Struct AesGcmFileDecryptor 

pub struct AesGcmFileDecryptor { /* private fields */ }

Holds the decryption material for a single encrypted file.

Created from a plaintext DEK and AAD prefix, then used to wrap an encrypted file reader for transparent decryption on read.

Implementations

impl AesGcmFileDecryptor

pub fn new(dek: &[u8], aad_prefix: impl Into<Box<[u8]>>) -> Result<Self>

Creates a new AesGcmFileDecryptor from a plaintext DEK and AAD prefix.

pub fn wrap_reader( &self, reader: Box<dyn FileRead>, encrypted_file_length: u64, ) -> Result<Box<dyn FileRead>>

Wraps a raw encrypted-file reader in a decrypting AesGcmFileRead.

pub fn plaintext_length(&self, encrypted_file_length: u64) -> Result<u64>

Calculates the plaintext length from an encrypted file’s total length.

Trait Implementations

impl Debug for AesGcmFileDecryptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.