使用pem证书解码ruby / jwt

Question

我在pem证书中有公钥 我正在尝试使用该公钥解码JWT，得到的错误就像错误的参数数量一样 我知道我必须使用公钥进行解码，但我得到的只是来自open ssl的证书

我认为如果从开放的ssl证书中获取公钥，问题可能会得到解决。 我之前没有尝试过jwt openssl，有人可以帮我这个吗

require 'jwt'

token='eyJhbGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJHZXR0eSBTVFMiLCJzdWIiOiIxMjM0In0.nNqF_osgle1sXYvg4pUoU60LopG1ehhZm4ged0RpxID5bchtigyvK9JqS27qTGkJELg62liQPXo_0DkYV7tr3gRcuFFaq9WlmCmEfxF__dVfcDzHp5NThARZQdRzaBsbsAfLvCJHUwm0wiYmDuCXEieMDkl_BVwEXrfCNxXFRv8'

key = OpenSSL::X509::Certificate.new <<-PEM
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
PEM


decoded_token = JWT.decode token, key, true, { :algorithm => 'RS512' }

Answer 1

证书有# Assuming pem contains the pem encoded string cert = OpenSSL::X509::Certificate.new(pem) key = cert.public_key decoded_token = JWT.decode token, key, true, { :algorithm => 'RS512' } 方法，可以为您提供所需内容：

if (!Character.isLetterOrDigit(ch)) {
    ...
}