26 pub enum KdfError {  enum
56 impl IntoAnyError for KdfError {  implementation
77     type Error = KdfError;
79     async fn extract(&self, salt: &[u8], ikm: &[u8]) -> Result<Vec<u8>, KdfError> {  in extract()  argument
81             return Err(KdfError::TooShortIkm { len: 0, min_len: 1 });  in extract()
93             _ => Err(KdfError::UnsupportedCipherSuite),  in extract()
97     async fn expand(&self, prk: &[u8], info: &[u8], len: usize) -> Result<Vec<u8>, KdfError> {  in expand()  argument
99             return Err(KdfError::TooShortPrk { len: prk.len(), min_len: self.extract_size() });  in expand()
109                             Err(KdfError::TooLongOkm { len, max_len: HkdfSha256::MAX_OUTPUT_LEN })  in expand()
113                 None => Err(KdfError::TooShortPrk { len: prk.len(), min_len: self.extract_size() }),  in expand()
121                             Err(KdfError::TooLongOkm { len, max_len: HkdfSha512::MAX_OUTPUT_LEN })  in expand()
125                 None => Err(KdfError::TooShortPrk { len: prk.len(), min_len: self.extract_size() }),  in expand()
127             _ => Err(KdfError::UnsupportedCipherSuite),  in expand()
142     use super::{Kdf, KdfError, KdfType};
184         assert_matches!(kdf.extract(b"salty", b""), Err(KdfError::TooShortIkm { .. }));  in sha256_extract_short_ikm()
193         assert_matches!(kdf.expand(&prk_short, &info, 42), Err(KdfError::TooShortPrk { .. }));  in sha256_expand_short_prk()
206             Err(KdfError::TooLongOkm { .. })  in sha256_expand_long_okm()
213         assert_matches!(kdf.extract(b"salty", b""), Err(KdfError::TooShortIkm { .. }));  in sha512_extract_short_ikm()
222         assert_matches!(kdf.expand(&prk_short, &info, 42), Err(KdfError::TooShortPrk { .. }));  in sha512_expand_short_prk()
236             Err(KdfError::TooLongOkm { .. })  in sha512_expand_long_okm()
247             Err(KdfError::UnsupportedCipherSuite)  in unsupported_cipher_suites()