< draft-birkholz-rats-basic-yang-module-00.txt   draft-birkholz-rats-basic-yang-module-01.txt >
TBD H. Birkholz RATS Working Group H. Birkholz
Internet-Draft Fraunhofer SIT Internet-Draft M. Eckel
Intended status: Standards Track M. Eckel Intended status: Standards Track Fraunhofer SIT
Expires: September 13, 2019 Huawei Expires: January 9, 2020 S. Bhandari
S. Bhandari
B. Sulzen B. Sulzen
E. Voit E. Voit
Cisco Cisco
L. Xia
Huawei
T. Laffey
HPE
G. Fedorkow G. Fedorkow
Juniper Juniper
March 12, 2019 July 08, 2019
YANG Module for Basic Challenge-Response-based Remote Attestation YANG Module for Basic Challenge-Response-based Remote Attestation
Procedures Procedures
draft-birkholz-rats-basic-yang-module-00 draft-birkholz-rats-basic-yang-module-01
Abstract Abstract
This document defines a YANG RPC and a minimal datastore tree This document defines a YANG RPC and a minimal datastore tree
required to retrieve attestation evidence about integrity required to retrieve attestation evidence about integrity
measurements from a composite device with one or more roots of trust measurements from a composite device with one or more roots of trust
for reporting. Complementary measurement logs are also provided by for reporting. Complementary measurement logs are also provided by
the YANG RPC originating from one or more roots of trust of the YANG RPC originating from one or more roots of trust of
measurement. The module defined requires a TPM 2.0 and corresponding measurement. The module defined requires a TPM 2.0 and corresponding
Trusted Software Stack included in the device components of the Trusted Software Stack included in the device components of the
skipping to change at page 1, line 45 skipping to change at page 1, line 48
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 13, 2019. This Internet-Draft will expire on January 9, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 2, line 26 skipping to change at page 2, line 26
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements notation . . . . . . . . . . . . . . . . . . 3 1.1. Requirements notation . . . . . . . . . . . . . . . . . . 3
2. The YANG Module for Basic Remote Attestation Procedures . . . 3 2. The YANG Module for Basic Remote Attestation Procedures . . . 3
2.1. Tree format . . . . . . . . . . . . . . . . . . . . . . . 3 2.1. Tree format . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Raw Format . . . . . . . . . . . . . . . . . . . . . . . 6 2.2. Raw Format . . . . . . . . . . . . . . . . . . . . . . . 7
3. IANA considerations . . . . . . . . . . . . . . . . . . . . . 20 3. IANA considerations . . . . . . . . . . . . . . . . . . . . . 29
4. Security Considerations . . . . . . . . . . . . . . . . . . . 20 4. Security Considerations . . . . . . . . . . . . . . . . . . . 29
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 20 5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 29
6. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 20 6. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 29
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 20 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1. Normative References . . . . . . . . . . . . . . . . . . 21 7.1. Normative References . . . . . . . . . . . . . . . . . . 29
7.2. Informative References . . . . . . . . . . . . . . . . . 21 7.2. Informative References . . . . . . . . . . . . . . . . . 30
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 21 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 30
1. Introduction 1. Introduction
This document is based on the terminology defined in the This document is based on the terminology defined in the
[I-D.birkholz-attestation-terminology] and uses the interaction model [I-D.birkholz-attestation-terminology] and uses the interaction model
and information elements defined in the and information elements defined in the
[I-D.birkholz-reference-ra-interaction-model] document. The [I-D.birkholz-rats-reference-interaction-model] document. The
currently supported hardware security module (HWM) - sometimes also currently supported hardware security module (HWM) - sometimes also
referred to as an embedded secure element(eSE) - is the Trusted referred to as an embedded secure element(eSE) - is the Trusted
Platform Module (TPM) 2.0 specified by the Trusted Computing Group Platform Module (TPM) 2.0 specified by the Trusted Computing Group
(TCG). One ore more TPM 2.0 embedded in the components of a (TCG). One ore more TPM 2.0 embedded in the components of a
composite device - sometimes also referred to as an aggregate device composite device - sometimes also referred to as an aggregate device
- are required in order to use the YANG module defined in this - are required in order to use the YANG module defined in this
document. A TPM 2.0 is used as a root of trust for reporting (RTR) document. A TPM 2.0 is used as a root of trust for reporting (RTR)
in order to retrieve attestation evidence from a composite device. in order to retrieve attestation evidence from a composite device.
Additionally, it is used as a root of trust for measurement (RTM) in Additionally, it is used as a root of trust for measurement (RTM) in
order to provide event logs - sometimes also referred to as order to provide event logs - sometimes also referred to as
skipping to change at page 3, line 21 skipping to change at page 3, line 21
2. The YANG Module for Basic Remote Attestation Procedures 2. The YANG Module for Basic Remote Attestation Procedures
One or more TPM 2.0 MUST be embedded in the composite device that is One or more TPM 2.0 MUST be embedded in the composite device that is
providing attestation evidence via the YANG module defined in this providing attestation evidence via the YANG module defined in this
document. The ietf-basic-remote-attestation YANG module enables a document. The ietf-basic-remote-attestation YANG module enables a
composite device to take on the role of Claimant and Attester in composite device to take on the role of Claimant and Attester in
accordance with the Remote Attestation Procedures (RATS) architecture accordance with the Remote Attestation Procedures (RATS) architecture
[I-D.birkholz-attestation-terminology] and the corresponding [I-D.birkholz-attestation-terminology] and the corresponding
challenge-response interaction model defined in the challenge-response interaction model defined in the
[I-D.birkholz-reference-ra-interaction-model] document. A fresh [I-D.birkholz-rats-reference-interaction-model] document. A fresh
nonce with an appropriate amount of entropy MUST be supplied by the nonce with an appropriate amount of entropy MUST be supplied by the
YANG client in order to enable a proof-of-freshness with respect to YANG client in order to enable a proof-of-freshness with respect to
the attestation evidence provided by the attester running the YANG the attestation evidence provided by the attester running the YANG
datastore. The functions of this YANG module are restricted to 0-1 datastore. The functions of this YANG module are restricted to 0-1
TPM 2.0 per hardware component. TPM 2.0 per hardware component.
