Keep encrypted AWS credentials for use in interactive BASH shell

awscreds.sh

# encrypted AWS credentials
# call this script via source command, such as:
#   . awscreds.sh
# to include AWS environment credentials in your interactive shell to
# run AWS tools.
#
# ENCRYPTED_VARS is a base64-encoded, AES-encrypted set of exported
# AWS_ACCESS_KEY and AWS_SECRET_KEY. You can encode them this way:
# 
# openssl aes-256-cbc -salt -a <<EOF
# export AWS_ACCESS_KEY=whatever
# export AWS_SECRET_KEY=whatever
# EOF
#
# and enter a passphrase twice. Then put the output into ENCRYPTED_VARS

ENCRYPTED_VARS="U2FsdGVkX18A/6f0Qe1T51cCbpoQ4GmCBs503QMQ+NMFSPHlRF2SaXbfaQpz0lH6
4x37fC6fY9g0Xd+KvI5GV+gN8RNXbWPFZU371lYUb/k="

eval $(openssl aes-256-cbc -d -a <<EOF
${ENCRYPTED_VARS}
EOF
)

export AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY}
export AWS_SECRET_ACCESS_KEY=${AWS_SECRET_KEY}
export EC2_URL=http://ec2.us-east-1.amazonaws.com
export EC2_REGION=us-east-1