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Bitcoin Forum > Bitcoin > Development & Technical Discussion > if I sign a message with a private key, SHA256, and RIPEMD160 protection lost?
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Author Topic: if I sign a message with a private key, SHA256, and RIPEMD160 protection lost?  (Read 582 times)
jubalix (OP)
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July 28, 2017, 11:29:14 PM
Last edit: July 29, 2017, 12:40:59 AM by jubalix
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 #1
if I sign a message with a private key is SHA256, and RIPEMD160 protection lost for that address?
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achow101
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July 28, 2017, 11:45:04 PM
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Yes. Signing anything will reveal the public key.
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July 29, 2017, 01:23:13 AM
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Quote from: achow101 on July 28, 2017, 11:45:04 PM
Yes. Signing anything will reveal the public key.

The wallet address which is the public key is revealed..
what of the private key itself..hope it is safe ??
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July 29, 2017, 03:02:54 AM
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Quote from: yinoye on July 29, 2017, 01:23:13 AM
what of the private key itself..hope it is safe ??
The private key is never revealed in signatures. Otherwise Bitcoin wouldn't be secure as signatures are used in transactions.
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July 29, 2017, 07:14:29 AM
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Quote from: yinoye on July 29, 2017, 01:23:13 AM
The wallet address which is the public key is revealed..
what of the private key itself..hope it is safe ??

Wallet address it is not the public key by itself. If for a simple it's public key hash.
You may not afraid about private key. Ask yourself: what does signature is by itself? If for a simple it's encrypted hash of private key. You can't reestablish private key through signature.
In science we trust!
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