501 pub fn to_cose_signature(curve: EcCurve, sig: Vec<u8>) -> Result<Vec<u8>, Error> {  in to_cose_signature()
505             let der_sig = NistSignature::from_der(&sig)  in to_cose_signature()
511             let mut sig = vec_try![0; 2 * l]?;  in to_cose_signature()  localVariable
516             sig[r_offset..r_offset + r.len()].copy_from_slice(r);  in to_cose_signature()
517             sig[s_offset..s_offset + s.len()].copy_from_slice(s);  in to_cose_signature()
518             Ok(sig)  in to_cose_signature()
522             Ok(sig)  in to_cose_signature()
528 pub fn from_cose_signature(curve: EcCurve, sig: &[u8]) -> Result<Vec<u8>, Error> {  in from_cose_signature()
534             if sig.len() != 2 * l {  in from_cose_signature()
538                     sig.len(),  in from_cose_signature()
545                 r: der::asn1::UintRef::new(&sig[..l])  in from_cose_signature()
547                 s: der::asn1::UintRef::new(&sig[l..])  in from_cose_signature()
556             try_to_vec(sig)  in from_cose_signature()
580         let sig = NistSignature::from_der(&sig_data).expect("sequence should decode");  in test_sig_decode()  localVariable
582             hex::encode(sig.r.as_bytes()),  in test_sig_decode()
586             hex::encode(sig.s.as_bytes()),  in test_sig_decode()