public-key

Embedding public key as string in Paramiko Application

那年仲夏 提交于 2020-01-13 10:19:11
问题 I'm trying to create a single file executable in python and using paramiko for my SSH. I need to eliminate external files such as public key files and try to go for embedded strings. I tried this solution but it's not working for me.. How do I accomplish this? Thanks. 回答1: The solution you mentioned: key = paramiko.RSAKey(data=base64.b64decode('AAblablabla...')) works fine however it may be inconvenient to store the key in base64 format. The following code shows how to use the key stored in

PublicKey from PEM file on android, java

萝らか妹 提交于 2020-01-13 06:42:15
问题 Basically I'm trying to verify signature which using openssl looks like this: openssl dgst -sha256 -verify prime192v1-pub-v1.pem -signature signatureFile.bin < dataFile.bin ... and in order to do that on android I need to create PublicKey object. The method that I'm using throws java.security.spec.InvalidKeySpecException: Unexpected key type at line kf.generatePublic(new X509EncodedKeySpec(encoded)) . import org.spongycastle.util.encoders.Base64; import java.io.IOException; import java

Best practice for using ssh key pair with different groups?

早过忘川 提交于 2020-01-13 03:24:11
问题 I'm doing some work with a company outside of my school, and they need my public ssh key. I already have my public ssh key generated for use with github. I set this up some time ago, and if I open the id_rsa.pub file, I see it has my school email address embedded inside. Now I'm wondering if it's typical to reuse this one key with every company you work with, or do you generate a new one for every company. I guess I have a few considerations: If I use the same public key with each company,

How to prevent a man-in-the-middle attack in case of a compromised server?

混江龙づ霸主 提交于 2020-01-11 09:45:09
问题 Imagine that a server is serving public keys of the users to their partners to make encrypted communication possible. However, the server does NOT have access to the private keys.. Anyway - imagine the server is hacked and it sends not the requested public keys: Alice requests Bob's public key Server sends Eve's public key Bob requests Alice's public key Server sends Eve's public key Alice sends a message to Bob Server unpacks message, reads it and repacks it -> sends to Bob... Bob sends a

Using scp to copy a file to Amazon EC2 instance?

[亡魂溺海] 提交于 2020-01-10 06:13:12
问题 I am trying to use my Mac Terminal to scp a file from Downloads (phpMyAdmin I downloaded online) to my Amazon EC2 instance. The command I used was: scp -i myAmazonKey.pem phpMyAdmin-3.4.5-all-languages.tar.gz hk22@mec2-50-17-16-67.compute-1.amazonaws.com:~/. The error I got: Warning: Identity file myAmazonKey.pem not accessible: No such file or directory. Permission denied (publickey). lost connection Both my myAmazonkey.pem and phpMyAdmin-3.4.5-all-languages.tar.gz are in Downloads, so then

How to generate PublicKey for PrivateKey in X25519?

匆匆过客 提交于 2020-01-05 06:27:16
问题 I'm working with X25519-keys based encryption at the moment. My question is, basically, how to derive PublicKey from existing X25519 PrivateKey ? I have found the code in the XDHKeyPairGenerator : BigInteger publicKey = ops.computePublic(privateKey.clone()); But this package is platform-specific, thus not accessible. And I can't find a method to do it through publicly-accessible interfaces. 回答1: You must scalar multiply the private key (which is just a big number) by the 25519 curve generator

How to get public key using PyOpenSSL?

给你一囗甜甜゛ 提交于 2020-01-03 10:47:11
问题 I'm tring to create python script, that would take PKCS#12 package and print some information contained in x509 certificate and using for this purpouses PyOpenSSL module. So far i want to fetch from certificate public key. But PKey object doesn't have appropriate method. Where can I move out of here ? Any ideas how to get public key ? pfx=open('./1.p12','rb').read() PKCS=crypto.load_pkcs12(pfx) cert=PKCS.get_certificate() PKey=cert.get_pubkey() print PKey <OpenSSL.crypto.PKey object at

Get public Key from imported certificate in Keystore with Java

寵の児 提交于 2020-01-01 17:16:05
问题 I have created and downloaded a certificate from sales force, as per the instructions in PicketLink document. I downloaded the certificate and its name is mysample.crt and I imported the certificate into a keysotre. keytool -import -file mysample.crt -keystore keystore.jks -alias salesforce-idp To check, I exported the public key also keytool -export -alias salesforce-idp -keystore keystore.jks -rfc -file public.cert I have a Java code to get the Public Key, but it is not working. This is my

What does PackageInfo.signatures return?

只愿长相守 提交于 2020-01-01 16:11:11
问题 Why there are multiple signatures in this value? Are these values the public key of the package? Can I uniquely identify a package using this signature instead of reading the files under META-INF, or calculating an MD5 on the whole APK file? 回答1: According to @hackbod, this is all the public keys the APK was signed with Despite its name, the contents of PackageInfo.signatures is the public keys your app is signed with. This absolutely, positively does not change between builds. This is the

How does a public key verify a signature?

陌路散爱 提交于 2019-12-29 10:04:57
问题 I am trying to get a better grapple on how public/private keys work. I understand that a sender may add a digital signature to a document using his/her private key to essentially obtain a hash of the document, but what I do not understand is how the public key can be used to verify that signature. My understanding was that public keys encrypt, private keys decrypt... can anyone help me understand? 回答1: Your understanding of "public keys encrypt, private keys decrypt" is correct... for data