mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
2d8fcd9bf4
Co-authored-by: Malte Poll <mp@edgeless.systems> Co-authored-by: katexochen <katexochen@users.noreply.github.com> Co-authored-by: Daniel Weiße <dw@edgeless.systems> Co-authored-by: Thomas Tendyck <tt@edgeless.systems> Co-authored-by: Benedict Schlueter <bs@edgeless.systems> Co-authored-by: leongross <leon.gross@rub.de> Co-authored-by: Moritz Eckert <m1gh7ym0@gmail.com>
90 lines
4.4 KiB
Go
90 lines
4.4 KiB
Go
package aws
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"time"
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"github.com/edgelesssys/constellation/coordinator/oid"
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)
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// https://aws-nitro-enclaves.amazonaws.com/AWS_NitroEnclaves_Root-G1.zip
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var awsNitroEnclavesRoot = []byte{
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0x30, 0x82, 0x02, 0x11, 0x30, 0x82, 0x01, 0x96, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x11, 0x00,
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0xf9, 0x31, 0x75, 0x68, 0x1b, 0x90, 0xaf, 0xe1, 0x1d, 0x46, 0xcc, 0xb4, 0xe4, 0xe7, 0xf8, 0x56,
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0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x03, 0x30, 0x49, 0x31, 0x0b,
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0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x0f, 0x30, 0x0d, 0x06,
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0x03, 0x55, 0x04, 0x0a, 0x0c, 0x06, 0x41, 0x6d, 0x61, 0x7a, 0x6f, 0x6e, 0x31, 0x0c, 0x30, 0x0a,
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0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x03, 0x41, 0x57, 0x53, 0x31, 0x1b, 0x30, 0x19, 0x06, 0x03,
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0x55, 0x04, 0x03, 0x0c, 0x12, 0x61, 0x77, 0x73, 0x2e, 0x6e, 0x69, 0x74, 0x72, 0x6f, 0x2d, 0x65,
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0x6e, 0x63, 0x6c, 0x61, 0x76, 0x65, 0x73, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x39, 0x31, 0x30, 0x32,
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0x38, 0x31, 0x33, 0x32, 0x38, 0x30, 0x35, 0x5a, 0x17, 0x0d, 0x34, 0x39, 0x31, 0x30, 0x32, 0x38,
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0x31, 0x34, 0x32, 0x38, 0x30, 0x35, 0x5a, 0x30, 0x49, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
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0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x0f, 0x30, 0x0d, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c,
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0x06, 0x41, 0x6d, 0x61, 0x7a, 0x6f, 0x6e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0b,
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0x0c, 0x03, 0x41, 0x57, 0x53, 0x31, 0x1b, 0x30, 0x19, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x12,
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0x61, 0x77, 0x73, 0x2e, 0x6e, 0x69, 0x74, 0x72, 0x6f, 0x2d, 0x65, 0x6e, 0x63, 0x6c, 0x61, 0x76,
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0x65, 0x73, 0x30, 0x76, 0x30, 0x10, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,
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0x05, 0x2b, 0x81, 0x04, 0x00, 0x22, 0x03, 0x62, 0x00, 0x04, 0xfc, 0x02, 0x54, 0xeb, 0xa6, 0x08,
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0xc1, 0xf3, 0x68, 0x70, 0xe2, 0x9a, 0xda, 0x90, 0xbe, 0x46, 0x38, 0x32, 0x92, 0x73, 0x6e, 0x89,
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0x4b, 0xff, 0xf6, 0x72, 0xd9, 0x89, 0x44, 0x4b, 0x50, 0x51, 0xe5, 0x34, 0xa4, 0xb1, 0xf6, 0xdb,
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0xe3, 0xc0, 0xbc, 0x58, 0x1a, 0x32, 0xb7, 0xb1, 0x76, 0x07, 0x0e, 0xde, 0x12, 0xd6, 0x9a, 0x3f,
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0xea, 0x21, 0x1b, 0x66, 0xe7, 0x52, 0xcf, 0x7d, 0xd1, 0xdd, 0x09, 0x5f, 0x6f, 0x13, 0x70, 0xf4,
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0x17, 0x08, 0x43, 0xd9, 0xdc, 0x10, 0x01, 0x21, 0xe4, 0xcf, 0x63, 0x01, 0x28, 0x09, 0x66, 0x44,
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0x87, 0xc9, 0x79, 0x62, 0x84, 0x30, 0x4d, 0xc5, 0x3f, 0xf4, 0xa3, 0x42, 0x30, 0x40, 0x30, 0x0f,
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0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30,
