cts: update to cipher v0.5 (#72)

Additionally merges Enc/Dec types.

cts/CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## UNRELEASED
+### Changed
+- Update to cipher v0.5 ([#72])
+- Merge Enc/Dec types, i.e. `CbcCs1Enc` and `CbcCs1Dec` are merged into `CbcCs1` ([#72])
+
+[#72]: https://github.com/RustCrypto/block-modes/pull/72
+
 ## 0.6.0 (2024-11-01)
 - Initial release ([#70])
 

cts/Cargo.toml

@@ -13,13 +13,13 @@ keywords = ["crypto", "block-mode", "ciphers"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-cipher = "0.4.2"
+cipher = "=0.5.0-pre.7"
 
 [dev-dependencies]
-cipher = { version = "0.4.2", features = ["dev"] }
+cipher = { version = "=0.5.0-pre.7", features = ["dev"] }
 hex-literal = "0.4"
-aes = "0.8"
-belt-block = "0.1"
+aes = "=0.9.0-pre.2"
+belt-block = "=0.2.0-pre.2"
 
 [package.metadata.docs.rs]
 all-features = true

cts/README.md

@@ -15,19 +15,21 @@ use aes::Aes128;
 use cts::{Decrypt, Encrypt, KeyIvInit};
 use hex_literal::hex;
 
+type Aes128CbcCs3 = cts::CbcCs3<Aes128>;
+
 let key = [0x42; 16];
 let iv = [0x24; 16];
 
 // Message must be bigger than block size (16 bytes for AES-128)
 let msg = b"Lorem ipsum dolor sit amet";
 let mut buf = [0u8; 26];
 
-let enc_mode = cts::CbcCs3Enc::<Aes128>::new(&key.into(), &iv.into());
-enc_mode.encrypt_b2b(msg, &mut buf).unwrap();
+Aes128CbcCs3::new(&key.into(), &iv.into())
+    .encrypt_b2b(msg, &mut buf).unwrap();
 assert_eq!(buf, hex!("68ec97f172e322fdd38e74fca65cee52658ae2124beb5e4e5315"));
 
-let dec_mode = cts::CbcCs3Dec::<Aes128>::new(&key.into(), &iv.into());
-dec_mode.decrypt(&mut buf).unwrap();
+Aes128CbcCs3::new(&key.into(), &iv.into())
+    .decrypt(&mut buf).unwrap();
 assert_eq!(&buf, msg);
 ```
 
@@ -52,12 +54,12 @@ let iv2 = [0x25; 16];
 let msg2 = b"Lorem ipsum dolor sit";
 let mut buf2 = [0u8; 21];
 
-let enc_mode = cts::CbcCs3Enc::inner_iv_init(&cipher, &iv1.into());
-enc_mode.encrypt_b2b(msg1, &mut buf1).unwrap();
+cts::CbcCs3::inner_iv_init(&cipher, &iv1.into())
+    .encrypt_b2b(msg1, &mut buf1).unwrap();
 assert_eq!(buf1, hex!("68ec97f172e322fdd38e74fca65cee52658ae2124beb5e4e5315"));
 
-let enc_mode = cts::CbcCs3Enc::inner_iv_init(&cipher, &iv2.into());
-enc_mode.encrypt_b2b(msg2, &mut buf2).unwrap();
+cts::CbcCs3::inner_iv_init(&cipher, &iv2.into())
+    .encrypt_b2b(msg2, &mut buf2).unwrap();
 assert_eq!(buf2, hex!("69ebd2059e69c6e416a67351982267a26bf5672934"));
 ```