https://bitcointalksearch.org/topic/how-to-sign-a-message-990345
If this exchange is not Coinbase I don't think there is a way to sign a message with the address. (IIRC Coinbase is the only one that allows you to do so)
If this exchange is not Coinbase I don't think there is a way to sign a message with the address. (IIRC Coinbase is the only one that allows you to do so)
That's correct. All exchanges do not have an option to sign messages apart from Coinbase. At best, you can download a lite wallet e.g. Electrum or use blockchain.info to sign messages if you need to. It's pretty straightforward but be careful on copying the message since any extra letters, symbols, numbers or space may result to your message being unverified.
