Skip to contents

Lead party's partial decryption

Source: R/multiparty.R
multiparty_decrypt_lead.Rd

In threshold decryption, the lead party calls this first. Accepts either a single Ciphertext or a list of Ciphertext objects:

Usage

multiparty_decrypt_lead(cc, sk, ct)

Arguments

cc

A CryptoContext

sk

This party's PrivateKey

ct

A Ciphertext or a list of Ciphertexts

Value

A partially decrypted Ciphertext or list of Ciphertexts, mirroring the input shape.

Details

  • single Ciphertext: returns a single partially decrypted Ciphertext, matching the original single-ciphertext signature.

  • list of Ciphertext: returns a list of partially decrypted Ciphertext objects of the same length, routed through the C++ MultipartyDecryptLead(vector<Ciphertext>, PrivateKey) overload (cryptocontext.h line 3115). Useful when a protocol round needs to partially decrypt a batch in one trip.