Struct HmacKey 

pub struct HmacKey { /* private fields */ }

Pre-decoded HMAC-SHA256 key bytes for Azure shared-key / service-SAS signing. The base64 decode happens once at construction (in [SharedKeySigningPolicy::new] and the parse_connection_string paths) instead of per request.

The bytes themselves are an Azure storage account key — leaking them via Debug or log output would give full storage-account access — so the manual Debug impl redacts. The underlying Vec<u8> is not zeroized on drop; the existing Secret-based design did not zeroize either, so this is a parity choice rather than a regression (adding zeroize would mean a new dependency).

Implementations

impl HmacKey

pub fn from_base64(key_b64: &str) -> Result<Self, ObjectStoreError>

Decode key_b64 and return an HmacKey. Surfaces the decoding failure inline so the malformed-key error fires at credential-resolution time rather than at first request.

Errors

Returns ObjectStoreError::Other if key_b64 is not valid base64.

Trait Implementations

impl Clone for HmacKey

fn clone(&self) -> HmacKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HmacKey

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

Formats the value using the given formatter.