21 lines
555 B
Markdown
21 lines
555 B
Markdown
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# openssl rand
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> Generate random bytes using a cryptographically secure PRNG.
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> More information: <https://docs.openssl.org/master/man1/openssl-rand/>.
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- Generate an 8-byte (16 characters) hex string and write it to `stdout`:
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`openssl rand -hex 8`
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- Generate 20 random bytes encoded in base64:
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`openssl rand -base64 20`
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- Generate random bytes and write them to a file (without encoding):
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`openssl rand -out {{path/to/file}} {{length}}`
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- Generate 1 KiB/MiB/GiB/TiB random bytes encoded in hex/base64:
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`openssl rand -{{hex|base64}} 1{{K|M|G|T}}`
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