在 this RailsCast on PayPal它向您展示了如何在将 URL 参数发送到 PayPal 之前对其进行加密。
PAYPAL_CERT_PEM = File.read("#{Rails.root}/certs/paypal_cert.pem")
APP_CERT_PEM = File.read("#{Rails.root}/certs/app_cert.pem")
APP_KEY_PEM = File.read("#{Rails.root}/certs/app_key.pem")
def encrypt_for_paypal(values)
signed = OpenSSL::PKCS7::sign(OpenSSL::X509::Certificate.new(APP_CERT_PEM), OpenSSL::PKey::RSA.new(APP_KEY_PEM, ''), values.map { |k, v| "#{k}=#{v}" }.join("\n"), [], OpenSSL::PKCS7::BINARY)
OpenSSL::PKCS7::encrypt([OpenSSL::X509::Certificate.new(PAYPAL_CERT_PEM)], signed.to_der, OpenSSL::Cipher::Cipher::new("DES3"), OpenSSL::PKCS7::BINARY).to_s.gsub("\n", "")
end
假设我正在为 PayPal 的服务器编写代码。我将如何解密这个字符串?在我看来,这段代码既用公钥对字符串进行签名(以验证真实性),又对字符串进行加密(以提供隐私)。用于执行反向操作、解密和验证真实性的代码是什么?
谢谢。
最佳答案
嗨约翰,这里是使用 ruby openssl 加密/解密的示例。 请注意,它使用 AES 作为密码,因为 DES3 似乎在我的 ruby openssl 版本中被删除。 在字符串上调用 gsub 来替换换行符似乎会破坏它,所以我将其注释掉。 希望对您有所帮助。
require 'openssl'
PAYPAL_CERT_PEM = File.read("paypal_cert.pem")
@paypal_cert = OpenSSL::X509::Certificate.new(PAYPAL_CERT_PEM)
APP_CERT_PEM = File.read("app_cert.pem")
@app_cert = OpenSSL::X509::Certificate.new(APP_CERT_PEM)
APP_KEY_PEM = File.read("app_key.pem")
@app_key = OpenSSL::PKey::RSA.new(APP_KEY_PEM, '')
PAYPAL_KEY_PEM = File.read("paypal_key.pem")
@paypal_key = OpenSSL::PKey::RSA.new(PAYPAL_KEY_PEM, '')
CERT_STORE = OpenSSL::X509::Store.new
CERT_STORE.add_cert(@app_cert)
data = Hash.new
data['customer_id'] = '123456789'
data['customer_name'] = 'Mr Smith'
def encrypt_for_paypal(values)
data_name_values = values.map { |k, v| "#{k}=#{v}" }
signed_data = OpenSSL::PKCS7::sign(@app_cert, @app_key, data_name_values.join("\n"), [], OpenSSL::PKCS7::BINARY)
cypher = OpenSSL::Cipher::new("AES-128-CFB")
encrypted_data = OpenSSL::PKCS7::encrypt([@paypal_cert], signed_data.to_der, cypher, OpenSSL::PKCS7::BINARY)
encrypted_data.to_s #.gsub("\n", "")
end
def decrypt_by_paypal(encrypted_data)
received_encrypted_data = OpenSSL::PKCS7.new(encrypted_data)
received_signed_data = received_encrypted_data.decrypt(@paypal_key, @paypal_cert)
p7_received_signed_data = OpenSSL::PKCS7.new(received_signed_data)
p7_received_signed_data.verify(nil, CERT_STORE, nil, OpenSSL::PKCS7::NOVERIFY)
p7_received_signed_data.data
end
encrypted_txt = encrypt_for_paypal data
puts decrypt_by_paypal encrypted_txt
关于ruby-on-rails - 在Ruby/Rails中,如何解密由PKCS7加密和签名的字符串,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9062830/