Hash Functions (package com.kryptel.hash_function)
Contents
- Introduction to the Library
- Basic support package (com.kryptel.bslx)
- Kryptel API Commons package (com.kryptel)
- Cipher package (com.kryptel.cipher)
- Compressor package (com.kryptel.compressor)
- Exceptions package (com.kryptel.exceptions)
- Hash function package (com.kryptel.hash_function)
- MAC function package (com.kryptel.mac)
- Key-related functions (com.kryptel.key)
- Silver Key engine (com.kryptel.silver_key)
- Kryptel encrypted storage (com.kryptel.storage)
Description
This package contains Kryptel hash functions, i.e. low-level components computing hash (or digest) of a data block or an arbitrary length data stream.
The standard Java library includes implementation for all those hash function, so Kryptel/Java components are just wrappers over the standard functions.
| Hash Function | Class Name | Component ID |
|---|---|---|
| MD5 | Md5 | CID_HASH_MD5 |
| SHA-1 | Sha1 | CID_HASH_SHA1 |
| SHA-256 | Sha256 | CID_HASH_SHA256 |
| SHA-384 | Sha384 | CID_HASH_SHA384 |
| SHA-512 | Sha512 | CID_HASH_SHA512 |
| Null hash function | NullHashFunction | CID_NULL_HASH_FUNCTION |
Structures
HashFunctionInfo
A static structure describing the hash function variations.
HashFunctionParameters
A helper structure, used to pack hash function parameters in order to return them in a single function call.
Interfaces
Hash functions export three interface in addition to the standard component interfaces:
IHashFunction
The main interface, used for hashing data blocks of arbitrary size.
IHashFunctionParams
Gets or sets the hash function parameters.
IMemoryBlockHash
Hashes in-memory data.
Examples
Computing a File Digest
Computes digests of the specified file using all available hash functions.
Adding a New Hash Function
How to create a new hash function component and to add it to the library.