Downloading from a public server: SSL certificate problem: unable to get local issuer certificate

I want to download a file (https://discovery.ucl.ac.uk/1575442/1/Palmisanoetal.zip) from a public server via the R command temp <- tempfile() utils::download.file(db_url, temp, method = ‘curl’) This does not work on my Ubuntu 18.04.3 LTS (Bionic Beaver) system. I get the following error: curl: (60) SSL certificate problem: unable to get local issuer certificate More details here: https://curl.haxx.se/docs/sslcerts.html…

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How to rotate Perspective Camera in 3D Libgdx

I’m creating 3d game with libgdx but I have problem, I want to rotate the camera on touch the screen , so I added this from libgdx wiki @Override public boolean touchDragged (int screenX, int screenY, int pointer) { float deltaX = -Gdx.input.getDeltaX() * degreesPerPixel; float deltaY = -Gdx.input.getDeltaY() * degreesPerPixel; camera.rotate(Vector3.Y,deltaX*0.9f); camera.rotate(Vector3.X,360-deltaY*0.9f); camera.update(); return…

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Python : Create ECC Keys from private and public key represented in raw bytes

I have following ECC private and public key pairs: Private key : 0x63bd3b01c5ce749d87f5f7481232a93540acdb0f7b5c014ecd9cd32b041d6f33 Public Key : 0x04017655e42a892cc71bccedcb1cd421d03530e1d7edb52cef143c5562c4c6f0129fa5a37738013e64a1ff0e6cb7068815a13000eb162cb7a0214dfcf3c8fa101c Curve : SECP256R1 I want to load these keys in Python to perform signing operations. Can you please suggest possible steps? (I am comfortable to use “openssl ec” tools if necessary.)

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Toggel Accordion element

I have added an accordion-element by WPBakery. Depending on an userinput, I wish to open diffenent parts of the accordion-element per PHP-script. The sourcecode changes from <div class=”vc_tta-panel” id=”GenBetrieb_FAQ_05″ data-vc-content=”.vc_tta-panel-body”> to div class=”vc_tta-panel vc_active” id=”GenBetrieb_FAQ_05″ data-vc-content=”.vc_tta-panel-body”> when an user clicks on one of the topics of an accordion-element. But how can I realise this by…

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