2.1. Tree format 2.1. Tree format
<CODE BEGINS> <CODE BEGINS>
module: ietf-basic-remote-attestation module: ietf-basic-remote-attestation
+--ro rats-support-structures +--ro rats-support-structures
+--ro supported-algos* uint16 +--ro supported-algos* uint16
+--ro tpms* [tpm_name] +--ro tpms* [tpm_name]
| +--ro tpm_name string | +--ro tpm_name string
| +--ro tpm-physical-index? int32 {ietfhw:entity-mib}? | +--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro certificates* []
| +--ro certificate
| +--ro certificate-name? string
| +--ro certificate-type? enumeration
| +--ro certificate-value? ietfct:end-entity-cert-cms
+--ro compute-nodes* [node-name] +--ro compute-nodes* [node-name]
| +--ro node-name string +--ro node-name string
| +--ro node-physical-index? int32 {ietfhw:entity-mib}? +--ro node-physical-index? int32 {ietfhw:entity-mib}?
+--ro endorsement-certificates
+--ro certificate* [tpm_name]
+--ro tpm_name string
+--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
+--ro endorsement-certificate binary
rpcs: rpcs:
+---x tpm2-challenge-response-attestation +---x tpm12-challenge-response-attestation
| +---w input | +---w input
| | +---w tpm2-attestation-challenge | | +---w tpm1-attestation-challenge
| | +---w pcr-indices* uint8
| | +---w nonce-value binary
| | +---w TPM_SIG_SCHEME-value uint8
| | +---w (key-identifier)?
| | | +--:(public-key)
| | | | +---w pub-key-id? binary
| | | +--:(TSS_UUID)
| | | +---w TSS_UUID-value
| | | +---w ulTimeLow? uint32
| | | +---w usTimeMid? uint16
| | | +---w usTimeHigh? uint16
| | | +---w bClockSeqHigh? uint8
| | | +---w bClockSeqLow? uint8
| | | +---w rgbNode* uint8
| | +---w add-version? boolean
| | +---w tpm_name? string
| | +---w tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro output
| +--ro tpm12-attestation-response* [tpm_name]
| +--ro tpm_name string
| +--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro up-time? uint32
| +--ro node-name? string
| +--ro node-physical-index? int32 {ietfhw:entity-mib}?
| +--ro fixed? binary
| +--ro external-data? binary
| +--ro signature-size? uint32
| +--ro signature? binary
| +--ro (tpm12-quote)
| +--:(tpm12-quote1)
| | +--ro version* []
| | | +--ro major? uint8
| | | +--ro minor? uint8
| | | +--ro revMajor? uint8
| | | +--ro revMinor? uint8
| | +--ro digest-value? binary
| | +--ro TPM_PCR_COMPOSITE* []
| | +--ro pcr-indices* uint8
| | +--ro value-size? uint32
| | +--ro tpm12-pcr-value* binary
| +--:(tpm12-quote2)
| +--ro tag? uint8
| +--ro pcr-indices* uint8
| +--ro locality-at-release? uint8
| +--ro digest-at-release? binary
+---x tpm20-challenge-response-attestation
| +---w input
| | +---w tpm20-attestation-challenge
| | | +---w pcr-list* [] | | | +---w pcr-list* []
| | | | +---w pcr | | | | +---w pcr
| | | | +---w pcr-indices* uint8 | | | | +---w pcr-indices* uint8
| | | | +---w (algo-registry-type) | | | | +---w (algo-registry-type)
| | | | +--:(tcg) | | | | +--:(tcg)
| | | | | +---w tcg-hash-algo-id? uint16 | | | | | +---w tcg-hash-algo-id? uint16
| | | | +--:(ietf) | | | | +--:(ietf)
| | | | +---w ietf-ni-hash-algo-id? uint8 | | | | +---w ietf-ni-hash-algo-id? uint8
| | | +---w nonce-value binary | | | +---w nonce-value binary
| | | +---w (signature-identifier-type) | | | +---w (signature-identifier-type)
| | | | +--:(TPM_ALG_ID) | | | | +--:(TPM_ALG_ID)
| | | | | +---w TPM_ALG_ID-value? uint16 | | | | | +---w TPM_ALG_ID-value? uint16
| | | | +--:(COSE_Algorithm) | | | | +--:(COSE_Algorithm)
| | | | +---w COSE_Algorithm-value? int32 | | | | +---w COSE_Algorithm-value? int32
| | | +---w (key-identifier)? | | | +---w (key-identifier)?
| | | +--:(public-key) | | | +--:(public-key)
| | | | +---w pub-key-id? binary | | | | +---w pub-key-id? binary
| | | +--:(uuid) | | | +--:(uuid)
| | | +---w uuid-value? binary | | | +---w uuid-value? binary
| | +---w tpm_name? string | | +---w tpms* [tpm_name]
| | +---w tpm-physical-index? int32 {ietfhw:entity-mib}? | | +---w tpm_name string
| | +---w tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro output | +--ro output
| +--ro tpm2-attestation-response* [tpm_name] | +--ro tpm20-attestation-response* [tpm_name]
| +--ro tpm_name string | +--ro tpm_name string
| +--ro tpm-physical-index? int32 {ietfhw:entity-mib}? | +--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro up-time? uint32 | +--ro up-time? uint32
| +--ro node-name? string | +--ro node-name? string
| +--ro node-physical-index? int32 {ietfhw:entity-mib}? | +--ro node-physical-index? int32 {ietfhw:entity-mib}?
| +--ro tpms-attest | +--ro tpms-attest
| | +--ro pcrdigest? binary | | +--ro pcrdigest? binary
| | +--ro tpms-attest-result? binary | | +--ro tpms-attest-result? binary
| | +--ro tpms-attest-result-length? uint32 | | +--ro tpms-attest-result-length? uint32
| +--ro tpmt-signature? binary | +--ro tpmt-signature? binary
skipping to change at page 5, line 35 skipping to change at page 6, line 36
| | +---w pcr | | +---w pcr
| | +---w pcr-indices* uint8 | | +---w pcr-indices* uint8
| | +---w (algo-registry-type) | | +---w (algo-registry-type)
| | +--:(tcg) | | +--:(tcg)
| | | +---w tcg-hash-algo-id? uint16 | | | +---w tcg-hash-algo-id? uint16
| | +--:(ietf) | | +--:(ietf)
| | +---w ietf-ni-hash-algo-id? uint8 | | +---w ietf-ni-hash-algo-id? uint8
| +---w log-entry-quantity? uint16 | +---w log-entry-quantity? uint16
+--ro output +--ro output
+--ro system-event-logs +--ro system-event-logs
+--ro node-data* [node-name] +--ro node-data* [node-name tpm_name]
+--ro node-name string +--ro node-name string
+--ro node-physical-index? int32 {ietfhw:entity-mib}? +--ro node-physical-index? int32 {ietfhw:entity-mib}?
