sharptooth

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4 Questions

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4	Do I have to recompute all hashes if I change the work factor in bcrypt?
3	What's the reason for applying the hash twice when hashing with salt?
1	How do I demonstrate that a PRNG not designed for cryptography is not suitable for generating passwords?
0	Is rainbow table attack applicable to any hash?

147 Reputation

+20	Do I have to recompute all hashes if I change the work factor in bcrypt?
+15	What's the reason for applying the hash twice when hashing with salt?
+10	Attack vectors introduced by compilers
-2	What alphanumeric string length can be used to guarantee no hash collisions from CRC-64?

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2 Answers

votes activity newest

1	Attack vectors introduced by compilers
-2	What alphanumeric string length can be used to guarantee no hash collisions from CRC-64?

9 Tags

1 timing-attacks	0 random-number-generator
0 passwords × 2	0 salt
0 bcrypt	-2 hash × 3
0 cryptanalysis	-2 crc
0 implementation

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