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39 lines
777 B
39 lines
777 B
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use openssl::{
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symm::{
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Cipher, Crypter, Mode,
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},
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error::ErrorStack,
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};
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use crate::key::{Key, IV};
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pub const KEY_SIZE: usize = 32;
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pub const IV_SIZE: usize = 12;
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static NEW_CIPHER: fn() -> Cipher = Cipher::chacha20_poly1305;
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#[inline] pub fn decrypter(key: impl AsRef<Key>, iv: impl AsRef<IV>) -> Result<Crypter, ErrorStack>
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{
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Crypter::new(
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NEW_CIPHER(),
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Mode::Decrypt,
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key.as_ref().as_ref(),
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Some(iv.as_ref().as_ref())
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)
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}
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#[inline] pub fn encrypter(key: impl AsRef<Key>, iv: impl AsRef<IV>) -> Result<Crypter, ErrorStack>
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{
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Crypter::new(
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NEW_CIPHER(),
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Mode::Encrypt,
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key.as_ref().as_ref(),
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Some(iv.as_ref().as_ref())
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)
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}
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/// Generate a random key and IV.
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#[inline(always)] pub fn keygen() -> (Key, IV)
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{
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(Key::new(), IV::new())
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}
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