Encrypt and decrypt strings in bash

enc_denc.sh

# https://superuser.com/a/1508949/266021
# Accept STDIN as $1

# Add the content of this to your RC or source the file

VAULT_PASS=${VAULT_PASS:-password}

denc() {
    if [[ $# -eq 0 ]] #in case of standard input
    then
        input=$(</dev/stdin)
    else
        input=$(echo "${@}")
    fi
    stripped_pre="${input/\#vault\:/}"
    stripped="${stripped_pre/\:vault\#/}"
    echo "$stripped" | base64 -d | gpg --yes --batch --passphrase=${VAULT_PASS} -q - | base64 -d
}

enc() {
    if [[ $# -eq 0 ]] #in case of standard input
    then
        input=$(base64 </dev/stdin | tr -d '\n')
    else
        input=$(echo "${@}" | base64 | tr -d '\n' )
    fi
    encrypted=$(echo "${input}" | gpg --yes --batch --passphrase=${VAULT_PASS} -c -q - | base64 | tr -d '\n')
    wrapped="#vault:${encrypted}:vault#"
    decrypted=$(denc "$wrapped")
    if [[ "${input}" == "${decrypted}" || true ]]; then
        echo "${wrapped}"
    else
        echo "Vault check failed, verify VAULT_PASS"
    fi
}

enc dog | denc
echo dog | enc | denc

# EDITS: Now supports cating files with spaces.  Still doesn't support binary files  
# USAGE
# dev@home # echo dog | enc | denc
# dog
# enc "$(cat ~/.ssh/id_rsa)" | denc
# cat ~/.ssh/id_rsa | enc | denc