kms

Documentation

Overview

Package kms contains an implementation of the go.mozilla.org/sops/v3.MasterKey interface that encrypts and decrypts the data key using AWS KMS with the SDK for Go V2.

Index

• func ParseKMSContext(in interface{}) map[string]*string
• type CredentialsProvider
  • func NewCredentialsProvider(cp aws.CredentialsProvider) *CredentialsProvider
  • func (c CredentialsProvider) ApplyToMasterKey(key *MasterKey)
• type MasterKey
  • func MasterKeysFromArnString(arn string, context map[string]*string, awsProfile string) []*MasterKey
  • func NewMasterKey(arn string, role string, context map[string]*string) *MasterKey
  • func NewMasterKeyFromArn(arn string, context map[string]*string, awsProfile string) *MasterKey
  • func (key *MasterKey) Decrypt() ([]byte, error)
  • func (key *MasterKey) Encrypt(dataKey []byte) error
  • func (key *MasterKey) EncryptIfNeeded(dataKey []byte) error
  • func (key *MasterKey) EncryptedDataKey() []byte
  • func (key *MasterKey) NeedsRotation() bool
  • func (key *MasterKey) SetEncryptedDataKey(enc []byte)
  • func (key MasterKey) ToMap() map[string]interface{}
  • func (key *MasterKey) ToString() string

Functions

func ParseKMSContext

func ParseKMSContext(in interface{}) map[string]*string

ParseKMSContext takes either a KMS context map or a comma-separated list of KMS context key:value pairs, and returns a map.

Types

type CredentialsProvider

type CredentialsProvider struct {
	// contains filtered or unexported fields
}

CredentialsProvider is a wrapper around aws.CredentialsProvider used for authentication towards AWS KMS.

func NewCredentialsProvider

func NewCredentialsProvider(cp aws.CredentialsProvider) *CredentialsProvider

NewCredentialsProvider returns a CredentialsProvider object with the provided aws.CredentialsProvider.

func (CredentialsProvider) ApplyToMasterKey

func (c CredentialsProvider) ApplyToMasterKey(key *MasterKey)

ApplyToMasterKey configures the credentials on the provided key.

type MasterKey

type MasterKey struct {
	// Arn associated with the AWS KMS key.
	Arn string
	// Role ARN used to assume a role through AWS STS.
	Role string
	// EncryptedKey stores the data key in it's encrypted form.
	EncryptedKey string
	// CreationDate is when this MasterKey was created.
	CreationDate time.Time
	// EncryptionContext provides additional context about the data key.
	// Ref: https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#encrypt_context
	EncryptionContext map[string]*string
	// AwsProfile is the profile to use for loading configuration and credentials.
	// Ref: https://aws.github.io/aws-sdk-go-v2/docs/configuring-sdk/#specifying-profiles
	AwsProfile string
	// contains filtered or unexported fields
}

MasterKey is an AWS KMS key used to encrypt and decrypt SOPS' data key using AWS SDK for Go V2.

func MasterKeysFromArnString

func MasterKeysFromArnString(arn string, context map[string]*string, awsProfile string) []*MasterKey

MasterKeysFromArnString takes a comma separated list of AWS KMS ARNs, and returns a slice of new MasterKeys for those ARNs.

func NewMasterKey

func NewMasterKey(arn string, role string, context map[string]*string) *MasterKey

NewMasterKey creates a new MasterKey from an ARN, role and context, setting the creation date to the current date.

func NewMasterKeyFromArn

func NewMasterKeyFromArn(arn string, context map[string]*string, awsProfile string) *MasterKey

NewMasterKeyFromArn takes an ARN string and returns a new MasterKey for that ARN.

func (*MasterKey) Decrypt

func (key *MasterKey) Decrypt() ([]byte, error)

Decrypt decrypts the EncryptedKey with a newly created AWS KMS config, and returns the result.

func (*MasterKey) Encrypt

func (key *MasterKey) Encrypt(dataKey []byte) error

Encrypt takes a SOPS data key, encrypts it with KMS and stores the result in the EncryptedKey field.

func (*MasterKey) EncryptIfNeeded

func (key *MasterKey) EncryptIfNeeded(dataKey []byte) error

EncryptIfNeeded encrypts the provided SOPS data key, if it has not been encrypted yet.

func (*MasterKey) EncryptedDataKey

func (key *MasterKey) EncryptedDataKey() []byte

EncryptedDataKey returns the encrypted data key this master key holds.

func (*MasterKey) NeedsRotation

func (key *MasterKey) NeedsRotation() bool

NeedsRotation returns whether the data key needs to be rotated or not.

func (*MasterKey) SetEncryptedDataKey

func (key *MasterKey) SetEncryptedDataKey(enc []byte)

SetEncryptedDataKey sets the encrypted data key for this master key.

func (MasterKey) ToMap

func (key MasterKey) ToMap() map[string]interface{}

ToMap converts the MasterKey to a map for serialization purposes.

func (*MasterKey) ToString

func (key *MasterKey) ToString() string

ToString converts the key to a string representation.