包含多个OpenSSL实例，可以让初学者很快掌握有关OpenSSL加密，解密，签名，认证函数的使用，VC++ 6.0平台-OpenSSL_study.rar contains multiple instances, allowing beginners to quickly master the use of the functions about OpenSSL encryption, decryption, signature and authentication , VC++ 6.0 Pl

An immutable certificate path that can be validated. All certificates in the path are of the same type (i.e., X509).