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// Copyright 2020, The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! This module implements Error for the keystore2_crypto library.
use crate::zvec;
/// Crypto specific error codes.
#[derive(Debug, thiserror::Error, Eq, PartialEq)]
pub enum Error {
/// This is returned if the C/C++ implementation of AES_gcm_decrypt returned false.
#[error("Failed to decrypt.")]
DecryptionFailed,
/// This is returned if the C/C++ implementation of AES_gcm_encrypt returned false.
#[error("Failed to encrypt.")]
EncryptionFailed,
/// The initialization vector has the wrong length.
#[error("Invalid IV length.")]
InvalidIvLength,
/// The aead tag has the wrong length.
#[error("Invalid AEAD tag length.")]
InvalidAeadTagLength,
/// The key has the wrong length.
#[error("Invalid key length.")]
InvalidKeyLength,
/// Invalid data length.
#[error("Invalid data length.")]
InvalidDataLength,
/// Invalid salt length.
#[error("Invalid salt length.")]
InvalidSaltLength,
/// Random number generation failed.
#[error("Random number generation failed.")]
RandomNumberGenerationFailed,
/// ZVec construction failed.
#[error(transparent)]
LayoutError(#[from] std::alloc::LayoutErr),
/// Nix error.
#[error(transparent)]
NixError(#[from] nix::Error),
/// This is returned if the C implementation of HKDFExtract returned false
/// or otherwise failed.
#[error("Failed to extract.")]
HKDFExtractFailed,
/// This is returned if the C implementation of HKDFExpand returned false.
#[error("Failed to expand.")]
HKDFExpandFailed,
/// This is returned if the C implementation of ECDHComputeKey returned -1.
#[error("Failed to compute ecdh key.")]
ECDHComputeKeyFailed,
/// This is returned if the C implementation of ECKEYGenerateKey returned null.
#[error("Failed to generate key.")]
ECKEYGenerateKeyFailed,
/// This is returned if the C implementation of ECKEYMarshalPrivateKey returned 0.
#[error("Failed to marshal private key.")]
ECKEYMarshalPrivateKeyFailed,
/// This is returned if the C implementation of ECKEYParsePrivateKey returned null.
#[error("Failed to parse private key.")]
ECKEYParsePrivateKeyFailed,
/// This is returned if the C implementation of ECPOINTPoint2Oct returned 0.
#[error("Failed to convert point to oct.")]
ECPoint2OctFailed,
/// This is returned if the C implementation of ECPOINTOct2Point returned null.
#[error("Failed to convert oct to point.")]
ECOct2PointFailed,
/// This is returned if the C implementation of extractSubjectFromCertificate failed.
#[error("Failed to extract certificate subject.")]
ExtractSubjectFailed,
/// This is returned if the C implementation of hmacSha256 failed.
#[error("Failed to calculate HMAC-SHA256.")]
HmacSha256Failed,
/// Zvec error.
#[error(transparent)]
ZVec(#[from] zvec::Error),
}
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