keygen.h

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/****************************************************************************
*                                                                           *
*                   cryptlib PKC Keygen Header File                         *
*                   Copyright Peter Gutmann 1997-2004                       *
*                                                                           *
****************************************************************************/

#ifndef _KEYGEN_DEFINED

#define _KEYGEN_DEFINED

/* The number of iterations of Miller-Rabin for an error probbility of
   (1/2)^80, from HAC */

#define getNoPrimeChecks( noBits ) \
    ( ( noBits < 150 ) ? 18 : ( noBits < 200 ) ? 15 : \
      ( noBits < 250 ) ? 12 : ( noBits < 300 ) ? 9 : \
      ( noBits < 350 ) ? 8 : ( noBits < 400 ) ? 7 : \
      ( noBits < 500 ) ? 6 : ( noBits < 600 ) ? 5 : \
      ( noBits < 800 ) ? 4 : ( noBits < 1250 ) ? 3 : 2 )

/* Prototypes for functions in kg_prime.c */

CHECK_RETVAL_BOOL STDC_NONNULL_ARG( ( 1 ) ) \
BOOLEAN primeSieve( const BIGNUM *candidate );
CHECK_RETVAL STDC_NONNULL_ARG( ( 1, 2 ) ) \
int primeProbable( INOUT PKC_INFO *pkcInfo, 
                   INOUT BIGNUM *n, 
                   IN_RANGE( 1, 100 ) const int noChecks );
CHECK_RETVAL STDC_NONNULL_ARG( ( 1, 2 ) ) \
int generatePrime( INOUT PKC_INFO *pkcInfo, 
                   INOUT BIGNUM *candidate, 
                   IN_LENGTH_SHORT_MIN( 120 ) const int noBits, 
                   IN_INT_OPT const long exponent );

#endif /* _KEYGEN_DEFINED */