Uwe Plonus
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 Apr16 awarded Informed Apr15 revised Asymmetric encryption that is secure for (almost) any foreseeable future Clarified that the answer is on asymmetric cryptography. Apr15 revised Asymmetric encryption that is secure for (almost) any foreseeable future Corrected spelling Apr15 answered Asymmetric encryption that is secure for (almost) any foreseeable future Apr15 answered Is there a way to use bcrypt with passwords longer than 72 bytes securely? Sep22 awarded Organizer Sep22 comment Random vs. Fixed Paddings @CodesInChaos I don't talk about randomness. If I pad a message with defined bytes then the attacker can try to decrypt the message and know that the decrypted text is right because of the padding... Sep22 answered Random vs. Fixed Paddings Sep18 awarded Custodian Sep18 reviewed Excellent Elliptic Curve Cryptography Sep8 comment Is there an intuitive explanation as to why only the private key can decrypt a message encrypted with the public key? @rubo77 n is an arbitary chosen value. The concrete constraints for this value depends on the algorithm used. Nov10 awarded Yearling Aug6 answered Why should I make my cipher public? Jul30 comment Assuming a 1024qb quantum computer, how long to brute force 1024bit RSA, 256bit AES and 512bit SHA512 For 5: No, it will not take twice the time as a quantum computer must handle all at once and will not be able to be of any use in your case. Jul29 revised Is there an intuitive explanation as to why only the private key can decrypt a message encrypted with the public key? Corrected spelling Jul29 comment Is there an intuitive explanation as to why only the private key can decrypt a message encrypted with the public key? @king_julien That's it. The difficulty to brute force the parts is the basic security of such algorithms. Also there is no inverse for $m^a \mod p$ which makes it difficult to brute force the algorithms. Jul29 revised Is there an intuitive explanation as to why only the private key can decrypt a message encrypted with the public key? Changed formulas to adhere the typical notation Jul29 answered Is there an intuitive explanation as to why only the private key can decrypt a message encrypted with the public key? Jul26 reviewed No Action Needed split up sha256 hash and compare indiv block results Jul26 reviewed No Action Needed Is truncating a SHA512 hash to the first 160 bits as secure as using SHA1?