# Packages

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# Constants

ContentEncodingTypeV1 is the old `cty` protected header value, added to maintain backward compatibility as per: https://github.com/hyperledger/aries-rfcs/tree/master/features/0587-encryption-envelope-v2#didcomm-v2-transition.
ContentEncodingTypeV2 is the default JWE `cty` protected header.
EnvelopeEncodingTypeV2 is the default JWE `typ` protected header value as per: https://identity.foundation/didcomm-messaging/spec/#didcomm-encrypted-message andnolint:lll https://github.com/hyperledger/aries-rfcs/blob/master/features/0044-didcomm-file-and-mime-types/README.md#detecting-didcomm-versions for DIDComm compliance.

# Interfaces

Packer is an Aries envelope packer/unpacker to support secure DIDComm exchange of envelopes between Aries agents.
Provider interface for Packer ctx.

# Type aliases

Creator method to create new Packer service.