XML Security Library

LibXML2
LibXSLT
OpenSSL

bn

bn — Big numbers helper functions.

Description

Big numbers helper functions.

Functions

xmlSecOpenSSLNodeGetBNValue ()

BIGNUM *
xmlSecOpenSSLNodeGetBNValue (const xmlNodePtr cur,
                             BIGNUM **a);

Converts the node content from CryptoBinary format (http://www.w3.org/TR/xmldsig-core/sec-CryptoBinary) to a BIGNUM. If no BIGNUM buffer provided then a new BIGNUM is created (caller is responsible for freeing it).

Parameters

cur

the poitner to an XML node.

a

the BIGNUM buffer.

Returns

a pointer to BIGNUM produced from CryptoBinary string or NULL if an error occurs.


xmlSecOpenSSLNodeSetBNValue ()

int
xmlSecOpenSSLNodeSetBNValue (xmlNodePtr cur,
                             const BIGNUM *a,
                             int addLineBreaks);

Converts BIGNUM to CryptoBinary string (http://www.w3.org/TR/xmldsig-core/sec-CryptoBinary) and sets it as the content of the given node. If the addLineBreaks is set then line breaks are added before and after the CryptoBinary string.

Parameters

cur

the pointer to an XML node.

a

the BIGNUM.

addLineBreaks

if the flag is equal to 1 then linebreaks will be added before and after new buffer content.

Returns

0 on success or -1 otherwise.

Types and Values