Using Resource Certificates Progress Report on the Trial of Resource Certification
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1 Using Resource Certificates Progress Report on the Trial of Resource Certification October 2006 Geoff Huston APNIC
2 Sound Familiar? 4:30 pm Mail: Geoff, mate, I ve been dealing with your phone people and I m getting nowhere could you route xxx/24 for me this afternoon? I ve got a customer on my back and I need this done by 5 today, and I m getting desperate.
3 Sound Familiar? 4:30 pm Mail: Geoff, mate, I ve been dealing with your phone people and I m getting nowhere could you route xxx/24 for me this afternoon? I ve got a customer on my back and I need this done by 5 today, and I m getting desperate. 7:00pm Trouble Ticket: Customer complaining that they have been disconnected. The circuit is up, but the customer is complaining that there is no traffic.
4 Sound Familiar? 4:30 pm Mail: Geoff, mate, I ve been dealing with your phone people and I m getting nowhere could you route xxx/24 for me this afternoon? I ve got a customer on my back and I need this done by 5 today, and I m getting desperate. 7:00pm Trouble Ticket: Customer complaining that they have been disconnected. The circuit is up, but the customer is complaining that there is no traffic. 9:30 am Mail: Product Manager: We ve had a complaint with a customer threatening legal action over some kind of address dispute. We have a call with legal this afternoon at 2:00 details below.
5 If only. I could ve quickly and accurately figured out who really had the right-of-use of the address block at the time I could ve asked for a signed route origination that gave me (ASx) an authority to route prefix xxx that I could validate independently
6 Motivation: Address and Routing Security The (very) basic routing security questions that need to be answered are: Is this a valid address prefix? Who advertised this address prefix into the network? Did they have the necessary credentials to advertise this address prefix? Is the advertised path authentic?
7 What would be good To be able to use a reliable infrastructure to validate assertions about addresses and their use: Allow third parties to authenticate that an address or routing assertion was made by the current right-of-use holder of the address resource Confirm that the asserted information is complete and unaltered from the original Convey routing authorities from the resource holder to a nominated party that cannot be altered or forged
8 What would be good Is to have a reliable, efficient, and effective way to underpin the integrity of the Internet s address resource distribution structure and our use of these resources in the operational Internet Is to replace various forms of risk-prone assertions, rumours and fuzzy traditions about addresses and their use with demonstrated validated authority
9 Resource Certificate Trial Approach: Use X.509 v3 Public Key Certificates (RFC3280) with IP address and ASN extensions (RFC3779) Parameters: Use existing technologies where possible Leverage on existing open source software tools and deployed systems Contribute to open source solutions and open standards OpenSSL as the foundational platform Add RFC3779 (resource extension) support Design of a Certification framework anchored on the IP resource distribution function
10 Resource Public Key Certificates The certificate s Issuer certifies that: the certificate s Subject whose public key is contained in the certificate is the current controller of a collection of IP address and AS resources that are listed in the certificate s resource extension
11 Resource Certificates Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC LIR1 LIR2 ISP ISP ISP ISP ISP ISP ISP
12 Resource Certificates Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates match allocation actions LIR1 LIR2 ISP ISP ISP ISP ISP ISP ISP
