- License
- Botan is released under the Simplified BSD License (see LICENSE.md)
Transformations of data
interface Transformation;
Interface for general transformations on data
final SecureVector!ubyte startVec(Alloc)(auto ref const RefCounted!(Vector!(ubyte, Alloc), Alloc) nonce);
- Parameters
RefCounted!(Vector!(ubyte, Alloc), Alloc) nonce the per message nonce
Begin processing a message.
abstract SecureVector!ubyte start(const(ubyte)* nonce, size_t nonce_len);
- Parameters
const(ubyte)* nonce the per message nonce size_t nonce_len length of nonce
Begin processing a message.
abstract void update(ref SecureVector!ubyte blocks, size_t offset = 0);
- Parameters
SecureVector!ubyte blocks in/out paramter which will possibly be resized size_t offset an offset into blocks to begin processing
Process some data. Input must be in size updateGranularity() ubyte blocks.
abstract void finish(ref SecureVector!ubyte final_block, size_t offset = 0);
- Parameters
SecureVector!ubyte final_block in/out parameter which must be at least minimumFinalSize() bytes, and will be set to any final output size_t offset an offset into final_block to begin processing
Complete processing of a message.
abstract const size_t outputLength(size_t input_length);
- Returns
- The size of the output if this transform is used to process a message with input_length bytes. Will throw if unable to give a precise answer.
abstract const size_t updateGranularity();
- Returns
- size of required blocks to update
abstract const size_t minimumFinalSize();
- Returns
- required minimium size to finalize() - may be any length larger than this.
abstract const size_t defaultNonceLength();
- Returns
- the default size for a nonce
abstract const bool validNonceLength(size_t nonce_len);
- Returns
- true iff nonce_len is a valid length for the nonce
abstract const string provider();
Short name describing the provider of this tranformation.
Useful in cases where multiple implementations are available (eg, different implementations of AES). Default "core" is used for the 'standard' implementation included in the library.