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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/gcm_driver/crypto/gcm_decryption_result.h"
#include "base/notreached.h"
namespace gcm {
std::string ToGCMDecryptionResultDetailsString(GCMDecryptionResult result) {
switch (result) {
case GCMDecryptionResult::UNENCRYPTED:
return "Message was not encrypted";
case GCMDecryptionResult::DECRYPTED_DRAFT_03:
return "Message decrypted (draft 03)";
case GCMDecryptionResult::DECRYPTED_DRAFT_08:
return "Message decrypted (draft 08)";
case GCMDecryptionResult::INVALID_ENCRYPTION_HEADER:
return "Invalid format for the Encryption header";
case GCMDecryptionResult::INVALID_CRYPTO_KEY_HEADER:
return "Invalid format for the Crypto-Key header";
case GCMDecryptionResult::NO_KEYS:
return "There are no associated keys with the subscription";
case GCMDecryptionResult::INVALID_SHARED_SECRET:
return "The shared secret cannot be derived from the keying material";
case GCMDecryptionResult::INVALID_PAYLOAD:
return "AES-GCM decryption failed";
case GCMDecryptionResult::INVALID_BINARY_HEADER_PAYLOAD_LENGTH:
return "The message payload is smaller than the smallest valid message "
"(104 bytes)";
case GCMDecryptionResult::INVALID_BINARY_HEADER_RECORD_SIZE:
return "The record size indicated in the binary message header is "
"smaller than the smallest valid record size (18 bytes)";
case GCMDecryptionResult::INVALID_BINARY_HEADER_PUBLIC_KEY_LENGTH:
return "The public key included in the binary message header must be a "
"valid P-256 ECDH uncompressed point that is 65 bytes in length.";
case GCMDecryptionResult::INVALID_BINARY_HEADER_PUBLIC_KEY_FORMAT:
return "The public key included in the binary message header must be a "
"valid P-256 ECDH uncompressed poin that starts with an 0x04 "
"byte.";
case GCMDecryptionResult::ENUM_SIZE:
break; // deliberate fall-through
}
NOTREACHED();
return "(invalid result)";
}
} // namespace gcm
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