Reputation
20,864
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19/20 answers
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~572k people reached

Apr
6
revised Toy public/private key example open to frequency analysis?
added 47 characters in body
Apr
6
revised Hash functions to the power of two and three notation
added 7 characters in body
Apr
6
answered Toy public/private key example open to frequency analysis?
Apr
4
revised What is the purpose of pre master secret in SSL/TLS?
deleted 1 character in body
Apr
3
comment Is the keystream transmitted with the ciphertext when a stream cipher is used?
@l30n1d45 yes and yes.
Apr
3
comment Is the keystream transmitted with the ciphertext when a stream cipher is used?
@l30n1d45 the keystream is random if you do not know the key. If you know the key, however, the keystream is completely deterministic. So, as long as the recipient knows the key, they can produce the exact same keystream.
Apr
3
comment Is the keystream transmitted with the ciphertext when a stream cipher is used?
@l30n1d45 More or less. Look at the description of RC4. It really just outputs random bytes. Encryption and decryption happen by using a simple XOR. So, some might say RC4, by itself is not the encryption/decryption algorithm since it requires the XOR to really get encryption/decryption. Depends on how pedantic you want to be.
Apr
3
answered Is the keystream transmitted with the ciphertext when a stream cipher is used?
Apr
2
reviewed Approve What's the differences among Blind Computation, Secure Multi-Party Computation, Secure Circuit Evaluation and Homomorphic Encryption
Apr
2
comment Is there a need to encrypt data when send over https?
Does an attacker have access to that same certificate? I'm not quite sure what you are asking. If you give away your private key, then of course your security is compromised.
Apr
2
reviewed Leave Open Cryptography system by combining a block cipher and a stream cipher
Apr
2
reviewed Leave Open NTRU Encryption
Apr
2
reviewed Leave Open Security analysis of Spritz?
Apr
2
reviewed Leave Open What are the vulnerabilities of this homemade encryption algorithm?
Apr
2
reviewed Leave Open What's the differences among Blind Computation, Secure Multi-Party Computation, Secure Circuit Evaluation and Homomorphic Encryption
Apr
2
reviewed Close Searching over encrypted data
Apr
2
comment In what countries am I now allowed to talk about technical details of cryptography?
Related: stackoverflow.com/questions/1660186/…
Apr
2
comment In what countries am I now allowed to talk about technical details of cryptography?
I doubt there are very many experts in international law on this site. Not sure where would be the best place to go, however.
Mar
25
answered Are modes of operation algorithms practical?
Mar
20
comment Necessity for finite field arithmetic and the prime number p in Shamir's Secret Sharing Scheme
@ampersand is there something missing in the PDF that is downloaded on the left hand side? It appears to be the whole thing to me.