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Add RSA-alt to the PK layer

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This commit is contained in:
Manuel Pégourié-Gonnard
2013-08-21 12:28:31 +02:00
parent a2d3f22007
commit 12c1ff0ecb
5 changed files with 150 additions and 4 deletions
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39
include/polarssl/pk.h
View File

@@ -82,6 +82,7 @@ typedef enum {
POLARSSL_PK_ECKEY,
POLARSSL_PK_ECKEY_DH,
POLARSSL_PK_ECDSA,
POLARSSL_PK_RSA_ALT,
} pk_type_t;
/**
@@ -168,6 +169,18 @@ typedef struct
void * pk_ctx; /**< Underlying public key context */
} pk_context;
/**
* \brief Types for RSA-alt abstraction
*/
typedef int (*pk_rsa_alt_decrypt_func)( void *ctx, int mode, size_t *olen,
const unsigned char *input, unsigned char *output,
size_t output_max_len );
typedef int (*pk_rsa_alt_sign_func)( void *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
int mode, int hash_id, unsigned int hashlen,
const unsigned char *hash, unsigned char *sig );
typedef size_t (*pk_rsa_alt_key_len_func)( void *ctx );
/**
* \brief Return information associated with the given PK type
*
@@ -182,6 +195,11 @@ const pk_info_t *pk_info_from_type( pk_type_t pk_type );
*/
void pk_init( pk_context *ctx );
/**
* \brief Free a pk_context
*/
void pk_free( pk_context *ctx );
/**
* \brief Initialize a PK context with the information given
* and allocates the type-specific PK subcontext.
@@ -192,13 +210,30 @@ void pk_init( pk_context *ctx );
* \return 0 on success,
* POLARSSL_ERR_PK_BAD_INPUT_DATA on invalid input,
* POLARSSL_ERR_PK_MALLOC_FAILED on allocation failure.
*
* \note For contexts holding an RSA-alt key, use
* \c pk_init_ctx_rsa_alt() instead.
*/
int pk_init_ctx( pk_context *ctx, const pk_info_t *info );
/**
* \brief Free a pk_context
* \brief Initialiaze an RSA-alt context
*
* \param ctx Context to initialize. Must be empty (type NONE).
* \param key RSA key pointer
* \param decrypt_func Decryption function
* \param sign_func Signing function
* \param key_len_func Function returning key length
*
* \return 0 on success, or POLARSSL_ERR_PK_BAD_INPUT_DATA if the
* context wasn't already initialized as RSA_ALT.
*
* \note This function replaces \c pk_init_ctx() for RSA-alt.
*/
void pk_free( pk_context *ctx );
int pk_init_ctx_rsa_alt( pk_context *ctx, void * key,
pk_rsa_alt_decrypt_func decrypt_func,
pk_rsa_alt_sign_func sign_func,
pk_rsa_alt_key_len_func key_len_func );
/**
* \brief Get the size in bits of the underlying key

11
include/polarssl/pk_wrap.h
View File

@@ -32,6 +32,15 @@
#include "pk.h"
/* Container for RSA-alt */
typedef struct
{
void *key;
pk_rsa_alt_decrypt_func decrypt_func;
pk_rsa_alt_sign_func sign_func;
pk_rsa_alt_key_len_func key_len_func;
} rsa_alt_context;
#if defined(POLARSSL_RSA_C)
extern const pk_info_t rsa_info;
#endif
@@ -45,4 +54,6 @@ extern const pk_info_t eckeydh_info;
extern const pk_info_t ecdsa_info;
#endif
extern const pk_info_t rsa_alt_info;
#endif /* POLARSSL_PK_WRAP_H */