verification.h

00001 
00002 #ifndef _MBEDPACK_VERIFICATION_H
00003 #define _MBEDPACK_VERIFICATION_H
00004 
00005 #include "mbedtls/rsa.h"
00006 #include "mbedtls/sha1.h"
00007 #include "pack_include.h"
00008 
00009 typedef struct _verification_context_ {
00010     // internal footprint
00011     uint32_t stream_recieved_sz;    // current size of recieved stream
00012     uint32_t stream_processed_sz;   // current size of processed stream
00013     uint32_t stream_sig_stored_sz;  // size of pck_header_sig_part
00014     unsigned char* pck_header_sig_part;     // package header buffer to pck signature(include), for verify use
00015 
00016     // sha1 context
00017     mbedtls_sha1_context* ctx;
00018 
00019 } verification_context_t;
00020 
00021 /**
00022  * init rsa context
00023  *
00024  * \param rsa_ctx point to an instance of mbedtls_rsa_context struct
00025  * \return 0 if success, or failed
00026  */
00027 int mbed_rsa_ca_pkcs1_init(mbedtls_rsa_context* rsa_ctx);
00028 
00029 /**
00030  * uinit rsa context
00031  *
00032  * \param rsa_ctx point to an instance of mbedtls_rsa_context struct
00033  */
00034 void mbed_rsa_ca_pkcs1_uninit(mbedtls_rsa_context* rsa_ctx);
00035 
00036 ///////////////////////////////////////////////////////////////////////////////////////
00037 
00038 /**
00039  * verification init
00040  *
00041  * \return verification context if success, or NULL
00042  */
00043 verification_context_t* mbed_hash_init();
00044 
00045 /**
00046  * verification update key
00047  *
00048  * \param ctx verification context
00049  * \param buffer data source to gen hash
00050  * \param buffer_size
00051  */
00052 void mbed_hash_update_key(verification_context_t* ctx, unsigned char* buffer, uint32_t buffer_size);
00053 
00054 /**
00055  * verify key
00056  *
00057  * \param ctx verification context
00058  * \param buffer data source to gen hash
00059  * \param buffer_size
00060  *
00061  * \return 0 if success, or failed
00062  */
00063 int mbed_rsa_ca_pkcs1_verify(mbedtls_rsa_context* rsa, verification_context_t* ctx);
00064 
00065 /**
00066  * verification uninit
00067  *
00068  * \param ctx verification context
00069  */
00070 void mbed_hash_uninit(verification_context_t* ctx);
00071 
00072 #endif
00073