---
title: none
framework: applearchive
role: symbol
role_heading: Type Property
path: applearchive/archiveencryptioncontext/checksummode-swift.struct/none
---

# none

A constant that represents no checksum.

## Declaration

```swift
static let none: ArchiveEncryptionContext.ChecksumMode
```

## See Also

### Checksum Mode Constants

- [murmurhash64](applearchive/archiveencryptioncontext/checksummode-swift.struct/murmurhash64.md)
- [sha256](applearchive/archiveencryptioncontext/checksummode-swift.struct/sha256.md)