using Org.BouncyCastle.Math; using Org.BouncyCastle.Crypto.Parameters; using Org.BouncyCastle.Security; using Org.BouncyCastle.Asn1.X509; using Org.BouncyCastle.X509; using Org.BouncyCastle.Asn1.Pkcs; using Org.BouncyCastle.Pkcs; using System; using
using System; using System.IO; using System.Security.Cryptography; using System.Text; namespace ClassLibrary1 { class Code { //1.base64 to string public static string Base64Encrypt(string strPath) { byte[] bpath = Convert.FromBase64String(strPath); s
该工具类中用到了BASE64,需要借助第三方类库:javabase64-1.3.1.jar注意:RSA加密明文最大长度117字节,解密要求密文最大长度为128字节,所以在加密和解密的过程中需要分块进行.RSA加密对明文的长度是有限制的,如果加密数据过大会抛出如下异常: Exception in thread "main" javax.crypto.IllegalBlockSizeException: Data must not be longer than 117 bytes at c