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Red Hat Bugzilla – Attachment 863088 Details for
Bug 1018327
ipsec.conf man page lacks example for AES-GCM configuration
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replacement phase2alg.xml
phase2alg.xml (text/xml), 1.52 KB, created by
Paul Wouters
on 2014-02-14 04:15:40 UTC
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Description:
replacement phase2alg.xml
Filename:
MIME Type:
Creator:
Paul Wouters
Created:
2014-02-14 04:15:40 UTC
Size:
1.52 KB
patch
obsolete
> <varlistentry> > <term><emphasis remap='B'>phase2alg</emphasis></term> > <listitem> ><para> Specifies the algorithms that will be offered/accepted for a phase2 >negotiation. If not specified, a secure set of defaults will be used. Sets >are separated using comma's. ></para> ><para>The default values are the same as for ike= >Note also that not all ciphers available to the kernel (eg through CryptoAPI) >are necessarilly supported here.</para> ><para> The format for ESP is ENC-AUTH followed by an optional PFSgroup. For >instance, "3des-md5" or "aes256-sha1;modp2048" or "aes-sha1,aes-md5". ></para> ><para>For RFC-5114 DH groups, use the "dh" keyword, eg "aes256-sha1;dh23" ></para> ><para> The format for AH is AUTH followed by an optional PFSgroup. For >instance, "md5" or "sha1;modp1536". ></para> ><para>AES-GCM and AES-CCM use the syntax like >"phase2alg=aes_ccm_c-256-null". The only supported key sizes are 128, >192 and 256. The subscript (_a, _b and _c) stand for the ICV versions >(8,12,16). It is recommended to migrate to the _c versions, as support >for smaller ICV's will be removed in the future.</para> ><para>Note that openswan and versions of libreswan up to 3.6 require >adding the salt size to the key size. Therefor, to interop with an older >version of openswan or libreswan, use: "phase2alg=aes_ccm_c-280-null". For >CCM, the 'keysize' needs to be increased by 24, resulted in valid keysizes >of 152, 215 and 280. For GCM the 'keysize' needs to be increased by 32, >resulting valid 'keysizes' of 160, 224 and 288. ></para> > </listitem> > </varlistentry>
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bug 1018327
: 863088