| // These hashes are for algorithmic use cases, such as bucketing in hashtables, where security isn't | |
| // needed and 32 or 64 bits is enough (that is, rare collisions are acceptable). These are way simpler | |
| // than sha1 (and all its deps) or similar, and with a short, clean (base 36 alphanumeric) result. | |
| // A simple, *insecure* 32-bit hash that's short, fast, and has no dependencies. | |
| // Output is always 7 characters. | |
| // Loosely based on the Java version; see | |
| // https://stackoverflow.com/questions/6122571/simple-non-secure-hash-function-for-javascript | |
| const simpleHash = str => { | |
| let hash = 0; |
Este desafio era sobre a utilização de um buffer overflow para sobrepor o valor de uma variável inteira. O código fonte da página era o seguinte:
Caso o atacante conseguisse sobrepor o valor da variável inteira que era iniciado com zero a flag seria revelada.
The following steps might help anyone who are new to git rebase and wanted to do it without hassle
Step 1: Assuming that there are no commits and changes to be made on YourBranch at this point. We are visiting YourBranch.
git checkout YourBranch git pull --rebase
What happened? Pulls all changes made by other developers working on your branch and rebases your changes on top of it.
Step 2: Resolve any conflicts that presents.
# Delete all containers
docker rm $(docker ps -aq)
# Delete all images
docker rmi $(docker images -q)
# Delete all untagged images
docker rmi $(docker images -q --filter "dangling=true")
# System Prune
# WARNING! This will remove:
| #!/bin/sh | |
| versionMaj="1" | |
| versionMin="0" | |
| versionRev="1" | |
| version="$versionMaj.$versionMin-$versionRev" | |
| echo "Removing old Postman tarballs" | |
| rm -f $(ls Postman*.tar.gz) |