Python Alipay(支付宝) SDK with SHA1/SHA256 support

c# dotnet .NET Framework/Standard/Core RSA Provides: Encrypt,Decrypt,Signature,Verify; RSA key format: PEM (PKCS#1 PKCS#8), XML, Public Private Key, Import Export Convert; Padding support: NoPadding,PKCS1,OAEP,PSS, & MD5,SHA1,SHA256,SHA512,SHA3-256,SHA3-512 etc. Code with zero dependencies. RSA公钥私钥导入导出转换、加密解密、签名验证，多种填充方式支持。

Java RSA Provides: Encrypt,Decrypt,Signature,Verify; RSA key format: PEM (PKCS#1 PKCS#8), XML, Public Private Key, Import Export Convert; Padding support: NoPadding,PKCS1,OAEP,PSS, & MD5,SHA1,SHA256,SHA512,SHA3-256,SHA3-512 etc. Code with zero dependencies. RSA公钥私钥导入导出转换、加密解密、签名验证，多种填充方式支持。

银联接口对接 签名加解密 (可以直接当工具使用)

使用openssl 处理对称加密解密

A simple, safe way to encrypt a JSON object to be transported over the Internet using OpenSSL along with SHA256 signatures.