+--ro up-time? uint32 +--ro up-time? uint32
+--ro tpm-updated* [tpm_name] +--ro tpm_name string
| +--ro tpm_name string +--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
| +--ro tpm-physical-index? int32 {ietfhw:entity-mib}?
+--ro log-result +--ro log-result
+--ro (log-type) +--ro (log-type)
+--:(bios) +--:(bios)
| +--ro bios-event-logs | +--ro bios-event-logs
| +--ro bios-event-entry* [event-number] | +--ro bios-event-entry* [event-number]
| +--ro event-number uint32 | +--ro event-number uint32
| +--ro event-type? uint32 | +--ro event-type? uint32
| +--ro pcr-index? uint16 | +--ro pcr-index? uint16
| +--ro digest-list* [] | +--ro digest-list* []
| | +--ro (algo-registry-type) | | +--ro (algo-registry-type)
skipping to change at page 6, line 42 skipping to change at page 7, line 42
prefix yang; prefix yang;
} }
import ietf-hardware { import ietf-hardware {
prefix ietfhw; prefix ietfhw;
} }
import ietf-crypto-types { import ietf-crypto-types {
prefix ietfct; prefix ietfct;
} }
organization organization
"Fraunhofer SIT"; "Fraunhofer SIT";
contact contact
"Henk Birkholz "Henk Birkholz
Fraunhofer Institute for Secure Information Technology Fraunhofer Institute for Secure Information Technology
Email: henk.birkholz@sit.fraunhofer.de"; Email: henk.birkholz@sit.fraunhofer.de";
description description
"A YANG module to enable a TPM 2.0 based remote attestation "A YANG module to enable TPM 1.2 and TPM 2.0 based
procedure. remote attestation procedures.
Copyright (C) Fraunhofer SIT (2018)."; Copyright (C) Fraunhofer SIT (2019).";
revision "2018-06-15" { revision "2019-07-08" {
description description
"Initial version"; "Second version";
reference reference
"draft-birkholz-yang-basic-remote-attestation"; "draft-birkholz-rats-basic-yang-module";
} }
grouping hash-algo { grouping hash-algo {
description description
"A selector for the hashing algorithm"; "A selector for the hashing algorithm";
choice algo-registry-type { choice algo-registry-type {
mandatory true; mandatory true;
description description
"Unfortunately, both IETF and TCG have registries here. "Unfortunately, both IETF and TCG have registries here.
Choose your weapon wisely."; Choose your weapon wisely.";
skipping to change at page 7, line 45 skipping to change at page 8, line 45
description description
"This is an index referencing the Named Information "This is an index referencing the Named Information
Hash Algorithm Registry."; Hash Algorithm Registry.";
} }
} }
} }
} }
grouping hash { grouping hash {
description description
"The hash value including hash-algo identifer"; "The hash value including hash-algo identifier";
list hash-digests { list hash-digests {
description description
"The list of hashes."; "The list of hashes.";
container hash-digest { container hash-digest {
description description
"A hash value based on a hash algorithm registered by an "A hash value based on a hash algorithm registered by an
SDO."; SDO.";
uses hash-algo; uses hash-algo;
leaf hash-value { leaf hash-value {
type binary; type binary;
description description
"The binary representaion of the hash value."; "The binary representation of the hash value.";
} }
} }
} }
} }
grouping nonce { grouping nonce {
description description
"A nonce to show freshness and counter replays."; "A nonce to show freshness and counter replays.";
leaf nonce-value { leaf nonce-value {
type binary; type binary;
mandatory true; mandatory true;
description description
"This nonce SHOULD be generated via a registered "This nonce SHOULD be generated via a registered
cryptographic-strength algorithm. In consequence, the length cryptographic-strength algorithm. In consequence, the length
of the nonce depends on the hash algorithm used. The algorithm of the nonce depends on the hash algorithm used. The algorithm
used in this case is independent from the hash algorithm used to used in this case is independent from the hash algorithm used to
create the hash-value in the response of the attestor."; create the hash-value in the response of the attestor.";
} }
} }
grouping pcr-selection { grouping tpm12-pcr-selection {
description
"A Verifier can request one or more PCR values using its
individually created Attestation Key Certificate (AC).
The corresponding selection filter is represented in this grouping.
Requesting a PCR value that is not in scope of the AC used, detailed
exposure via error msg should be avoided.";
leaf-list pcr-indices {
type uint8;
description
"The numbers/indexes of the PCRs. At the moment this is limited
to 32.";
}
}
grouping tpm20-pcr-selection {
description description
"A Verifier can request one or more PCR values uses its "A Verifier can request one or more PCR values uses its
individually created AC. The corresponding selection filter is individually created AC. The corresponding selection filter is
represented in this grouping. Requesting a PCR value that is not in represented in this grouping. Requesting a PCR value that is not
scope of the AC used, detailed exposure via error msg should be in scope of the AC used, detailed exposure via error msg should
avoided."; be avoided.";
list pcr-list { list pcr-list {
description description
"For each PCR in this list an individual list of banks (hash-algo) "For each PCR in this list an individual list of banks
can be requested. It depends on the datastore, if every bank in (hash-algo) can be requested. It depends on the datastore, if
this grouping is included per PCR (crude), or if each requested every bank in this grouping is included per PCR (crude), or if
bank set is returned for each PCR individually (elegant)."; each requested bank set is returned for each PCR individually
(elegant).";
container pcr { container pcr {
description description
"The composite of a PCR number and corresponding bank numbers."; "The composite of a PCR number and corresponding bank
numbers.";
leaf-list pcr-indices { leaf-list pcr-indices {
type uint8; type uint8;
description description
"The number of the PCR. At the moment this is limited "The number of the PCR. At the moment this is limited
32"; 32";
} }
uses hash-algo; uses hash-algo;
} }
} }
} }
skipping to change at page 9, line 23 skipping to change at page 10, line 41
(non-migratable, tpm-resident) wrt one or more PCR values. (non-migratable, tpm-resident) wrt one or more PCR values.
