# TAG_ENCRYPT0

> `const` **TAG\_ENCRYPT0**: `16` = `16`

Defined in: [packages/filecoin-encryption-envelope/src/constants.ts:57](https://github.com/FilOzone/synapse-sdk/blob/4fe24ea1c76c9b1fa1489b7cdbb1cc279bd2576a/packages/filecoin-encryption-envelope/src/constants.ts#L57)

`COSE_Encrypt0`, RFC 9052 §5.2. No recipients array; used when the CEK is out of band.