libghc-crypto-conduit-dev software package provides conduit interface for cryptographic operations, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libghc-crypto-conduit-dev
libghc-crypto-conduit-dev is installed in your system.
Make ensure the libghc-crypto-conduit-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-crypto-conduit-dev *
You will get with libghc-crypto-conduit-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Haskell |
| Package | libghc-crypto-conduit-dev |
| Version | 0.5.4-1+b2 [amd64, armel, armh |
| Description | conduit interface for cryptographic operations |
| Sub Section | Haskell |