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Added ecp_read_binary().

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Manuel Pégourié-Gonnard 2012-11-24 16:19:42 +01:00 • committed by Paul Bakker
parent 37d218a8e3
commit 5e402d88ea
4 changed files with 106 additions and 1 deletions
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21
include/polarssl/ecp.h
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@ -218,7 +218,7 @@ int ecp_group_read_string( ecp_group *grp, int radix,
/**
* \brief Export a point into unsigned binary data
*
* \param grp Group the point belongs to
* \param grp Group to which the point should belong
* \param P Point to export
* \param format Point format, should be a POLARSSL_ECP_PF_XXX macro
* \param olen Length of the actual ouput
@ -230,6 +230,25 @@ int ecp_group_read_string( ecp_group *grp, int radix,
int ecp_write_binary( const ecp_group *grp, const ecp_point *P, int format,
size_t *olen, unsigned char *buf, size_t buflen );
/**
* \brief Import a point from unsigned binary data
*
* \param grp Group to which the point should belong
* \param P Point to import
* \param format Point format, must be POLARSSL_ECP_PF_UNCOMPRESSED for now
* \param buf Input buffer
* \param ilen Actual length of input
*
* \return 0 if successful,
* POLARSSL_ERR_ECP_GENERIC if input is invalid
* POLARSSL_ERR_MPI_MALLOC_FAILED if memory allocation failed
*
* \note This function does NOT check that the point actually
* belongs to the given group, see ecp_check_pubkey() for
* that.
*/
int ecp_read_binary( const ecp_group *grp, ecp_point *P, int format,
const unsigned char *buf, size_t ilen );
/**
* \brief Set a group using well-known domain parameters
*