The corresponding creation input is represented in this grouping. The corresponding creation input is represented in this grouping.
Requesting a PCR value that is not supported results in an error, Requesting a PCR value that is not supported results in an error,
detailed exposure via error msg should be avoided."; detailed exposure via error msg should be avoided.";
list pcr-list { list pcr-list {
description description
"For each PCR in this list an individual hash-algo can be "For each PCR in this list an individual hash-algo can be
requested."; requested.";
container pcr { container pcr {
description description
"The composite of a PCR number and corresponding bank numbers."; "The composite of a PCR number and corresponding bank
numbers.";
leaf-list pcr-index { leaf-list pcr-index {
type uint8; type uint8;
description description
"The numbers of the PCRs that are associated with "The numbers of the PCRs that are associated with
the created key. At the moment the highest number is 32"; the created key. At the moment the highest number is 32";
} }
uses hash-algo; uses hash-algo;
} }
} }
} }
grouping tpm12-signature-scheme {
description
"The signature scheme used to sign the evidence via a TPM 1.2.";
leaf TPM_SIG_SCHEME-value {
type uint8;
mandatory true;
description
"Selects the signature scheme that is used to sign the TPM quote
information response. Allowed values can be found in the table at
the bottom of page 32 in the TPM 1.2 Structures specification
(Level 2 Revision 116, 1 March 2011).";
}
}
grouping signature-scheme { grouping tpm20-signature-scheme {
description description
"The signature scheme used to sign the evidence."; "The signature scheme used to sign the evidence.";
choice signature-identifier-type { choice signature-identifier-type {
mandatory true; mandatory true;
description description
"There are multiple ways to reference a signature type. "There are multiple ways to reference a signature type.
This used to select the signature algo to sign the quote This used to select the signature algo to sign the quote
information response."; information response.";
case TPM_ALG_ID { case TPM_ALG_ID {
description description
"This references the indices of table 9 in the TPM 2.0 structure specification."; "This references the indices of table 9 in the TPM 2.0
structure specification.";
leaf TPM_ALG_ID-value { leaf TPM_ALG_ID-value {
type uint16; type uint16;
description description
"The TPM Algo ID."; "The TPM Algo ID.";
} }
} }
case COSE_Algorithm { case COSE_Algorithm {
description description
"This references the IANA COSE Algorithms Registry indices. Every index of this "This references the IANA COSE Algorithms Registry indices.
registry to be used must be mapable to a TPM_ALG_ID value."; Every index of this registry to be used must be mapable to a
TPM_ALG_ID value.";
leaf COSE_Algorithm-value { leaf COSE_Algorithm-value {
type int32; type int32;
description description
"The TPM Algo ID."; "The TPM Algo ID.";
} }
} }
} }
} }
grouping attestation-key-identifier { grouping tpm12-attestation-key-identifier {
description
"A selector for a suitable key identifier for a TPM 1.2.";
choice key-identifier {
description
"Identifier for the attestation key to use for signing
attestation evidence.";
case public-key {
leaf pub-key-id {
type binary;
description
"The value of the identifier for the public key.";
}
}
case TSS_UUID {
description
"Use a YANG agent generated (and maintained) attestation
key UUID that complies with the TSS_UUID datatype of the TCG
Software Stack (TSS) Specification, Version 1.10 Golden,
August 20, 2003.";
container TSS_UUID-value {
description
"A detailed structure that is used to create the
TPM 1.2 native TSS_UUID as defined in the TCG Software
Stack (TSS) Specification, Version 1.10 Golden,
August 20, 2003.";
leaf ulTimeLow {
type uint32;
description
"The low field of the timestamp.";
}
leaf usTimeMid {
type uint16;
description
"The middle field of the timestamp.";
}
leaf usTimeHigh {
type uint16;
description
"The high field of the timestamp multiplexed with the
version number.";
}
leaf bClockSeqHigh {
type uint8;
description
"The high field of the clock sequence multiplexed with
the variant.";
}
leaf bClockSeqLow {
type uint8;
description
"The low field of the clock sequence.";
}
leaf-list rgbNode {
type uint8;
description
"The spatially unique node identifier.";
}
}
}
}
}
grouping tpm20-attestation-key-identifier {
description description
"A selector for a suitable key identifier."; "A selector for a suitable key identifier.";
choice key-identifier { choice key-identifier {
description description
"Identifier for the attestation key to use for signing "Identifier for the attestation key to use for signing
attestation evidence."; attestation evidence.";
case public-key { case public-key {
leaf pub-key-id { leaf pub-key-id {
type binary; type binary;
description description
skipping to change at page 10, line 46 skipping to change at page 13, line 45
key UUID."; key UUID.";
leaf uuid-value { leaf uuid-value {
type binary; type binary;
description description
"The UUID identifying the corresponding public key."; "The UUID identifying the corresponding public key.";
} }
} }
} }
} }
grouping tpm-name { grouping tpm-name {
description description
"In a system with multiple-TPMs get the data from a specific TPM "In a system with multiple-TPMs get the data from a specific TPM
identified by the name and physical-index."; identified by the name and physical-index.";
leaf tpm_name { leaf tpm_name {
type string; type string;
description description
"Name of the TPM or All"; "Name of the TPM or All";
} }
leaf tpm-physical-index { leaf tpm-physical-index {
if-feature ietfhw:entity-mib; if-feature ietfhw:entity-mib;
type int32 { type int32 {
range "1..2147483647"; range "1..2147483647";
} }
config false; config false;
description
"The entPhysicalIndex for the TPM.";
reference
"RFC 6933: Entity MIB (Version 4) - entPhysicalIndex";
}
}
grouping compute-node {
description
"In a distributed system with multiple compute nodes
this is the node identified by name and physical-index.";
leaf node-name {
type string;
description description
"Name of the compute node or All"; "The entPhysicalIndex for the TPM.";
} reference
leaf node-physical-index { "RFC 6933: Entity MIB (Version 4) - entPhysicalIndex";
if-feature ietfhw:entity-mib; }
type int32 { }
range "1..2147483647"; grouping compute-node {
} description
config false; "In a distributed system with multiple compute nodes
this is the node identified by name and physical-index.";
leaf node-name {
type string;
description description
"The entPhysicalIndex for the compute node."; "Name of the compute node or All";
reference }
"RFC 6933: Entity MIB (Version 4) - entPhysicalIndex"; leaf node-physical-index {
} if-feature ietfhw:entity-mib;
} type int32 {
grouping node-uptime { range "1..2147483647";
description }
"Uptime in seconds of the node."; config false;
leaf up-time { description
type uint32; "The entPhysicalIndex for the compute node.";
description reference
"Uptime in seconds of this node reporting its data"; "RFC 6933: Entity MIB (Version 4) - entPhysicalIndex";
} }
} }
grouping tpm12-pcr-info-short {
description
"This structure is for defining a digest at release when the only
information that is necessary is the release configuration.";
uses tpm12-pcr-selection;
leaf locality-at-release {
type uint8;
description
".This SHALL be the locality modifier required to release the
information (TPM 1.2 type TPM_LOCALITY_SELECTION)";
}
leaf digest-at-release {
type binary;
description
"This SHALL be the digest of the PCR indices and PCR values
to verify when revealing auth data (TPM 1.2 type
TPM_COMPOSITE_HASH).";
}
}
grouping tpm12-version {
description
"This structure provides information relative the version of
the TPM.";
list version {
description
"This indicates the version of the structure
(TPM 1.2 type TPM_STRUCT_VER). This MUST be 1.1.0.0.";
leaf major {
type uint8;
description
"Indicates the major version of the structure.
