com.goterl.lazysodium.interfaces

Interface Padding.Native

All Known Implementing Classes:

LazySodium, LazySodiumJava

Enclosing interface:

Padding

public static interface Padding.Native

Method Summary

Modifier and Type	Method and Description
boolean	sodiumPad(com.sun.jna.ptr.IntByReference paddedBuffLen, com.sun.jna.Pointer buf, int unpaddedBufLen, int blockSize, int maxBufLen) Adds extra padding to a buffer buf whose original size is unpaddedBufLen in order to extend its total length to a multiple of blocksize.
boolean	sodiumUnpad(com.sun.jna.ptr.IntByReference unpaddedBufLen, com.sun.jna.Pointer buf, int paddedBufLen, int blockSize) Computes the original, unpadded length of a message previously padded using sodiumPad(IntByReference, Pointer, int, int, int).

Method Detail

sodiumPad

boolean sodiumPad(com.sun.jna.ptr.IntByReference paddedBuffLen,
                  com.sun.jna.Pointer buf,
                  int unpaddedBufLen,
                  int blockSize,
                  int maxBufLen)

Adds extra padding to a buffer buf whose original size is unpaddedBufLen in order to extend its total length to a multiple of blocksize.

Parameters:

paddedBuffLen - New length of buffer.

buf - The buffer byte array.

unpaddedBufLen - The length of buf with no padding.

blockSize - Block size.

maxBufLen - The absolute maximum you want this buffer length to be.

Returns:

False if the padded buffer length would exceed maxBufLen.

sodiumUnpad

boolean sodiumUnpad(com.sun.jna.ptr.IntByReference unpaddedBufLen,
                    com.sun.jna.Pointer buf,
                    int paddedBufLen,
                    int blockSize)

Computes the original, unpadded length of a message previously padded using sodiumPad(IntByReference, Pointer, int, int, int). The original length is put into unpaddedBufLen.

Parameters:

unpaddedBufLen - This will be populated with the unpadded buffer length.

buf - The buffer.

paddedBufLen - The padded buffer size.

blockSize - The block size.

Returns:

True if the buffer was unpadded.