[−][src]Module lea::ctr
LEA-128/192/256-CTR implementation
- Examples
Encryption
use lea::ctr::Lea256Ctr; use lea::stream_cipher::{NewStreamCipher, StreamCipher}; use lea::generic_array::arr; use lea::generic_array::arr_impl; let key = arr![u8; 0x0F, 0x1E, 0x2D, 0x3C, 0x4B, 0x5A, 0x69, 0x78, 0x87, 0x96, 0xA5, 0xB4, 0xC3, 0xD2, 0xE1, 0xF0, 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87, 0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F]; let counter = arr![u8; 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10]; let mut lea256ctr = Lea256Ctr::new(&key, &counter); let mut data = arr![u8; 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F]; lea256ctr.encrypt(&mut data); let cipher = arr![u8; 0x15, 0x39, 0xF7, 0xA2, 0x1C, 0x0F, 0x16, 0x07, 0x6D, 0x90, 0xFB, 0xEB, 0x03, 0x97, 0xD4, 0x40, 0x2D, 0xFD, 0x4E, 0xB0, 0x44, 0x0B, 0x28, 0x3D, 0xE7, 0xE3, 0x0C, 0x36, 0x0D, 0x71, 0xF1, 0x47, 0x0E, 0x8B, 0xAF, 0xD2, 0x88, 0x3B, 0xA8, 0x08, 0x8D, 0x0C, 0x5D, 0xA7, 0xA9, 0x14, 0xAE, 0x90]; assert_eq!(data, cipher);
Decryption
use lea::ctr::Lea256Ctr; use lea::stream_cipher::{NewStreamCipher, StreamCipher}; use lea::generic_array::arr; use lea::generic_array::arr_impl; let key = arr![u8; 0x0F, 0x1E, 0x2D, 0x3C, 0x4B, 0x5A, 0x69, 0x78, 0x87, 0x96, 0xA5, 0xB4, 0xC3, 0xD2, 0xE1, 0xF0, 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87, 0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F]; let counter = arr![u8; 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10]; let mut lea256ctr = Lea256Ctr::new(&key, &counter); let mut data = arr![u8; 0x15, 0x39, 0xF7, 0xA2, 0x1C, 0x0F, 0x16, 0x07, 0x6D, 0x90, 0xFB, 0xEB, 0x03, 0x97, 0xD4, 0x40, 0x2D, 0xFD, 0x4E, 0xB0, 0x44, 0x0B, 0x28, 0x3D, 0xE7, 0xE3, 0x0C, 0x36, 0x0D, 0x71, 0xF1, 0x47, 0x0E, 0x8B, 0xAF, 0xD2, 0x88, 0x3B, 0xA8, 0x08, 0x8D, 0x0C, 0x5D, 0xA7, 0xA9, 0x14, 0xAE, 0x90]; lea256ctr.decrypt(&mut data); let plain = arr![u8; 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F]; assert_eq!(data, plain);
Structs
Lea128Ctr | |
Lea192Ctr | |
Lea256Ctr |