[android-components](../../index.md) / [mozilla.components.support.ktx.kotlin](../index.md) / [kotlin.String](index.md) / [sha1](./sha1.md)

# sha1

`fun `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`.sha1(): `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/support/ktx/src/main/java/mozilla/components/support/ktx/kotlin/String.kt#L80)

Calculates a SHA1 hash for this string.

