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Versions: 5
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Stored size: 1.91 KB
Contents
class Acme::Client::JWK::Base
THUMBPRINT_DIGEST = OpenSSL::Digest::SHA256
# Initialize a new JWK.
#
# Returns nothing.
def initialize
raise NotImplementedError
end
# Generate a JWS JSON web signature.
#
# header - A Hash of extra header fields to include.
# payload - A Hash of payload data.
#
# Returns a JSON String.
def jws(header: {}, payload: {})
header = jws_header(header)
encoded_header = Acme::Client::Util.urlsafe_base64(header.to_json)
encoded_payload = Acme::Client::Util.urlsafe_base64(payload.to_json)
signature_data = "#{encoded_header}.#{encoded_payload}"
signature = sign(signature_data)
encoded_signature = Acme::Client::Util.urlsafe_base64(signature)
{
protected: encoded_header,
payload: encoded_payload,
signature: encoded_signature
}.to_json
end
# Serialize this JWK as JSON.
#
# Returns a JSON string.
def to_json
to_h.to_json
end
# Get this JWK as a Hash for JSON serialization.
#
# Returns a Hash.
def to_h
raise NotImplementedError
end
# JWK thumbprint as used for key authorization.
#
# Returns a String.
def thumbprint
Acme::Client::Util.urlsafe_base64(THUMBPRINT_DIGEST.digest(to_json))
end
# Header fields for a JSON web signature.
#
# typ: - Value for the `typ` field. Default 'JWT'.
#
# Returns a Hash.
def jws_header(header)
jws = {
typ: 'JWT',
alg: jwa_alg
}.merge(header)
jws[:jwk] = to_h if header[:kid].nil?
jws
end
# The name of the algorithm as needed for the `alg` member of a JWS object.
#
# Returns a String.
def jwa_alg
raise NotImplementedError
end
# Sign a message with the private key.
#
# message - A String message to sign.
#
# Returns a String signature.
# rubocop:disable Lint/UnusedMethodArgument
def sign(message)
raise NotImplementedError
end
# rubocop:enable Lint/UnusedMethodArgument
end
Version data entries
5 entries across 5 versions & 1 rubygems