Just pondered... there might be everything already be installed in a typical linux system, "split" does the right thing and can pipe into a command. Probably no

Just pondered... there might be everything already be installed in a typical linux system, "split" does the right thing and can pipe into a command. Probably not the most efficient (making several copies of the data), but certainly enough for a proof-of-concept. $ dd if=/dev/urandom bs=1M | \ split -b5000000 -d -a4 --verbose \ --filter="gpg -e -r 0x6AC3E4EC >\$FILE" \ - recording_ executing with FILE=recording_0000 executing with FILE=recording_0001 executing with FILE=recording_0002 (...) • -b500000 split at 50 megabyte input file size. • -d decimal suffixes (0001, ... else aa..az..zz) • -a4 : suffixes of length 4 (0000) • --filter="" : filter through pgp, intended output file is in variable $FILE • - : read stdin • recording_ : prefix output files with this string $ file *recor* recording_0000: PGP RSA encrypted session key - keyid: 8F74FAFF 29C8C7C2 RSA (Encrypt or Sign) 2048b . recording_0001: PGP RSA encrypted session key - keyid: 8F74FAFF 29C8C7C2 RSA (Encrypt or Sign) 2048b . recording_0002: PGP RSA encrypted session key - keyid: 8F74FAFF 29C8C7C2 RSA (Encrypt or Sign) 2048b . (....)