public-key

How to Calculate Fingerprint From SSH RSA Public Key in Java?

由 不问归期 提交于 2019-12-07 14:11:55
问题 As title, How to Calculate Fingerprint From SSH RSA Public Key in Java? I got an rsaPublicKey object from sample.pub and I calculated the fingerprint by using library Apache Commons Codec DigestUtils.sha256Hex(rsaPublicKey.getEncoded()); But I got a different fingerprint when using ssh-keygen command ssh-keygen -E sha256 -lf sample.pub sample.pub as below ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAsuVPKUpLYSCNVIHD+e6u81IUznkDoiOvn/t56DRcutRc4OrNsZZ+Lmq49T4JCxUSmaT8PeLGS/IC946CNQzFwMh+

how can i convert pem public key to rsa public key with bouncycastle in c#?

由 倾然丶 夕夏残阳落幕 提交于 2019-12-07 09:44:24
问题 i have a pem public key and i want to convert to xml format public key or AsymmetricKeyParameter. i can convert pem Private key to Public/Private xml format or asymmetricKeyParameter with PemReader in bouncyCastle in C#.but when use Pem Public Key in PemReader , i receive error. please help me. what else solution for my problem? 回答1: This should do what you were looking for using BouncyCastle. Dependencies: using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Parameters; using Org

SecKeyGetBlockSize or SecKeyRawVerify for Public Key throw EXC_BAD_ACCESS code=2

由 眉间皱痕 提交于 2019-12-07 05:06:19
问题 Upon trying to implement Security.Framework SecKeyRawVerify iOS function from Apple's example, programm halts with bad pointer error (EXC_BAD_ACCESS code=2). Any help or suggestions would be appreciated. Here is my code: - (BOOL)verifySignature:(NSData *)plainText signature:(NSData *)sig { size_t signedHashBytesSize = 0; OSStatus sanityCheck = noErr; SecKeyRef publicKeyA = NULL; NSMutableDictionary * queryPublicKeyA = [[NSMutableDictionary alloc] init]; NSData * publicTag = [NSData

Deriving an ECDSA uncompressed public key from a compressed one

由 橙三吉。 提交于 2019-12-06 22:32:38
问题 I am currently trying to derive a Bitcoin uncompressed ECDSA public key from a compressed one. According to this link on the Bitcoin wiki, it is possible to do so... But how? To give you more details: as of now I have compressed keys (33-bytes-long) gathered on the bitcoin network. They are of the following format: <1-byte-long prefix><32-bytes-long X>. From there, I would like to obtain an uncompressed key (65-bytes-long) whose format is: <1-byte-long prefix><32-bytes-long X><32-bytes-long Y

Private and public key separately

由 折月煮酒 提交于 2019-12-06 17:03:37
οκ!I want to establish a client server communication oves SSL/TLS in java. The server is multithreaded. With openssl I acted as my own CA (created private key and self-signed certificate for the authority). Now I want to create keys and certs for my server and clients which are signed from the CA I created. 1)Do I have to create certs and keys from the prompt for every single client? Or is it another "automated" way eg with a script? 2) I have seen that this code for setting up keystores private void setupClientKeyStore() throws GeneralSecurityException, IOException { clientKeyStore = KeyStore

What is the structure of the public key of a signed assembly in C#?

由 你说的曾经没有我的故事 提交于 2019-12-06 13:51:48
问题 Using this code to retrieve the public key bytes... var pubKey = AppDomain.CurrentDomain.DomainManager.EntryAssembly .GetName().GetPublicKey(); What is this common structure at the start (first 32 bytes) of the key? It's not ASN.1 and it might not be variable. I can google it and get repeats. // 00 24 00 00 04 80 00 00 94 00 00 00 06 02 00 00 00 24 00 00 52 53 41 31 Is it all reversed or just part of it (e.g. the modulus at the end)? 52 53 41 31 is a string of RSA1 . My key's modulus is 1024

Load public key to create rsa object for public encryption

由 纵饮孤独 提交于 2019-12-06 10:29:38
问题 I am trying to load a rsa object from a generated public key. I used PEM_write_bio_RSAPublicKey to generate the public key string. Then I used PEM_read_bio_RSA_PUBKEY to load the rsa object from the public key string. The problem is the rsa object is null. The generated string looks okay as far as I can tell. Any ideas? -----BEGIN RSA PUBLIC KEY----- MIIBCgKCAQEAxIReUspesPy6a4CPBjt/4Jt+H13q9MekMiutzNKdNO1uuwqcdqDX pKPeTKXyUH6oCyRdUxkk6IVXGlBlxtW7OsxaYWhpfl9z3CCERCEpFmzN++dvlK2v mckFL66e9q6Y

Public key authentication issues on cygwin

由 梦想与她 提交于 2019-12-05 20:34:21
问题 I've been trying "ssh localhost" on cygwin (I use WIndows 7), but it keeps asking for the password. When I did "ssh -vvv localhost", I found out that the public key authentications were not happening (or failing). Hence, it was asking for the password. debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred publickey,keyboard-interactive,password debug3: authmethod

WinSCP commandline: Hostkey not found in cache error

由 旧街凉风 提交于 2019-12-05 18:43:35
I am trying to connect to Unix server from WinSCP commandline for the first time. It closes with the the following error: The server's host key was not found in the cache. You have no guarantee that the server is the computer you think it is. The server's rsa2 key fingerprint is: ssh-rsa 1024 42:9e:c7:f4:7f:8b:50:10:6a:06:04:b1:d4:f2:04:6d If you trust this host, press Yes . To connect without adding host key to the cac he, press No. To abandon the connection press Cancel . In the WinSCP commandline, it does not ask for any input (Yes or No). It closes with Authentication failed . If I connect

how can i convert pem public key to rsa public key with bouncycastle in c#?

由 醉酒当歌 提交于 2019-12-05 17:28:57
i have a pem public key and i want to convert to xml format public key or AsymmetricKeyParameter. i can convert pem Private key to Public/Private xml format or asymmetricKeyParameter with PemReader in bouncyCastle in C#.but when use Pem Public Key in PemReader , i receive error. please help me. what else solution for my problem? This should do what you were looking for using BouncyCastle. Dependencies: using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Parameters; using Org.BouncyCastle.OpenSsl; using Org.BouncyCastle.Security; The code to convert from PEM to RSA XML format:
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