kennwhite
/ multi_key_crypto.sh
Last active
January 16, 2024 15:47
OpenSSL command line recipe for multi-public key file encryption. Any single private key paired to one of the public keys can decrypt the file.
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| #!/usr/bin/env bash | |
| # | |
| # Example of multiple key AES encryption for text files using the openssl v. 0.9.8+ command line utility | |
| # Uses n public certs as key for MIME PKCS envelope, any individual private key can decrypt. | |
| # | |
| # If standard RSA ssh keys exist, these can be converted to public certs as well (and ssh keys can decrypt) | |
| # | |
| # To sign (and verify) the encrypted file, one of the private keys is required, see: | |
| # http://www.openssl.org/docs/apps/smime.html#EXAMPLES for openssl smime examples | |
| # or http://www.openssl.org/docs/apps/cms.html#EXAMPLES for cms utility (OpenSSL v. 1.0+) |