The Blink command ssh-copy-id command can be used to copy the public key to a remote host. Please refer to this great article on SSH Certificates. Blink can import a certificate but it cannot deal with creating a Certificate Authority and signing itself. The way SSH Certificates work is not much different than the way familiar certificates and chains of trust on the web work. SSH CertificatesĪs an additional measure of security and control, specially in teams, Blink Shell supports adding SSH Certificates to your public key. Keys can only be used to perform signatures by the Blink app. While Blink is able to generate and store keys securely, SE Keys are generated by the Secure Enclave itself, and they cannot be extracted or read by any app or person, what prevents stealing. PRO TIP: What is the difference between Generate New and Generate SE Key? Secure Enclave keys or SE Keys are a special type of key with extra security properties, similar to Hardware based keys. Hence, we have deemed the extra passphrase redundant. ![]() If you want extra security, you can also protect the whole Blink app through FaceID. We think passphrases made sense when the contents of your computer could be easily read by any other apps, but that's not the case anymore. Blink stores your private key on the iOS Keychain, and its contents are encrypted by the Secure Enclave itself. You may have noticed we do not provide the option for a passphrase anymore. For RSA keys, a 2048 bit key is probably large enough, but you can even choose a 4096 bit key for extra security if you desire. If your server supports it, you can create an ECDSA or Ed25519 key. Nowadays other types of keys based on other mathematical problems like elliptic curves are becoming a trend. As a suggestion, if you are going to generate a specific key pair for access to a specific server, we would recommend naming the key the hostname of that server so that's easy to remember in the future.īy default, Blink Shell suggests RSA keys which have been the standard for years. Give your key a descriptive name of your choosing. Go ahead with Generate New and the New Key dialog as shown below: To create a key, click the + icon at the top and you will be presented with an Add Key Drop-Down. You can have multiple SSH keys to connect to multiple SSH servers. The default keys are always named id_xxxx like id_ecdsa or id_ed25519, and these will be the keys used first to authenticate. ![]() To get started, run the config command in Blink Shell to access the configuration pane.Ĭlick on the Keys button to enter the SSH keys menu. In this article we will discuss generating a key pair. Using SSH Keys in Blinkīefore you can use SSH keys you must generate or import a key pair. Additionally, SSH keys are more convenient as you don’t have to type your password in each time you want to connect to a remote server. For example, using standard computing power it may take over a million years to crack an SSH key, but a standard password will take far less time to compromise. Using SSH keys is more secure than passwords as they are more difficult to crack compared to typical passwords. The public key is not a secret but the private key should never be shared with anyone nor uploaded to any untrusted location. The public key is what resides on the remote server and the private key is stored on your local device. A SSH key consists of two parts: a public and a private key. SSH Keys are small text files meant to be exchanged in lieu of passwords for verifying access to a remote server. SSH Keys Using SSH Keys with Blink Shell for iOS SSH Keys
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