MUST be 0x01.";
}
leaf minor {
type uint8;
description
"Indicates the minor version of the structure.
MUST be 0x01.";
}
leaf revMajor {
type uint8;
description
"Indicates the rev major version of the structure.
MUST be 0x00.";
}
leaf revMinor {
type uint8;
description
"Indicates the rev minor version of the structure.
MUST be 0x00.";
}
}
}
grouping tpm12-quote-info-common {
description
"These statements are used in bot quote variants of the TPM 1.2";
leaf fixed {
type binary;
description
"This SHALL always be the string 'QUOT' or 'QUO2'
(length is 4 bytes).";
}
leaf external-data {
type binary;
description
"160 bits of externally supplied data, typically a nonce.";
}
leaf signature-size {
type uint32;
description
"The size of TPM 1.2 'signature' value.";
}
leaf signature {
type binary;
description
"Signature over SHA-1 hash of tpm12-quote-info2'.";
}
}
grouping tpm12-quote-info {
description
"This structure provides the mechanism for the TPM to quote the
current values of a list of PCRs (as used by the TPM_Quote2
command).";
uses tpm12-version;
leaf digest-value {
type binary;
description
"This SHALL be the result of the composite hash algorithm using
the current values of the requested PCR indices
(TPM 1.2 type TPM_COMPOSITE_HASH.)";
}
}
grouping tpm12-quote-info2 {
description
"This structure provides the mechanism for the TPM to quote the
current values of a list of PCRs
(as used by the TPM_Quote2 command).";
leaf tag {
type uint8;
description
"This SHALL be TPM_TAG_QUOTE_INFO2.";
}
uses tpm12-pcr-info-short;
}
grouping tpm12-cap-version-info {
description
"TPM returns the current version and revision of the TPM 1.2 .";
list TPM_PCR_COMPOSITE {
description
"The TPM 1.2 TPM_PCRVALUEs for the pcr-indices.";
uses tpm12-pcr-selection;
leaf value-size {
type uint32;
description
"This SHALL be the size of the 'tpm12-pcr-value' field
(not the number of PCRs).";
}
leaf-list tpm12-pcr-value {
type binary;
description
"The list of TPM_PCRVALUEs from each PCR selected in sequence
of tpm12-pcr-selection.";
}
list version-info {
description
"An optional output parameter from a TPM 1.2 TPM_Quote2.";
leaf tag {
type uint16;
description
"The TPM 1.2 version and revision
(TPM 1.2 type TPM_STRUCTURE_TAG).
This MUST be TPM_CAP_VERSION_INFO (0x0030)";
}
uses tpm12-version;
leaf spec-level {
type uint16;
description
"A number indicating the level of ordinals supported.";
}
leaf errata-rev {
type uint8;
description
"A number indicating the errata version of the
specification.";
}
leaf tpm-vendor-id {
type binary;
description
"The vendor ID unique to each TPM manufacturer.";
}
leaf vendor-specific-size {
type uint16;
description
"The size of the vendor-specific area.";
}
leaf vendor-specific {
type binary;
description
"Vendor specific information.";
}
}
}
}
grouping tpm12-pcr-composite {
description
"The actual values of the selected PCRs (a list of TPM_PCRVALUEs
(binary)and associated metadata for TPM 1.2.";
list TPM_PCR_COMPOSITE {
description
"The TPM 1.2 TPM_PCRVALUEs for the pcr-indices.";
uses tpm12-pcr-selection;
leaf value-size {
type uint32;
description
"This SHALL be the size of the 'tpm12-pcr-value' field
(not the number of PCRs).";
}
leaf-list tpm12-pcr-value {
type binary;
description
"The list of TPM_PCRVALUEs from each PCR selected in sequence
of tpm12-pcr-selection.";
}
}
}
grouping node-uptime {
description
"Uptime in seconds of the node.";
leaf up-time {
type uint32;
description
"Uptime in seconds of this node reporting its data";
}
}
identity log-type { identity log-type {
description description
"The type of logs available."; "The type of logs available.";
} }
identity bios { identity bios {
base log-type; base log-type;
description description
"Measurement log created by the BIOS/UEFI."; "Measurement log created by the BIOS/UEFI.";
} }
identity ima { identity ima {
base log-type; base log-type;
description description
"Measurement log created by IMA."; "Measurement log created by IMA.";
skipping to change at page 12, line 29 skipping to change at page 19, line 32
leaf log-type { leaf log-type {
type identityref { type identityref {
base log-type; base log-type;
} }
mandatory true; mandatory true;
description description
"The corresponding measurement log type identity."; "The corresponding measurement log type identity.";
} }
} }
grouping boot-event-log { grouping boot-event-log {
description description
"Defines an event log corresponding to the event that extended the PCR"; "Defines an event log corresponding to the event that extended the
leaf event-number { PCR";
leaf event-number {
type uint32; type uint32;
description description
"Unique event number of this event"; "Unique event number of this event";
} }
leaf event-type { leaf event-type {
type uint32;
description
"log event type";
}
leaf pcr-index {
type uint16;
description
"Defines the PCR index that this event extended";
}
list digest-list {
description "Hash of event data";
uses hash-algo;
leaf-list digest {
type binary;
description
"The hash of the event data";
}
}
leaf event-size {
type uint32; type uint32;
description description
"log event type"; "Size of the event data";
} }
leaf pcr-index { leaf-list event-data {
type uint16; type uint8;
description
"Defines the PCR index that this event extended";
}
list digest-list {
description "Hash of event data";
uses hash-algo;
leaf-list digest {
type binary;
description description
"The hash of the event data"; "the event data size determined by event-size";
} }
} }
leaf event-size {
type uint32;
description
"Size of the event data";
}
leaf-list event-data {
type uint8;
description
"the event data size determined by event-size";
}
}
grouping ima-event { grouping ima-event {
description
"Defines an hash log extend event for IMA measurements";
leaf event-number {
type uint64;
description
"Unique number for this event for sequencing";
}
leaf ima-template {
type string;
description
"Name of the template used for event logs
for e.g. ima, ima-ng";
}
leaf filename-hint {
type string;
description
"File that was measured";
}
leaf filedata-hash {
type binary;
description
"Hash of filedata";
}
leaf template-hash-algorithm {
type string;
description description
"Algorithm used for template-hash"; "Defines an hash log extend event for IMA measurements";
