# Suma de verificación (checksum) ## Descripción Las sumas de verificación (checksums) se utilizan para probar la integridad de los datos transmitidos. Si las sumas de verificación calculadas por parte del remitente son las mismas que las calculadas después de la transmisión de datos, significa que los datos transmitidos están intactos. ## Linux/Unix ```shell # MD5 md5sum # SHA-1 sha1sum # SHA-256 sha256sum # SHA-512 sha512sum ``` Verificación de integridad de archivos. ```shell echo test1 > test1.txt echo test2 > test2.txt echo test3 > test3.txt md5sum test1.txt test2.txt test3.txt > tests.txt cat tests.txt md5sum -c tests.txt ``` Búsqueda de archivo dado una suma de verificación (checksum). ```shell find / -type f -exec md5sum {} + | tee /tmp/temp.txt | grep ``` ## Windows ```shell # certutil ## MD5 certutil.exe -hashfile MD5 ## SHA-1 certutil.exe -hashfile ## SHA-256 certutil.exe -hashfile SHA256 ## SHA-512 certutil.exe -hashfile SHA512 # PowerShell ## MD5 Get-FileHash -Algorithm MD5 | Format-List ## SHA-1 Get-FileHash -Algorithm SHA1 | Format-List ## SHA-256 Get-FileHash | Format-List ## SHA-512 Get-FileHash -Algorithm SHA512 | Format-List ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cryptography.mrw0l05zyn.cl/hashing/suma-de-verificacion-checksum.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.