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Why is SHA256 used as a layer on top of Digital Signature

Why is SHA256 used as layer on top of Digital Signature Hashing (could be any secure cryptographic hash) messages before the digital signature goes back to the early history of Digital signatures. ...
kelalaka's user avatar
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Why is SHA256 used as a layer on top of Digital Signature

Well, for one, signature algorithms really don't use "Asynchronous Encryption". What they do is use the private key to generate a signature that has some verifiable relationship (with the ...
poncho's user avatar
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