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May
1
reviewed Leave Open Definition of the term “key”
May
1
reviewed Close Does Paillier Cryptosystem work in different message space?
Apr
26
answered Asymmetric cipher with multiple public keys
Apr
26
answered Password length versus hash length?
Apr
26
reviewed Leave Open How to decrypt a '.enc' file that has been encrypted with RSA using a public key?
Apr
25
reviewed Leave Open Why cant I use ECB with some obfuscation for random access data stored in say a DDR
Apr
24
comment Asymmetric cipher with multiple public keys
Why can't all the verifiers receive the same public key? Do you need it to be difficult to tell whether two public keys correspond to the same private key? It would seem that being able to verify the same message would give it away. If you sign a message and then generate more public keys, do the new public keys need to be able to verify the signature?
Apr
24
revised Asymmetric cipher with multiple public keys
added 34 characters in body; edited tags; edited title
Apr
23
reviewed Approve Why use randomness in digital signature algorithms?
Apr
20
comment Multiple AES/ECB encryptions of different data with same key all end with same pattern
Your question is incomprehensible. You should give an example with some sample plaintexts and the corresponding ciphertexts, and explain exactly how they're computed (like you did in your comment, but it's unreadable due to the lack of formatting: edit your question). Also tell us how you're generating the IV.
Apr
20
reviewed Leave Closed Multiple AES/ECB encryptions of different data with same key all end with same pattern
Apr
18
revised Why does applying 56-bit DES twice only give 57 bits of security?
smaller value of 5
Apr
17
reviewed Edit What does L_n is the bit length of the group order n states need for my calculation in ECDSA algorithm?
Apr
17
revised What does L_n is the bit length of the group order n states need for my calculation in ECDSA algorithm?
formatted a bit nicer
Apr
8
answered Creating unique keys with md5
Apr
4
reviewed Leave Open Decrypt files with original file CTB-Locker
Apr
4
reviewed Leave Open What is the purpose of pre master secret in SSL/TLS?
Apr
4
comment What is the purpose of pre master secret in SSL/TLS?
@MaartenBodewes I disagree: this is not an IT security question, it's a protocol design question. Protocol design is cryptography.
Apr
3
reviewed Leave Open Required key size for an ideal cipher with a 32 bit block size
Apr
3
reviewed Leave Open Paper about this secure P2P idea?