Distinguish cipher block size from key size in README (#5)

pheki · Dec 10, 2021 · be7d19f · be7d19f
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diff --git a/README.md b/README.md
@@ -1,8 +1,8 @@
 # xts-mode
 
-[XTS block mode](https://en.wikipedia.org/wiki/Disk_encryption_theory#XEX-based_tweaked-codebook_mode_with_ciphertext_stealing_(XTS)) implementation in rust.
-Currently only 128-bit (16-byte) algorithms are supported, if you require other
-sizes, please open an issue.
+[XTS block mode](https://en.wikipedia.org/wiki/Disk_encryption_theory#XEX-based_tweaked-codebook_mode_with_ciphertext_stealing_(XTS)) implementation in Rust.
+
+Currently this implementation supports only ciphers with 128-bit (16-byte) block size (distinct from key size). Note that AES-256 uses 128-bit blocks, so it works with this crate. If you require other cipher block sizes, please open an issue.
 
 ## Examples:
 

diff --git a/src/lib.rs b/src/lib.rs
@@ -1,7 +1,7 @@
 /*!
-[XTS block mode](https://en.wikipedia.org/wiki/Disk_encryption_theory#XEX-based_tweaked-codebook_mode_with_ciphertext_stealing_(XTS)) implementation in rust.
-Currently only 128-bit (16-byte) algorithms are supported, if you require other
-sizes, please open an issue.
+[XTS block mode](https://en.wikipedia.org/wiki/Disk_encryption_theory#XEX-based_tweaked-codebook_mode_with_ciphertext_stealing_(XTS)) implementation in Rust.
+
+Currently this implementation supports only ciphers with 128-bit (16-byte) block size (distinct from key size). Note that AES-256 uses 128-bit blocks, so it works with this crate. If you require other cipher block sizes, please open an issue.
 
 # Examples: