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May
23
comment Understanding math behind RSA key derivation
I put in the close vote because, with your edit, you are essentially asking crypto.stackexchange.com/questions/12710/…
May
23
comment Understanding math behind RSA key derivation
@user220201: Actually, e being "relatively prime to n" is neither sufficient nor necessary. For example $N=77$ and $e=7$ works just fine; in this case, we have $d=13$; for example, if $P=13$; $C=13^7 = 62$ and $P=62^{13} = 13$. Now, of course, for security purposes, you probably don't want to deliberately make $e$ having a nontrivial factor for your modulus; however there's no reason why RSA encryption and decryption wouldn't work.
May
23
answered Understanding math behind RSA key derivation
May
22
comment Simple way to extend AES to 256-bit block size
@jbms: I don't understand the reason you're asking whether a mode which is known to be insecure in one model is secure in another -- there are modes that are known to be secure even in chosen ciphertext models. As for CMC, I believe that would be a good choice.
May
22
reviewed Reviewed How do P2P clients like uTorrent maintain authenticity of files?
May
22
revised How do P2P clients like uTorrent maintain authenticity of files?
"bare with me" technically means "lets get naked together" -- not precisely what was meant in this context :-)
May
22
answered Building a stream-cipher out of a hash function?
May
22
reviewed Leave Open Simple way to extend AES to 256-bit block size
May
22
revised Simple way to extend AES to 256-bit block size
added 21 characters in body
May
22
comment Message lengths with AES CTR mode?
@guydudebro: yes; you'd do exactly that.
May
22
answered Simple way to extend AES to 256-bit block size
May
21
revised Simple way to extend AES to 256-bit block size
edited tags
May
21
revised Simple way to extend AES to 256-bit block size
edited tags
May
21
answered Message lengths with AES CTR mode?
May
21
reviewed Reject suggested edit on Shamir Secret sharing - Can share generator keep x values secret?
May
21
reviewed Reject suggested edit on Shamir Secret sharing - Can share generator keep x values secret?
May
21
awarded  Nice Answer
May
21
reviewed Looks OK Which concrete applications benefit from Oblivious RAM constructions?
May
21
reviewed Leave Open Which concrete applications benefit from Oblivious RAM constructions?
May
21
reviewed No Action Needed One-time pad, zero key and Shannon