Encoding¶

Encoding & Hashing

type EHashAlgo = enum(SHA1, SHA256, SHA384, SHA512, MD5);

Note

This enum is scoped, so must be used like EHashAlgo.SHA512

type EBaseEncoding = enum(b64URL, b64, b32, b32Hex, b16);

Note

This enum is scoped, so must be used like EBaseEncoding.b64

function HashData(Algo: EHashAlgo; Buf: PByte; Len: Int32): String;

function HashString(Algo: EHashAlgo; S: String): String;

function HashFile(Algo: EHashAlgo; FileName: String): String;

function Hash32(Data: Pointer; Len: Int32; Seed: UInt32 = 0): UInt32;

Computes a UInt32 hash of data using xxhash32 algorithm. https://xxhash.com/

function Hash32(S: String; Seed: UInt32 = 0): UInt32;

Computes a UInt32 hash of string using xxhash32 algorithm. https://xxhash.com/

function BaseEncode(Encoding: EBaseEncoding; const Data: String): String;

function BaseDecode(Encoding: EBaseEncoding; const Data: String): String;

type ECompressAlgo = enum(ZLIB, SYNLZ, GZ);

Note

This enum is scoped, so must be used like ECompressAlgo.ZLIB

procedure CompressData(Algo: ECompressAlgo; InData: Pointer; InSize: Int64; out OutData: Pointer; out OutSize: Int64);

procedure DecompressData(Algo: ECompressAlgo; InData: Pointer; InSize: Int64; out OutData: Pointer; out OutSize: Int64);

function CompressBytes(Algo: ECompressAlgo; Bytes: TByteArray): TByteArray;

function DecompressBytes(Algo: ECompressAlgo; Bytes: TByteArray): TByteArray;

function CompressString(Algo: ECompressAlgo; Encoding: EBaseEncoding; Str: String): String;

function DecompressString(Algo: ESimbaCompressAlgo; Encoding: EBaseEncoding; Str: String): String;

function HOTPCalculateToken(const Secret: String; const Counter: Integer): Integer;
function TOTPCalculateToken(const Secret: String): Integer;

HOTP and TOTP One-time password algorithms. Compatible with Google Authenticator.