CRYPTO (4) | Special files and drivers | Unix Manual Pages | :man▋
crypto, cryptodev - hardware crypto access driver
.Cd device crypto
.Cd device cryptodev
The crypto driver provides a device-independent framework to support cryptographic operations in the kernel. The cryptodev driver provides userland applications access to this support through the /dev/crypto device. This node primarily operates in an ioctl(2) based model, permitting a variety of applications to query device capabilities, submit transactions, and get results.
If count given in the specification, and is greater than 0, a maximum of one crypto device is created.
The following ioctl(2) calls apply only to the crypto devices:
| CIOCGSESSION || Setup a new crypto session for a new type of operation. |
| CIOCFSESSION || Free a previously established session. |
| CIOCCRYPT || Perform a crypto operation against a previously setup session. |
Depending on hardware being present, the following symmetric and asymmetric cryptographic features are potentially available from /dev/crypto:
| CRYPTO_DES_CBC |
| || |
| /dev/crypto || crypto access device |
hifn(4), safe(4), ubsec(4), crypto(9)
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