bouncycastle

问题 I am generating a keypair like below: public static void main(String args[]) throws Exception{ StringWriter pemStrWriter = new StringWriter(); JcaPEMWriter pemWriter = new JcaPEMWriter(pemStrWriter); Security.addProvider(new BouncyCastleProvider()); KeyPairGenerator g = KeyPairGenerator.getInstance("ECDSA", "BC"); ECGenParameterSpec spec = new ECGenParameterSpec("secp256r1"); g.initialize(spec); KeyPair keyPair = g.generateKeyPair(); pemWriter.writeObject(new JcaPKCS8Generator(keyPair

问题 I am generating a keypair like below: public static void main(String args[]) throws Exception{ StringWriter pemStrWriter = new StringWriter(); JcaPEMWriter pemWriter = new JcaPEMWriter(pemStrWriter); Security.addProvider(new BouncyCastleProvider()); KeyPairGenerator g = KeyPairGenerator.getInstance("ECDSA", "BC"); ECGenParameterSpec spec = new ECGenParameterSpec("secp256r1"); g.initialize(spec); KeyPair keyPair = g.generateKeyPair(); pemWriter.writeObject(new JcaPKCS8Generator(keyPair

问题 I have a method that generates a keypair as below: public void create() throws Exception{ StringWriter pemStrWriter = new StringWriter(); JcaPEMWriter pemWriter = new JcaPEMWriter(pemStrWriter); Security.addProvider(new BouncyCastleProvider()); KeyPairGenerator g = KeyPairGenerator.getInstance("ECDSA", "BC"); ECGenParameterSpec spec = new ECGenParameterSpec("secp256r1"); g.initialize(spec); KeyPair keyPair = g.generateKeyPair(); pemWriter.writeObject(keyPair.getPrivate()); pemWriter.close();

问题 I want load the PEM using .net framework (not .netcore) -----BEGIN ENCRYPTED PRIVATE KEY----- MIHs........................................................CAAw DAYI........................................................gZAf Y/Iu........................................................X7DZ ZKoE........................................................OYQQ 3ZST........................................................A2E= -----END ENCRYPTED PRIVATE KEY----- I tried to use the following code using

问题 I newly replaced spongyCastle by bouncyCastle in an Android project: implementation "org.bouncycastle:bcpkix-jdk15on:$project.bouncyCastleVersion" Since then on Jenkins (our CI) it seems that there are tests being executed from this lib, could this be true? I never saw external libs with units tests executing automatically. The issue is now I see many failed tests, for example: org.bouncycastle.pqc.crypto.qtesla.QTeslaKeyEncodingTests.testDecodeEncodePrivateKeyQT3P 27 ms 1 org.bouncycastle

问题 I have an object of System.Security.Cryptography.X509Certificates.X509Certificate2. I want to construct an instance of Pkcs12Store (Org.BouncyCastle.Pkcs) using this object. I tried: Approach 1: public Pkcs12Store GetPkcs12Store(X509Certificate2 cert, string password) { byte[] rawdata = cert.RawData; MemoryStream memStream = new MemoryStream(rawdata); Pkcs12Store pk12; pk12 = new Pkcs12Store(memStream, password.ToCharArray()); return pk12; } In this approach, I am getting the exception:

问题 Is there an implementation of CTR (counter) mode of operation in the Java / C# Bouncy Castle lightweight API? 回答1: Yes, you can use org.bouncycastle.crypto.modes.SICBlockCipher . The documentation of that class reads: Implements the Segmented Integer Counter (SIC) mode on top of a simple block cipher. This mode is also known as CTR mode. Note that the SICBlockCipher class does not seem to implement buffering of large key streams. It does also not provide functionality to encryption / decrypt

问题 Is there an implementation of CTR (counter) mode of operation in the Java / C# Bouncy Castle lightweight API? 回答1: Yes, you can use org.bouncycastle.crypto.modes.SICBlockCipher . The documentation of that class reads: Implements the Segmented Integer Counter (SIC) mode on top of a simple block cipher. This mode is also known as CTR mode. Note that the SICBlockCipher class does not seem to implement buffering of large key streams. It does also not provide functionality to encryption / decrypt

问题 I have the following method that creates an Encrypted Private Key using Bouncy Castle for C#: public string GetPrivateKey(AsymmetricCipherKeyPair keyPair, string password) { var generator = new Pkcs8Generator(keyPair.Private, Pkcs8Generator.PbeSha1_3DES); generator.IterationCount = 4; generator.Password = password.ToCharArray(); var pem = generator.Generate(); TextWriter textWriter = new StringWriter(); PemWriter pemWriter = new PemWriter(textWriter); pemWriter.WriteObject(pem); pemWriter

问题 I have the following method that creates an Encrypted Private Key using Bouncy Castle for C#: public string GetPrivateKey(AsymmetricCipherKeyPair keyPair, string password) { var generator = new Pkcs8Generator(keyPair.Private, Pkcs8Generator.PbeSha1_3DES); generator.IterationCount = 4; generator.Password = password.ToCharArray(); var pem = generator.Generate(); TextWriter textWriter = new StringWriter(); PemWriter pemWriter = new PemWriter(textWriter); pemWriter.WriteObject(pem); pemWriter