Ilmari Karonen

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2,236 reputation

111

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I'm not really a cryptographer, I just play one on the internet.

Seriously, I'm just a programmer and mathematician interested in puzzles and information security. I don't have any kind of formal crypto training, but I've picked up a few things here and there over the years. Topics I'm particularly interested in include protocol design and analysis, classical ciphers and information-theoretically secure crypto techniques such as one time pads and secret sharing schemes.

	2,236 reputation	bio	website	vyznev.net	visits	member for	8 months
111 badges		location			seen	50 mins ago

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52 Answers

votes activity newest

8	How can I do a brute force (ciphertext only) attack on an CBC-encrypted message?
8	Is there a secure cryptosystem that can be performed mentally?
7	Is there a hash algorithm that is slow to calculate but relatively fast to check?
6	Is compressing data prior to encryption necessary to reduce plaintext redundancy?
6	Key space size when either of two public keys are valid for authentication?

2,236 Reputation

+10	Complexity of ECB and OFB
+10	Assistance Cracking Classical Cipher
+10	Encryption with “constant” initialization vector considered harmful
+10	Is my HMAC secure if I have a complete series of HMAC'd prefix strings

1 Question

votes activity newest

7	Can you make a hash out of a stream cipher?

67 Tags

45 encryption × 12	15 protocol-design × 4
23 cryptanalysis × 7	11 public-key × 3
19 hash × 6	11 hmac × 3
19 brute-force-attack × 4	11 block-cipher × 3
18 modes-of-operation × 5	11 secret-sharing × 3