35 lines
1.9 KiB
Rust
35 lines
1.9 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use types::all::{Error, RequestSignature, DocumentAddress, DocumentEncryptedKey, DocumentEncryptedKeyShadow};
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#[ipc(client_ident="RemoteKeyServer")]
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/// Secret store key server
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pub trait KeyServer: Send + Sync {
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/// Generate encryption key for given document.
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fn generate_document_key(&self, signature: &RequestSignature, document: &DocumentAddress, threshold: usize) -> Result<DocumentEncryptedKey, Error>;
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/// Request encryption key of given document for given requestor
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fn document_key(&self, signature: &RequestSignature, document: &DocumentAddress) -> Result<DocumentEncryptedKey, Error>;
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/// Request encryption key of given document for given requestor.
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/// This method does not reveal document_key to any KeyServer, but it requires additional actions on client.
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/// To calculate decrypted key on client:
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/// 1) use requestor secret key to decrypt secret coefficients from result.decrypt_shadows
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/// 2) calculate decrypt_shadows_sum = sum of all secrets from (1)
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/// 3) calculate decrypt_shadow_point: decrypt_shadows_sum * result.common_point
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/// 4) calculate decrypted_secret: result.decrypted_secret + decrypt_shadow_point
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fn document_key_shadow(&self, signature: &RequestSignature, document: &DocumentAddress) -> Result<DocumentEncryptedKeyShadow, Error>;
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}
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