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iterate values of hex string
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eggie5
Sep 30, 2012, 2:49:24 AM9/30/12
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Can somebody please suggest a getter way of doing this?
hmac = "0000000000000000000000000000000000000000"
#40 is length of hmac
#255 is values of each byte to try
(0..40).step(2) do |i|
(0..255).each do |j|
hmac[i..i+1]="%02x" % j
p hmac
end
end
It just iterates all the values of a 20 byte array as a string from left to right. e.g.:
000000000000000000000000000000000000000
0100000000000000000000000000000000000000
0200000000000000000000000000000000000000
.
.
.
FD00000000000000000000000000000000000000
FE00000000000000000000000000000000000000
FF00000000000000000000000000000000000000
.
.
.
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
hmac = "0000000000000000000000000000000000000000"
#40 is length of hmac
#255 is values of each byte to try
(0..40).step(2) do |i|
(0..255).each do |j|
hmac[i..i+1]="%02x" % j
p hmac
end
end
It just iterates all the values of a 20 byte array as a string from left to right. e.g.:
000000000000000000000000000000000000000
0100000000000000000000000000000000000000
0200000000000000000000000000000000000000
.
.
.
FD00000000000000000000000000000000000000
FE00000000000000000000000000000000000000
FF00000000000000000000000000000000000000
.
.
.
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Robert Klemme
Sep 30, 2012, 11:22:31 AM9/30/12
to
On 30.09.2012 08:49, eggie5 wrote:
> Can somebody please suggest a getter way of doing this?
Did you mean "better"?
> Can somebody please suggest a getter way of doing this?
You get a different order though.
What do you need that for?
robert
--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/
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