1. Question When installing software, the ubuntu 22.04 system prompts: Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. After this operation, 19.4 MB of additional disk space will be used. Ign:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy/main amd64 flex amd64 2.6.4-8build2 Ign:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu […]
Tag: trusted
Generate trusted https certificate -use
Configuration to generate CA certificate General diagram: (1), create CA certificate through openssl Step 1:Create a secret key, which is the basis of the CA certificate, and everything after that All come from this secret key # Generate a 2048-bit key through the rsa algorithm openssl genrsa -out myCA.key 2048 The second step: is to […]
[Transfer] ARM Trusted Firmware analysis – TBBR, TBB, FIP-TBB
Reposted from: https://www.cnblogs.com/arnoldlu/p/14301334.html Previously, we followed the previous articles and learned about ATF startup, image generation and verification, and firmware upgrade. Here is a look at the startup requirements. ARM TBBR defines the basic requirements of the security system, and COT is implemented in ATF, including FIP generation, cryptographic library call, image signature encryption/decryption verification […]
53 Best Practices – Security Best Practices – Virtual Machine Trusted Boot
Article directory 53 Best Practices – Security Best Practices – Virtual Machine Trusted Boot 53.1 Overview 53.2 Configure the vTPM device and enable measurement startup 53.2.1 Install swtpm and libtpms software 53.2.2 Configuring a vTPM Device for a Virtual Machine 53.2.3 Confirm that the measurement startup is enabled successfully 53 Best Practices – Security Best […]
(6) CSharp-Liu Tiemang Edition-Entrusted
1. Delegation concept 1. A delegate is an “upgraded version” of a function pointer Example: function pointer in C/C++ (delegate is equivalent to function pointer) Everything is an address A variable (data) is a value stored in a section of memory starting at an address A function (algorithm) is a set of machine language instructions […]
Ubuntu 22.04 LTS apt-get update reports Key is stored in legacy trusted.gpg keyring warning solution
Background introduction Update the source under Ubuntu 22.04 LTS apt-get update encountered Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details. such warnings. Although the warning does not affect the execution, it is still uncomfortable for a patient with severe code obsessive-compulsive disorder and code cleanliness, so let’s […]
Several entrusted writing methods of unity
【Unity】Delegate, Event, UnityEvent, Action, UnityAction, Func stupidly confused Delegate delegate, function pointer A simple example: one-to-one dependencies A simple example: one-to-many dependencies So… what’s the use of entrusting? Event Event, special delegate UnityEvent Action, a delegate UnityAction, a delegate Func, Action with return value Use anonymous functions/Lambdas to listen to callback functions I learned to […]
[Solved] Solve ubuntu Certificate verification failed: The certificate is NOT trusted.
There is a certificate problem when using Tsinghua’s mirror resources when using the apt-get command on ubuntu18.04 The workaround is as follows: Modify the mirror resource website to http sudo vim /etc/apt/sources.list # The source image is annotated by default to improve the speed of apt update, you can uncomment it yourself if necessary deb […]
[Solved] IIS – deploying https service reports the certificate chain: UntrustedRoot error
1. Description of the problem The error message is as follows: System.InvalidOperationException: IDX20803: Unable to obtain configuration from: ‘System.String’.\r\\ —> System.IO.IOException: IDX20804: Unable to retrieve document from: ‘System .String’. —> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. —> System.Security.Authentication.AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: […]
[Solved] ESP32-C3 Getting Started Tutorial Questions?–esp-tls: create_ssl_handle failed, tls_io_instance->options.trusted_certs null
Article table of contents I. Introduction Second, find the problem 3. Solve the problem 1. Preface This article is based on VS Code IDE for programming, compiling, downloading, running and other operations For the basic introductory chapter, please refer to: ESP32-C3 Introductory Tutorial Basics ① – Building Hello World Based on VS Code For the […]