Cryptography How important is it that large primes are actually prime? |
- How important is it that large primes are actually prime?
- Bitcoinus(BIS)
- Please help with understanding RSA/Public Key encryption (noob question)
- EVP AES and padding oracle attack
| How important is it that large primes are actually prime? Posted: 08 Mar 2018 02:09 AM PST I get how you use primes to generate RSA keys. Various methods of finding primes exist but for extremely large primes they seem to be more based on a number having a chance of being prime. How important is this? Do crypto algorithms actually depend on numbers being really truly prime, or is "prime enough" okay? Like, if I pick an arbitrarily large number using one of these algorithms is it sufficient that if the number really turns out to be composite, it is still extremely difficult to find a root for it? Sorry if this is in a FAQ I haven't spotted. Please feel free to point me in the right direction for further reading. [link] [comments]  |
| Posted: 08 Mar 2018 01:45 AM PST |
| Please help with understanding RSA/Public Key encryption (noob question) Posted: 07 Mar 2018 06:44 AM PST |
| EVP AES and padding oracle attack Posted: 07 Mar 2018 01:21 PM PST The state-of-the-art openSSL EVP library lets me init AES with IV and CBC mode. Does it mean that it is still vulnerable to padding oracle attack? Is there any way to request MAC in the initialization, or I have to do it separately? [link] [comments]  |
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