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Improve bntest slightly, and fix another bug in the BN library.

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This commit is contained in:
Ulf Möller
2000-02-06 15:56:59 +00:00
parent 0fad6cb7e7
commit cae55bfc68
6 changed files with 137 additions and 80 deletions
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13
doc/crypto/BN_mod_mul_reciprocal.pod
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@@ -16,6 +16,9 @@ reciprocal
int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *m, BN_CTX *ctx);
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, BIGNUM *a, BN_RECP_CTX *recp,
BN_CTX *ctx);
int BN_mod_mul_reciprocal(BIGNUM *r, BIGNUM *a, BIGNUM *b,
BN_RECP_CTX *recp, BN_CTX *ctx);
@@ -33,9 +36,13 @@ BN_RECP_CTX_init() initializes an existing uninitialized B<BN_RECP>.
BN_RECP_CTX_free() frees the components of the B<BN_RECP>, and, if it
was created by BN_RECP_CTX_new(), also the structure itself.
BN_RECP_CTX_set() computes 1/B<m> and shifts it left by
BN_num_bits(B<m>)+1 to make it an integer. The result and the
number of bits it was shifted left are stored in B<recp>.
BN_RECP_CTX_set() stores B<m> in B<recp> and sets it up for computing
1/B<m> and shifting it left by BN_num_bits(B<m>)+1 to make it an
integer. The result and the number of bits it was shifted left will
later be stored in B<recp>.
BN_div_recp() divides B<a> by B<m> using B<recp>. It places the quotient
in B<dv> and the remainder in B<rem>.
The B<BN_RECP_CTX> structure is defined as follows: