在不使用命令行的Ruby中创建数字签名

require 'openssl'

# 读取私钥和证书
private_key = OpenSSL::PKey::RSA.new(File.read('private_key.pem'))
certificate = OpenSSL::X509::Certificate.new(File.read('certificate.pem'))

# 要签名的数据
data = 'Hello, World!'

# 创建数字签名
signature = private_key.sign(OpenSSL::Digest::SHA256.new, data)

# 验证数字签名
valid = certificate.public_key.verify(OpenSSL::Digest::SHA256.new, signature, data)

puts "数字签名验证结果：#{valid}"