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import { isoCBOR } from "./iso/index.ts";
/**
* Convert an AttestationObject buffer to a proper object
*
* @param base64AttestationObject Attestation Object buffer
*/
export function decodeAttestationObject(
attestationObject: Uint8Array,
): AttestationObject {
return _decodeAttestationObjectInternals.stubThis(
isoCBOR.decodeFirst<AttestationObject>(attestationObject),
);
}
export type AttestationFormat =
| "fido-u2f"
| "packed"
| "android-safetynet"
| "android-key"
| "tpm"
| "apple"
| "none";
export type AttestationObject = {
get(key: "fmt"): AttestationFormat;
get(key: "attStmt"): AttestationStatement;
get(key: "authData"): Uint8Array;
};
/**
* `AttestationStatement` will be an instance of `Map`, but these keys help make finite the list of
* possible values within it.
*/
export type AttestationStatement = {
get(key: "sig"): Uint8Array | undefined;
get(key: "x5c"): Uint8Array[] | undefined;
get(key: "response"): Uint8Array | undefined;
get(key: "alg"): number | undefined;
get(key: "ver"): string | undefined;
get(key: "certInfo"): Uint8Array | undefined;
get(key: "pubArea"): Uint8Array | undefined;
// `Map` properties
readonly size: number;
};
// Make it possible to stub the return value during testing
export const _decodeAttestationObjectInternals = {
stubThis: (value: AttestationObject) => value,
};
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