diff options
| -rw-r--r-- | lib/curl_md5.h | 29 | ||||
| -rw-r--r-- | lib/md5.c | 50 |
2 files changed, 79 insertions, 0 deletions
diff --git a/lib/curl_md5.h b/lib/curl_md5.h index ddc61e3e5..b445500fc 100644 --- a/lib/curl_md5.h +++ b/lib/curl_md5.h @@ -25,10 +25,39 @@ #ifndef CURL_DISABLE_CRYPTO_AUTH #include "curl_hmac.h" +#define MD5_DIGEST_LEN 16 + +typedef void (* Curl_MD5_init_func)(void *context); +typedef void (* Curl_MD5_update_func)(void *context, + const unsigned char *data, + unsigned int len); +typedef void (* Curl_MD5_final_func)(unsigned char *result, void *context); + +typedef struct { + Curl_MD5_init_func md5_init; /* Initialize context procedure */ + Curl_MD5_update_func md5_update; /* Update context with data */ + Curl_MD5_final_func md5_final; /* Get final result procedure */ + unsigned int md5_ctxtsize; /* Context structure size */ + unsigned int md5_resultlen; /* Result length (bytes) */ +} MD5_params; + +typedef struct { + const MD5_params *md5_hash; /* Hash function definition */ + void *md5_hashctx; /* Hash function context */ +} MD5_context; + +extern const MD5_params Curl_DIGEST_MD5[1]; extern const HMAC_params Curl_HMAC_MD5[1]; void Curl_md5it(unsigned char *output, const unsigned char *input); + +MD5_context * Curl_MD5_init(const MD5_params *md5params); +int Curl_MD5_update(MD5_context *context, + const unsigned char *data, + unsigned int len); +int Curl_MD5_final(MD5_context *context, unsigned char *result); + #endif #endif /* HEADER_CURL_MD5_H */ @@ -407,6 +407,15 @@ const HMAC_params Curl_HMAC_MD5[] = { } }; +const MD5_params Curl_DIGEST_MD5[] = { + { + (Curl_MD5_init_func) MD5_Init, /* Digest initialization function */ + (Curl_MD5_update_func) MD5_Update, /* Digest update function */ + (Curl_MD5_final_func) MD5_Final, /* Digest computation end function */ + sizeof(MD5_CTX), /* Size of digest context struct */ + 16 /* Result size */ + } +}; void Curl_md5it(unsigned char *outbuffer, /* 16 bytes */ const unsigned char *input) @@ -417,4 +426,45 @@ void Curl_md5it(unsigned char *outbuffer, /* 16 bytes */ MD5_Final(outbuffer, &ctx); } +MD5_context * Curl_MD5_init(const MD5_params *md5params) +{ + MD5_context* ctxt; + + /* Create MD5 context */ + ctxt = malloc(sizeof *ctxt); + + if(!ctxt) + return ctxt; + + ctxt->md5_hashctx = malloc(md5params->md5_ctxtsize); + + if(!ctxt->md5_hashctx) + return ctxt->md5_hashctx; + + ctxt->md5_hash = md5params; + + (*md5params->md5_init)(ctxt->md5_hashctx); + + return ctxt; +} + +int Curl_MD5_update(MD5_context *context, + const unsigned char *data, + unsigned int len) +{ + (*context->md5_hash->md5_update)(context->md5_hashctx, data, len); + + return 0; +} + +int Curl_MD5_final(MD5_context *context, unsigned char *result) +{ + (*context->md5_hash->md5_final)(result, context->md5_hashctx); + + free(context->md5_hashctx); + free(context); + + return 0; +} + #endif /* CURL_DISABLE_CRYPTO_AUTH */ |