User ThePiachu - Cryptography Stack Exchange

ThePiachu

Member for 12 years, 2 months
Last seen more than 4 years ago

tpbitcalc.appspot.com
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20 Questions

Score Activity Newest Views

30 votes

1 answer

19k views

How strong is the ECDSA algorithm?

asked Apr 28, 2012 at 22:14

19 votes

3 answers

7k views

Are there any secure commutative ciphers?

asked Mar 3, 2013 at 21:53

14 votes

3 answers

12k views

How can I calculate the SHA-256 "midstate"?

asked Feb 16, 2012 at 6:24

12 votes

2 answers

8k views

Are there any Secp256k1 ECDSA test examples available?

asked Sep 25, 2011 at 23:07

11 votes

4 answers

6k views

What is the largest performed/possible bruteforce attack to date?

asked Apr 9, 2012 at 21:00

9 votes

3 answers

1k views

Is there some way to generate a non-predictable random number in a decentralised network?

asked Feb 15, 2012 at 7:47

7 votes

1 answer

4k views

Hashing passwords with a salt - why use different salt for everyone?

asked Jan 25, 2013 at 12:54

6 votes

1 answer

2k views

Security of Pohlig-Hellman exponentation cipher?

asked Mar 2, 2013 at 17:22

6 votes

1 answer

772 views

How to properly add ECDSA private keys?

asked May 31, 2012 at 23:29

6 votes

2 answers

8k views

How to generate a public key from a private ECDSA key?

asked Dec 18, 2012 at 11:07

6 votes

1 answer

372 views

How can I use Weierstrass curve operations with a=-3 for implementing operations for a=0?

asked Sep 25, 2011 at 23:28

5 votes

1 answer

295 views

Academic papers on ECDSA security

asked Nov 5, 2011 at 2:17

5 votes

2 answers

826 views

What is the canonical way of creating Merkle tree branches?

asked Jan 11, 2016 at 20:10

4 votes

1 answer

499 views

How can I store confident data with OpenID?

asked Oct 15, 2011 at 0:14

3 votes

1 answer

248 views

A set of key pairs and one hash to secure them

asked Sep 27, 2011 at 14:22

3 votes

3 answers

597 views

Secure communication between multiple peers on a public channel

asked Jan 24, 2013 at 14:39

2 votes

1 answer

2k views

Where can I find Secp256k1 ECDSA test vectors?

asked Sep 27, 2011 at 16:25

2 votes

1 answer

321 views

Proof of work for determining whether a number is prime?

asked Jun 29, 2013 at 8:31

1 vote

1 answer

116 views

Safety when disclosing hashes of secrets used to calculate other secrets

asked Oct 19, 2013 at 20:42

-1 votes

1 answer

704 views

How to secure a mental poker protocol? [closed]

asked Mar 4, 2013 at 5:49