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Dec
17
answered Dancing confusion with Daniel J. Bernstein's stream ciphers
Dec
17
revised one time pad regarding
added 51 characters in body
Dec
16
comment What would be the best plain text Cryptography method without the use of a computer?
@tylo I don't know any secure hand cipher that's less terrible than the OTP from a usage point of view. RC4, solitaire etc. have the same key reuse problems.
Dec
15
comment Recovering El Gamal secret key from signatures
@Kairos Since this is a duplicate it has been closed and your bounty refunded. If you want to, you can offer a bounty on the duplicate.
Dec
15
comment request for data to test deterministic ecdsa signature algorithm for secp256k1
Thread on bitcointalk that has several test vectors: Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979)
Dec
12
comment Decrypt all RSA ciphertexts if you can break 1% of them
I didn't mean your cross-post, but some older question.
Dec
12
comment Decrypt all RSA ciphertexts if you can break 1% of them
Do we have a duplicate of this question? I thought I already read an equivalent question, but couldn't find it.
Dec
12
answered Decrypt all RSA ciphertexts if you can break 1% of them
Dec
11
comment Probability of factoring keys as a function of bit length
Similar question: How many RSA keys before a collision?
Dec
11
revised rotational cryptanalysis on modulo multiplication?
edited tags
Dec
11
comment RSA or Paillier is good?
I suspect you have a misunderstanding about what homomorphic encryption with RSA or Paillier achieves. Encrypting files like that is almost certainly not useful.
Dec
11
revised 2048-bit RSA Decryption
rolled back to a previous revision
Dec
9
comment Is a strong block cipher usable as a strong sponge function?
What's a bit annoying here is that you need to make relatively strong assumptions about the block cipher, not just that it's a PRP.
Dec
8
awarded  Popular Question
Dec
5
comment Is there (this) a case in which salting is dispensable?
Salting prevents many multi-target attacks, not just rainbow tables.
Dec
5
revised Initialize the eight working variables SHA256
edited tags
Dec
4
revised Will X9.31 remain a secure & acceptable deterministic random generator beyond 2015?
added 9 characters in body
Dec
4
comment SHA1 - SSL/TLS Cipher Suite
@crypto-learner The attacker would get the CA to look the harmless looking one of the colliding pair and then use the malicious one with the same signature.
Dec
4
revised Using machine-learning techniques for data-dependent operations in ciphers
added 2 characters in body
Dec
4
reviewed Edit Point decompression on an elliptic curve