RFC 8152 CBOR Object Signing and Encryption (COSE)

 This library provides Ruby implementation of RFC 8152 CBOR Object Signing and
 Encryption (COSE).
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 CBOR (Concise Binary Object Representation) is a data format whose design
 goals include the possibility of extremely small code size, fairly small
 message size, and extensibility without the need for version negotiation.