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  • 59 votes cast
Feb
28
reviewed Close Explanation of multivariate cryptography
Feb
28
reviewed Close Multiple keys for the same ciphertext
Feb
7
reviewed No Action Needed Trivium example
Feb
5
awarded  Custodian
Feb
3
reviewed Leave Closed Kryptos K2 keyword derivation
Feb
2
reviewed Leave Open Hardness assumptions on composite order bilinear groups
Feb
2
awarded  Custodian
Feb
2
reviewed Leave Closed Decrypt a message which is encrypted using XOR?
Jan
13
reviewed Leave Open Automated testing of cipher security for import/export compliance
Jan
13
awarded  Custodian
Jan
13
reviewed No Action Needed How does asymmetric encryption work?
Jan
13
awarded  Custodian
Jan
13
reviewed No Action Needed ASN.1 encoding off RSASSA-PSS default parameters
Jan
13
reviewed Close Entropy in relation to computer security
Jan
13
answered Implementing a web app where the server cannot decrypt its own data?
Jan
13
comment Key derivation of public key without knowledge of private key?
Yep. ten letters
Jan
12
comment Key derivation of public key without knowledge of private key?
The Elgamal signature scheme is quite different from the Elgamal encryption scheme. This idea won't work for Elgamal signatures, indeed, it can't work for any signature scheme.
Jan
12
comment Key derivation of public key without knowledge of private key?
Any encryption of $1$ can be used as a public key. The extra per-key information is not needed, as the same decryption key can be used for all the public keys made in this way.
Jan
11
awarded  Custodian
Jan
11
reviewed Close private keys for multiple devices