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Diffstat (limited to 'tvix/derivation/src/nix_hash.rs')
| -rw-r--r-- | tvix/derivation/src/nix_hash.rs | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/tvix/derivation/src/nix_hash.rs b/tvix/derivation/src/nix_hash.rs deleted file mode 100644 index a49d444faa..0000000000 --- a/tvix/derivation/src/nix_hash.rs +++ /dev/null @@ -1,15 +0,0 @@ -/// CompressHash takes an arbitrary long sequence of bytes (usually a hash -/// digest), and returns a sequence of bytes of length output_size. -/// It's calculated by rotating through the bytes in the output buffer (zero- -/// initialized), and XOR'ing with each byte of the passed input. -/// It consumes 1 byte at a time, and XOR's it with the current value in the -/// output buffer. -pub fn compress_hash(input: &[u8], output_size: usize) -> Vec<u8> { - let mut output: Vec<u8> = vec![0; output_size]; - - for (ii, ch) in input.iter().enumerate() { - output[ii % output_size] ^= ch; - } - - output -} |