Padding

Bindings for the padding API. See the libsodium padding docs for more information.

sodium_pad

sodium-native

var paddedLength = sodium.sodium_pad(buf, unpaddedLength, blocksize)

Pads buf with random data from index unpaddedLength up to closest multiple of blocksize.

  • buf must be a buffer
  • unpaddedLength must be an integer at most buf.length
  • blocksize must be an integer greater than 1, but at most buf.length

Returns the length of the padded data (so you may .slice the buffer to here).

sodium_unpad

sodium-native

var unpaddedLength = sodium.sodium_unpad(buf, paddedLength, blocksize)

Calculates unpaddedLength from a padded buf with blocksize.

  • buf must be a buffer
  • paddedLength must be an integer at most buf.length
  • blocksize must be an integer greater than 1, but at most buf.length

Returns the length of the unpadded data (so you may .slice the buffer to here).

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