v7 man page for bn_ctx_new

Query: bn_ctx_new

OS: v7

Section: 3ssl

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

BN_CTX_new(3SSL)						      OpenSSL							  BN_CTX_new(3SSL)

NAME
BN_CTX_new, BN_CTX_init, BN_CTX_free - allocate and free BN_CTX structures SYNOPSIS
#include <openssl/bn.h> BN_CTX *BN_CTX_new(void); void BN_CTX_init(BN_CTX *c); void BN_CTX_free(BN_CTX *c); DESCRIPTION
A BN_CTX is a structure that holds BIGNUM temporary variables used by library functions. Since dynamic memory allocation to create BIGNUMs is rather expensive when used in conjunction with repeated subroutine calls, the BN_CTX structure is used. BN_CTX_new() allocates and initializes a BN_CTX structure. BN_CTX_init() initializes an existing uninitialized BN_CTX. BN_CTX_free() frees the components of the BN_CTX, and if it was created by BN_CTX_new(), also the structure itself. If BN_CTX_start(3) has been used on the BN_CTX, BN_CTX_end(3) must be called before the BN_CTX may be freed by BN_CTX_free(). RETURN VALUES
BN_CTX_new() returns a pointer to the BN_CTX. If the allocation fails, it returns NULL and sets an error code that can be obtained by ERR_get_error(3). BN_CTX_init() and BN_CTX_free() have no return values. SEE ALSO
bn(3), ERR_get_error(3), BN_add(3), BN_CTX_start(3) HISTORY
BN_CTX_new() and BN_CTX_free() are available in all versions on SSLeay and OpenSSL. BN_CTX_init() was added in SSLeay 0.9.1b. 1.0.1e 2013-02-11 BN_CTX_new(3SSL)
Related Man Pages
bn_ctx_free(3ssl) - debian
bn_ctx_free(3) - centos
bn_ctx_init(3) - centos
bn_ctx_new(3ssl) - linux
bn_ctx_new(3ssl) - v7
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