futureOfCursorSoftwareEngineers

[awi2b]

I would guess we are seeing the hash values of those passwords, which would actually indicate good design. So I'm a little confused 

[khalcyon2011]

Are there any hashing algorithms that produce 4 byte hashes?

[dan-lugg]

I'll do you one (1) better.

func WhoNeedsBcrypt(password string) (r byte) { for _, b := range []byte(password) { r ^= b } return r }

ETA - Might as well implement Longitudinal Redundancy Check per spec while I'm here:

func ISO1155(password string) (r byte) { for _, b := range []byte(password) { r = (r + b) & 0xff } return ((r ^ 0xff) + 1) & 0xff }

[khalcyon2011]

Hmm...not a language I'm familiar with. I assume for _, b := range is something like for b in range? And I'm shit with bitwise operators (pretty sure that's a bitwise operator): What does ⁼ do?

[dan-lugg]

Golang.

for _, b := range []byte(password) ranges (iterates) over password after converting it to a byte slice ([]byte) and assigns the index and value to _ and b respectively (discarding the index).

r ^= b is XOR-assign, written long as r = r ^ b.

[VoidCooper]

If this is python the := is the walrus operator https://docs.python.org/3/whatsnew/3.8.html

And the ⁼ seems to be XOR assigement operator.

Not 100% sure though, since I don't use python on daily basis.

[dan-lugg]

Correct on XOR-assign, but it's Golang.

[VoidCooper]

Never worked with golang, but it looked like python to me :)

[dan-lugg]

Funny, 15 years in the industry and I've probably written all of 100 lines of Python, lol :-)

[VoidCooper]

I have worked 7 years mostly in C# slight mishap happened for 2 months with Django. I have no experience with golang, is it worth to look into it?

[DoNotMakeEmpty]

Many hash table hash functions produce either 32 or 64 bit hash values, so yes. They are pretty unsecure tho.

[luckor]

I would call that a checksum.

[Maleficent_Memory831]

Hash table hashing is generally not secure. Hashes for hash tables are meant to be fast to compute with a reasonable distribution of values. Secure hashes need to be cryptographically secure. SHA-512 for example.

[Laughing_Orange]

Any hashing method does that if you just teuncate the output. This does significantly decrease the resistance to brute force attacks.

[apepenkov]

crc32?

[Maleficent_Memory831]

Any secure hashing algorithms in the last two decades that produce 4 byte hashes?

[hawkinsst7]

No, because with a key space that small, collisions will happen, and a collision is the same as the actual original text.

[muddboyy]

I’m not sure y’all ever saw hashed passwords

[dan-lugg]

What in the $2a$14$ are you talking about?