proto

package
v1.0.0-rc.6 Latest Latest
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 Go to latest Published: May 25, 2023 License: Apache-2.0 Imports: 5 Imported by: 7

Documentation

Overview

Package proto defines the protocol layer for communication between notation and notation external plugin.

Index

Constants

View Source 
const ContractVersion = "1.0"

ContractVersion is the <major>.<minor> version of the plugin contract.

View Source 
const Prefix = "notation-"

Prefix is the prefix required on all plugin binary names.

Variables

This section is empty.

Functions

func DecodeKeySpec 

func DecodeKeySpec(k KeySpec) (keySpec signature.KeySpec, err error)

DecodeKeySpec parses keySpec name to a signature.keySpec type.

func DecodeSigningAlgorithm 

func DecodeSigningAlgorithm(raw SignatureAlgorithm) (signature.Algorithm, error)

DecodeSigningAlgorithm parses the signing algorithm name from a given string.

Types

type Capability 

type Capability string

Capability is a feature available in the plugin contract. 

const (
	// CapabilitySignatureGenerator is the name of the capability
	// for a plugin to support generating raw signatures.
	CapabilitySignatureGenerator Capability = "SIGNATURE_GENERATOR.RAW"

	// CapabilityEnvelopeGenerator is the name of the capability
	// for a plugin to support generating envelope signatures.
	CapabilityEnvelopeGenerator Capability = "SIGNATURE_GENERATOR.ENVELOPE"

	// CapabilityTrustedIdentityVerifier is the name of the
	// capability for a plugin to support verifying trusted identities.
	CapabilityTrustedIdentityVerifier Capability = "SIGNATURE_VERIFIER.TRUSTED_IDENTITY"

	// CapabilityRevocationCheckVerifier is the name of the
	// capability for a plugin to support verifying revocation checks.
	CapabilityRevocationCheckVerifier Capability = "SIGNATURE_VERIFIER.REVOCATION_CHECK"
)

type Command 

type Command string

Command is a CLI command available in the plugin contract. 

const (
	// CommandGetMetadata is the name of the plugin command
	// which must be supported by every plugin and returns the
	// plugin metadata.
	CommandGetMetadata Command = "get-plugin-metadata"

	// CommandDescribeKey is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.RAW capability.
	CommandDescribeKey Command = "describe-key"

	// CommandGenerateSignature is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.RAW capability.
	CommandGenerateSignature Command = "generate-signature"

	// CommandGenerateEnvelope is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.ENVELOPE capability.
	CommandGenerateEnvelope Command = "generate-envelope"

	// CommandVerifySignature is the name of the plugin command
	// which must be supported by every plugin that has
	// any SIGNATURE_VERIFIER.* capability
	CommandVerifySignature Command = "verify-signature"
)

type CriticalAttributes 

type CriticalAttributes struct {
	ContentType          string                 `json:"contentType"`
	SigningScheme        string                 `json:"signingScheme"`
	Expiry               *time.Time             `json:"expiry,omitempty"`
	AuthenticSigningTime *time.Time             `json:"authenticSigningTime,omitempty"`
	ExtendedAttributes   map[string]interface{} `json:"extendedAttributes,omitempty"`
}

CriticalAttributes contains all Notary Project defined critical attributes and their values in the signature envelope

type DescribeKeyRequest 

type DescribeKeyRequest struct {
	ContractVersion string            `json:"contractVersion"`
	KeyID           string            `json:"keyId"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

DescribeKeyRequest contains the parameters passed in a describe-key request.

func (DescribeKeyRequest) Command 

func (DescribeKeyRequest) Command() Command

type DescribeKeyResponse 

type DescribeKeyResponse struct {
	// The same key id as passed in the request.
	KeyID string `json:"keyId"`

	// One of following supported key types:
	// https://github.com/notaryproject/notaryproject/blob/main/specs/signature-specification.md#algorithm-selection
	KeySpec KeySpec `json:"keySpec"`
}

DescribeKeyResponse is the response of a describe-key request.

type ErrorCode 

type ErrorCode string
const (
	// Any of the required request fields was empty,
	// or a value was malformed/invalid.
	ErrorCodeValidation ErrorCode = "VALIDATION_ERROR"

