# TAG_ENCRYPT0

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

Defined in: [packages/filecoin-encryption-envelope/src/cose/constants.ts:93](https://github.com/FilOzone/synapse-sdk/blob/9ad84d812e1dd635b76420a7d9388555a04f31b6/packages/filecoin-encryption-envelope/src/cose/constants.ts#L93)

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