Error “The authenticity of host ‘github.com’ can’t be established. RSA key fingerprint “

You should simply be able to answer ‘yes‘, which will update your ~/.ssh/known_hosts file. A better approach, to avoid any MITM (Man-In-The-Middle) attack, would be (as commented below by Mamsds) to verify GitHub’s public key first (see “GitHub’s SSH key fingerprints”) and, if you find a match, then you can answer ‘yes’. Example: ssh-keyscan -t … Read more

Image fingerprint to compare similarity of many images

Normal hashing or CRC calculation algorithms do not work well with image data. The dimensional nature of the information must be taken into account. If you need extremely robust fingerprinting, such that affine transformations (scaling, rotation, translation, flipping) are accounted for, you can use a Radon transformation on the image source to produce a normative … Read more

How can I get the MD5 fingerprint from Java’s keytool, not only SHA-1?

With JDK 1.7 installed, keytool always outputs by default SHA1 fingerprint, not MD5. you can get the MD5 Certificate by adding -v option. use the following code:- C:\Program Files\Java\jdk1.7.0\bin>keytool -v -list -alias androiddebugkey -keystore debug.keystore -storepass android -keypass android it will output MD5 certificate as well.

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