It's not possible to do at the moment but will be available in the future as stated here : https://support.blockchain.com/hc/en-us/articles/210353833-What-is-message-signing-and-how-can-I-do-that-
In the meanwhile , you could export them and import them into another wallet to sign a message , this guide should work for you https://docs.google.com/document/d/1-2l6xOqcbjs9QWEqSh72RD1d8EEdvG_hQuEXw_f_o6w/edit (Link was originally posted by Quickseller on the forums)
Topic: New Blockchain wallet sign message (Read 409 times)
Get the private keys of the addresses you want to sign with, import them to electrum or some other wallet and sign from there.
To get your private keys, read this post (and the link I included there).
To get your private keys, read this post (and the link I included there).
How do I sign a message with the new blockchain.info. I know how to with the old one but apparently you can't with the new one which is irritating and stupid since it should be a feature. So what must I do now ? Please help.
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