C#中RSA加密与解密的实例详解
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2022-06-21 20:28:28
1. rsa加密与解密 -- 使用公钥加密、私钥解密
public class rsatool
{
public s...
1. rsa加密与解密 -- 使用公钥加密、私钥解密
public class rsatool { public string encrypt(string strtext, string strpublickey) { rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(); rsa.fromxmlstring(strpublickey); byte[] bytetext = encoding.utf8.getbytes(strtext); byte[] byteentry = rsa.encrypt(bytetext, false); return convert.tobase64string(byteentry); } public string decrypt(string strentrytext,string strprivatekey) { rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(); rsa.fromxmlstring(strprivatekey); byte[] byteentry = convert.frombase64string(strentrytext); byte[] bytetext = rsa.decrypt(byteentry, false); return encoding.utf8.getstring(bytetext); } public dictionary<string,string> getkey() { dictionary<string, string> dictkey = new dictionary<string, string>(); rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(); dictkey.add("publickey", rsa.toxmlstring(false)); dictkey.add("privatekey", rsa.toxmlstring(true)); return dictkey; } }
测试:
rsatool myrsa = new rsatool(); dictionary<string, string> dictk = new dictionary<string, string>(); dictk = myrsa.getkey(); string strtext = "123456"; console.writeline("要加密的字符串是:{0}", strtext); string str1 = myrsa.encrypt("123456", dictk["publickey"]); console.writeline("加密后的字符串:{0}", str1); string str2 = myrsa.decrypt(str1, dictk["privatekey"]); console.writeline("解密后的字符串:{0}", str2);
2. rsa加密与解密 -- 使用同一个密钥容器进行加密与解密
public class rsatoolx { public string encrypt(string strtext) { cspparameters csapars = new cspparameters(); csapars.keycontainername = "test001"; rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(csapars); byte[] bytetext = encoding.utf8.getbytes(strtext); byte[] byteentry = rsa.encrypt(bytetext, false); return convert.tobase64string(byteentry); } public string decrypt(string strentrytext) { cspparameters csapars = new cspparameters(); csapars.keycontainername = "test001"; rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(csapars); byte[] byteentry = convert.frombase64string(strentrytext); byte[] bytetext = rsa.decrypt(byteentry, false); return encoding.utf8.getstring(bytetext); } }
测试 :
rsatoolx myrsa = new rsatoolx(); string strtext = "123456"; console.writeline("要加密的字符串是:{0}", strtext); string str1 = myrsa.encrypt("123456"); console.writeline("加密后的字符串:{0}", str1); string str2 = myrsa.decrypt(str1); console.writeline("解密后的字符串:{0}", str2);
总结
以上所述是小编给大家介绍的c#中rsa加密与解密的实例详解,希望对大家有所帮助