And while we're at it, some code to deal with the cumbersome decoding of those hash objects would be nice! Cheers, Aristid Am 07.01.2012 11:07 schrieb "Greg Weber" :

great!

I am wondering if you can provide even higher-level APIs for the common case:

hash <- runResourceT $ hashFile "my-file"

and possibly something that runs the ResourceT transformer:

hash <- runHashFile "my-file"

On Sat, Jan 7, 2012 at 12:16 AM, Felipe Almeida Lessa < felipe.lessa@gmail.com> wrote:

...

Hello!

I'm pleased to announce the first release of crypto-conduit [1]! The crypto-api [2] package provides APIs for many cryptographic operations, such as cryptographic hashes and block ciphers. This new crypto-conduit package allows you to use many of these operations with conduits [3], giving you safe I/O using constant memory and no leaks.

As an example, here's how you could get the SHA1 hash a file:

import Crypto.Conduit -- from crypto-conduit import Crypto.Hash.SHA1 (SHA1) -- from cryptohash import Data.Conduit -- from conduit import Data.Conduit.Binary (sourceFile) -- from conduit

main = do hash <- runResourceT $ sourceFile "my-file" $$ sinkHash print (hash :: SHA1)

The code snippet above, despite having only "sourceFile ... $$ sinkHash" on its core, guarantees that the file handle is not kept open and uses a constant amount of memory. Sweet!

Please break this package! Although it comes with a test suite, it has just seen the light of the day.

Cheers, =)

[1] http://hackage.haskell.org/package/crypto-conduit [2] http://hackage.haskell.org/package/crypto-api [3] http://hackage.haskell.org/package/conduit

-- Felipe.

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Well, how do you get a ByteString from the hash object? Aristid Am 07.01.2012 13:04 schrieb "Felipe Almeida Lessa" :

On Sat, Jan 7, 2012 at 9:12 AM, Aristid Breitkreuz wrote:

...

And while we're at it, some code to deal with the cumbersome decoding of those hash objects would be nice!

I'm sorry, but what do you mean by "cumbersome decoding"?

Cheers, =)

-- Felipe.