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			31 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| These numbers are for 32 iterations ("$2a$05"):
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| 
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| 			OpenBSD 3.0 bcrypt(*)	crypt_blowfish 0.4.4
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| Pentium III, 840 MHz	99 c/s			121 c/s (+22%)
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| Alpha 21164PC, 533 MHz	55.5 c/s		76.9 c/s (+38%)
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| UltraSparc IIi, 400 MHz	49.9 c/s		52.5 c/s (+5%)
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| Pentium, 120 MHz	8.8 c/s			20.1 c/s (+128%)
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| PA-RISC 7100LC, 80 MHz	8.5 c/s			16.3 c/s (+92%)
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| 
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| (*) built with -fomit-frame-pointer -funroll-loops, which I don't
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| think happens for libcrypt.
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| 
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| Starting with version 1.1 released in June 2011, default builds of
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| crypt_blowfish invoke a quick self-test on every hash computation.
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| This has roughly a 4.8% performance impact at "$2a$05", but only a 0.6%
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| impact at a more typical setting of "$2a$08".
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| 
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| The large speedup for the original Pentium is due to the assembly
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| code and the weird optimizations this processor requires.
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| 
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| The numbers for password cracking are 2 to 10% higher than those for
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| crypt_blowfish as certain things may be done out of the loop and the
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| code doesn't need to be reentrant.
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| 
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| Recent versions of John the Ripper (1.6.25-dev and newer) achieve an
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| additional 15% speedup on the Pentium Pro family of processors (which
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| includes Pentium III) with a separate version of the assembly code and
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| run-time CPU detection.
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| 
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| $Owl: Owl/packages/glibc/crypt_blowfish/PERFORMANCE,v 1.6 2011/06/21 12:09:20 solar Exp $
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