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  4. jose-jws-ver(1)

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JOSE-JWS-VER(1)   JOSE-JWS-VER(1)

NAME

jose-jws-ver - Verifies a JWS using the supplied JWKs

SYNOPSIS

jose jws ver -i JWS [-I PAY] -k JWK [-a] [-O PAY]

OVERVIEW

The jose jws ver command verifies a signature over a payload using one or more JWKs. When specifying more than one JWK (-k), the program will succeed when any of the provided JWKs successfully verify a signature. Alternatively, if the -a option is given, the program will succeed only when all JWKs successfully verify a signature.

If the JWS is a detached JWS, meaning that the payload is stored in binary form external to the JWS itself, the payload can be loaded using the -I parameter.

Please note that, when specifying the -O option to output the payload, the payload is output whether or not the signature validates. Therefore, you must check the return value of the command before trusting the data.

OPTIONS

•-i JSON, --input=JSON : Parse JWS from JSON

•-i FILE, --input=FILE : Read JWS from FILE

•-i -, --input=- : Read JWS from standard input

•-I FILE, --detached=FILE : Read decoded payload from FILE

•-I -, --detached=- : Read decoded payload from standard input

•-k FILE, --key=FILE : Read JWK(Set) from FILE

•-k -, --key=- : Read JWK(Set) from standard input

•-O FILE, --detach=FILE : Decode payload to FILE

•-O -, --detach=- : Decode payload to standard output

•-a, --all : Ensure the JWS validates with all keys

EXAMPLES

Verify a regular JWS and output the payload:

$ jose jws ver -i msg.jws -k key.jwk -O msg.txt

Verify a detached JWS without outputting the payload:

$ jose jws ver -i msg.jws -I msg.txt -k key.jwk

Ensure that a JWS is signed with all specified keys:

$ jose jws ver -i msg.jws -k ec.jwk -k rsa.jwk -a

AUTHOR

Nathaniel McCallum <npmccallum@redhat.com>

SEE ALSO

jose-jws-fmt(1), jose-jws-sig(1)

08/09/2021