# keypair · Rell standard library · Chromia Docs (concept)

> A keypair for testing only. Not secure - unsuitable for production usage. Since 0.10.4 struct keypair {
 pub: byte_array ;
 priv: byte_array ;
} pub: byte_

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/rell.test/keypair/

STRUCT

# keypair

A keypair for testing only.

**Not secure - unsuitable for production usage.**

Since 0.10.4

```signature
struct keypair {
 pub: byte_array;
 priv: byte_array;
}
```

`pub: byte_array;`
:   The public key of this test keypair.

    **Not secure - unsuitable for production usage.**

`priv: byte_array;`
:   The private key of this test keypair.

    **Not secure - unsuitable for production usage.**

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/rell.test/keypair/index.html)Generated API reference, mirrored from the live docs