decryptRangeWith

decryptRangeWith(source, unwrapper, range, options?): Promise<RangeResult>

Like decryptRange, but recovers the CEK from the envelope’s recipients through unwrapper.

Tag 96 only: a tag-16 object fails with NoUsableRecipientError without calling unwrapper.
unwrapper is called once, with copies of every recipient in wire order, also when options.params skips the envelope read; its CEK is validated.
The range is planned first and the key recovered before the promise settles, so recipient failures reject it, never the stream.

Parameters

Parameter	Type
`source`	`Uint8Array`<`ArrayBufferLike`> \| `RandomAccessSource`
`unwrapper`	`Unwrapper`
`range`	`ByteRange`
`options?`	`RangeDecryptOptions`