subjectAltNameToString

subjectAltNameToString

Renders one SubjectAltName as text.

variant	rendering
dns, ip, email, uri, srv	the value itself
directoryName	distinguishedNameToString of the embedded name, or the DER hex if it does not decode
unknown	lowercase hex of the raw content bytes

function subjectAltNameToString(
	name: SubjectAltName,
	options?: SubjectAltNameTextOptions,
): string

Parameters

• name: SubjectAltName
• options?: SubjectAltNameTextOptions

Examples

Render every SAN of a parsed certificate

const names = (parsed.subjectAltNames ?? []).map((name) => subjectAltNameToString(name));
// ['example.com', '192.0.2.1', 'CN=Example CA,C=US']

subjectAltNameToString({ type: 'dns', value: 'example.com' }, { prefix: true }); // 'DNS:example.com'