rsa

SSH Permission denied (publickey)

由 杀马特。学长 韩版系。学妹 提交于 2020-01-15 15:35:58
在测试环境或者生产环境中，会遇到ssh登录服务器是被拒绝的情况; 环境：centos7.6 目录 1、建立新的rsa秘钥文件 2、要修改配置sshd_config 1、建立新的rsa秘钥文件 建立新的rsa秘钥文件测试； mkdir /home/test/.ssh -p chmod 700 /home/test/.ssh touch /home/test/.ssh/authorized_keys chmod 600 /home/test/.ssh/authorized_keys chown test.test /home/hypuppet -R ssh-keygen -t rsa #默认生成的秘钥文件会放到/root/.ssh/下，公钥pubkey cat ssh-rsa-pubkey > /home/test/.ssh/authorized_keys #将公钥文件导入到.ssh/authorized_keys文件中 本地测试用ssh -i rsa -p。。。 2、要修改配置sshd_config vi /etc/ssh/sshd_config PermitRootLogin no #root认证登录 PasswordAuthentication yes #密码验证 PubkeyAuthentication yes #秘钥验证 详细config配置文件参考

CryptographicException: Unknown Error '80007005'. when calling RSACryptoServiceProvider.Decrypt() in .Net Compact Framework

由 牧云@^-^@ 提交于 2020-01-15 10:43:11
问题 I am trying to use the RSACryptoServiceProvider to encrypt/decrypt. Encrypting works fine, but the Decrypt method throws an exception with the message: Unknown Error '80007005'. This is the code: Byte[] plainData = encoding.GetBytes(plainText); Byte[] encryptedData; RSAParameters rsap1; Byte[] decryptedData; using (RSACryptoServiceProvider rsa1 = new RSACryptoServiceProvider()) { encryptedData = rsa1.Encrypt(plainData, false); rsap1 = rsa1.ExportParameters(false); } using

what padding strategy is used by SunJCE SHA1WithRSA

由 旧街凉风 提交于 2020-01-15 10:24:08
问题 Normally both PSS and PKCS1v15 can be used for RSA signatures padding. And for java the code is also simple, but it just can't tell the padding strategy used. My code: Signature signature = Signature.getInstance("SHA1WithRSA"); signature.initSign(privateKey); signature.update(plainBytes); byte[] signBytes = signature.sign(); May I explicitly define PSS with MGF1 as the padding strategy using SunJCE as provider? 回答1: PSS is not present in the supported algorithms list of SunJCE. However

RSA decrypt with Java

由 别等时光非礼了梦想. 提交于 2020-01-15 10:18:06
问题 I am trying to decrypt a string with RSA. It was encrypted in C# on the iPhone and I have the private key. This seems like a silly problem, but all of the examples I have seen show generating the private key. I have the private key (it is a byte[] of hex). It using PKCS#1 padding. The part I cannot figure out how to do is create a java.security.Key object with the private key I already have. Do I need to have them give me the private key in 2 parts...modulus and exponent? Thanks in advance.

Save and Retrieve KeyPair in AndroidKeystore

由 五迷三道 提交于 2020-01-14 10:08:59
问题 I need to generate a RSA 2018 Keypair, then save it, and recover if exist. At this moment, I have this: SecureRandom random = new SecureRandom(); RSAKeyGenParameterSpec spec = new RSAKeyGenParameterSpec(keySize, RSAKeyGenParameterSpec.F4); KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA", "SC"); generator.initialize(spec, random); return generator.generateKeyPair(); This works perfect, but now I tried to save and take it from Android Keystore, but I'm not achieving it. I tryed:

Save and Retrieve KeyPair in AndroidKeystore

由 ▼魔方 西西 提交于 2020-01-14 10:08:55
问题 I need to generate a RSA 2018 Keypair, then save it, and recover if exist. At this moment, I have this: SecureRandom random = new SecureRandom(); RSAKeyGenParameterSpec spec = new RSAKeyGenParameterSpec(keySize, RSAKeyGenParameterSpec.F4); KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA", "SC"); generator.initialize(spec, random); return generator.generateKeyPair(); This works perfect, but now I tried to save and take it from Android Keystore, but I'm not achieving it. I tryed:

Load stored RSA public/private key from disk?

由 狂风中的少年 提交于 2020-01-14 05:37:28
问题 independent from the fact that the private key should be encrypted (which happens independently from this question): I'm generating RSA key pairs using this code: KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA"); kpg.initialize(2048); KeyPair keyPair = kpg.generateKeyPair(); privKey = (RSAPrivateKey)keyPair.getPrivate(); pubKey = (RSAPublicKey)keyPair.getPublic(); byte[] data=privKey.getEncoded(); ... byte[] data=pupKey.getEncoded(); The contents of data are binary and not Base 64

How can I import an RSA public key from either XML or modulus/exponent in native code for use with Windows CAPI's CryptVerifySignature?

由 北慕城南 提交于 2020-01-14 05:29:06
问题 In C#, I am able to validate a hash against a public key in either of the following ways: // Import from raw modulus and exponent using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { RSAParameters rsaKeyInfo = new RSAParameters {Modulus = modulus, Exponent = exponent}; rsa.ImportParameters(rsaKeyInfo); return rsa.VerifyHash(hash, CryptoConfig.MapNameToOID("SHA512"), signature); } // Import from XML using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { rsa

How can I import an RSA public key from either XML or modulus/exponent in native code for use with Windows CAPI's CryptVerifySignature?

由 让人想犯罪 __ 提交于 2020-01-14 05:29:06
问题 In C#, I am able to validate a hash against a public key in either of the following ways: // Import from raw modulus and exponent using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { RSAParameters rsaKeyInfo = new RSAParameters {Modulus = modulus, Exponent = exponent}; rsa.ImportParameters(rsaKeyInfo); return rsa.VerifyHash(hash, CryptoConfig.MapNameToOID("SHA512"), signature); } // Import from XML using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { rsa

Keystore operation failed with RSA sign and verify

由 筅森魡賤 提交于 2020-01-14 03:10:00
问题 I have difficulties to use RSA for signing and verifying. Below is part of my RSA class that I use. The methods init() , privateKey() and publicKey() work fine with encrypt() and decrypt() methods (last two not listed here), so I assume I made some mistake inside of my sign() method. Method verify() wasn't tested yet, because signing was unsuccessful, so I wasn't able to move further. Please take a look... My RSA class is: class RSA { private final static String ANDROID_KEY_STORE =
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