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0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x90, 0x25, 0xb5, 0x0d, 0xd9, 0x05,
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0x47, 0xe7, 0x96, 0xc3, 0x96, 0xfa, 0x72, 0x9d, 0xcf, 0x99, 0xa9, 0xdf, 0x4b, 0x96, 0x30, 0x0e,
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0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x01, 0x86, 0x30, 0x0a,
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0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x03, 0x03, 0x69, 0x00, 0x30, 0x66, 0x02,
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0x31, 0x00, 0xa3, 0x7f, 0x2f, 0x91, 0xa1, 0xc9, 0xbd, 0x5e, 0xe7, 0xb8, 0x62, 0x7c, 0x16, 0x98,
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0xd2, 0x55, 0x03, 0x8e, 0x1f, 0x03, 0x43, 0xf9, 0x5b, 0x63, 0xa9, 0x62, 0x8c, 0x3d, 0x39, 0x80,
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0x95, 0x45, 0xa1, 0x1e, 0xbc, 0xbf, 0x2e, 0x3b, 0x55, 0xd8, 0xae, 0xee, 0x71, 0xb4, 0xc3, 0xd6,
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0xad, 0xf3, 0x02, 0x31, 0x00, 0xa2, 0xf3, 0x9b, 0x16, 0x05, 0xb2, 0x70, 0x28, 0xa5, 0xdd, 0x4b,
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0xa0, 0x69, 0xb5, 0x01, 0x6e, 0x65, 0xb4, 0xfb, 0xde, 0x8f, 0xe0, 0x06, 0x1d, 0x6a, 0x53, 0x19,
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0x7f, 0x9c, 0xda, 0xf5, 0xd9, 0x43, 0xbc, 0x61, 0xfc, 0x2b, 0xeb, 0x03, 0xcb, 0x6f, 0xee, 0x8d,
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0x23, 0x02, 0xf3, 0xdf, 0xf6,
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}
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type attestationDocument struct {
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ModuleID string `json:"module_id"`
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Digest string
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Timestamp int
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Pcrs map[string]string
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PublicKey []byte `json:"public_key"`
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UserData []byte `json:"user_data"`
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Nonce []byte
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}
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type VerifyFunc func(adBlob []byte, rootCertDer []byte, ts time.Time) (string, error)
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type Validator struct {
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oid.AWS
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getVerifiedPayloadAsJson VerifyFunc
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}
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func NewValidator(getVerifiedPayloadAsJson VerifyFunc) *Validator {
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return &Validator{getVerifiedPayloadAsJson: getVerifiedPayloadAsJson}
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}
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func (a *Validator) Validate(attDoc []byte, nonce []byte) ([]byte, error) {
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jsonStr, err := a.getVerifiedPayloadAsJson(attDoc, awsNitroEnclavesRoot, time.Now())
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if err != nil {
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return nil, err
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}
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var parsedAttDoc attestationDocument
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if err := json.Unmarshal([]byte(jsonStr), &parsedAttDoc); err != nil {
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return nil, err
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}
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if !bytes.Equal(parsedAttDoc.Nonce, nonce) {
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return nil, fmt.Errorf("validator: failed nonce freshness for nonce: %s", parsedAttDoc.Nonce)
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}
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// TODO: Choose PCRs for validation
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return parsedAttDoc.UserData, nil
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}
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