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Crypto: Difference between revisions
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==getRandomValues== | ==getRandomValues== | ||
The ''getRandomValues'' method fills ''array'' with random data. Specifically, if ''array'' is an [http://www.khronos.org/registry/typedarray/specs/latest/#6 ArrayBufferView] of an integer type (i.e., Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, or Uint32Array), then all the elements of ''array'' are overwritten with ''cryptographically random values'' | The ''getRandomValues'' method fills ''array'' with random data. Specifically, if ''array'' is an [http://www.khronos.org/registry/typedarray/specs/latest/#6 ArrayBufferView] of an integer type (i.e., Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, or Uint32Array), then all the elements of ''array'' are overwritten with ''cryptographically random values''. If ''array'' is not of an appropriate type, ''getRandomValues'' throws a [http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#dom-domexception-type_mismatch_err TYPE_MISMATCH_ERR]. If no ''cryptographically random values'' are available, ''getRandomValues'' throws a [http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#dom-domexception-not_supported_err NOT_SUPPORTED_ERR]. | ||
Revision as of 21:58, 14 February 2011
Overview
This document describes a proposal for the window.crypto API.
Interface
[Suplemental, NoInterfaceObject]
interface Window {
readonly attribute Crypto crypto;
};
[NoInterfaceObject]
interface Crypto {
void getRandomValues(in ArrayBufferView array);
};
Methods
getRandomValues
The getRandomValues method fills array with random data. Specifically, if array is an ArrayBufferView of an integer type (i.e., Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, or Uint32Array), then all the elements of array are overwritten with cryptographically random values. If array is not of an appropriate type, getRandomValues throws a TYPE_MISMATCH_ERR. If no cryptographically random values are available, getRandomValues throws a NOT_SUPPORTED_ERR.