Questions tagged [message-recovery]

Message recovery is a feature of some digital signature schemes, whereas some or all of the message signed is embedded in the signature, recovered as part of signature verification, and thus needs not be transmitted.

Filter by
Sorted by
Tagged with
18
votes
1answer
820 views

Message-Recovery variant of Ed25519 signature?

What would be a Message-Recovery variant of the Ed25519 signature scheme? Ed25519-MR should be simple to use, fast, with a strong security argument, and striving to stay out of the patent minefield, ...
10
votes
1answer
6k views

Description of signatures with message recovery (as in ISO/IEC 9796-2 and EMV Signatures)

I'd like to get an overview of how the signatures with message recovery work, especially in case EMV and other smart card systems. Is there a nice overview available without being required to read the ...
1
vote
1answer
369 views

Cryptanalys of "bad" RC4 implementation

I need help of cryptanalyzing a "bad" RC4 implementation to recover an encrypted text of 13742 bytes. I don't know the key and this implementation does not utilize the drop-n routine. But, I know ...