On 6/8/2024 5:12 AM, Neil Horman wrote: > printf '%s' "hello" | LD_LIBRARY_PATH=$PWD ./apps/openssl dgst -sha1 > -hmac $(cat key.txt) > SHA1(stdin)= c3b424548c3dbd02161a9541d89287e689f076d7 That will expose the key in the process args, so is NOT secure. -- Carson