# gmssl

> GmSSL is a crypto toolkit supporting SM1, SM2, SM3, SM4, SM9, and ZUC/ZUC256.
> More information: <http://gmssl.org/english.html>.

- Generate an SM3 hash for a file:

`gmssl sm3 {{path/to/file}}`

- Encrypt a file using the SM4 cipher:

`gmssl sms4 -e -in {{path/to/file}} -out {{path/to/file.sms4}}`

- Decrypt a file using the SM4 cipher:

`gmssl sms4 -d -in {{path/to/file.sms4}}`

- Generate an SM2 private key:

`gmssl sm2 -genkey -out {{path/to/file.pem}}`

- Generate an SM2 public key from an existing private key:

`gmssl sm2 -pubout -in {{path/to/file.pem}} -out {{path/to/file.pem.pub}}`

- Encrypt a file using the ZUC cipher:

`gmssl zuc -e -in {{path/to/file}} -out {{path/to/file.zuc}}`

- Decrypt a file using the ZUC cipher:

`gmssl zuc -d -in {{path/to/file.zuc}}`

- Display version:

`gmssl version`