diff options
| author | Stuart Stock <stuart@int08h.com> | 2018-10-21 20:36:07 -0500 |
|---|---|---|
| committer | Stuart Stock <stuart@int08h.com> | 2018-10-21 20:36:07 -0500 |
| commit | 2225b7c4ecb40cef0c9bf6b4d50b48c0009e6e6a (patch) | |
| tree | b41760a94237eac9ee312fab3c48240f5f93a456 /src | |
| parent | 5c92c228af412e39633c11bc1eca3c975c161fb7 (diff) | |
| download | roughenough-2225b7c4ecb40cef0c9bf6b4d50b48c0009e6e6a.zip | |
tweak bounds check; will need a revisit
Diffstat (limited to 'src')
| -rw-r--r-- | src/kms/envelope.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/kms/envelope.rs b/src/kms/envelope.rs index bc75994..49f8d79 100644 --- a/src/kms/envelope.rs +++ b/src/kms/envelope.rs @@ -79,7 +79,7 @@ impl EnvelopeEncryption { let dek_len = tmp.read_u16::<LittleEndian>()? as usize; let nonce_len = tmp.read_u16::<LittleEndian>()? as usize; - if dek_len != DEK_SIZE_BYTES || nonce_len != NONCE_SIZE_BYTES { + if nonce_len != NONCE_SIZE_BYTES || dek_len > ciphertext_blob.len() { return Err(KmsError::InvalidData(format!( "invalid DEK ({}) or nonce ({}) length", dek_len, nonce_len @@ -234,7 +234,7 @@ mod test { let ciphertext = enc_result.unwrap(); let mut ciphertext_copy = ciphertext.clone(); - ciphertext_copy[0] = 1; + ciphertext_copy[1] = 99; let dec_result = EnvelopeEncryption::decrypt_seed(&kms, &ciphertext_copy); match dec_result.expect_err("expected an error") { KmsError::InvalidData(msg) => assert!(msg.contains("invalid DEK")), |