Commit ce2c95b2 authored by Mark J. Cox's avatar Mark J. Cox
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Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). The 

problem was that one of the replacement routines had not been working since
SSLeay releases.  For now the offending routine has been replaced with
non-optimised assembler.  Even so, this now gives around 95% performance
improvement for 1024 bit RSA signs.
parent b05eaeb5

CHANGES

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 Changes between 0.9.4 and 0.9.5  [xx XXX 1999]



  *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).  The

     problem was that one of the replacement routines had not been working since

     SSLeay releases.  For now the offending routine has been replaced with

     non-optimised assembler.  Even so, this now gives around 95% performance

     improvement for 1024 bit RSA signs.

     [Mark Cox]



  *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 

     handling. Most clients have the effective key size in bits equal to

     the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.

Configure

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# Dec Alpha, OSF/1 - the alpha164-cc is the flags for a 21164A with

# the new compiler

# For gcc, the following gave a %50 speedup on a 164 over the 'DES_INT' version

"alpha-gcc","gcc:-O3::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_UNROLL DES_RISC1:::",

"alpha-cc", "cc:-std1 -tune host -O4 -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK:::",

"alpha164-cc", "cc:-std1 -tune host -fast -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK:::",

"alpha-gcc","gcc:-O3::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_UNROLL DES_RISC1:asm/alpha.o::",

"alpha-cc", "cc:-std1 -tune host -O4 -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK:asm/alpha.o::",

"alpha164-cc", "cc:-std1 -tune host -fast -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK:asm/alpha.o::",

"FreeBSD-alpha","gcc:-DTERMIOS -O3 -fomit-frame-pointer::(unknown)::SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_PTR DES_RISC2:::",



# assembler versions -- currently defunct:

##"alpha-gcc","gcc:-O3::(unknown)::SIXTY_FOUR_BIT_LONG DES_UNROLL DES_RISC1:asm/alpha.o::",

##"alpha-cc", "cc:-tune host -O4 -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",

##"alpha164-cc", "cc:-tune host -fast -readonly_strings::(unknown)::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",

##"OpenBSD-alpha","gcc:-DTERMIOS -O3 -fomit-frame-pointer::(unknown):SIXTY_FOUR_BIT_LONG DES_INT DES_PTR DES_RISC2:asm/alpha.o::",



# The intel boxes :-), It would be worth seeing if bsdi-gcc can use the

crypto/bn/asm/alpha.s

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