} leaf event-number {
leaf template-hash { type uint64;
type binary; description
description "Unique number for this event for sequencing";
" hash(filedata-hash, filename-hint)"; }
} leaf ima-template {
leaf pcr-index { type string;
description
"Name of the template used for event logs
for e.g. ima, ima-ng";
}
leaf filename-hint {
type string;
description
"File that was measured";
}
leaf filedata-hash {
type binary;
description
"Hash of filedata";
}
leaf template-hash-algorithm {
type string;
description
"Algorithm used for template-hash";
}
leaf template-hash {
type binary;
description
"hash(filedata-hash, filename-hint)";
}
leaf pcr-index {
type uint16; type uint16;
description description
"Defines the PCR index that this event extended"; "Defines the PCR index that this event extended";
} }
leaf signature { leaf signature {
type binary; type binary;
description description
"The file signature"; "The file signature";
} }
} }
grouping bios-event-log { grouping bios-event-log {
description description
"Measurement log created by the BIOS/UEFI."; "Measurement log created by the BIOS/UEFI.";
list bios-event-entry { list bios-event-entry {
key event-number; key event-number;
description description
"Ordered list of TCG described event log "Ordered list of TCG described event log
that extended the PCRs in the order they that extended the PCRs in the order they
were logged"; were logged";
skipping to change at page 15, line 26 skipping to change at page 22, line 28
container ima-event-logs { container ima-event-logs {
description description
"This is an index referencing the TCG Algorithm "This is an index referencing the TCG Algorithm
Registry based on TPM_ALG_ID."; Registry based on TPM_ALG_ID.";
uses ima-event-log; uses ima-event-log;
} }
} }
} }
} }
rpc tpm2-challenge-response-attestation { rpc tpm12-challenge-response-attestation {
description description
"This RPC accepts the input for TSS commands of the managed device. "This RPC accepts the input for TSS TPM 1.2 commands of the
ComponentIndex from the hardware manager YANG module to refer to managed device. ComponentIndex from the hardware manager YANG
dedicated TPM in composite devices, e.g. smart NICs, is still a module to refer to dedicated TPM in composite devices,
TODO."; e.g. smart NICs, is still a TODO.";
input { input {
container tpm2-attestation-challenge { container tpm1-attestation-challenge {
description
"This container includes every information element defined
in the reference challenge-response interaction model for
remote attestation. Corresponding values are based on
TPM 1.2 structure definitions";
uses tpm12-pcr-selection;
uses nonce;
uses tpm12-signature-scheme;
uses tpm12-attestation-key-identifier;
leaf add-version {
type boolean;
description
"Whether or not to include TPM_CAP_VERSION_INFO; if true,
then TPM_Quote2 must be used to create the response.";
}
uses tpm-name;
}
}
output {
list tpm12-attestation-response {
key tpm_name;
description
"The binary output of TPM 1.2 TPM_Quote/TPM_Quote2, including
the PCR selection and other associated attestation evidence
metadata";
uses tpm-name;
uses node-uptime;
uses compute-node;
uses tpm12-quote-info-common;
choice tpm12-quote {
mandatory true;
description
"Either a tpm12-quote-info or tpm12-quote-info2, depending
on whether TPM_Quote or TPM_Quote2 was used
(cf. input field add-verson).";
case tpm12-quote1 {
description
"BIOS/UEFI event logs";
uses tpm12-quote-info;
uses tpm12-pcr-composite;
}
case tpm12-quote2 {
description
"BIOS/UEFI event logs";
uses tpm12-quote-info2;
}
}
}
}
}
rpc tpm20-challenge-response-attestation {
description
"This RPC accepts the input for TSS TPM 2.0 commands of the
managed device. ComponentIndex from the hardware manager YANG
module to refer to dedicated TPM in composite devices,
e.g. smart NICs, is still a TODO.";
input {
container tpm20-attestation-challenge {
description description
"This container includes every information element defined "This container includes every information element defined
in the reference challenge-response interaction model for in the reference challenge-response interaction model for
remote attestation. Corresponding values are based on remote attestation. Corresponding values are based on
TPM 2.0 structure definitions"; TPM 2.0 structure definitions";
uses pcr-selection; uses tpm20-pcr-selection;
uses nonce; uses nonce;
uses signature-scheme; uses tpm20-signature-scheme;
uses attestation-key-identifier; uses tpm20-attestation-key-identifier;
} }
list tpms {
key tpm_name;
description
"TPMs to fetch the attestation information.";
uses tpm-name; uses tpm-name;
}
} }
output { output {
list tpm2-attestation-response { list tpm20-attestation-response {
key tpm_name; key tpm_name;
description description
"The binary output of TPM2b_Quote. An TPMS_ATTEST structure "The binary output of TPM2b_Quote. An TPMS_ATTEST structure
including a length, encapsulated in a signature"; including a length, encapsulated in a signature";
uses tpm-name; uses tpm-name;
uses node-uptime; uses node-uptime;
uses compute-node; uses compute-node;
container tpms-attest { container tpms-attest {
leaf pcrdigest { leaf pcrdigest {
type binary; type binary;
description description
"split out value of TPMS_QUOTE_INFO for convenience"; "split out value of TPMS_QUOTE_INFO for convenience";
} }
leaf tpms-attest-result { leaf tpms-attest-result {
type binary; type binary;
description description
"The complete TPM generate structure including signature."; "The complete TPM generate structure including
signature.";
} }
leaf tpms-attest-result-length { leaf tpms-attest-result-length {
type uint32; type uint32;
description description
"Length of attest result provided by the TPM structure."; "Length of attest result provided by the TPM structure.";
} }
description description
"A composite of value and length and list of selected "A composite of value and length and list of selected
pcrs (original name: [type]attested)"; pcrs (original name: [type]attested)";
} }
leaf tpmt-signature { leaf tpmt-signature {
type binary; type binary;
description description
"Split out value of the signature for convenience. TODO: check for length values that complent binary value data node leafs."; "Split out value of the signature for convenience.
