Ricky Demer

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30 Answers

newest activity votes
6
For public-key encryption, why does COA resistance imply CPA resistance?
4
Proof of work for standard computers
4
Standard symbol / notation for “x knows y”, or the inverse
3
Security of Salsa20 with some known plaintext?
3
How to compare two datasets „anonymously”?
3
Tamper-proofing log files
3
Combining AEAD with RSA
3
How to require two keyholders to decrypt a document?
2
GPG and PAR2 error correction data from the plain archive, will it compromise security?
2
Using encryption schemes for identification
2
Algorithm to securely exchange identities
1
Why this k parameter is in unary in adversary PPT algorithm?
1
Have I understood pedersen commitment correctly?
1
Which public key was used. PGP
1
A lower bound on the insecurity of CipherCloud?
1
What crypto system allows for 3 parties: Party 1 who makes an assertion, Party 2 mutates the assertion, Party 3 validates it
1
Diffie-Hellman key agreement with both Server Authentication and Perfect Forward Secrecy
1
Obtaining a key that's using ice algorithm
1
What are alternatives to the random oracle model for modelling hash functions?
1
Comparing plaintext to contents of ciphertext
1
Data-validating protocol
1
What are open problems in cryptography?
1
Threshold Secret sharing - How to create a shared secret from pre existing secret parts?
0
Is there an authenticated encryption scheme where the recipient can attribute the message to a single sender?
0
Is it possible to ensure security with zero pre-shared information?
0
How do digital certificates work, and why is it not possible to reverse engineer one from a signed file?
0
Is my HMAC secure if I have a complete series of HMAC'd prefix strings
0
Does a public key absolutely need to be used to initiate an encrypted session?
0
How can I store a combination of multiple pass phrases?
-1
Non-Interactive Zero-Knowledge-Proof for discret Logarithm?