Testkeys were created with:
    openssl genrsa -out testkey-priv.pem 3072
    openssl rsa -in testkey-priv.pem -out testkey-pub.pem -outform PEM -pubout


Certificate List was created manually and contains:
    PCA-1-Verwaltung-08
    Intevation-Email-CA-2013
    Intevation-Server-CA-2010

Signature created with:

    echo -e S:$(openssl dgst -sha256 -sign testkey-priv.pem < list-valid.txt | base64 -w0)\\r > list-valid-signed.txt
    cat list-valid.txt >> list-valid-signed.txt
    cp list-valid-signed.txt list-invalid-signed.txt
    tail -1 list-valid.txt >> list-invalid-signed.txt

Random Data generated with:
    openssl rand -out random_2MB 2000000
    openssl rand -out random_500k 500000