how md5 byte array in ruby?

Question

in NodeJS:

>var md5 = require('md5')
>md5([1])
55a54008ad1ba589aa210d2629c1df41

in Ruby:

pry(main)> Digest::MD5.hexdigest [1]
TypeError: no implicit conversion of Array into String
from (pry):20:in `digest'

I am trying to use 'Array#pack' to convert a byte array to big-endian 32-bit words in:

pry(main)> Digest::MD5.hexdigest [1].pack('L*')
=> "4352d88a78aa39750bf70cd6f27bcaa5"

But result is different with nodejs, I am not familiar with byte operation, Please let me know how to use ruby to get same result with nodejs

Aleksei Matiushkin · Accepted Answer · 2017-03-03 13:14:32Z

1

 ▶ Digest::MD5.hexdigest [1].pack 'U*'
 #⇒ "55a54008ad1ba589aa210d2629c1df41"

edited Mar 3, 2017 at 13:14

answered Mar 3, 2017 at 13:00

Aleksei Matiushkin

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3 Comments

Moon soon Over a year ago

thanks for your reply, but result different when array contain multiple elements, like [1,2,3]

Aleksei Matiushkin Over a year ago

Different means what? Your question is not marked with node and I have no idea how this piece of code treats md5-ing arrays of integers. Anyway, corrected my answer, please check.

Moon soon Over a year ago

thank you, [1].pack 'U+' is right, but [1].pack 'U+' and [1,2,3].pack 'U+' are same result, the result should be different when byte array different

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