- Pharo-users - lists.pharo.org

Re: [Pharo-users] CogVM version

by Igor Stasenko

On 1 October 2012 04:50, Francois Stephany <tulipe.moutarde(a)gmail.com> wrote: > I've downloaded the Cog-mac.zip from: > http://www.pharo-project.org/pharo-download/unstable-2-0 > > How can I find out the version/revision number? It would be cool to have the > number in the file name. > Smalltalk vm version. We also soon add the jenkins build number to version info. -- Best regards, Igor Stasenko.

Oct. 1, 2012

CogVM version

by Francois Stephany

I've downloaded the Cog-mac.zip from: http://www.pharo-project.org/pharo-download/unstable-2-0 How can I find out the version/revision number? It would be cool to have the number in the file name.

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by Paul DeBruicker

On 09/30/2012 06:16 PM, sergio_101 wrote: >> First step is to get the correct SHA256 part then the second step is to make >> it the correct HMAC >> >> Does that help? > > i am not sure.. i think i need to dig around more in the crypto > package.. i have the sha256 part.. an i see the hmac code.. i think i > just have to figure out how to put them together.. > > thanks! > > This is what I've used before: hmacSHA256: aString key: aKey ^ (SHA256 new hmac) key: aKey asByteArray; digestMessage: aString asByteArray Took me a bit to find an image with it.

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by sergio_101

> First step is to get the correct SHA256 part then the second step is to make > it the correct HMAC > > Does that help? i am not sure.. i think i need to dig around more in the crypto package.. i have the sha256 part.. an i see the hmac code.. i think i just have to figure out how to put them together.. thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by Paul DeBruicker

You need an HMAC signed SHA256 secret. https://en.wikipedia.org/wiki/HMAC https://en.wikipedia.org/wiki/SHA-2 First step is to get the correct SHA256 part then the second step is to make it the correct HMAC Does that help? On 09/30/2012 06:00 PM, sergio_101 wrote: >> SHA256 hashMessage: ('test' , 'APIKey') hex >> >> > > that's what i initially thought.. but the php code they show is a > little bit different.. > > the line that puts it together is: > hash_hmac('sha256', $payload, $secret, $raw = true) > > in this case: > > parameters are: > algorithm > string to be hashed > Shared secret key used for generating the HMAC variant of the message digest. > When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits. > > so, i think i need to use the apiSecret as the key for encryption.. >

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by sergio_101

> SHA256 hashMessage: ('test' , 'APIKey') hex > > that's what i initially thought.. but the php code they show is a little bit different.. the line that puts it together is: hash_hmac('sha256', $payload, $secret, $raw = true) in this case: parameters are: algorithm string to be hashed Shared secret key used for generating the HMAC variant of the message digest. When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits. so, i think i need to use the apiSecret as the key for encryption.. -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by Francois Stephany

I havent checked the Facebook API but don't you simply need to concatenate your key with the text you need to hash ? SHA256 hashMessage: ('test' , 'APIKey') hex ? On 30/09/12 15:00, sergio_101 wrote: > hey, all... > > i installed the Cryptography library, and can produce a has like: > > SHA256 hashMessage: 'test' hex. > > the problem i am running into is, i need to generate the SHA256 with > my AppKey from facebook. i can't figure out how to generate a hash > using a secret key. > > i tried looking through the source code, but couldn't find anything for SHA256.. > > any ideas? > > thanks! > >

Oct. 1, 2012

SHA256 hashing with secret key..

by sergio_101

hey, all... i installed the Cryptography library, and can produce a has like: SHA256 hashMessage: 'test' hex. the problem i am running into is, i need to generate the SHA256 with my AppKey from facebook. i can't figure out how to generate a hash using a secret key. i tried looking through the source code, but couldn't find anything for SHA256.. any ideas? thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Sept. 30, 2012

Re: [Pharo-users] get the first n elements of an Collection

by Sven Van Caekenberghe

On 29 Sep 2012, at 12:22, Damien Cassou <damien.cassou(a)gmail.com> wrote: > for these kinds of queries, never forget to check streams: > > aCollection asStream next: 10 > > In this case you can use #first: as others stated, but in many other > cases streams will be the only way to solve your problem. Yes, that is a good idea as well, and not even as inefficient as it seams. But the selector is #readStream (or #writeStream). Actually, using ReadStream class>>#on:from:to: can solve lots of problems efficiently as well. -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

Sept. 29, 2012

Re: [Pharo-users] get the first n elements of an Collection

by Damien Cassou

On Thu, Sep 27, 2012 at 5:49 PM, sergio_101 <sergio.rrd(a)gmail.com> wrote: > for whatever reason, i couldn't seem to find that in > SequenceableCollection. but after your posts, i did a search, and it > was there.. my bad.. for these kinds of queries, never forget to check streams: aCollection asStream next: 10 In this case you can use #first: as others stated, but in many other cases streams will be the only way to solve your problem. -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

Sept. 29, 2012