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go library for CBOR Object Signing and Encryption (COSE)

License: Mozilla Public License 2.0

Makefile 0.84% Go 99.16%

go-cose's Introduction

go-cose

A COSE library for go.

It currently supports signing and verifying the SignMessage type with the ES{256,384,512} and PS256 algorithms.

Usage

Install

go get -u go.mozilla.org/cose

Signing a message

See example/sign.go and run it with:

$ go run example/sign.go
Bit lengths of integers r and s (256 and 256) do not match the key length 255
Message signature (ES256): 043685f99421f9e80c7c3c50d0fc8266161d3d614aaa3b63d2cdf581713fca62bb5d2e34d2352dbe41424b31d0b4a11d6b2d4764c18e2af04f4520fbe494d51c

Verifying a message

See example/verify.go and run it with:

$ go run example/verify.go
Bit lengths of integers r and s (256 and 254) do not match the key length 254
Message signature (ES256): 9411dc5200c1cb67ccd76424ade09ce89c4a8d8d2b66f2bbf70edf63beb2dc3cbde83250773e659b635d3715442a1efaa6b0c030ee8a2523c3e37a22ddb055fa
Message signature verified

Development

Running tests:

Install rust and cargo
On OSX: brew install nss nss then in sign_verify_cose_rust_cli_test.go add NSS_LIB_DIR to cmd or -L /usr/local/opt/nss/lib to RUSTFLAGS e.g. cmd.Env = append(os.Environ(), "NSS_LIB_DIR=/usr/local/opt/nss/lib", "RUSTFLAGS=-A dead_code -A unused_imports")
If you already have dep and golint commands installed, run make install-godep install-golint
Run go test

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