Vboot Reference: Make length types explicitly sized.

src/platform/vboot_reference/crypto/sha2.c

 /* SHA-256 and SHA-512 implementation based on code by Oliver Gay
  * <olivier.gay@a3.epfl.ch> under a BSD-style license. See below.
  */
 
 /*
  * FIPS 180-2 SHA-224/256/384/512 implementation
  * Last update: 02/02/2007
  * Issue date:  04/30/2005
  *
  * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
@@ skipping 314 matching lines @@
     ctx->h[0] += wv[0]; ctx->h[1] += wv[1];
     ctx->h[2] += wv[2]; ctx->h[3] += wv[3];
     ctx->h[4] += wv[4]; ctx->h[5] += wv[5];
     ctx->h[6] += wv[6]; ctx->h[7] += wv[7];
 #endif /* !UNROLL_LOOPS */
   }
 }
 
 
 
-void SHA256_update(SHA256_CTX* ctx, const uint8_t* data, int len) {
+void SHA256_update(SHA256_CTX* ctx, const uint8_t* data, uint64_t len) {
     unsigned int block_nb;
     unsigned int new_len, rem_len, tmp_len;
     const uint8_t *shifted_data;
 
     tmp_len = SHA256_BLOCK_SIZE - ctx->len;
     rem_len = len < tmp_len ? len : tmp_len;
 
     memcpy(&ctx->block[ctx->len], data, rem_len);
 
     if (ctx->len + len < SHA256_BLOCK_SIZE) {
@@ skipping 167 matching lines @@
     ctx->h[0] += wv[0]; ctx->h[1] += wv[1];
     ctx->h[2] += wv[2]; ctx->h[3] += wv[3];
     ctx->h[4] += wv[4]; ctx->h[5] += wv[5];
     ctx->h[6] += wv[6]; ctx->h[7] += wv[7];
 #endif /* !UNROLL_LOOPS */
   }
 }
 
 
 void SHA512_update(SHA512_CTX* ctx, const uint8_t* data,
-                   int len) {
+                   uint64_t len) {
     unsigned int block_nb;
     unsigned int new_len, rem_len, tmp_len;
     const uint8_t* shifted_data;
 
     tmp_len = SHA512_BLOCK_SIZE - ctx->len;
     rem_len = len < tmp_len ? len : tmp_len;
 
     memcpy(&ctx->block[ctx->len], data, rem_len);
 
     if (ctx->len + len < SHA512_BLOCK_SIZE) {
@@ skipping 54 matching lines @@
     UNPACK64(ctx->h[6], &ctx->buf[48]);
     UNPACK64(ctx->h[7], &ctx->buf[56]);
 #endif /* !UNROLL_LOOPS */
 
     return ctx->buf;
 }
 
 
 
 /* Convenient functions. */
-uint8_t* SHA256(const uint8_t* data, int len, uint8_t* digest) {
+uint8_t* SHA256(const uint8_t* data, uint64_t len, uint8_t* digest) {
   const uint8_t* p;
   int i;
   SHA256_CTX ctx;
   SHA256_init(&ctx);
   SHA256_update(&ctx, data, len);
   p = SHA256_final(&ctx);
   for (i = 0; i < SHA256_DIGEST_SIZE; ++i) {
     digest[i] = *p++;
   }
   return digest;
 }
 
 
-uint8_t* SHA512(const uint8_t* data, int len, uint8_t* digest) {
+uint8_t* SHA512(const uint8_t* data, uint64_t len, uint8_t* digest) {
   const uint8_t* p;
   int i;
   SHA512_CTX ctx;
   SHA512_init(&ctx);
   SHA512_update(&ctx, data, len);
   p = SHA512_final(&ctx);
   for (i = 0; i < SHA512_DIGEST_SIZE; ++i) {
     digest[i] = *p++;
   }
   return digest;
 }