Timeline for If a private key decrypts what its public key encrypts, can the public key conversely decrypt what its private key encrypts?
Current License: CC BY-SA 3.0
5 events
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| Feb 18, 2019 at 22:37 | comment | added | Squeamish Ossifrage | @KaranChadha Noooooooo! You randomly map the message into an element $x$ of $\mathbb Z/n\mathbb Z$ (‘hash the message’), and then compute the $e^{\mathit{th}}$ root of $x$ modulo $n$. This is NOT encryption. It is a private key operation (since you need the private exponent $d$ or the factors $p$ and $q$ of $n$ to do it), but it is not encryption. | |
| Aug 20, 2018 at 2:58 | comment | added | Chesser | If I understand your answer correctly, for making a signature, you just hash the message and then encrypt the hashed value using the private key. correct? | |
| Feb 26, 2018 at 15:08 | history | edited | Squeamish Ossifrage | CC BY-SA 3.0 |
Clarify wording so this will come up in search results for ‘encrypt with private key’, but preserve answering the original question as asked.
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| Feb 26, 2018 at 15:02 | history | edited | Squeamish Ossifrage | CC BY-SA 3.0 |
Clarify wording so this will come up in search results for ‘encrypt with private key’.
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| Feb 6, 2018 at 17:24 | history | answered | Squeamish Ossifrage | CC BY-SA 3.0 |