# EVM_AUTH_OP · FT4 Rell API · Chromia Docs (concept)

> val EVM_ AUTH_ OP: text = "ft4.evm_ auth" name of the operation used to authorize through EVM signatures

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.auth/-e-v-m_-a-u-t-h_-o-p/

PROPERTY

# EVM\_AUTH\_OP

```signature
val EVM_AUTH_OP: text = "ft4.evm_auth"
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/auth/authentication.rell#lines-26)

name of the operation used to authorize through EVM signatures

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.core.auth/-e-v-m_-a-u-t-h_-o-p.html)Generated API reference, mirrored from the live docs