decodeDerBitStringOrThrow

decodeDerBitStringOrThrow

Decodes a BIT STRING element (tag 0x03) into a DerBitString.

Unused trailing bits are returned as encoded, with a violation of X.690 §11.2.1 reported through DerBitString.nonZeroPadding, since certificates in the wild carry them.

function decodeDerBitStringOrThrow(
	element: DerElement,
): DerBitString

Parameters

• element: DerElement

Throws

• if element is mis-tagged, or claims more than seven unused bits.