F＃RSA解密不适用于单独的公钥和私钥

问题描述

我在这里有以下代码：

let rsa = RSA.Create(2048)
let msg : byte[] = someBytes // 'someBytes' are just some bytes,not relevant for this example

let publicKey1 : byte[] = someBytes
let privateKey1 : byte[] = someBytes
let publicKey2 : byte[] = someBytes
let privateKey2 : byte[] = someBytes

rsa.ImportRSAPublicKey(ReadOnlySpan<byte>(publicKey1),ref 2048)
rsa.ImportRSAPrivateKey(ReadOnlySpan<byte>(privateKey2),ref 2048)

let encryptedMsg = rsa.Encrypt(msg,RSAEncryptionPadding.OaepSHA256)

rsa.ImportRSAPrivateKey(ReadOnlySpan<byte>(privateKey1),ref 2048)

let decryptedMsg = rsa.Decrypt(encryptedMsg,RSAEncryptionPadding.OaepSHA256)

运行它时，出现以下错误：

Unhandled exception. Internal.Cryptography.CryptoThrowHelper+WindowsCryptographicException: The parameter is incorrect.
   at System.Security.Cryptography.RSAImplementation.RSACng.EncryptOrDecrypt(SafeNCryptKeyHandle key,ReadOnlySpan`1 input,AsymmetricPaddingMode paddingMode,Void* paddingInfo,Boolean encrypt)
   at System.Security.Cryptography.RSAImplementation.RSACng.EncryptOrDecrypt(Byte[] data,RSAEncryptionPadding padding,Boolean encrypt)
   at System.Security.Cryptography.RSAImplementation.RSACng.Decrypt(Byte[] data,RSAEncryptionPadding padding)
   at Program(Byte[] msg,Byte[] key,Byte[] iv) in ...
   at Program.main(String[] _arg1) in ...

当我删除rsa.ImportRSAPrivateKey(ReadOnlySpan<byte>(privateKey2),ref 2048)行时，代码运行正常。

我的问题是，为什么在第一种情况下，加密还某种程度上取决于私钥，而当我解密时，会出现此错误？

解决方法

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