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Add eckey to ecdsa conversion in the PK layer

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Manuel Pégourié-Gonnard 2013-08-09 15:04:26 +02:00
parent b4d69c41f8
commit 211a64c79f
3 changed files with 69 additions and 0 deletions
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31
include/polarssl/pk.h
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@ -33,6 +33,10 @@
#include "rsa.h"
#endif
#if defined(POLARSSL_ECDSA_C)
#include "ecdsa.h"
#endif
#define POLARSSL_ERR_PK_MALLOC_FAILED -0x2F80 /**< Memory alloation failed. */
#define POLARSSL_ERR_PK_TYPE_MISMATCH -0x2F00 /**< Type mismatch, eg attempt to use a RSA key as EC, or to modify key type */
@ -107,6 +111,33 @@ void pk_free( pk_context *ctx );
*/
int pk_set_type( pk_context *ctx, pk_type_t type );
#if defined(POLARSSL_ECDSA_C)
/**
* \brief Convert a generic EC key into an ECDSA context
*
* \param ctx Context to convert
*
* \return 0 on success, or
* POLARSSL_ERR_PK_MALLOC_FAILED or
* POLARSSL_ERR_PK_TYPE_MISMATCH.
*/
int pk_ec_to_ecdsa( pk_context *ctx );
/**
* \brief Tell if a PK context can be used for ECDSA
*
* \param ctx Context to check
*
* \return 0 if context cannot be used for ECDSA,
* 1 otherwise
*/
static inline int pk_can_ecdsa( pk_context ctx )
{
return( ctx.type == POLARSSL_PK_ECKEY ||
ctx.type == POLARSSL_PK_ECDSA );
}
#endif /* POLARSSL_ECDSA_C */
#if defined(POLARSSL_RSA_C)
/**
* \brief Wrap a RSA context in a PK context