13 Resource Certificates Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issuer: ARIN Subject: LIR2 Resources: /16 Key Info: <lir2-key-pub> LIR1 LIR2 Signed: <arin-key-priv> Issued Certificates ISP ISP ISP ISP4 ISP ISP ISP
14 Resource Certificates Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issuer: ARIN Subject: LIR2 Resources: /16 Key Info: <lir2-key-pub> LIR1 LIR2 Signed: <arin-key-priv> Issuer: LIR2 Subject: ISP4 Resources: /24 Key Info: <isp4-key-pub> ISP Signed: <lir2-key-priv> ISP ISP ISP4 ISP ISP ISP Issued Certificates
15 Resource Certificates Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issuer: ARIN Subject: LIR2 Resources: /16 Key Info: <lir2-key> Signed: <arin-key-priv> LIR1 LIR2 Issuer: LIR2 Subject: ISP4 Resources: Issuer: ISP /22 Key Subject: Info: <isp4-key> ISP4-EE ISP ISP Signed: Resources: <lir2-key-priv> /24 ISP ISP4 ISP ISP ISP Key Info: <isp4-ee-key> Signed: <isp4-key-priv> Issued Certificates
16 Base Object in a Routing Authority Context Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates LIR1 LIR2 Route Origination Authority ISP4 permits AS65000 to to originate a route for for the the ISPprefix ISP ISP ISP4 ISP ISP ISP /24
17 Signed Objects Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates Route Origination Authority LIR1 ISP4 permits AS65000 to to originate a route for for the the prefix /24 LIR2 Attachment: <isp4-ee-cert> ISP ISP ISP ISP4 ISP ISP ISP Signed, ISP4 <isp4-ee-key-priv>
18 Signed Object Validation Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates Route Origination Authority LIR1 ISP4 permits AS65000 to to originate a route for for the the prefix /24 LIR2 Attachment: <isp4-ee-cert> ISP ISP ISP ISP4 ISP ISP ISP 1. Did the matching private key sign this text? Signed, ISP4 <isp4-ee-key-priv>
19 Signed Object Validation Resource Allocation Hierarchy IANA AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates Route Origination Authority LIR1 ISP4 permits AS65000 to to originate a route for for the the prefix /24 LIR2 Attachment: <isp4-ee-cert> ISP ISP ISP ISP4 ISP ISP ISP Signed, ISP4 <isp4-ee-key-priv> 2. Is this certificate valid?
20 Signed Object Validation Resource Allocation Hierarchy IANA ARIN Trust Anchor AFRINIC APNIC RIPE NCC ARIN LACNIC Issued Certificates Route Origination Authority LIR1 ISP4 permits AS65000 to to originate a route for for the the prefix /24 LIR2 Attachment: <isp4-ee-cert> ISP ISP ISP ISP4 ISP ISP ISP Signed, 3. Is there a valid certificate path from a Trust Anchor ISP4 <isp4-ee-key-priv> to this certificate?
21 Signed Object Validation Resource Allocation Hierarchy IANA RIPE NCC Trust Anchor Validation Outcomes AFRINIC APNIC RIPE NCC ISP4 authorized ARIN this this Authority LACNIC document 2. Issued Certificates /24 is is a valid valid address ISP4 holds a current right-of-use of of Route Origination Authority LIR LIR /24 ISP4 permits AS65000 to to A route object where AS65000 originate a route for for the the prefix originates an an advertisement for for the the /24 address prefix /24 has has the the explicit authority of of ISP4, who who is is Attachment: <isp4-ee-cert> the ISP ISP the current ISP holder ISP4 of ISP of this ISP this address ISP prefix Signed, ISP4 <isp4-ee-key-priv>
22 What could you do with Resource Certificates? Issue signed subordinate resource certificates for any sub-allocations of resources, such as may be seen in a LIR context Maintain a certificate collection that matches the current resource allocation state LIR ISP
23 What could you do with Resource Certificates? Sign routing authorities, routing requests, or WHOIS objects or IR objects with your private key Use the private key to sign attestations with a signature that is associated with a right-of-use of a resource Route Origination Authority LIR1 ISP4 permits AS65000 to to originate a route for for the the prefix /24 Attachment: <isp4-ee-cert> ISP ISP ISP4 Signed, ISP4 <isp4-ee-key-priv>