TODO: check for length values that complent binary value
data node leafs.";
} }
} }
} }
} }
rpc basic-trust-establishment { rpc basic-trust-establishment {
description description
"This RPC creates a tpm-resident, non-migratable key to be used "This RPC creates a tpm-resident, non-migratable key to be used
in TPM_Quote commands, an attestation certificate."; in TPM_Quote commands, an attestation certificate.";
input { input {
uses nonce; uses nonce;
skipping to change at page 16, line 43 skipping to change at page 25, line 15
} }
} }
} }
rpc basic-trust-establishment { rpc basic-trust-establishment {
description description
"This RPC creates a tpm-resident, non-migratable key to be used "This RPC creates a tpm-resident, non-migratable key to be used
in TPM_Quote commands, an attestation certificate."; in TPM_Quote commands, an attestation certificate.";
input { input {
uses nonce; uses nonce;
uses signature-scheme; uses tpm20-signature-scheme;
uses tpm-name; uses tpm-name;
leaf certificate-name { leaf certificate-name {
type string; type string;
description description
"An arbitrary name for the identity certificate chain requested."; "An arbitrary name for the identity certificate chain
requested.";
} }
} }
output { output {
list attestation-certificates { list attestation-certificates {
key tpm_name; key tpm_name;
description
"Attestation Certificate data from a TPM identified by the TPM name";
uses tpm-name;
uses node-uptime;
uses compute-node;
leaf certificate-name {
type string;
description
"An arbitrary name for this identity certificate or certificate chain.";
}
leaf attestation-certificate {
description description
"The binary signed certificate chain data for this identity certificate."; "Attestation Certificate data from a TPM identified by the TPM
type ietfct:end-entity-cert-cms; name";
uses tpm-name;
uses node-uptime;
uses compute-node;
leaf certificate-name {
type string;
description
"An arbitrary name for this identity certificate or
certificate chain.";
}
leaf attestation-certificate {
type ietfct:end-entity-cert-cms;
description
"The binary signed certificate chain data for this identity
certificate.";
}
uses tpm20-attestation-key-identifier;
} }
uses attestation-key-identifier;
}
} }
} }
rpc log-retrieval { rpc log-retrieval {
description description
"Logs Entries are either identified via indices or via providing "Logs Entries are either identified via indices or via providing
the last line received. The number of lines returned can be limited. the last line received. The number of lines returned can be
The type of log is a choice that can be limited. The type of log is a choice that can be augmented.";
augmented.";
input { input {
list log-selector { list log-selector {
key node-name; key node-name;
description description
"Selection of log entries to be reported."; "Selection of log entries to be reported.";
uses compute-node; uses compute-node;
choice index-type { choice index-type {
description description
"Last log entry received, log index number, or timestamp."; "Last log entry received, log index number, or timestamp.";
case last-entry { case last-entry {
description description
"The last entry of the log already retrieved."; "The last entry of the log already retrieved.";
leaf last-entry-value { leaf last-entry-value {
description
"Content of an log event which matches 1:1 with a
unique event record contained within the log. Log
entries subsequent to this will be passed to the
requestor. Note: if log entry values are not unique,
this MUST return an error.";
type binary; type binary;
description
"Content of an log event which matches 1:1 with a
unique event record contained within the log. Log
entries subsequent to this will be passed to the
requester. Note: if log entry values are not unique,
this MUST return an error.";
} }
} }
case index { case index {
description description
"Numeric index of the last log entry retrieved, or zero."; "Numeric index of the last log entry retrieved, or zero.";
leaf index-number { leaf index-number {
description
"The numeric index number of a log entry. Zero means
to start at the beginning of the log. Entries
subsequent to this will be passed to the
requestor.";
type uint64; type uint64;
description
"The numeric index number of a log entry. Zero means
to start at the beginning of the log. Entries
subsequent to this will be passed to the
requester.";
} }
} }
case timestamp { case timestamp {
leaf timestamp { leaf timestamp {
type yang:date-and-time; type yang:date-and-time;
description description
"Timestamp from which to start the extraction. The next "Timestamp from which to start the extraction. The next
log entry subsequent to this timestamp is to be sent."; log entry subsequent to this timestamp is to be sent.";
} }
description description
"Timestamp from which to start the extraction."; "Timestamp from which to start the extraction.";
} }
} }
} }
uses log-identifier; uses log-identifier;
uses pcr-selection; uses tpm20-pcr-selection;
leaf log-entry-quantity { leaf log-entry-quantity {
type uint16; type uint16;
description description
"The number of log entries to be returned. If omitted, it "The number of log entries to be returned. If omitted, it
means all of them."; means all of them.";
} }
} }
output { output {
container system-event-logs { container system-event-logs {
description description
"The requested data of the measurement event logs"; "The requested data of the measurement event logs";
list node-data { list node-data {
key node-name; key "node-name tpm_name";
description description
"Event logs of a node in a distributed system "Event logs of a node in a distributed system
identified by the node name"; identified by the node name";
uses compute-node; uses compute-node;
uses node-uptime; uses node-uptime;
list tpm-updated { uses tpm-name;
key tpm_name; container log-result {
description description
"TPM these events may have recorded data in"; "The requested entries of the corresponding log.";
uses tpm-name; uses event-logs;
} }
container log-result { }
description }
"The requested entries of the corresponding log."; }
uses event-logs; }
}
}
}
}
}
container rats-support-structures { container rats-support-structures {
config false;
description
"The datastore definition enabling verifiers or relying
parties to discover the information necessary to use the
remote attestation RPCs appropriately.";
leaf-list supported-algos { leaf-list supported-algos {
type uint16; type uint16;
description description
"Supported TPM_ALG_ID values for the TPM in question. "Supported TPM_ALG_ID values for the TPM in question.
