1 // Copyright 2024 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 //! Global constants 16 17 /// The maximum size in bytes of a message buffer. 18 pub const MAX_MESSAGE_SIZE: usize = 8192; 19 20 /// The size in bytes of a cryptographic hash. 21 pub const HASH_SIZE: usize = 64; 22 23 /// The size in bytes of a private session key agreement key. 24 pub const DH_PRIVATE_KEY_SIZE: usize = 32; 25 26 /// The size in bytes of a public session key agreement key. 27 pub const DH_PUBLIC_KEY_SIZE: usize = 32; 28 29 /// The size in bytes of an encryption key, currently this is the same for 30 /// session and sealing encryption. 31 pub const ENCRYPTION_KEY_SIZE: usize = 32; 32 33 /// The size in bytes of a serialized public key for signing. 34 pub const SIGNING_PUBLIC_KEY_SIZE: usize = 32; 35 36 /// The size in bytes of a serialized private key for signing. 37 pub const SIGNING_PRIVATE_KEY_SIZE: usize = 32; 38 39 /// The size in bytes of a serialized public key for sealing. 40 pub const SEALING_PUBLIC_KEY_SIZE: usize = 32; 41 42 /// The size in bytes of a serialized private key for sealing. 43 pub const SEALING_PRIVATE_KEY_SIZE: usize = 32; 44 45 /// The maximum size in bytes of a signature produced by the Sign command. 46 pub const MAX_SIGNATURE_SIZE: usize = 64; 47 48 /// The maximum size in bytes of a session handshake message. 49 pub const MAX_HANDSHAKE_MESSAGE_SIZE: usize = 64; 50 51 /// The maximum size in bytes of a session handshake payload. 52 pub const MAX_HANDSHAKE_PAYLOAD_SIZE: usize = 8; 53