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Is it possible to sign plain/ciphertext? #3

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SudoHenk opened this issue Jun 21, 2017 · 2 comments
Open

Is it possible to sign plain/ciphertext? #3

SudoHenk opened this issue Jun 21, 2017 · 2 comments

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@SudoHenk
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Can I just like normal public key encryption sign something by decrypting the plaintext, or is this not allowed within ABE?
@jfdm
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jfdm commented Jun 22, 2017

Sorry, I do not follow the question?

@SudoHenk
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SudoHenk commented Jun 22, 2017 •
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So the encryption schemes provide confidentiality (you cannot read the text being encrypted), but it does not provide authenticity. I want to prove that I am in possession of the attributes or policy. Am I allowed to digitally sign, just like as in public key encryption?

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@jfdm @SudoHenk