Will include ComponentIndex soon."; Will include ComponentIndex soon.";
} }
list tpms { list tpms {
key tpm_name; key tpm_name;
uses tpm-name; uses tpm-name;
description description
"A list of TPMs in this composite "A list of TPMs in this composite
device that rats can be conducted with."; device that rats can be conducted with.";
list certificates {
description
"The TPM's endorsement-certificate.";
container certificate {
leaf certificate-name {
type string;
description
"An arbitrary name for this identity certificate or
certificate chain.";
}
leaf certificate-type {
type enumeration {
enum endorsement-cert {
value 0;
description
"EK Cert type.";
}
enum attestation-cert {
value 1;
description
"AK Cert type.";
}
}
description "Type of this certificate";
}
leaf certificate-value {
type ietfct:end-entity-cert-cms;
description
"The binary signed public endorsement key (EK),
attestation key(AK) and corresponding assertions
(EK,AK Certificate). In a TPM 2.0 the EK,AK Certificate
resides in a well-defined NVRAM location by the TPM
vendor.";
}
description
"Two kinds of certificates can be accessed via this
statement. An Attestation Key Certificate and a
Endorsement Key Certificate.";
}
}
} }
list compute-nodes { list compute-nodes {
key node-name; key node-name;
uses compute-node; uses compute-node;
description description
"A list names of hardware components in this composite "A list names of hardware components in this composite
device that rats can be conducted with."; device that rats can be conducted with.";
}
container endorsement-certificates {
list certificate {
key tpm_name;
uses tpm-name;
description
"The TPM's endorsement-certificate.";
leaf endorsement-certificate {
type binary;
mandatory true;
description
"The signed pulic endorsement key (EK) and corresponding claims
(EK Certificate). In a TPM 2.0 the EK Certificate resides in a
well-defined NVRAM location by the TPM vednor.";
}
}
description
"Basic information elements to enable RATS.";
} }
config false;
} }
} }
<CODE ENDS> <CODE ENDS>
3. IANA considerations 3. IANA considerations
This document will include requests to IANA: This document will include requests to IANA:
To be defined yet. To be defined yet.
skipping to change at page 21, line 4 skipping to change at page 29, line 44
o Relabeled location with compute-node or tpm-name where appropriate o Relabeled location with compute-node or tpm-name where appropriate
o Added a valid entity-mib physical-index to compute-node and tpm- o Added a valid entity-mib physical-index to compute-node and tpm-
name to map it back to hardware inventory name to map it back to hardware inventory
o Relabeled name to tpm_name o Relabeled name to tpm_name
o Removed event-string in last-entry o Removed event-string in last-entry
7. References 7. References
7.1. Normative References 7.1. Normative References
[I-D.birkholz-reference-ra-interaction-model] [I-D.birkholz-rats-reference-interaction-model]
Birkholz, H. and M. Eckel, "Reference Interaction Model Birkholz, H. and M. Eckel, "Reference Interaction Model
for Challenge-Response-based Remote Attestation", draft- for Challenge-Response-based Remote Attestation", draft-
birkholz-reference-ra-interaction-model-01 (work in birkholz-rats-reference-interaction-model-00 (work in
progress), January 2019. progress), March 2019.
[I-D.ietf-netconf-crypto-types] [I-D.ietf-netconf-crypto-types]
Watsen, K. and H. Wang, "Common YANG Data Types for Watsen, K. and H. Wang, "Common YANG Data Types for
Cryptography", draft-ietf-netconf-crypto-types-05 (work in Cryptography", draft-ietf-netconf-crypto-types-10 (work in
progress), March 2019. progress), July 2019.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997, DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>. <https://www.rfc-editor.org/info/rfc2119>.
7.2. Informative References 7.2. Informative References
[I-D.birkholz-attestation-terminology] [I-D.birkholz-attestation-terminology]
Birkholz, H., Wiseman, M., and H. Tschofenig, "Reference Birkholz, H., Wiseman, M., and H. Tschofenig, "Reference
skipping to change at page 21, line 41 skipping to change at page 30, line 34
Henk Birkholz Henk Birkholz
Fraunhofer SIT Fraunhofer SIT
Rheinstrasse 75 Rheinstrasse 75
Darmstadt 64295 Darmstadt 64295
Germany Germany
Email: henk.birkholz@sit.fraunhofer.de Email: henk.birkholz@sit.fraunhofer.de
Michael Eckel Michael Eckel
Huawei Technologies Fraunhofer SIT
Feldbergstrasse 78 Rheinstrasse 75
Darmstadt 64293 Darmstadt 64295
Germany Germany
Email: michael.eckel@huawei.com Email: michael.eckel@sit.fraunhofer.de
Shwetha Bhandari Shwetha Bhandari
Cisco Systems Cisco Systems
Email: shwethab@cisco.com Email: shwethab@cisco.com
Bill Sulzen Bill Sulzen
Cisco Systems Cisco Systems
Email: bsulzen@cisco.com Email: bsulzen@cisco.com
Eric Voit Eric Voit
Cisco Systems Cisco Systems
Email: evoit@cisco.com Email: evoit@cisco.com
Liang Xia (Frank)
Huawei Technologies
101 Software Avenue, Yuhuatai District
Nanjing, Jiangsu 210012
China
Email: Frank.Xialiang@huawei.com
Tom Laffey
Hewlett Packard Enterprise
Email: tom.laffey@hpe.com
Guy C. Fedorkow Guy C. Fedorkow
Juniper Networks Juniper Networks
10 Technology Park Drive 10 Technology Park Drive
Westford, Massachusetts 01886 Westford, Massachusetts 01886
Email: gfedorkow@juniper.de Email: gfedorkow@juniper.net
 End of changes. 91 change blocks. 
290 lines changed or deleted 740 lines changed or added

This html diff was produced by rfcdiff 1.47. The latest version is available from http://tools.ietf.org/tools/rfcdiff/