Cryptography Breaking RSA OAEP with Manger’s attack |
- Breaking RSA OAEP with Manger’s attack
- FIDO Alliance and W3C Achieve Major Standards Milestone in Global Effort Towards Simpler, Stronger Authentication on the Web
- Effect of digest truncation on preimage resistance and entropy
- A question about IND-CCA2
- Noob Q on DES
| Breaking RSA OAEP with Manger’s attack Posted: 10 Apr 2018 04:15 PM PDT |
| Posted: 10 Apr 2018 07:18 AM PDT |
| Effect of digest truncation on preimage resistance and entropy Posted: 11 Apr 2018 12:51 AM PDT Let's say I hash a message through SHA512, does truncating the hash to 256 bits alter the preimage resistance? What happens if I feed 256-bit value through SHA512 and truncate the output to 256-bits - does it take away entropy from the value? [link] [comments]  |
| Posted: 10 Apr 2018 11:48 AM PDT Is submitting non-valid ciphertexts to the decryption oracle allowed? I can't find anything that says I can or cannot do that. Most explanations I find typically say something along the lines of "you may make calls to the decryption oracle, but may not submit the challenge ciphertext" [link] [comments]  |
| Posted: 10 Apr 2018 12:09 PM PDT Q1. why permutaions on inputs or otherwise needed in algorithms like des? Q2. its said that sbox implementation is present in des to introduce randomness, but how is it random since the sbox implementation specification in des is known to all? [link] [comments]  |
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