aws_encryption_sdk.caches.null¶

Null cache: a cache which does not cache.

Classes

NullCryptoMaterialsCache Null cache: a cache which does not cache.

class aws_encryption_sdk.caches.null.NullCryptoMaterialsCache¶

Null cache: a cache which does not cache.

New in version 1.3.0.

get_decryption_materials(cache_key)¶

Always raises a CacheKeyError.

Parameters:	cache_key (bytes) – Cache ID for which to locate cache entries
Return type:	aws_encryption_sdk.caches.CryptoCacheEntry
Raises:	CacheKeyError – when called

get_encryption_materials(cache_key, plaintext_length)¶

Always raises a CacheKeyError.

Parameters:	cache_key (bytes) – Cache ID for which to locate cache entries plaintext_length (int) – Bytes to be encrypted by the encryption materials
Return type:	aws_encryption_sdk.caches.CryptoCacheEntry
Raises:	CacheKeyError – when called

put_decryption_materials(cache_key, decryption_materials)¶

Does not add decryption materials to the cache since there is no cache to which to add them.

Parameters:	cache_key (bytes) – Identifier for entries in cache decryption_materials (aws_encryption_sdk.materials_managers.DecryptionMaterials) – Decryption materials to add to cache
Return type:	aws_encryption_sdk.caches.CryptoMaterialsCacheEntry

put_encryption_materials(cache_key, encryption_materials, plaintext_length, entry_hints=None)¶

Does not add encryption materials to the cache since there is no cache to which to add them.

Parameters:

cache_key (bytes) – Identifier for entries in cache
encryption_materials (aws_encryption_sdk.materials_managers.EncryptionMaterials) – Encryption materials to add to cache
plaintext_length (int) – Length of plaintext associated with this request to the cache
entry_hints (aws_encryption_sdk.caches.CryptoCacheEntryHints) – Metadata to associate with entry (optional)

Return type: