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Download from https://keepassxc.org/download/ the birnary, signature and hash files. KeePassXC-2.6.6-x86_64.dmg KeePassXC-2.6.6-x86_64.dmg.sig Value from KeePassXC-2.6.6-x86_64.dmg.DIGEST ab96033c16459de5a95e1f9e5864a5bd8cc47b4f3dee2c68ede6199dd44286ec  KeePassXC-2.6.6-x86_64.dmg At the terminal: $ openssl dgst -sha256 KeePassXC-2.6.6-x86_64.dmg SHA256(KeePassXC-2.6.6-x86_64.dmg)= ab96033c16459de5a95e1f9e5864a5bd8cc47b4f3dee2c68ede6199dd44286ec Use the search function in any text editor to seach and compare the hash value before install. $ gpg --verify KeePassXC-2.6.6-x86_64.dmg.sig gpg: assuming signed data in 'KeePassXC-2.6.6-x86_64.dmg' gpg: Signature made Sat Jun 12 10:52:46 2021 PDT gpg:                using RSA key C1E4CBA3AD78D3AFD894F9E0B7A66F03B59076A8 gpg: Can't check signature: No public key $ gpg --keyserver pgp.mit.edu --recv C1E4CBA3AD78D3AFD894F9E0B7A66F03B59076A8 gpg: key CFB4C2166397D0D2: 1 duplicate signature removed gpg: key CFB4C2166397D0D2: public key

On this page https://www.libreoffice.org/download/download/, click info https://download.documentfoundation.org/libreoffice/stable/7.2.1/mac/x86_64/LibreOffice_7.2.1_MacOS_x86-64.dmg.mirrorlist Mirrors for LibreOffice_7.2.1_MacOS_x86-64.dmg File information Filename: LibreOffice_7.2.1_MacOS_x86-64.dmg Path: /libreoffice/stable/7.2.1/mac/x86_64/LibreOffice_7.2.1_MacOS_x86-64.dmg Size: 267M (279867887 bytes) Last modified: Fri, 10 Sep 2021 09:43:36 GMT (Unix time: 1631267016) SHA-256 Hash: b83e841360fa6ee9e42bfc1579ce9ae135972d6e7a01e79d1b975c2b855ff152 SHA-1 Hash: ad46a513f7c2047f632d8a3929a23b74aaebcc3d MD5 Hash: 741cd9f35e133d0b2cc1944dc362cb0f BitTorrent Information Hash: bcb717c49259229b9108c0967679dc2f53c9aba9 PGP signature available At the terminal: $ openssl dgst -sha256 LibreOffice_7.2.1_MacOS_x86-64.dmg SHA256(LibreOffice_7.2.1_MacOS_x86-64.dmg)= b83e841360fa6ee9e42bfc1579ce9ae135972d6e7a01e79d1b975c2b855ff152 Search and compare the hash sum for matching before install