【RSA加密】PEM格式密钥转换成XML格式（方法一）

Nuget首先需要添加引用：Portable.BouncyCastle

 

 1         /// <summary>    
 2         /// PEM格式公钥转换成XML格式公钥
 3         /// </summary>    
 4         /// <param name="publicKey">PEM格式公钥，（纯文字字符，注意不带-----BEGIN PUBLIC KEY-----和-----END PUBLIC KEY-----）</param>
 5         /// <returns>转换后的XML格式公钥</returns>    
 6         public static string RSAPublicKeyXML(string publicKey)
 7         {
 8             RsaKeyParameters publicKeyParam = (RsaKeyParameters)PublicKeyFactory.CreateKey(Convert.FromBase64String(publicKey));
 9 
10             return string.Format("<RSAKeyValue><Modulus>{0}</Modulus><Exponent>{1}</Exponent></RSAKeyValue>",
11                     Convert.ToBase64String(publicKeyParam.Modulus.ToByteArrayUnsigned()),
12                     Convert.ToBase64String(publicKeyParam.Exponent.ToByteArrayUnsigned()));
13         }

 

 1         /// <summary>  
 2         /// PEM格式私钥转换成XML格式私钥
 3         /// </summary>  
 4         /// <param name="privateKey">PEM格式私钥，（纯文字字符，注意不带-----BEGIN PRIVATE KEY-----和-----END PRIVATE KEY-----）</param>  
 5         /// <returns></returns>  
 6         public static string RSAPrivateKeyToXml(string privateKey)
 7         {
 8             RsaPrivateCrtKeyParameters privateKeyParam = (RsaPrivateCrtKeyParameters)PrivateKeyFactory.CreateKey(Convert.FromBase64String(privateKey));
 9 
10             return string.Format("<RSAKeyValue><Modulus>{0}</Modulus><Exponent>{1}</Exponent><P>{2}</P><Q>{3}</Q><DP>{4}</DP><DQ>{5}</DQ><InverseQ>{6}</InverseQ><D>{7}</D></RSAKeyValue>",
11                 Convert.ToBase64String(privateKeyParam.Modulus.ToByteArrayUnsigned()),
12                 Convert.ToBase64String(privateKeyParam.PublicExponent.ToByteArrayUnsigned()),
13                 Convert.ToBase64String(privateKeyParam.P.ToByteArrayUnsigned()),
14                 Convert.ToBase64String(privateKeyParam.Q.ToByteArrayUnsigned()),
15                 Convert.ToBase64String(privateKeyParam.DP.ToByteArrayUnsigned()),
16                 Convert.ToBase64String(privateKeyParam.DQ.ToByteArrayUnsigned()),
17                 Convert.ToBase64String(privateKeyParam.QInv.ToByteArrayUnsigned()),
18                 Convert.ToBase64String(privateKeyParam.Exponent.ToByteArrayUnsigned()));
19         }

 

posted @ 2021-08-25 14:26  张伟大  阅读(1835)  评论(0)  编辑  收藏  举报