	// The contract version used in the request is unsupported.
	ErrorCodeUnsupportedContractVersion ErrorCode = "UNSUPPORTED_CONTRACT_VERSION"

	// Authentication/authorization error to use given key.
	ErrorCodeAccessDenied ErrorCode = "ACCESS_DENIED"

	// The operation to generate signature timed out
	// and can be retried by Notation.
	ErrorCodeTimeout ErrorCode = "TIMEOUT"

	// The operation to generate signature was throttles
	// and can be retried by Notation.
	ErrorCodeThrottled ErrorCode = "THROTTLED"

	// Any general error that does not fall into any categories.
	ErrorCodeGeneric ErrorCode = "ERROR"
)

type GenerateEnvelopeRequest 

type GenerateEnvelopeRequest struct {
	ContractVersion         string            `json:"contractVersion"`
	KeyID                   string            `json:"keyId"`
	PayloadType             string            `json:"payloadType"`
	SignatureEnvelopeType   string            `json:"signatureEnvelopeType"`
	Payload                 []byte            `json:"payload"`
	ExpiryDurationInSeconds uint64            `json:"expiryDurationInSeconds,omitempty"`
	PluginConfig            map[string]string `json:"pluginConfig,omitempty"`
}

GenerateEnvelopeRequest contains the parameters passed in a generate-envelope request.

func (GenerateEnvelopeRequest) Command 

func (GenerateEnvelopeRequest) Command() Command

type GenerateEnvelopeResponse 

type GenerateEnvelopeResponse struct {
	SignatureEnvelope     []byte            `json:"signatureEnvelope"`
	SignatureEnvelopeType string            `json:"signatureEnvelopeType"`
	Annotations           map[string]string `json:"annotations,omitempty"`
}

GenerateEnvelopeResponse is the response of a generate-envelope request.

type GenerateSignatureRequest 

type GenerateSignatureRequest struct {
	ContractVersion string            `json:"contractVersion"`
	KeyID           string            `json:"keyId"`
	KeySpec         KeySpec           `json:"keySpec"`
	Hash            HashAlgorithm     `json:"hashAlgorithm"`
	Payload         []byte            `json:"payload"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

GenerateSignatureRequest contains the parameters passed in a generate-signature request.

func (GenerateSignatureRequest) Command 

func (GenerateSignatureRequest) Command() Command

type GenerateSignatureResponse 

type GenerateSignatureResponse struct {
	KeyID            string `json:"keyId"`
	Signature        []byte `json:"signature"`
	SigningAlgorithm string `json:"signingAlgorithm"`

	// Ordered list of certificates starting with leaf certificate
	// and ending with root certificate.
	CertificateChain [][]byte `json:"certificateChain"`
}

GenerateSignatureResponse is the response of a generate-signature request.

type GetMetadataRequest 

type GetMetadataRequest struct {
	PluginConfig map[string]string `json:"pluginConfig,omitempty"`
}

GetMetadataRequest contains the parameters passed in a get-plugin-metadata request.

func (GetMetadataRequest) Command 

func (GetMetadataRequest) Command() Command

type GetMetadataResponse 

type GetMetadataResponse struct {
	Name                      string       `json:"name"`
	Description               string       `json:"description"`
	Version                   string       `json:"version"`
	URL                       string       `json:"url"`
	SupportedContractVersions []string     `json:"supportedContractVersions"`
	Capabilities              []Capability `json:"capabilities"`
}

GetMetadataResponse provided by the plugin.

func (*GetMetadataResponse) HasCapability 

func (resp *GetMetadataResponse) HasCapability(capability Capability) bool

HasCapability return true if the metadata states that the capability is supported. Returns true if capability is empty.

type HashAlgorithm 

type HashAlgorithm string

HashAlgorithm is the type of a hash algorithm. 

const (
	HashAlgorithmSHA256 HashAlgorithm = "SHA-256"
	HashAlgorithmSHA384 HashAlgorithm = "SHA-384"
	HashAlgorithmSHA512 HashAlgorithm = "SHA-512"
)

one of the following supported hash algorithm names.

https://github.com/notaryproject/notaryproject/blob/main/specs/signature-specification.md#algorithm-selection

func HashAlgorithmFromKeySpec 

func HashAlgorithmFromKeySpec(k signature.KeySpec) (HashAlgorithm, error)

