. NET core RSA help class,. netcorersa help

. NET core RSA help class,. netcorersa help

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Public class RSAHelper {// <summary> // Private Key signature /// </summary> /// <param name = "signStr"> </param> // /<param name = "privateKey"> </param> // <returns> </returns> public static string RSASign (string signStr, string privateKey) {try {// net // var rsa = new RSACryptoServiceProvider (); // rsa. fromXmlString (privateKey); // byte [] signBytes = rsa. signData (UTF8Encoding. UTF8.GetBytes (signStr), "md5"); // re Turn Convert. toBase64String (signBytes); // net core 2.0 var rsa = RSA. create (); rsa. fromXmlStringExtensions (privateKey); byte [] bytes = rsa. signData (UTF8Encoding. UTF8.GetBytes (signStr), HashAlgorithmName. MD5, RSASignaturePadding. pkcs1); return Convert. toBase64String (bytes);} catch (Exception e) {throw e ;}} /// <summary> /// Public Key signature /// </summary> /// <param name = "encrypt_info"> </param> // <param Name = "publicKey"> </param> // <returns> </returns> public static string RSAEncrypt (string strEncryptInfo, string publicKey) {try {// net // RSACryptoServiceProvider rsa = new RSACryptoServiceProvider (); // rsa. fromXmlString (strPublicKey); // byte [] bytes = rsa. encrypt (UTF8Encoding. UTF8.GetBytes (strEncryptInfo), false); // return Convert. toBase64String (bytes); // net core 2.0 var rsa = RSA. create (); PublicKey = RSAPublicKeyJava2DotNet (publicKey); rsa. fromXmlStringExtensions (publicKey); byte [] bytes = rsa. encrypt (UTF8Encoding. UTF8.GetBytes (strEncryptInfo), RSAEncryptionPadding. pkcs1); return Convert. toBase64String (bytes);} catch (Exception e) {throw e ;}} /// <summary> // RSA private key format conversion // </summary> // <param name = "privateKey"> </param> // <returns> </returns> public static string rs1_vat EKeyJava2DotNet (string privateKey) {if (string. isNullOrEmpty (privateKey) {return string. empty;} RsaPrivateCrtKeyParameters privateKeyParam = (RsaPrivateCrtKeyParameters) PrivateKeyFactory. createKey (Convert. fromBase64String (privateKey); 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> ", Convert. toBase64String (privateKeyParam. modulus. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. publicExponent. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. p. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. q. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. DP. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. DQ. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. QInv. toByteArrayUnsigned (), Convert. toBase64String (privateKeyParam. exponent. toByteArrayUnsigned ()));} /// <summary> // RSA public key format conversion /// </summary> /// <param name = "publicKey"> </param> // <returns> Format Conversion Result </returns> public static string RSAPublicKeyJava2DotNet (string publicKey) {if (string. isNullOrEmpty (publicKey) {return string. Empty;} RsaKeyParameters publicKeyParam = (RsaKeyParameters) PublicKeyFactory. createKey (Convert. fromBase64String (publicKey); return string. format ("<RSAKeyValue> <Modulus> {0} </Modulus> <Exponent> {1} </Exponent> </RSAKeyValue>", Convert. toBase64String (publicKeyParam. modulus. toByteArrayUnsigned (), Convert. toBase64String (publicKeyParam. exponent. toByteArrayUnsigned ();} // <summary> // public key verification // </s Ummary> /// <param name = "plainText"> </param> /// <param name = "publicKey"> </param> // <param name =" signedData "> </param> // <returns> </returns> public static bool ValidateRsaSign (string plainText, string publicKey, string signedData) {try {// net // RSACryptoServiceProvider rsa = new RSACryptoServiceProvider (); // rsa. fromXmlString (publicKey); // return rsa. verifyData (UTF8Encoding. UTF8.GetBytes (p LainText), "md5", Convert. fromBase64String (signedData); // net core 2.0 var rsa = RSA. create (); rsa. fromXmlStringExtensions (publicKey); return rsa. verifyData (UTF8Encoding. UTF8.GetBytes (plainText), Convert. fromBase64String (signedData), HashAlgorithmName. MD5, RSASignaturePadding. pkcs1);} catch (Exception e) {throw e ;}}/// <summary> // System. security. cryptography. RSA Extension Method // </summary> I Nternal static class RSAExtensions {// Operation is not supported on this platform exception will occur in both of the following ways: // RSA. create (). fromXmlString (privateKey) // new RSACryptoServiceProvider (). fromXmlString (privateKey) /// <summary> /// extended FromXmlString /// </summary> /// <param name = "rsa"> </param> /// <param name = "xmlString"> </param> public static void FromXmlStringExtensions (this RSA rsa, string xmlString) {RS AParameters parameters = new RSAParameters (); XmlDocument xmlDoc = new XmlDocument (); xmlDoc. loadXml (xmlString); if (xmlDoc. documentElement. name. equals ("RSAKeyValue") {foreach (XmlNode node in xmlDoc. documentElement. childNodes) {switch (node. name) {case "Modulus": parameters. modulus = (string. isNullOrEmpty (node. innerText )? Null: Convert. FromBase64String (node. InnerText); break; case "Exponent": parameters. Exponent = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "P": parameters. P = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "Q": parameters. Q = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "DP": parameters. DP = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "DQ": parameters. DQ = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "InverseQ": parameters. InverseQ = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. FromBase64String (node. InnerText); break; case "D": parameters. D = (string. IsNullOrEmpty (node. InnerText )? Null: Convert. fromBase64String (node. innerText); break ;}} else {throw new Exception ("Invalid xml rsa key. ");} rsa. importParameters (parameters );} /// <summary> /// extended ToXmlString /// </summary> /// <param name = "rsa"> </param> /// <param name = "includePrivateParameters"> </param> // <returns> </returns> public static string ToXmlStringExtensions (this RSA rsa, bool includePrivateParameters) {RSA Parameters parameters = rsa. exportParameters (includePrivateParameters); 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> ", parameters. modulus! = Null? Convert. ToBase64String (parameters. Modulus): null, parameters. Exponent! = Null? Convert. ToBase64String (parameters. Exponent): null, parameters. P! = Null? Convert. ToBase64String (parameters. P): null, parameters. Q! = Null? Convert. ToBase64String (parameters. Q): null, parameters. DP! = Null? Convert. ToBase64String (parameters. DP): null, parameters. DQ! = Null? Convert. ToBase64String (parameters. DQ): null, parameters. InverseQ! = Null? Convert. ToBase64String (parameters. InverseQ): null, parameters. D! = Null? Convert. ToBase64String (parameters. D): null );}}View Code

 

Refer:

Http://www.cnblogs.com/dudu/p/dotnet-core-rsa-openssl.html

Https://github.com/dotnet/core/issues/874