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shadeglare/caesar_cipher.rs

Created April 2, 2023 08:44
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Simple caesar encoding in Rust
Raw
caesar_cipher.rs
pub fn encode<'a, I>(data: I, key: u8) -> Vec<u8>
where
I: IntoIterator<Item = &'a u8>,
{
data.into_iter()
.map(|&b| b.wrapping_add(key))
.collect::<Vec<_>>()
}
pub fn decode<'a, I>(data: I, key: u8) -> Vec<u8>
where
I: IntoIterator<Item = &'a u8>,
{
data.into_iter()
.map(|&b| b.wrapping_sub(key))
.collect::<Vec<_>>()
}
pub fn encode_str(value: &str, key: u8) -> Vec<u8> {
encode(value.as_bytes(), key)
}
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