• Overview
    • Enforce Policy as Code
    • Infrastructure as Code
    • Inject Secrets into Terraform
    • Integrate with Existing Workflows
    • Manage Kubernetes
    • Manage Virtual Machine Images
    • Multi-Cloud Deployment
    • Network Infrastructure Automation
    • Terraform CLI
    • Terraform Cloud
    • Terraform Enterprise
  • Registry
  • Tutorials
    • About the Docs
    • Intro to Terraform
    • Configuration Language
    • Terraform CLI
    • Terraform Cloud
    • Terraform Enterprise
    • Provider Use
    • Plugin Development
    • Registry Publishing
    • Integration Program
    • Terraform Tools
    • CDK for Terraform
    • Glossary
  • Community
GitHub
Download
Try Terraform Cloud
    • v1.2.x (latest)
    • v1.1 and earlier

    Terraform Language

  • Overview
  • Attributes as Blocks - Configuration Language
  • Terraform v1.0 Compatibility Promises
    • Overview
    • Override Files
    • Dependency Lock File
    • Overview
    • Configuration Syntax
    • JSON Configuration Syntax
    • Style Conventions
    • Overview
    • Resource Blocks
    • Resource Behavior
      • depends_on
      • count
      • for_each
      • provider
      • lifecycle
      • Declaring Provisioners
      • Provisioner Connections
      • Provisioners Without a Resource
      • file
      • local-exec
      • remote-exec