24 What could you do with Resource Certificates? Validate signed objects Authentication: Did the resource holder really produce this document or object? Authenticity: Is the document or object in exactly the same state as it was when originally signed? Validity: Is the document valid today? A relying party can: authenticate that the signature matches the signed object, validate the signature against the matching certificate s public key, validate the certificate in the context of the Resource PKI
25 Example of a Signed Object route-set: RS-TELSTRA-AU-EX1 descr: Example routes for customer with space under apnic members: , /24 tech-c: GM85-AP admin-c: GM85-AP notify: test@telstra.net mnt-by: MAINT-AU-TELSTRA-AP sigcert: rsync://repository.apnic.net/telstra-au-iana/cbh3sk-iwj8yd8uqab5 Ck010p5Q/Hc4yxwhTamNXW-cDWtQcmvOVGjU.cer sigblk: -----BEGIN PKCS MIIBdQYJKoZIhvcNAQcCoIIBZjCCAWICAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3 DQEHATGCAUEwggE9AgEBMBowFTETMBEGA1UEAxMKdGVsc3RyYS1hdQIBATAJBgUr DgMCGgUAMA0GCSqGSIb3DQEBAQUABIIBAEZGI2dAG3lAAGi+mAK/S5bsNrgEHOmN 1leJF9aqM+jVO+tiCvRHyPMeBMiP6yoCm2h5RCR/avP40U4CC3QMhU98tw2Bq0TY HZvqXfAOVhjD4Apx4KjiAyr8tfeC7ZDhO+fpvsydV2XXtHIvjwjcL4GvM/gES6dJ KJYFWWlrPqQnfTFMm5oLWBUhNjuX2E89qyQf2YZVizITTNg3ly1nwqBoAqmmDhDy +nsrvaxax7ii2iqdtr/pji2vwfe4r36gbt8oxyvj9xz7i9ikpb8rtvpv02i2hbmi 1SvRXMx5nQOXyYG3Pcxo/PAhbBkVkgfudLki/IzB3j+4M8KemrnVMRo= -----END PKCS changed: test@telstra.net source: APNIC
26 Signer s certificate Version: 3 Serial: 1 Issuer: CN=telstra-au Validity: Not Before: Fri Aug 18 04:46: GMT Validity: Not After: Sat Aug 18 04:46: GMT Subject: CN=An example sub-space from Telstra IANA, E=apnic-ca@apnic.net Subject Key Identifier g(ski): Hc4yxwhTamNXW-cDWtQcmvOVGjU Subject Info Access: carepository rsync://repository.apnic.net/telstra-au-iana/cbh3sk-iwj8yd8uqab5 Ck010p5Q/Hc4yxwhTamNXW-cDWtQcmvOVGjU Key Usage: DigitalSignature, nonrepudiation CRL Distribution Points: rsync://repository.apnic.net/telstra-au-iana/cbh3sk-iwj8yd8uqab5 Ck010p5Q.crl Authority Info Access: caissuers rsync://repository.apnic.net/telstra-au-iana/cbh3sk-iwj8yd8uqab5 Ck010p5Q.cer Authority Key Identifier: Key Identifier g(aki): cbh3sk-iwj8yd8uqab5ck010p5q Certificate Policies: IPv4: , /24
27 Potential Scenarios Service interface via a Web Portal: Generate and Sign routing-related objects Validate signed objects against the PKI Manage subordinate certificate issuance (Automated certificate management processes) Local Tools LIR Use Local repository management Resource object signing Generate and lodge certificate objects
28 Resource Certificate Trial Program Specification of X.509 Resource Certificates Generation of resource certificate repositories aligned with existing resource allocations and assignments Tools for Registration Authority / Certificate Authority interaction (undertaken by RIPE NCC) Tools to perform validation of resource certificates Current Activities Extensions to OpenSSL for Resource Certificates (open source development activity, supported by ARIN) Tools for resource collection management, object signing and signed object validation (APNIC, and also open source development activity, supported by ARIN) LIR / ISP Tools for certificate management Operational service profile specification
29 Next Steps 1. Complete current trial activities by EOY APNIC Evaluation of Trial activities Status of work items Does this approach meet the objectives? What are the implications of this form of certification of resources? Impact assessment Service infrastructure, operational procedures Utility of the authentication model Policy considerations Recommendations for production deployment
30 Credit where credit is due.. The design and implementation team involved in this trial: George Michaelson Rob Loomans Geoff Huston Randy Bush Rob Austein Rob Kisteleki Steve Kent Russ Housley
31 Thank You Questions?
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