reallyme-crypto 0.3.16

Cross-platform cryptographic primitives, key formats, and conformance-tested provider bindings.
Documentation 
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// SPDX-FileCopyrightText: 2026 ReallyMe LLC
//
// SPDX-License-Identifier: MIT OR Apache-2.0

/// Maximum intended lifetime of one material buffer.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[non_exhaustive]
pub enum RetentionPolicy {
    /// Borrowed only while the operation call is active.
    BorrowedForCall,
    /// Owned only until the operation completes or returns an error.
    OperationTemporary,
    /// Retained by the returned value until its owner drops it.
    ResultLifetime,
    /// Retained by a provider under its documented key-lifecycle policy.
    ProviderManaged,
}