A shell script to write a dummy CommonCrypto.framework module into the directory where playgrounds look for frameworks.

CommonCryptoHack

#!/bin/bash
if [[ $BASH_SOURCE != $0 ]]; then echo "$BASH_SOURCE must be executed, not sourced."; return 255; fi
#
# A script to fool iOS playgrounds into allowing access to CommonCrypto
#
# The script creates a dummy CommonCrypto.framework in the SDK's System
# Framework Library Directory with a module map that points to the
# umbrella header
#
# Usage:
# ./CommonCryptoHack
#
# Don't forget to chmod the script first!
# The script depends on xcrun to find the SDK directory
#

# Find the SDK path and make sure it exists
SDK_PATH=`xcrun --sdk iphonesimulator8.0 --show-sdk-path`
if [ ! -e $SDK_PATH ] ; then
  echo "ERROR: The SDK path '$SDK_PATH' did not exist"
  exit 1
fi

# Only proceed if there is *not* a CommonCrypto.framework already
CC_PATH=$SDK_PATH/System/Library/Frameworks/CommonCrypto.framework
if [ -e $CC_PATH ] ; then
  echo "ERROR: CommonCrypto.framework already exists"
  exit 1
fi

# Check the CommonCrypto header is where I expect it to be
HEADER_FILE=$SDK_PATH/usr/include/CommonCrypto/CommonCrypto.h
if [ ! -e $HEADER_FILE ] ; then
  echo "ERROR: The CommonCrypto.h head file could not be found."
  exit 1
fi

mkdir $CC_PATH

# Write the module.map file
cat <<_IDZ_EOF_ > $CC_PATH/module.map
module CommonCrypto [system] {
  header "$HEADER_FILE"
  export *
}
_IDZ_EOF_