      • chef
      • habitat
      • puppet
      • salt-masterless
  • Data Sources
    • count
    • depends_on
    • for_each
    • lifecycle
    • providers
    • provider
    • Overview
    • Provider Configuration
    • Provider Requirements
    • Dependency Lock File
    • Overview
    • Input Variables
    • Output Values
    • Local Values
    • Overview
    • Module Blocks
    • Module Sources
      • providers
      • depends_on
      • count
      • for_each
      • Overview
      • Standard Module Structure
      • Providers Within Modules
      • Best Practices: Module Composition
      • Publishing Modules
      • Refactoring Modules
    • Module Testing Experiment
    • Overview
    • Types and Values
    • Strings and Templates
    • References to Values
    • Operators
    • Function Calls
    • Conditional Expressions
    • For Expressions
    • Splat Expressions
    • Dynamic Blocks
    • Custom Condition Checks
    • Type Constraints
    • Version Constraints
    • Overview
      • abs
      • ceil
      • floor
      • log
      • max
      • min
      • parseint
      • pow
      • signum
      • chomp
      • format
      • formatlist
      • indent
      • join
      • lower
      • regex
      • regexall
      • replace
      • split
      • strrev
      • substr
      • title
      • trim
      • trimprefix
      • trimsuffix
      • trimspace
      • upper
      • alltrue
      • anytrue
      • chunklist
      • coalesce
      • coalescelist
      • compact
      • concat
      • contains
      • distinct
      • element
      • flatten
      • index
      • keys
      • length
      • list
      • lookup
      • map
      • matchkeys
      • merge
      • one
      • range
      • reverse
      • setintersection
      • setproduct
      • setsubtract
      • setunion
      • slice
      • sort
      • sum
      • transpose
      • values
      • zipmap
      • base64decode
      • base64encode
      • base64gzip
      • csvdecode
      • jsondecode
      • jsonencode
      • textdecodebase64
      • textencodebase64
      • urlencode
      • yamldecode
      • yamlencode
      • abspath
      • dirname
      • pathexpand
      • basename
      • file
      • fileexists
      • fileset
      • filebase64
      • templatefile
      • formatdate
      • timeadd
      • timestamp
      • base64sha256
      • base64sha512
      • bcrypt
      • filebase64sha256
      • filebase64sha512
      • filemd5
      • filesha1
      • filesha256
      • filesha512
      • md5
      • rsadecrypt
      • sha1
      • sha256
      • sha512
      • uuid
      • uuidv5
      • cidrhost
      • cidrnetmask
      • cidrsubnet
      • cidrsubnets
      • can
      • defaults
      • nonsensitive
      • sensitive
      • tobool
      • tolist
      • tomap
      • tonumber
      • toset
      • tostring
      • try
      • type
    • abs
    • abspath
    • alltrue
    • anytrue
    • base64decode
    • base64encode
    • base64gzip
    • base64sha256
    • base64sha512
    • basename
    • bcrypt
    • can
    • ceil
    • chomp
    • chunklist
    • cidrhost
    • cidrnetmask
    • cidrsubnet
    • cidrsubnets
    • coalesce
    • coalescelist
    • compact
    • concat
    • contains
    • csvdecode
    • defaults
    • dirname
    • distinct
    • element
    • file
    • filebase64
    • filebase64sha256
    • filebase64sha512
    • fileexists
    • filemd5
    • fileset
    • filesha1
    • filesha256
    • filesha512
    • flatten
    • floor
    • format
    • formatdate
    • formatlist
    • indent
    • index
    • join
    • jsondecode
    • jsonencode
    • keys
    • length
    • list
    • log
    • lookup
    • lower
    • map
    • matchkeys
    • max
    • md5
    • merge
    • min
    • nonsensitive
    • one
    • parseint
    • pathexpand
    • pow
    • range
    • regex
    • regexall
    • replace
    • reverse
    • rsadecrypt
    • sensitive
    • setintersection
    • setproduct
    • setsubtract
    • setunion
    • sha1
    • sha256
    • sha512
    • signum
    • slice
    • sort
    • split
    • strrev
    • substr
    • sum
    • templatefile
    • textdecodebase64
    • textencodebase64
    • timeadd
    • timestamp
    • title
    • tobool
    • tolist
    • tomap
    • tonumber
    • toset
    • tostring
    • transpose
    • trim
    • trimprefix
    • trimspace
    • trimsuffix
    • try
    • type
    • upper
    • urlencode
    • uuid
    • uuidv5
    • values
    • yamldecode
    • yamlencode
    • zipmap
    • Overview
    • Terraform Cloud
      • Backend Configuration
        • local
        • remote
        • artifactory
        • azurerm
        • consul
        • cos
        • etcd
        • etcdv3
        • gcs
        • http
        • Kubernetes
        • manta
        • oss
        • pg
        • s3
        • swift
      • local
      • remote
      • artifactory
      • azurerm
      • consul
      • cos
      • etcd
      • etcdv3
      • gcs
      • http
      • Kubernetes
      • manta
      • oss
      • pg
      • s3
      • swift
    • Overview
    • Purpose
    • The terraform_remote_state Data Source
    • Backends: State Storage and Locking
    • Import Existing Resources
    • Locking
    • Workspaces
    • Remote State
    • Sensitive Data
    • Overview
    • Upgrading to Terraform v1.2
    • Upgrading to Terraform v1.1
    • Upgrading to Terraform v1.0
    • v1.0 Compatibility Promises
    • Upgrading to Terraform v0.15
    • Upgrading to Terraform v0.14
    • Upgrading to Terraform v0.13
    • Upgrading to Terraform v0.12
    • Upgrading to Terraform v0.11
    • Upgrading to Terraform v0.10
    • Upgrading to Terraform v0.9
    • Upgrading to Terraform v0.8
    • Upgrading to Terraform v0.7

  • Terraform Internals

  • Other Docs

  • Intro to Terraform
  • Configuration Language
  • Terraform CLI
  • Terraform Cloud
  • Terraform Enterprise
  • Provider Use
  • Plugin Development
  • Registry Publishing
  • Integration Program
  • Terraform Tools
  • CDK for Terraform
  • Glossary
Type '/' to Search

»base64sha256 Function

base64sha256 computes the SHA256 hash of a given string and encodes it with Base64. This is not equivalent to base64encode(sha256("test")) since sha256() 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=
> base64sha256("hello world")
uU0nuZNNPgilLlLX2n2r+sSE7+N6U4DukIj3rOLvzek=

»Related Functions

  • filebase64sha256 calculates the same hash from the contents of a file rather than from a string value.
  • sha256 calculates the same hash but returns the result in a more-verbose hexadecimal encoding.
github logoEdit this page
  • Overview
  • Docs
  • Extend
  • Privacy
  • Security
  • Press Kit
  • Consent Manager