HashAlgorithmFromKeySpec returns the name of hash function according to the spec.

type KeySpec 

type KeySpec string

KeySpec is type of the signing algorithm, including algorithm and size. 

const (
	KeySpecRSA2048 KeySpec = "RSA-2048"
	KeySpecRSA3072 KeySpec = "RSA-3072"
	KeySpecRSA4096 KeySpec = "RSA-4096"
	KeySpecEC256   KeySpec = "EC-256"
	KeySpecEC384   KeySpec = "EC-384"
	KeySpecEC521   KeySpec = "EC-521"
)

one of the following supported key spec names.

https://github.com/notaryproject/notaryproject/blob/main/specs/signature-specification.md#algorithm-selection

func EncodeKeySpec 

func EncodeKeySpec(k signature.KeySpec) (KeySpec, error)

EncodeKeySpec returns the name of a keySpec according to the spec.

type Request 

type Request interface {
	Command() Command
}

Request defines a plugin request, which is always associated to a command.

type RequestError 

type RequestError struct {
	Code     ErrorCode
	Err      error
	Metadata map[string]string
}

RequestError is the common error response for any request.

func (RequestError) Error 

func (e RequestError) Error() string

func (RequestError) Is 

func (e RequestError) Is(target error) bool

func (RequestError) MarshalJSON 

func (e RequestError) MarshalJSON() ([]byte, error)

func (*RequestError) UnmarshalJSON 

func (e *RequestError) UnmarshalJSON(data []byte) error

func (RequestError) Unwrap 

func (e RequestError) Unwrap() error

type Signature 

type Signature struct {
	CriticalAttributes    CriticalAttributes `json:"criticalAttributes"`
	UnprocessedAttributes []string           `json:"unprocessedAttributes"`
	CertificateChain      [][]byte           `json:"certificateChain"`
}

Signature represents a signature pulled from the envelope

type SignatureAlgorithm 

type SignatureAlgorithm string

SignatureAlgorithm is the type of signature algorithm 

const (
	SignatureAlgorithmECDSA_SHA256      SignatureAlgorithm = "ECDSA-SHA-256"
	SignatureAlgorithmECDSA_SHA384      SignatureAlgorithm = "ECDSA-SHA-384"
	SignatureAlgorithmECDSA_SHA512      SignatureAlgorithm = "ECDSA-SHA-512"
	SignatureAlgorithmRSASSA_PSS_SHA256 SignatureAlgorithm = "RSASSA-PSS-SHA-256"
	SignatureAlgorithmRSASSA_PSS_SHA384 SignatureAlgorithm = "RSASSA-PSS-SHA-384"
	SignatureAlgorithmRSASSA_PSS_SHA512 SignatureAlgorithm = "RSASSA-PSS-SHA-512"
)

one of the following supported signing algorithm names.

https://github.com/notaryproject/notaryproject/blob/main/specs/signature-specification.md#algorithm-selection

func EncodeSigningAlgorithm 

func EncodeSigningAlgorithm(alg signature.Algorithm) (SignatureAlgorithm, error)

EncodeSigningAlgorithm returns the signing algorithm name of an algorithm according to the spec.

type TrustPolicy 

type TrustPolicy struct {
	TrustedIdentities     []string     `json:"trustedIdentities"`
	SignatureVerification []Capability `json:"signatureVerification"`
}

TrustPolicy represents trusted identities that sign the artifacts

type VerificationResult 

type VerificationResult struct {
	Success bool   `json:"success"`
	Reason  string `json:"reason,omitempty"`
}

VerificationResult is the result of a verification performed by the plugin

type VerifySignatureRequest 

type VerifySignatureRequest struct {
	ContractVersion string            `json:"contractVersion"`
	Signature       Signature         `json:"signature"`
	TrustPolicy     TrustPolicy       `json:"trustPolicy"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

VerifySignatureRequest contains the parameters passed in a verify-signature request.

func (VerifySignatureRequest) Command 

func (VerifySignatureRequest) Command() Command

type VerifySignatureResponse 

type VerifySignatureResponse struct {
	VerificationResults map[Capability]*VerificationResult `json:"verificationResults"`
	ProcessedAttributes []interface{}                      `json:"processedAttributes"`
}

VerifySignatureResponse is the response of a verify-signature request.

Source Files

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