User Global nomad - Cryptography Stack Exchange

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	108 reputation	bio	website		visits	member for	1 year, 6 months
17 badges		location	Portland, OR		seen	Jun 1 at 6:13

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kviews

In the SHA hash algorithm, why is the message always padded?

hash sha1 padding

jun 1 '12 at 16:16 mikeazo♦ 7,916

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Are there any simple and yet secure encryption algorithms?

encryption aes block-cipher algorithm-design

jul 3 '12 at 17:13 Thomas 2,729

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273

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How secure is my OTP program?

random-number-generator stream-cipher one-time-pad

jul 27 at 7:56 CodesInChaos 6,165

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After implementing a novel encryption algorithm, how would one go about analyzing its security or get help from others in doing so?

encryption

may 25 '12 at 20:10 poncho 15.1k

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Is it secure to use the hash of key as the IV in AES encryption?

encryption aes initialization-vector

may 23 '12 at 9:49

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207

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Asymmetric algorithm to generate compact unique messages that can be validated

hash

jun 27 '12 at 13:59 CodesInChaos 6,165

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513

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How can I validate a hashed password if all I have is another hash?

hash passwords authentication

dec 2 at 6:01 AsheeshR 111

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CBC - a canonical mode, even though there are streaming modes

block-cipher modes-of-operation symmetric stream-cipher

jun 6 '12 at 20:06 Paŭlo Ebermann♦ 9,884

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Are there any differences between PIR, oblivious transfer and differential privacy?

oblivious-transfer

jun 18 '12 at 20:44 Paŭlo Ebermann♦ 9,884

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149

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Can I jettison MAC if I already have SHA1(M)?

encryption hash mac integrity

jul 29 at 22:10 D.W. 8,825

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157

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RSA algorithm's license free or paid?

rsa

jul 9 '12 at 16:40 fgrieu 10.7k

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199

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Is there any recent cryptographic algorithm especially designed for low-level processors?

encryption

jul 20 '12 at 11:59 fgrieu 10.7k

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599

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Why is the IV passed in the clear when it can be easily encrypted?

encryption initialization-vector

nov 29 at 21:50 owlstead 670

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238

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Is ECB mode secure if plaintexts guaranteed to be unique?

encryption block-cipher ecb

jun 19 '12 at 5:38 fgrieu 10.7k

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163

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Does Identity-Based Encryption actually solve any problem?

diffie-hellman key-exchange pairings

jun 18 '12 at 15:59 poncho 15.1k

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239

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Do Cryptographic Hashing Algorithms operate only on Integers?

hash algorithm-design

oct 22 at 19:46 Paŭlo Ebermann♦ 9,884

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464

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What is the relation between Discrete Log, Computational Diffie-Hellman and Decisional Diffie-Hellman?

diffie-hellman discrete-logarithm

jun 11 at 16:00 Paŭlo Ebermann♦ 9,884

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206

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Is quantum key distribution safe against MITM attacks too?

keys quantum-cryptography

may 29 '12 at 20:31 fgrieu 10.7k

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130

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Safely use CryptSignAndEncryptMessage?

encryption rsa signature authenticated-encryption

may 30 '12 at 18:36 mikeazo♦ 7,916

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208

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LFSR dynamic mutation

stream-cipher lfsr

feb 17 at 11:06 Paŭlo Ebermann♦ 9,884

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When to prefer exchanging cryptographic certificates over exchanging only public keys?

public-key rsa signature

jun 1 '12 at 1:10 Dave 111

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202

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Algorithm to securely exchange identities

public-key homomorphic-encryption

jun 29 '12 at 1:20 David Cary 898

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797

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In which order are the round keys used during AES decryption?

encryption aes block-cipher

may 28 '12 at 19:26 Paŭlo Ebermann♦ 9,884

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Is the “Signed on date” of a PGP Signature Verified?

signature pgp

jun 19 '12 at 21:29 Jon Callas 895

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638

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What is the difference between CBC and GCM mode?

encryption modes-of-operation

apr 9 '12 at 2:42 poncho 15.1k

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235

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DGK Cryptosystem Encryption Speedup

public-key homomorphic-encryption

may 21 '12 at 15:01 Mihai Todor 207

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183

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Regarding matsui's Paper on Linear Cryptanalysis of DES

cryptanalysis des

jun 20 '12 at 15:42 cryptopathe 547

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108

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Byte location of plaintext vs ciphertext when using a block cipher or stream cipher

block-cipher

jun 23 '12 at 5:56 Thomas 2,729

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kviews

How do I store encrypted files on a web server and decrypt them locally?

aes passwords pbkdf-2 host-proof

aug 18 at 12:44 Eyal 175

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170

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Looking for cipher that uses one ciphertext

encryption cipher

jun 12 '12 at 17:33 David Cary 898

Global nomad

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