Comments (1)
(Synchronous) stream ciphers work by generating keystream and XORing it with data, so encryption and decryption is the same operation. In other words, "encrypting" plaintext twice with the same cipher will result in plaintext. Stream ciphers are rarely used in isolation (a naive use of unauthenticated stream ciphers often leads to serious vulnerabilities), usually it's a building block for higher-level constructs. I strongly recommend you use one of the AEAD algorithms.
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Related Issues (20)
- Please publish aes-ctr v0.5 to crates.io HOT 2
- request for rabbit cipher HOT 1
- ctr: block size vs counter size naming HOT 3
- XChaCha20 unnecessarily limits keystream to 256gb HOT 6
- Missing algorithms HOT 4
- Remove circular dependencies on `aes` crate HOT 1
- why chacha20 seek only works up to 2^37 while xchacha20 seek works up to 2^62? HOT 1
- out of range for slice of length 16 HOT 5
- chacha20: Add wide (4-block) AVX2 impl
- Port chacha20 SIMD backends
- Locking `zeroize` to `<=1.5` for `chacha` prevents compiling with `num-bigint-dig v0.8.1` (for `rsa 0.6.0-pre`) HOT 3
- version 0.9.0 does not compile on Arduino architecture HOT 1
- chacha20: SIGSEGV in CI HOT 8
- Publish `chacha20` crate which is available `neon` feature HOT 1
- Make the neon feature available for ChaCha20 HOT 3
- Add more test vectors to salsa20 ? HOT 8
- chacha20: 64-bit counter support HOT 3
- `chacha20` is missing `.zeroize()` for the SIMD backends HOT 16
- No performance improvements with `-Ctarget-feature=+neon` on `arm64` HOT 6
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