verification seems to work now...

[avr-crypto-lib.git] / hfal-basic.c

diff --git a/hfal-basic.c b/hfal-basic.c
index 1be95d37baf310735a7ddb067773fb8473a60c7b..82c040bca00425931d525583e695a20308921017 100644 (file)
--- a/hfal-basic.c
+++ b/hfal-basic.c
@@ -24,21 +24,23 @@
 
 uint8_t hfal_hash_init(const hfdesc_t* hash_descriptor, hfgen_ctx_t* ctx){
        hf_init_fpt f;
+       uint16_t tmp;
        ctx->desc_ptr = (hfdesc_t*)hash_descriptor;
-       if(!(ctx->ctx=malloc(pgm_read_word(&(hash_descriptor->ctxsize_B)))))
+       tmp = pgm_read_word(&(hash_descriptor->ctxsize_B));
+       if(!(ctx->ctx=malloc(tmp)))
                return 3;
        f= (hf_init_fpt)pgm_read_word(&(hash_descriptor->init));
        f(ctx->ctx);
        return 0;
 }
-       
+
 void hfal_hash_nextBlock(hfgen_ctx_t* ctx, const void* block){
        hf_nextBlock_fpt f;
        hfdesc_t* x=(ctx->desc_ptr);
        f =(hf_nextBlock_fpt)pgm_read_word(&(x->nextBlock));
        f(ctx->ctx, block);
 }
-       
+
 void hfal_hash_lastBlock(hfgen_ctx_t* ctx, const void* block, uint16_t length_b){
        hf_lastBlock_fpt f;
        hfdesc_t* x=ctx->desc_ptr;
@@ -68,7 +70,7 @@ void hfal_hash_mem(const hfdesc_t* hash_descriptor, void* dest, const void* msg,
        if(f){
                ((hf_mem_fpt)f)(dest, msg, length_b);
        }else{
-               
+
                uint16_t bs,bsb;
                uint8_t ctx[pgm_read_word(&(hash_descriptor->ctxsize_B))];
                f=(void_fpt)pgm_read_word(&(hash_descriptor->init));
@@ -86,7 +88,7 @@ void hfal_hash_mem(const hfdesc_t* hash_descriptor, void* dest, const void* msg,
                f=(void_fpt)pgm_read_word(&(hash_descriptor->ctx2hash));
                ((hf_ctx2hash_fpt)f)(dest, ctx);
        }
-} 
+}
 
 uint16_t hfal_hash_getBlocksize(const hfdesc_t* hash_descriptor){
        uint16_t ret;