Re: [TLS] New Cached info draft
Marsh Ray <marsh@extendedsubset.com> Mon, 29 March 2010 15:47 UTC
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Date: Mon, 29 Mar 2010 10:47:29 -0500
From: Marsh Ray <marsh@extendedsubset.com>
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To: Stefan Santesson <stefan@aaa-sec.com>
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Cc: Adam Langley <agl@imperialviolet.org>, "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] New Cached info draft
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On 3/29/2010 5:36 AM, Stefan Santesson wrote: > Marsh and all, > > I would like to switch to FNV-1a. > The reason being that FNV-1 has the downside that the last octet only flips > bits in the lowest 8 bits of the digest value, while FNV-1a influence all 64 > bits (by changing the order of multiplication and XOR). > > See also: > http://sites.google.com/site/murmurhash/avalanche > > The pseudocode for FNV-1a is: > > digest = FNV_offset_basis > for each octet_of_data to be digested { > digest = digest XOR octet_of_data > digest = digest * FNV_prime } > return digest > > Could you run some test vectors also for FNV-1a? Sure, here's what I get from the new pseudocode. For input data: 0 bytes Digest is: CB F2 9C E4 84 22 23 25 8 bytes For input data: 0000 61 a 1 bytes Digest is: AF 63 DC 4C 86 01 EC 8C 8 bytes For input data: 0000 FF 00 00 01 .... 4 bytes Digest is: 69 61 19 64 91 CC 68 2D 8 bytes For input data: 0000 68 74 74 70 3A 2F 2F 65 6E 2E 77 69 6B 69 70 65 http://en.wikipe 0010 64 69 61 2E 6F 72 67 2F 77 69 6B 69 2F 46 6F 77 dia.org/wiki/Fow 0020 6C 65 72 5F 4E 6F 6C 6C 5F 56 6F 5F 68 61 73 68 ler_Noll_Vo_hash 48 bytes Digest is: D9 B9 57 FB 7F E7 94 C5 8 bytes - Marsh
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Stefan Santesson
- [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Kemp, David P.
- Re: [TLS] New Cached info draft Adam Langley
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Marsh Ray
- Re: [TLS] New Cached info draft Marsh Ray
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Simon Josefsson
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Adam Langley
- Re: [TLS] New Cached info draft Brian Smith
- Re: [TLS] New Cached info draft Brian Smith
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Martin Rex
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Brian Smith
- Re: [TLS] New Cached info draft Martin Rex
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Brian Smith
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Michael D'Errico
- Re: [TLS] New Cached info draft Marsh Ray
- Re: [TLS] New Cached info draft Brian Smith
- Re: [TLS] New Cached info draft Adam Langley
- Re: [TLS] New Cached info draft Stefan Santesson
- Re: [TLS] New Cached info draft Martin Rex
- Re: [TLS] New Cached info draft Martin Rex
- Re: [TLS] New Cached info draft Marsh Ray
- Re: [TLS] New Cached info draft Martin Rex