move incorrect passkey error

Cargo.lock

@@ -808,18 +808,6 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
-[[package]]
-name = "memoize"
-version = "0.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb49e4361c7534fd1fd1d4a1da51b1bb4b254c5ebc519fc4e5dce578fd69f5d9"
-dependencies = [
- "lazy_static 1.4.0",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "mime"
 version = "0.3.16"
@@ -1863,7 +1851,6 @@ dependencies = [
  "hmac-sha1",
  "lazy_static 1.4.0",
  "log",
- "memoize",
  "proptest",
  "rand 0.8.4",
  "regex",

Cargo.toml

@@ -38,7 +38,6 @@ ring = "0.16.20"
 aes = "0.7.4"
 block-modes = "0.8.1"
 thiserror = "1.0.26"
-memoize = "0.1.9"
 
 [dev-dependencies]
 tempdir = "0.3"

src/accountmanager.rs

@@ -97,6 +97,9 @@ impl Manifest {
 					let plaintext = crate::encryption::LegacySdaCompatible::decrypt(
 						passkey, params, ciphertext,
 					)?;
+					if plaintext[0] != '{' as u8 && plaintext[plaintext.len() - 1] != '}' as u8 {
+						return Err(ManifestAccountLoadError::IncorrectPasskey);
+					}
 					let s = std::str::from_utf8(&plaintext).unwrap();
 					account = serde_json::from_str(&s)?;
 				}
@@ -195,6 +198,8 @@ impl Manifest {
 pub enum ManifestAccountLoadError {
 	#[error("Manifest accounts are encrypted, but no passkey was provided.")]
 	MissingPasskey,
+	#[error("Incorrect passkey provided.")]
+	IncorrectPasskey,
 	#[error("Failed to decrypt account. {self:?}")]
 	DecryptionFailed(#[from] crate::encryption::EntryEncryptionError),
 	#[error("Failed to deserialize the account.")]

src/encryption.rs

@@ -131,9 +131,6 @@ impl EntryEncryptor for LegacySdaCompatible {
 		let mut buffer = vec![0xffu8; 16 * size];
 		buffer[..decoded.len()].copy_from_slice(&decoded);
 		let mut decrypted = cipher.decrypt(&mut buffer)?;
-		if decrypted[0] != '{' as u8 && decrypted[decrypted.len() - 1] != '}' as u8 {
-			return Err(EntryEncryptionError::IncorrectPasskey);
-		}
 		let unpadded = Pkcs7::unpad(&mut decrypted)?;
 		return Ok(unpadded.to_vec());
 	}
@@ -141,8 +138,6 @@ impl EntryEncryptor for LegacySdaCompatible {
 
 #[derive(Debug, Error)]
 pub enum EntryEncryptionError {
-	#[error("Incorrect passkey provided.")]
-	IncorrectPasskey,
 	#[error(transparent)]
 	Unknown(#[from] anyhow::Error),
 }
@@ -208,7 +203,7 @@ mod tests {
 	fn test_ensure_encryption_symmetric() -> anyhow::Result<()> {
 		let passkey = "password";
 		let params = EntryEncryptionParams::generate();
-		let orig = "{{tactical glizzy}}".as_bytes().to_vec();
+		let orig = "tactical glizzy".as_bytes().to_vec();
 		let encrypted =
 			LegacySdaCompatible::encrypt(&passkey.clone().into(), &params, orig.clone()).unwrap();
 		let result = LegacySdaCompatible::decrypt(&passkey.into(), &params, encrypted).unwrap();

src/main.rs

@@ -193,9 +193,7 @@ fn main() {
 			Ok(_) => break,
 			Err(
 				accountmanager::ManifestAccountLoadError::MissingPasskey
-				| accountmanager::ManifestAccountLoadError::DecryptionFailed(
-					encryption::EntryEncryptionError::IncorrectPasskey,
-				),
+				| accountmanager::ManifestAccountLoadError::IncorrectPasskey,
 			) => {
 				if passkey.is_some() {
 					error!("Incorrect passkey");