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Buffers

This page contains the primitives and their associated functions for buffer primitves within blib.

MeasuredBuffer

A general-purpose buffer with an assigned length up to DWORD bytes.

typedef struct _MeasuredBuffer {
    DWORD length;
    char* buffer;
} MeasuredBuffer;

Initialisers

MeasuredBuffer* vallocMeasuredBuffer(DWORD bytes)

Allocated a measured buffer DWORD bytes using valloc.

MeasuredBuffer* hallocMeasuredBuffer(DWORD bytes)

Allocated a measured buffer DWORD bytes using halloc.

Methods

BOOL bEncryptMeasuredBufferEx(void* algorithm, long* key, unsigned int keyLength, MeasuredBuffer* buffer)

Symmetrically encrypts or decrypts a MeasuredBuffer using the user supplied void algorithm.

CryptoBuffer

A 'cryptographic' primitive composed of two MeasuredBuffers and a metadata element for an encryption type.

typedef enum _BLIB_ENCRYPTION_METHOD {
    BLIB_ENCRYPTION_NONE,
    BLIB_ENCRYPTION_UNDEFINED,
    BLIB_ENCRYPTION_STATIC_XOR,
} BLIB_ENCRYPTION_METHOD;

typedef struct _EncryptedBuffer{
    BLIB_ENCRYPTION_METHOD encryptionMethod;
    MeasuredBuffer keyBuffer;
    MeasuredBuffer dataBuffer;
} CryptoBuffer;

Methods

BOOL bEncryptBuffer(CryptoBuffer* buffer)

Symmetrically encrypts or decrypts a CryptoBuffer using the accompanying method defined in the encryptionMethod field of the CryptoBuffer.

BOOL bEncryptBufferEx(void* algorithm, CryptoBuffer* buffer)

Symmetrically encrypts or decrypts a CryptoBuffer using the user supplied void algorithm.

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