Struct SecretWords

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pub struct SecretWords { /* private fields */ }
Expand description

Strictly memory protected bytes contain sensitive data.

This implementation borrows a lot of code and ideas from:

  • https://crates.io/crates/memsec
  • https://crates.io/crates/secrets
  • https://download.libsodium.org/doc/memory_management

secrets is not good enough because it relies on libsodium which breaks the desired portability of this library (at least at the time of this writing).

memsec is not good enough because it focuses on protecting a generic type T which size is known at compile-time. In this library we are dealing with dynamic amounts of sensitive data and there is no point in securing a Vec<u8> via memsec … all we would achieve is protecting the pointer to sensitive data in unsecured space.

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impl SecretWords

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pub fn from_secured(bytes: &[u8]) -> Self

Copy from slice of bytes.

This is not a regular From implementation because the caller has to ensure that the original bytes are zeroed out (or are already in some secured memspace. This different signature should be a reminder of that.

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pub fn with_capacity(capacity: usize) -> SecretWords

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pub fn zeroed(size: usize) -> SecretWords

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pub fn is_empty(&self) -> bool

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pub fn len(&self) -> usize

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pub fn capacity(&self) -> usize

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pub fn borrow(&self) -> Ref<'_>

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pub fn borrow_mut(&mut self) -> RefMut<'_>

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pub fn locks(&self) -> isize

Trait Implementations§

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impl Clone for SecretWords

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Drop for SecretWords

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl From<&mut [Word]> for SecretWords

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fn from(words: &mut [Word]) -> Self

Converts to this type from the input type.
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impl From<&mut [u8]> for SecretWords

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fn from(bytes: &mut [u8]) -> Self

Converts to this type from the input type.
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impl From<Vec<u8>> for SecretWords

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fn from(bytes: Vec<u8>) -> Self

Converts to this type from the input type.
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impl Send for SecretWords

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impl Sync for SecretWords

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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