Add support for dynamically created and destroyed mutexes. This will

[openssl.git] / doc / crypto / bn.pod

diff --git a/doc/crypto/bn.pod b/doc/crypto/bn.pod
index 3d4840f09572f4c56f2dc6c5c9c496fc6f922e3c..1504a1c92dfd1de33519d64ba77e8621fbd29862 100644 (file)
--- a/doc/crypto/bn.pod
+++ b/doc/crypto/bn.pod
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-bn - Multiprecision integer arithmetics
+bn - multiprecision integer arithmetics
 
 =head1 SYNOPSIS
 
@@ -43,7 +43,7 @@ bn - Multiprecision integer arithmetics
  int BN_sub_word(BIGNUM *a, BN_ULONG w);
  int BN_mul_word(BIGNUM *a, BN_ULONG w);
  BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
- BN_ULONG BN_mod_word(BIGNUM *a, BN_ULONG w);
+ BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
 
  int BN_cmp(BIGNUM *a, BIGNUM *b);
  int BN_ucmp(BIGNUM *a, BIGNUM *b);
@@ -58,13 +58,13 @@ bn - Multiprecision integer arithmetics
  int BN_set_word(BIGNUM *a, unsigned long w);
  unsigned long BN_get_word(BIGNUM *a);
 
- int BN_rand(BIGNUM *rnd, int bits, int top,int bottom);
- int BN_pseudo_rand(BIGNUM *rnd, int bits, int top,int bottom);
+ int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
+ int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
 
- BIGNUM *BN_generate_prime(BIGNUM *ret,int bits,int safe,BIGNUM *add,
-         BIGNUM *rem,void (*callback)(int,int,void *),void *cb_arg);
- int BN_is_prime(BIGNUM *p,int nchecks,void (*callback)(int,int,void *),
-         BN_CTX *ctx,void *cb_arg);
+ BIGNUM *BN_generate_prime(BIGNUM *ret, int bits,int safe, BIGNUM *add,
+         BIGNUM *rem, void (*callback)(int, int, void *), void *cb_arg);
+ int BN_is_prime(const BIGNUM *p, int nchecks,
+         void (*callback)(int, int, void *), BN_CTX *ctx, void *cb_arg);
 
  int BN_set_bit(BIGNUM *a, int n);
  int BN_clear_bit(BIGNUM *a, int n);
@@ -132,42 +132,9 @@ random numbers, L<BN_generate_prime(3)|BN_generate_prime(3)> deals with prime
 numbers and L<BN_set_bit(3)|BN_set_bit(3)> with bit operations. The conversion
 of B<BIGNUM>s to external formats is described in L<BN_bn2bin(3)|BN_bn2bin(3)>.
 
-=head1 INTERNALS
-
-The following description is based on the SSLeay documentation:
-
- typedef struct bignum_st
-        {
-        int top;        /* Index of last used d. */
-        BN_ULONG *d;    /* Pointer to an array of 'BITS2' bit chunks. */
-        int max;        /* Size of the d array. */
-        int neg;
-        } BIGNUM;
-
-The big number is stored in B<d>, a malloc()ed array of B<BN_ULONG>s.
-A B<BN_ULONG> can be either 16, 32 or 64 bits in size, depending on
-the 'number of bits' specified in bn.h.
-
-B<max> is the size of the B<d> array that has been allocated.  B<top>
-is the 'last' entry being used, so for a value of 4, bn.d[0]=4 and
-bn.top=1. B<neg> is 1 if the number is negative.  When a BIGNUM is
-'0', the B<d> field can be NULL and B<top> == 0.  Various routines in
-this library require the use of temporary B<BIGNUM> variables during
-their execution.  Since dynamic memory allocation to create B<BIGNUM>s
-is rather expensive when used in conjunction with repeated subroutine
-calls, the B<BN_CTX> structure is used.  This structure contains
-B<BN_CTX_NUM> B<BIGNUM>s.  B<BN_CTX_NUM> is the maximum number of
-temporary B<BIGNUM>s any publicly exported function will use.
-
- #define BN_CTX_NUM  12
- typedef struct bignum_ctx
-        {
-        int tos;                    /* top of stack */
-        BIGNUM *bn[BN_CTX_NUM];     /* The variables */
-        } BN_CTX;
-
 =head1 SEE ALSO
 
+L<bn_internal(3)|bn_internal(3)>,
 L<dh(3)|dh(3)>, L<err(3)|err(3)>, L<rand(3)|rand(3)>, L<rsa(3)|rsa(3)>,
 L<BN_new(3)|BN_new(3)>, L<BN_CTX_new(3)|BN_CTX_new(3)>,
 L<BN_copy(3)|BN_copy(3)>, L<BN_num_bytes(3)|BN_num_bytes(3)>,