terraform/website/docs/configuration/functions/base64sha256.html.md

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functions base64sha256 function docs-funcs-crypto-base64sha256 The base64sha256 function computes the SHA256 hash of a given string and encodes it with Base64.

base64sha256 Function

base64sha256 computes the SHA256 hash of a given string and encodes it with Base64. This is not equivalent to base64encode(sha256512("test")) since sha512() returns hexadecimal representation.

The given string is first encoded as UTF-8 and then the SHA256 algorithm is applied as defined in RFC 4634. The raw hash is then encoded with Base64 before returning. Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.

Examples

> base64sha256("hello world")
uU0nuZNNPgilLlLX2n2r+sSE7+N6U4DukIj3rOLvzek=
  • sha256 calculates the same hash but returns the result in a more-verbose hexadecimal encoding.