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vince.h
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If your network has suchThe ability, of re-encrypting the best solution is letdata to arbitrary public key implies the ability of decryption.

So, you can simply upload your secret key bein a secret-shared betweenform to your network nodes. With consensus, they can run a"decrypta "decrypt then encrypt" procedure.

Note This procedure could be run in an MPC way so that this does not reduce the security: The ability of re-encrypting the data to arbitrary public key implies the ability of decryptionintermediate plaintext is not revealed.

If your network has such ability, the best solution is let your secret key be secret-shared between your network nodes. With consensus, they can run a"decrypt then encrypt" procedure.

Note that this does not reduce the security: The ability of re-encrypting the data to arbitrary public key implies the ability of decryption.

The ability of re-encrypting the data to arbitrary public key implies the ability of decryption.

So, you can simply upload your secret key in a secret-shared form to your network nodes. With consensus, they can run a "decrypt then encrypt" procedure. This procedure could be run in an MPC way so that the intermediate plaintext is not revealed.

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vince.h
vince.h
  • 149
  • 5

If your network has such ability, the best solution is let your secret key be secret-shared between your network nodes. With consensus, they can run a"decrypt then encrypt" procedure.

Note that this does not reduce the security: The ability of re-encrypting the data to arbitrary public key implies the ability of decryption.

If your network has such ability, the best solution is let your secret key be secret-shared between your network nodes. With consensus, they can run a"decrypt then encrypt" procedure.

If your network has such ability, the best solution is let your secret key be secret-shared between your network nodes. With consensus, they can run a"decrypt then encrypt" procedure.

Note that this does not reduce the security: The ability of re-encrypting the data to arbitrary public key implies the ability of decryption.

Source Link
vince.h
vince.h
  • 149
  • 5

If your network has such ability, the best solution is let your secret key be secret-shared between your network nodes. With consensus, they can run a"decrypt then encrypt" procedure.