David Wachtfogel

2,911 reputation

119

bio	website	goodenoughsecurity.blogspot.c…
	location	Jerusalem, Israel
	age	39
visits	member for	9 months
	seen	Mar 13 at 7:51
stats	profile views	47

Digital security professional and manager. Work on chip hardware security (smart cards, USB tokens, consumer electronics), DRM, proprietary cryptography and protocols, embedded software security, end-to-end system security and security policy.

IT security (especially password security) is a hobby.

	2,911 reputation	bio	website	goodenoughsecurity.blogspot.c…	visits	member for	9 months
119 badges		location	Jerusalem, Israel		seen	Mar 13 at 7:51

summary answers questions tags badges favorites bounties reputation activity

59 Answers

votes activity newest

18	Are there really functioning quantum computers?
16	How can you judge the physical security of a padlock?
14	Why do some sites prevent users from reusing their old passwords?
11	Is it safe to use a weak password as long as I have two-factor authentication?
11	Client side password hashing

2,911 Reputation

+10	Computing RSA 1024-bit Decryption Performance
+10	Why do some sites prevent users from reusing their old passwords?
+10	What is SHA-3 and why did we change it?
+10	Calculating complex password entropy?

1 Question

votes activity newest

5	Average number of exploitable bugs per thousand lines of code?

85 Tags

67 passwords × 13	25 certificates × 3
42 ssl × 6	22 hash × 5
38 encryption × 11	21 public-key-infrastructure × 2
38 cryptography × 8	19 physical × 3
32 authentication × 6	18 web-application × 5