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Team meeting Oct 27, 2011

Team meeting Oct 27, 2011. Bart Coppens. Program differences can be observed. Version 1. Version 2. Security hole fixed New features Watermarks. What changed?. Other way to improve false rates. movl $ 0x0,0x4(% esp ) movl $0x0,0xc(% esp) movl $0x0,0x8(%esp ) movl $0x0,0x4(%esp)

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Team meeting Oct 27, 2011

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  1. Team meetingOct27, 2011 Bart Coppens

  2. Program differencescan be observed Version 1 Version 2 • Security hole fixed • New features • Watermarks What changed?

  3. Other way to improve false rates movl $0x0,0x4(%esp) movl$0x0,0xc(%esp) movl$0x0,0x8(%esp) movl$0x0,0x4(%esp) movl$0x80bb72c,(%esp) call 0x804fc50 <joy> Change detected Expand area Count adjacent changes movl $0x0,0x4(%esp) movl$0x0,0xc(%esp) movl$0x0,0x8(%esp) movl$0x0,0x4(%esp) movl$0x80bb72c,(%esp) call 0x804fc50 <joy> movl $0x0,0x4(%esp) movl$0x0,0xc(%esp) movl$0x0,0x8(%esp) movl$0x0,0x4(%esp) movl$0x80bb72c,(%esp) call 0x804fc50 <joy>

  4. Does it work? Significantly wider On average 2 instructions wide • Not a problem for small patches • For the larger patches, like png beta, it is

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