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Clean up error handing for unexpected length of 'Digital signature counter' DO

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This commit is contained in:
Heiko Schaefer 2022-10-17 15:15:11 +02:00
parent cf04d1d3a1
commit 4181c2d66c
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GPG key ID: 4A849A1904CCBD7D
1 changed files with 6 additions and 1 deletions
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7
openpgp-card/src/openpgp.rs
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@ -128,7 +128,12 @@ impl<'a> OpenPgpTransaction<'a> {
if let Value::S(data) = res {
let mut data = data.to_vec();
assert_eq!(data.len(), 3);
if data.len() != 3 {
return Err(Error::ParseError(format!(
"Unexpected length {} for 'Digital signature counter' DO",
data.len()
)));
}
data.insert(0, 0); // prepend a zero
let data: [u8; 4] = data.try_into().unwrap();