean I was wrong about 7. $\:$ I still believe I was right about 4, although otherwise your claim holds, pretty much by your argument. $\:$ This should not be a so surprising, since your claim's assumption amounts to "the thing actually being plugged into the GGM construction is a secure PRG". $\;\;\;$
Oct
9
comment The Goldreich-Goldwasser-Micali Construction with bad PRGS
For 4, each of these cells then becomes the new key for its own subtree. $\hspace{2.17 in}$ For 7, you haven't at all accounted for the PRG having a noticeable efficiently-measure bias, $\hspace{.83 in}$ you've just accounted for it only stretching by a factor of 2. $\;$
Oct
8
comment Encryption algorithms and the “One-Time pad”
en.wikipedia.org/wiki/Stream_cipher $\;$
Oct
8
revised How do TLS 1.1 and 1.2 generate IVs (initialization vectors) for each record?
fixed grammar
Oct
8
revised How does one use AES block cipher modes of operation?
fixed capitalization, grammar, and spacing
Oct
8
comment Decryption possible only within a period of time
en.wikipedia.org/wiki/Hyper-encryption $\;$
Oct
7
comment Formal definition of “explicit” algorithm?
@Nemo : $\:$ Go ahead, you can probably do that much better than I could. $\hspace{1.95 in}$
Oct
7
revised Question about modifying the MD5 plain text to cause a collision
fixed title's grammar
Oct
6
revised Openssl & RSA : how many public exponents are possible?
fixed title's grammar
Oct
6
comment Formal definition of “explicit” algorithm?
eprint.iacr.org/2006/281.ps $\;$
Oct
3
revised Is this a secure multiparty protocol?
inserted missing "ZK"
Oct
3
comment Generate key pair deterministically from a particular seed
ecliptic $\mapsto$ elliptic $\:$ ? $\;\;\;$
Oct
2
comment Is this a secure multiparty protocol?
My "answer" addresses the last sentence of your first paragraph. $\;$
Oct
2
answered Is this a secure multiparty protocol?
Oct
1
comment Hybrid encryption with RSA and AES versus spliting into multiple RSA messages?
Should "echo back" be replaced with "send"? $\:$ If no, what do you mean by that? $\hspace{1.69 in}$
Sep
30
comment Who's talking to who encryption - does this concept work?
"The idea: ..." $\:=\:$ "use a mixnet" $\;\;$. $\;\;\;\;$ My first other key point: a time interval should be included in the plaintext of each encrypted layer, to allow for defending against replay attacks. $\;\;$ My second other key point: authenticity could be established by having the innermost plaintext indicate the identities of the sender and receiver, the sender's signature verification key, and the signed message. $\hspace{1.18 in}$