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1d ago
What is the fastest elliptic curve operation f(P) in affine coordinates such that f^n(P)=P only if n is large?
— Richard
61
may 18 at 21:33
Are there any hand ciphers not obsoleted by computer cryptanalysis?
— Luke Sheppard
1283
may 17 at 22:32
What are the potential security impacts of using CRAM-MD5 for Emails, when not using an SSL connection?
— e-sushi
3210
may 16 at 23:35
Is this a sensible cryptographic protocol intending to reduce the impact of compromised security?
— Matt Fellows
1064
may 16 at 22:10
Help me describe/identify this challenge-response protocol/algorithm?
— Cybergibbons
1064
may 8 at 20:23
How to derive formulas for addition and multiplication in Jacobian coordinates
— user6784
112
may 3 at 23:44
Requiring a “supervisor” key pair and a “user” key pair to decrypt multiple-recipient messages
— Earlz
1063
may 3 at 23:34
Encrypt a single file, chunk-by-chunk, each chunk using different key (AES)
— tcboy88
83
may 1 at 18:16
Knowing a valid salted hash for an unknown secret, is it possible to compute another valid hash?
— Claudio Floreani
1183
apr 23 at 20:16
How secure is passing a MAC to Python's random.seed before using random.choice to generate a MAC?
— Andrey Fedorov
1186