Encrypting Data with AWS Key Management Service

The following example uses the AWS SDK for GoEncrypt method, which implements the Encrypt operation, to encrypt the string “1234567890”. The example displays a readable version of the resulting encrypted blob.

import (
    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/service/kms"

    "fmt"
    "os"
)

func main() {
    // Initialize a session in us-west-2 that the SDK will use to load
    // credentials from the shared credentials file ~/.aws/credentials.
    sess, err := session.NewSession(&aws.Config{
        Region: aws.String("us-west-2")},
    )

    // Create KMS service client
    svc := kms.New(sess)

    // Encrypt data key
    //
    // Replace the fictitious key ARN with a valid key ID

    keyId := "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"

    text := "1234567890"

    // Encrypt the data
    result, err := svc.Encrypt(&kms.EncryptInput{
        KeyId: aws.String(keyId),
        Plaintext: []byte(text),
    })

    if err != nil {
        fmt.Println("Got error encrypting data: ", err)
        os.Exit(1)
    }

    fmt.Println("Blob (base-64 byte array):")
    fmt.Println(result.CiphertextBlob)
}

Choose Copy to save the code locally. See the complete example on GitHub.