You can securely paste to this site (SSL io) with:

Pastes older than 7 days are removed every day at 8am.

echo "is this thing working?" | ncat --ssl 8888

echo "or the less elegant but more portable solution" | openssl s_client -quiet -connect 2>/dev/null

You can make later pastes easier by adding:
alias sp='ncat --ssl 8888'
alias sp='openssl s_client -quiet -connect 2>/dev/null'
To your ~/.bashrc file and then running source ~/.bashrc

Then simply: cat yourfile.txt | sp

My source code is hosted on GitHub

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