encryption-asymmetric

问题 Code https://play.golang.org/p/CUEqjsJq5c Error: panic: crypto/rsa: message too long for RSA public key size goroutine 1 [running]: panic(0x4a6d80, 0xc420010420) /usr/local/go/src/runtime/panic.go:500 +0x1a1 main.main() /tmp/sample.go:28 +0xfa File size 811 byte (for test encrypt self source file). I want encrypt some bigger files, 1..500 mb. Can I do it with RSA or need use some other methods? 回答1: RSA can only encrypt data smaller than (or equal to) the key length. The answer is to encrypt

问题 Code https://play.golang.org/p/CUEqjsJq5c Error: panic: crypto/rsa: message too long for RSA public key size goroutine 1 [running]: panic(0x4a6d80, 0xc420010420) /usr/local/go/src/runtime/panic.go:500 +0x1a1 main.main() /tmp/sample.go:28 +0xfa File size 811 byte (for test encrypt self source file). I want encrypt some bigger files, 1..500 mb. Can I do it with RSA or need use some other methods? 回答1: RSA can only encrypt data smaller than (or equal to) the key length. The answer is to encrypt

问题 I have searched all this morning but I've found websites where it is said that data is sent through an asymmetric encryption using the TLS protocol Then I found the contrary Please can you tell me which is true? Thanks And does anyone know a guide where it is explained step by step the handshake of tls protocol over https? 回答1: The best answer is that it does both. TLS uses asymmetric encryption to first establish identity of one or both parties. Secondly, it uses asymmetric encryption to

问题 Is it possible to encrypt a message with a private key in python using pycryptodome or any other library? I know that you are not supposed to encrypt with the private key and decrypt with the public key, but my purpose is to encrypt with the private one so the receiver could be sure that the message was send by the real author. More than secure encryption I'm looking for some kind of obfuscation. I want to do an app where the message is public but it can only be seen if you have the public

问题 I'm trying to decode an RSA 2048 bit message encoded with a public key using the corresponding private key. The environment is google chrome and I'm using the window.crypto.subtle APIs. I generated the key couple and encoded the message using openssl tools: # generate keys and put the private one in file private_key.pem openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:2048 # extract public key in file public_key.pem openssl rsa -pubout -in private_key.pem -out

问题 I'm trying to decode an RSA 2048 bit message encoded with a public key using the corresponding private key. The environment is google chrome and I'm using the window.crypto.subtle APIs. I generated the key couple and encoded the message using openssl tools: # generate keys and put the private one in file private_key.pem openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:2048 # extract public key in file public_key.pem openssl rsa -pubout -in private_key.pem -out

问题 I am trying to implement asymmetric algorithm in Android. I have managed to do it all. But I am facing an issue while output. What I am getting after decrypting through private key is(Which contains actual text in the end): �������\�C���gz�{ܳkK��c��LB(7fz���H�8�� ��ȏ�ҍ�X ��KI��aj�B��x�D�n>�ι�& UL-1���E�;��s9�zB[�9B�t��B�A�s�GA6����y�f���J�����+. `g4�s�1��p�PW�%��7�"��fQ����G���x� �|&�ѡ�gq������:X�be�_��av��{'msg':'Laravel 7.7777777'} Actual message is : {'msg':'Laravel 7.7777777'} You can

问题 I am getting above mentioned error during a hybrid cryptography implementation. as per https://en.wikipedia.org/wiki/Hybrid_cryptosystem I am just stucked at the last step My code is private void button1_Click(object sender, EventArgs e) { try { CspParameters cspParams = new CspParameters { ProviderType = 1 }; RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(2048, cspParams); string publicKey =lblPublicKey.Text = Convert.ToBase64String(rsaProvider.ExportCspBlob(false));

问题 I am looking at the feasibility for using Chrome apps for the front end of some applications I am working on. (As an aside, if anyone has any thoughts on this - put it in the comments) I would be using chrome.socket and would want the connections to be secure so will need RSA and AES encryption that will be compatible with as many backend technology implementations as possible (C#, Java, ...). What I mean by this is the different modes, key-lengths, implementation-specific details... Now I

问题 I am creating a simple client app to experiment with Mega and I am having trouble wrapping my head around the way RSA is used. Let's take, for example, the decryption of the session ID - this is one of the first things that must be done in order to log in. The API provides me the following RSA data: p (1024 bits) q (1024 bits) d (2044 bits) u (1024 bits) To start with, I do not know what "u" stands for. I see from code that it is calculated by modinverse(p, q) - is this what is commonly